Here is my new weekly weather quiz question. What is a “Fogbow?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level High Pressure Ridge (Shaded “Arch” shape formed by arrows) has formed over is while the Upper Level Low remains well out over the ocean. This spells H-O-T weather for a few days.  The graphics for days 1-3 show a cold front offshore stuck behind the Ridge. The graphics for days 3-7  show frontal activity picks up Friday and Saturday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 28 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 43 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 26 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A HEAT ADVISORY IS IN EFFECT FROM 2 PM TUESDAY UNTIL 11 PM THURSDAY FOR THE LOWER COLUMBIA, THE SOUTH WILLAMETTE VALLEY, THE NORTHERN CASCADE FOOTHILLS, AND THE CASCADE FOOTHILLS IN LANE COUNTY.
• AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY EVENING FOR THE EAST COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, THE GRANDE RONDE VALLEY, WALLOWA COUNTY, THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my new weekly weather quiz question. What is a “Fogbow?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) is sitting off the coast returning the increase to hot temperatures.  The graphics for days 1-3 show a cold front offshore. The graphics for days 3-7  show frontal activity picks up Friday and Saturday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 24 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 35 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 23 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY EVENING FOR THE EAST COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, THE GRANDE RONDE VALLEY, WALLOWA COUNTY, THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my weekly weather quiz question for the last time. What is a “Foehn?” Here is the correct answer.  A Foehn is a warm, dry wind on the lee side of a mountain range, the warmth and dryness of the air being due to adiabatic compression as the air descends the mountain slopes. In the United States, the term chinook is used for Foehn winds in the Rocky and Sierra mountains. I’ll have a new weekly weather quiz question for you starting Monday The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) is sitting off the coast returning the increase to hot temperatures.  The graphics for days 1-3 show a cold front offshore Tuesday. The graphics for days 3-7  show frontal activity picks up Friday and Saturday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 31 in the Good category measuring Ozine.

Oakridge: The Air Quality Index is 40 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 26 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY EVENING FOR THE EAST COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, THE GRANDE RONDE VALLEY, WALLOWA COUNTY, THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my weekly weather quiz question for the last time. What is a “Foehn?” Here is the correct answer.  A Foehn is a warm, dry wind on the lee side of a mountain range, the warmth and dryness of the air being due to adiabatic compression as the air descends the mountain slopes. In the United States, the term chinook is used for Foehn winds in the Rocky and Sierra mountains. I’ll have a new weekly weather quiz question for you starting Monday The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) will approach the coast returning the increase to hot temperatures.  The graphics for days 3-7  show frontal activity picks up Tuesday and Friday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 23 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 21 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my weekly weather quiz question for the last time. What is a “Foehn?” Here is the correct answer.  A Foehn is a warm, dry wind on the lee side of a mountain range, the warmth and dryness of the air being due to adiabatic compression as the air descends the mountain slopes. In the United States, the term chinook is used for Foehn winds in the Rocky and Sierra mountains. I’ll have a new weekly weather quiz question for you starting Monday The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) will approach the coast returning the increase to hot temperatures.  The graphics for days 3-7  show frontal activity picks up Tuesday and Friday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 35 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 22 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 32 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A RED FLAG WARNING IS IN EFFECT FOR LIGHTNING ON DRY FUELS UNTIL 9 PM THIS EVENING FOR THE KLAMATH BASIN, THE FREMONT-WINEMA NATIONAL FOREST, AND THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE COUNTY AND WESTERN HARNEY COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my weekly weather quiz question for the last time. What is a “Foehn?” Here is the correct answer.  A Foehn is a warm, dry wind on the lee side of a mountain range, the warmth and dryness of the air being due to adiabatic compression as the air descends the mountain slopes. In the United States, the term chinook is used for Foehn winds in the Rocky and Sierra mountains. I’ll have a new weekly weather quiz question for you starting Monday The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) will move through Oregon and then another trough will approach the coast late in the weekend returning the hot temperatures. The graphics for days 1-3 show a cold front offshore Sunday morning. The graphics for days 3-7  frontal activity picks up Wednesday and Wednesday night.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 22 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my weekly weather quiz question. What is a “Foehn?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) will move through Oregon and then another trough will approach the coast late in the weekend returning the hot temperatures. The graphics for days 1-3 show a cold front offshore Sunday morning. The graphics for days 3-7  frontal activity picks up Wednesday and Wednesday night.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS WITH LOW RELATIVE HUMIDITY UNTIL 8 PM THIS EVENING FOR THE KLAMATH BASIN AND THE FREMONT-WINNEMA NATIONAL FOREST.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR THE WILLAMETTE RIVER’S ROSS ISLAND LAGOON LOCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED, BUT RESULTS FROM ANALYSIS OF THE SAMPLE WON’T BE AVAILABLE UNTIL NEXT WEEK. AT THAT TIME, DEPENDING ON THE LEVEL OF THE TOXINS FOUND IN THE SAMPLE, OHA PUBLIC HEALTH DIVISION OFFICIALS WILL DETERMINE IF THE ADVISORY CAN BE LIFTED OR KEPT IN PLACE UNTIL THE BLOOM IS GONE. THE LAGOON. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANBY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED.
• A RECREATIONAL USE HEALTH ADVISORY CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my weekly weather quiz question. What is a “Foehn?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level High Pressure Ridge (Shaded “Arch” shape formed by arrows) is giving way to an Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) which is approaching from the west. The low will increase marine airflow which will keep us in the cooling trend through the weekend. The graphics for days 1-3 show the weak cold front that fell apart but still has cool air behind it. The graphics for days 3-7  show no major frontal systems heading our way Sunday through Wednesday, but frontal activity picks up Wednesday and Thursday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 23 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS WITH LOW RELATIVE HUMIDITY FROM 2 PM UNTIL 8 PM TODAY FOR THE KLAMATH BASIN AND THE FREMONT-WINNEMA NATIONAL FOREST.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN LIFTED FOR ALL OF LAKE BILLY CHINOOK. THE LAKE IS LOCATED ABOUT 12 MILES WEST OF MADRAS, OREGON. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE NOW BELOW RECREATIONAL VALUES FOR HUMAN EXPOSURE IN THE METOLIUS, DESCHUTES, AND CROCKED RIVER ARMS OF LAKE BILLY CHINOOK. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my weekly weather quiz question. What is a “Foehn?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level High Pressure Ridge (Shaded “Arch” shape formed by arrows) is giving way to an Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) which is approaching from the west. The low will increase marine airflow which will keep us in the cooling trend through the weekend. The graphics for days 1-3 show the weak cold front that fell apart but still has cool air behind it. The graphics for days 3-7  show no major frontal systems heading our way Sunday through Wednesday, but frontal activity picks up Wednesday and Thursday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 26 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 29 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 25 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS, LOW HUMIDITY AND THUNDERSTORMS WITH GUSTY OUTFLOWS UNTIL 11 PM TONIGHT FOR THE LOWER COLUMBIA BASIN.
• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS WITH LOW RELATIVE HUMIDITY FROM 2 PM UNTIL 8 PM FRIDAY FOR THE KLAMATH BASIN AND THE FREMONT-WINNEMA NATIONAL FOREST.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN LIFTED FOR ALL OF LAKE BILLY CHINOOK. THE LAKE IS LOCATED ABOUT 12 MILES WEST OF MADRAS, OREGON. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE NOW BELOW RECREATIONAL VALUES FOR HUMAN EXPOSURE IN THE METOLIUS, DESCHUTES, AND CROCKED RIVER ARMS OF LAKE BILLY CHINOOK. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

