Aug
13.
Here is my weekly weather quiz question for the last time. In aviation what does “MVFR” mean? Here is the correct answer. MVFR Marginal Visual Flight Rules – in an aviation product, refers to the general weather conditions pilots can expect at the surface. VFR stands for Visual Flight Rules and MVFR means Minimum or Marginal Visual Flight Rules. MVFR criteria means a ceiling between 1,000 and 3,000 feet and/or 3 to 5 miles visibility.
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An Upper Level High Pressure Ridge takes over for serious heating. The graphics for days 1-3 show no fronts moving into the Pacific Northwest. The graphics for days 3-7 Wednesday through Sunday show a frontal system to our north all of next week but it won’t be moving into the Pacific Northwest until next Saturday and Sunday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 45 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 59 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 45 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM WEDNESDAY FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE NORTHERN OREGON CASCADE FOOTHILLS, AND THE CASCADE FOOTHILLS IN LANE COUNTY.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 10 PM THURSDAY FOR THE LOWER COLUMBIA, THE UPPER HOOD RIVER VALLEY, THE WESTERN COLUMBIA RIVER GORGE, AND THE CENTRAL COLUMBIA RIVER GORGE.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 10 PM TUESDAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON, THE COAST RANGE OF NORTHWEST OREGON, AND THE LOWER COLUMBIA.
- A HEAT ADVISORY IS IN EFFECT FROM 1 PM MONDAY UNTIL 11 PM WEDNESDAY FOR SISKIYOU MOUNTAINS AND THE SOUTH CENTRAL OREGON CASCADES.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM THURSDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND THE SOUTH CENTRAL OREGON CASCADES.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM THURSDAY THURSDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM THURSDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS AND THE SOUTH CENTRAL OREGON CASCADES.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PH THURSDAY FOR THE SISKIYOU MOUNTAINS AND THE SOUTHERN OREGON CASCADES.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT FROM 11 AM MONDAY UNTIL 11 PM THURSDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, AND NORTH CENTRAL OREGON.
- AN EXCESSIVE HEAT WATCH IS IN EFFECT UNTIL 8 PM MONDAY EVENING FOR THE NORTH OREGON COAST.
- A HEAT ADVISORY IS IN EFFECT FROM 11 AM TODAY UNTIL 10 PM THURSDAY FOR THE NORTHERN OREGON CASCADES, AND THE CASCADES IN LANE COUNTY.
- A HEAT ADVISORY IS IN EFFECT UNTIL 5 AM MONDAY FOR THE NORTH OREGON COAST.
- A HEAT ADVISORY IS IN EFFECT FROM 1 PM MONDAY UNTIL 11 PM WEDNESDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS AND THE SOUTH CENTRAL OREGON CASCADES.
- A HEAT ADVISORY IS IN EFFECT FROM 11 AM MONDAY UNTIL 11 PM THURSDAY FOR THE GRANDE RONDE VALLEY, WALLOWA COUNTY, THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE OCHOCO, THE JOHN DAY HIGHLANDS, WALLOWA COUNTY, THE EAST SLOPES OF THE OREGON CASCADES, CENTRAL OREGON, AND THE NORTHWEST BLUE MOUNTAINS.
- A HEAT ADVISORY IS IN EFFECT 1 POM MONDAY UNTIL 11 PM WEDNESDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
- A RED FLAG WARNING IS IN EFFECT UNTIL 8 PM MONDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE CENTRAL OREGON CASCADE FOOTHILLS AND THE WILLAMETTE NATIONAL FOREST.
- A RED FLAG WARNING IS IN EFFECT THROUGH MONDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTH OREGON CASCADE FOOTHILLS AND THE MT. HOOD NATIONAL FOREST WEST OF CASCADE CREST.
- A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE CENTRAL OREGON COAST RANGE AND THE WILLAMETTE VALLEY.
- A RED FLAG WARNING IS IN EFFECT FROM 2 PM UNTIL 8 PM MONDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN SISKIYOU NATIONAL FOREST.
- A RED FLAG WARNING IS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE UMPQUA BASIN , THE UMPQUA NATIONAL FOREST, THE WESTERN ROGUE BASIN INCLUDING THE ILLINOIS VALLEY, THE SISKIYOU MOUNTAINS, THE EASTERN ROUGE VALLEY, AND THE SOUTHERN OREGON CASCADES.
- AN AIR QUALITY ADVISORY IS IN EFFECT FOR THE SOUTH WILLAMETE VALLEY, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE CASCADES IN LANE COUNTY. DUE TO WILDFIRE SMOKE WHICH COULD BACK UP INTO THE EUGENE-SPRINGFIELD AREA.
