Aug
09.
Here is my weekly weather quiz question. In aviation what does “MVFR” mean?
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An Upper Level Low Pressure Trough (“U” shape) keeps our weather pattern stable with a bit above normal temperatures. Upper level High Pressure takes over for serious heating starting Saturday. The graphics for days 1-3 show a cold front moving into the Pacific Northwest today for cooling, but it won’t be a rain producer and it won’t last long. The graphics for days 3-7 Saturday through Wednesday show a frontal system to our north next Monday, but none moving into the Pacific Northwest.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 31 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 31 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- NONE AT THIS TIME.
HEALTH ADVISORIES:
- A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR THE ROSS ISLAND LAGOON 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,
- AM clouds and sun, sunny and a bit cooler Thursday afternoon, clear Thursday night,
- Then sunny and a bit warmer Friday and Saturday, clear both nights,
- lows 58-56 Thursday night warming to 60 Saturday night highs 83-92.
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
- Mostly sunny and a bit warmer, Hot, Monday, mostly clear at night,
- Sunny and a bit cooler, still Hot Tuesday, mostly clear Tuesday night,
- Then mostly sunny and Hot Wednesday.
- highs 96-100 cooling to 98 Tuesday and Wednesday lows 63-60. (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.
*It looks like the pollen season is over.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear this evening, mostly cloudy late tonight,
- AM clouds, sunny and a bit cooler Thursday afternoon, clear Thursday night,
- Then sunny and a bit warmer Friday and Saturday, clear both nights.
- lows 62-58 warming to 64 Saturday night highs 89-93.
- Sunny and a bit warmer, Hot, Sunday, mostly clear Sunday night,
- Mostly sunny and a bit warmer, Hot Monday, mostly clear at night,
- Sunny and Hot Tuesday, mostly clear Tuesday night,
- Then mostly sunny and a bit warmer, Hot, Wednesday.
- highs 97-100 lows 67-63 warming back to 67 Tuesday night. (seasonal averages high 87 low 58)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear with patchy evening coastal fog and mostly cloudy with patchy coastal fog late tonight while becoming mostly cloudy with patchy inland fog late tonight,
- AM clouds with patchy dense fog, sunny and a bit warmer Thursday afternoon, mostly clear with patchy fog late Thursday night,
- Patchy AM coastal fog, sunny Friday, clear at night,
- Sunny Saturday, then mostly clear Saturday night.
- lows 62-58 warming to 60 Saturday night highs near 78.
- Mostly sunny Sunday and Monday, mostly clear both nights,
- Then mostly sunny Tuesday and Wednesday, mostly clear Tuesday night.
- highs near 78 lows 59-57. (seasonal averages high 67 low 54)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Partly cloudy with evening haze, just partly cloudy late tonight,
- Mostly sunny and a bit cooler Thursday, evening haze, clear late Thursday night,
- Sunny and a bit warmer Friday and Saturday, mostly clear both nights.
- free air freezing level 15,000 ft. tonight and Thursday, 16,000 ft. Thursday night, 15,000 ft. Friday and Friday night, then 16,000 ft. Saturday and Saturday night.
- lows 46-52 highs 70-79.
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
- Mostly sunny and a bit warmer Monday, partly cloudy at night,
- Then mostly sunny Tuesday and Wednesday, mostly clear Tuesday night.
- free air freezing level 16,000 ft. Sunday through Monday, then above 16,000 ft. Tuesday through Wednesday.
- highs near 85 lows near 55.
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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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