Aug
02.
Here is my weekly weather quiz question. “What is “Smog?”
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An Upper Level High Pressure Ridge (“Arch” shape) brought heat to the Pacific Northwest. A weak disturbance helps to drop temperatures. The graphics for days 1-3 show the frontal system that pushes through Oregon overnight and today for cooling. The graphics for days 3-7 Tuesday through Saturday show no frontal systems moving through the Pacific Northwest through the period.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 34 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 60 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 46 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT FROM 11 AM UNTIL 11 PM TODAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR THE UMPQUA NATIONAL FOREST, THE KLAMATH BASIN AND THE FREMONY-WINEMA NATIONAL FOREST, THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND AND WESTERN HARNEY COUNTY.
- A RED FLAG WARNING IS IN EFFECT FROM 3 PM MDT TODAY UNTIL 6 AM MDT SUNDAY FOR LIGHTNING FOR THE BURNS BLM, THE VALE BLM, AND THE BAKER VALLEY.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT FROM 2 PM TODAY UNTIL 7 AM SUNDAY FOR ABUNDANT LIGHTNING FOR THE WALLOWA DISTRICT.
- A HEAT ADVISORY IS IN EFFECT UNTIL 8 AM TODAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL FURTHER NOTICE FOR ALL OF LANE COUNTY.
- AN AIR QUALITY ALERT IS IN EFFECT UNTIL 11 AM MONDAY FOR DOUGLAS, KLAMATH, AND LAKE COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL FURTHER NOTICE FOR WILDFIRE SMOKE FOR DESCHUTES AND GRANT COUNTIES.
HEALTH ADVISORIES:
- 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:
- Mostly cloudy with sun breaks and a bit cooler today, mostly cloudy in the evening, partly cloudy late tonight,
- Sunny and a bit warmer Sunday, mostly clear at night,
- Sunny and a bit cooler Monday, mostly clear Monday night.
- highs 90-93 warming to 96 Sunday lows 58-53.
- Sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Sunny and a bit warmer Wednesday and Thursday, mostly clear Wednesday night,
- Then sunny Friday.
- highs 92-90 warming 94 Thursday lows 54-56. (seasonal averages high 86 low 52)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: LOW (3)
TREES: ABSENT (0)
WEEDS: LOW (3)
Last Measured 8.1.24
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy and hazy with a slight (20%) chance of thunderstorms today, partly cloudy with evening haze, mostly clear and hazy late tonight,
- Mostly sunny and a bit warmer Sunday, mostly clear at night,
- Mostly sunny and a bit cooler Monday, then mostly clear Monday night.
- highs 95-97 lows near 62.
- Mostly sunny Tuesday, mostly clear Tuesday night,
- Mostly sunny and a bit warmer Wednesday, mostly clear at night,
- Mostly sunny and a bit warmer Thursday,mostly clear Thursday night,
- Then mostly sunny Friday.
- highs 93-95 lows near 60 (seasonal averages high 87 low 58)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy and hazy with patchy AM fog, mostly cloudy and hazy this afternoon, partly cloudy with patchy evening fog, mostly cloudy with patchy fog late tonight,
- Mostly cloudy with patchy AM fog, sunny Sunday afternoon, mostly clear with patchy evening fog, mostly cloudy with patchy fog late at night,
- Mostly cloudy with areas of AM fog, sunny Monday afternoon, partly cloudy in the evening, then partly cloudy late Monday night.
- highs 68-72 lows near 55.
- Partly cloudy Tuesday, partly cloudy Tuesday night,
- Partly cloudy and a bit warmer Wednesday, partly cloudy at night,
- Partly cloudy Thursday and in the evening, mostly cloudy late Thursday night,
- AM clouds, then sunny Friday afternoon.
- highs near 74 lows near 55. (seasonal average high 67 low 54)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy and hazy with a slight (20%) chance of thunderstorms and a bit cooler with a slight (20%) chance of thunderstorms this afternoon with areas of smoke, mostly cloudy tonight,
- Sunny and a bit warmer with a slight (20%) chance of thunderstorms Sunday afternoon, mostly clear at night,
- Sunny and a bit cooler Monday, then mostly clear Monday night.
- free air freezing level 16,000 ft. falling to 15,000 ft. this afternoon, then 15,000 ft. tonight through Monday night.
- highs near 85-82 warming to 83 Sunday lows 55-52.
- Sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Sunny and a bit warmer Wednesday, mostly clear in the evening, partly cloudy late at night,
- Sunny Thursday, mostly clear Thursday night,
- Then sunny Friday.
- free air freezing level 15,000 ft. Tuesday, 16,000 ft. Tuesday night through Thursday Wednesday night, then 15,000 ft. Thursday through Friday.
- highs 82-78 warming to 82 Thursday lows 52-49 warming back to 52 Wednesday night.
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