________________

Here is my weekly weather quiz question. What is a “Foehn?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

An Upper Level High Pressure Ridge (Shaded “Arch” shape formed by arrows) is giving way to an Upper Level Low Pressure Trough (Shaded “U” shape formed by arrows) which is approaching from the west. The low will increase marine airflow which will keep us in the cooling trend through the weekend. The graphics for days 1-3 show the weak cold front that fell apart but still has cool air behind it. The graphics for days 3-7  show no major frontal systems heading our way Sunday through Wednesday, but frontal activity picks up Wednesday and Thursday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 28 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 43 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 27 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS, LOW HUMIDITY AND THUNDERSTORMS WITH GUSTY OUTFLOWS UNTIL 11 PM TONIGHT FOR THE LOWER COLUMBIA BASIN.
• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS WITH LOW RELATIVE HUMIDITY FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR THE KLAMATH BASIN AND THE FREMONT-WINNEMA NATIONAL FOREST.
• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS WITH LOW RELATIVE HUMIDITY FROM THIS AFTERNOON THROUGH THURSDAY EVENING FOR THE BURNS BLM.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE  COUNTY. WILDFIRE SMOKE AND AND OZONE POLLUTION WILL COMBINE TO CAUSE AIR QUALITY TO FLUCTUATE AND COULD BE UNHEALTHY FOR SENSITIVE GROUPS. LIMIT OUTDOOR ACTIVITIES, ESPECIALLY DURING THE HOTTEST TIME OF THE DAY AND KEEP CHILDREN INDOORS IF IT IS SMOKY.

HEALTH ADVISORIES:

• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR ODEL LAKE, LOCATED 75 MILES SOUTHEAST OF EUGENE OFF HIGHWAY 58 IN LANE COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN LIFTED FOR ALL OF LAKE BILLY CHINOOK. THE LAKE IS LOCATED ABOUT 12 MILES WEST OF MADRAS, OREGON. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE NOW BELOW RECREATIONAL VALUES FOR HUMAN EXPOSURE IN THE METOLIUS, DESCHUTES, AND CROCKED RIVER ARMS OF LAKE BILLY CHINOOK. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH CONTINUES FOR PART OF DETROIT LAKE, LOCATED 46 MILES SOUTHEAST OF SALEM.  THE ADVISORY CONTINUES FOR THE AREA AROUND THE LOG BOOM, AND EXTENDS THROUGH BIG CLIFF LAKE. BIG CLIFF LAKE IS LOCATED ALONG OREGON ROUTE 22 BELOW DETROIT DAM. WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

 

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