HEALTH ADVISORIES:
- A RECREATIONAL USE HEALTH ADVISORY HAS BEEN EXPANDED FOR THE AREA FROM THE ROSS ISLAND LAGOON TO RIVERPLACE MARINA IN MULTNOMAH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS CATCH AND RELEASE FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS. DRINKING WATER FROM THE LAKE IS ESPECIALLY DANGEROUS.
- A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR THE WILLAMETTE RIVER NEAR WILLAMETTE COVE IN MULTNOMAH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.DO NOT DRINK THE WATER.
- A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR ARRONS LAKE, PETE’S SLOUGH, AND STURGEON LAKE ON SAUVIE ISLAND DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
- A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR AGENCY LAKE AND EXTENDED THE ADVISORY FOR THE SOUTHERN PORTION OF UPPER KLAMATH LAKE, FROM HOWARD’S BAY SOUTH TO THE LINK RIVER DAM IN KLAMATH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE RESERVOIR WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
- 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,
- A mix of clouds and sun and a bit warmer, Very Hot, Monday, partly cloudy Monday night,
- Some AM clouds, sunny and slightly cooler, still Very Hot Tuesday, mostly clear at night,
- Sunny and a bit cooler, still hot, Wednesday, then mostly clear Wednesday night.
- lows 64-67 cooling to 63 Tuesday night and Wednesday night highs 109-103.
- Mostly sunny and slightly cooler, still Very Hot Thursday, partly cloudy Thursday night,
- Mostly sunny and a bit cooler Friday and Saturday, mostly clear both nights,
- Then mostly sunny Sunday.
- highs 98-88 lows 59-53 warming to 55.Saturday night (seasonal averages high 85 low 52)
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Eugene-Springfield Pollen Count:
Grass Pollen: Absent (0)
Weeds: Moderate (10)
Tree Pollen: Low (2)
Last counted: 8.8.23
Data courtesy of Oregon Allergy Associates.
The pollen season is over.
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Forecast for the Umpqua Valley including Roseburg:
- Clear and hazy tonight with patchy smoke late tonight,
- Hazy with patchy AM smoke, sunny and hazy and a bit warmer, Very Hot Monday, mostly clear and hazy Monday night,
- Sunny and a bit cooler, still Very Hot Tuesday, mostly clear at night,
- Sunny and a bit cooler, still Hot, Wednesday, then partly cloudy Wednesday night.
- lows 67-70 cooling to 67 Wednesday night highs 110-105.
- Partly cloudy and a bit cooler, still Hot Thursday, partly cloudy Thursday night,
- Mostly sunny and a bit cooler Friday, mostly clear at night,
- Mostly sunny and a bit cooler Saturday, mostly clear with a slight (20%) chance of evening thunderstorms, just partly cloudy late Saturday night,
- Then sunny and a bit cooler Sunday.
- highs 100-87 lows 64-58. (seasonal averages high 86 low 58)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear and hazy tonight,
- AM clouds, sunny and a bit warmer Monday afternoon, mostly cloudy in the evening, becoming clear at night,
- Partly cloudy and a bit cooler Tuesday, partly cloudy Tuesday night,
- Sunny and a bit cooler Wednesday, then partly cloudy Wednesday night.
- lows 60-62 cooling to 59 Wednesday night highs 87-78.
- Partly cloudy and a bit cooler Thursday partly cloudy at night,
- Sunny Friday, partly cloudy Friday night,
- Sunny Saturday, partly cloudy Saturday night,
- Some AM clouds, sunny Sunday afternoon.
- highs near 75 lows 59-56. (seasonal averages high 67 low 54)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Hazy with areas of evening smoke, mostly clear late tonight,
- Sunny and a bit warmer Monday, mostly clear and hazy with areas of evening smoke, mostly clear and hazy late Monday night,
- Mostly sunny with a slight (20%) chance of showers and thunderstorms Tuesday afternoon, a slight (20%) chance of evening showers and thunderstorms, just mostly clear late at night,
- Mostly sunny and a bit cooler Wednesday, then partly cloudy Wednesday night.
- free air freezing level above 16,000 ft. tonight through Monday night, snow level above 8,000 ft. Tuesday and Tuesday night, then free air freezing level 16,000 ft. Wednesday and Wednesday night.
- lows 59-64 cooling back to 59 Tuesday night warming to 62 Wednesday night highs 92-90.
- Partly cloudy and a bit cooler Thursday, partly cloudy Thursday night,
- Mostly sunny and a bit cooler Friday, mostly clear at night,
- Mostly sunny and a bit cooler with a slight (20%) chance of showers Saturday afternoon, partly cloudy with a slight (20%)
- chance of evening showers, just partly cloudy late Saturday night,
- Then mostly sunny and a bit cooler with a slight (20%) chance of showers Sunday afternoon.
- free air freezing level 15,000 ft. Thursday through Friday night, then snow level above 8,000 ft. Saturday through Sunday.
- highs 85-73 lows 56-49.
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For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com
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