Aug
01.
Check out my latest Eugene Daily News Weather Or Not column:
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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.
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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 Friday through Monday, but frontal activity picks up Tuesday and next Wednesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 44 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 36 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 38 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS, LOW HUMIDITY AND THUNDERSTORMS WITH GUSTY OUTFLOWS UNTIL 10 PM TONIGHT FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES AND THE EAST SLOPES OF THE CENTRAL OREGON CASCADES.
- A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS, LOW HUMIDITY AND THUNDERSTORMS WITH GUSTY OUTFLOWS UNTIL 11 PM THURSDAY 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 THURSDAY 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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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy tonight,
- AM clouds, partly cloudy and a bit cooler Thursday afternoon and at night,
- AM clouds, partly cloudy and a bit warmer Friday afternoon, mostly clear Friday night,
- Partly cloudy Saturday AM, mostly sunny and a bit warmer in the afternoon, then mostly clear at night.
- lows near 52 highs 75-82.
- AM sun, partly cloudy and a bit warmer Sunday, mostly clear at night,
- Mostly sunny Monday AM, partly cloudy and a bit warmer in the afternoon, mostly clear Monday night,
- AM sun, partly cloudy and a bit warmer Tuesday afternoon, mostly clear late at night,
- AM sun, then partly cloudy Wednesday afternoon.
- highs 84-90 lows near 55. (seasonal averages high 84 low 52)
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Eugene-Springfield Pollen Count
Grass………. Low (2)
Trees………. Low (2)
Last Counted: 8/1/18
Data Courtesy of Oregon Allergy Associates
Note: The Grass Pollen Season is all but over. Pollen counts will be shown as the numbers drop off, but updates will be less frequent.
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Forecast for Roseburg:
- Mostly clear tonight,
- Mostly cloudy with patchy fog and areas of drizzle Thursday AM, mostly sunny and a bit cooler in the afternoon, clear in the evening, partly cloudy Thursday night,
- AM clouds with a slight (20%) chance of drizzle, partly cloudy and a bit warmer Friday afternoon, mostly clear at night,
- Mostly sunny and a bit warmer Saturday, then mostly clear Saturday night.
- lows 56-58 cooling back to 56 Saturday night highs 77-84.
- AM sun, partly cloudy and a bit cooler Sunday afternoon and at night,
- Partly cloudy and a bit warmer Monday, mostly clear with patchy smoke Monday night,
- Mostly sunny with patchy smoke and a bit warmer Tuesday, mostly clear with patchy smoke at night,
- AM sun and patchy smoke, then sunny and a bit warmer Wednesday afternoon.
- highs 82-92 lows near 58. (seasonal averages high 86 low 57)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Clear this evening, mostly cloudy with patchy coastal fog and drizzle late tonight,
- AM clouds and patchy fog with patchy coastal drizzle, partly cloudy and a bit warmer Thursday afternoon, clear in the evening, partly cloudy late at night,
- Patchy fog and a slight chance of AM drizzle, just mostly cloudy and a bit warmer Friday afternoon, clear in the evening, partly cloudy late Friday night,
- Partly cloudy Saturday AM, sunny in the afternoon, mostly clear in the evening, then partly cloudy Saturday night.
- lows 57-53 highs 65-67.
- Partly cloudy Sunday and Sunday night,
- Partly cloudy and a bit warmer Monday and Monday and at night,
- Mostly cloudy sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Then partly cloudy and a bit warmer Wednesday.
- highs 65-72 lows near 55. (seasonal averages high 65 low 53)
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Forecast for the Cascades in Lane County:
- Mostly clear and a bit cooler tonight,
- Some AM clouds, mostly sunny and a bit cooler Thursday, partly cloudy and cooler at night,
- Partly cloudy Friday AM, mostly sunny and a bit cooler in the afternoon, mostly clear Friday night,
- Mostly sunny and a bit warmer Saturday, then mostly clear at night.
- free air freezing level 15,000 ft. tonight, 14,000 ft. Thursday and Thursday night, 13,000 ft. Friday and Friday night, 13,000 ft. falling to 12,000 ft. Saturday afternoon, then 12,000 ft. rising to 13,000 ft. Saturday night.
- lows 46-43 warming back to 46 Saturday night highs 70-65 warming to 68 Saturday.
- AM sun, partly cloudy and a bit warmer Sunday afternoon and Monday afternoon, partly cloudy both nights,
- A mix of clouds and sun in the AM, partly cloudy and a bit warmer Tuesday afternoon and Tuesday night,
- Mostly sunny Wednesday AM, then partly cloudy and a bit warmer in the afternoon.
- free air freezing level 13,000 ft. falling to 12,000 ft. Saturday, 12,000 ft. rising to 13,000 ft. Saturday night, 13,000 ft. Sunday, 13,000 ft. rising to 14,000 ft. Sunday night, 14,000 ft. Monday, 14,000 ft. rising to 15,000 ft. Monday night, then 15,000 ft. Tuesday through Wednesday.
- highs 72-82 lows 47-49.
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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
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