Jul
21.
A strong area of Upper Level High Pressure (“O” shape) over the Great Basin will be overshadowed by surface low pressure off the California-Oregon coasts. The graphics for days 1-3 show no frontal systems over the Pacific Northwest. The graphics for days 3-7 Friday through Tuesday show no frontal systems over the Pacific Northwest through the period until a cold front pushes through next Tuesday
ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT FROM 11 AM UNTIL 11 PM WEDNESDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR THE UMPQUA NATIONAL FOREST, THE EASTERN ROGUE VALLEY, THE SOUTHERN OREGON CASCADES, THEN THE KLAMATH BASIN, THE FREMONT-WINEMA NATIONAL FOREST, AND THE SOUTHERN DESCHUTES NATIONAL FORECAST.
- A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM WEDNESDAY FOR ABUNDANT LIGHTNING FOR THE SOUTHERN BLUE MOUNTAINS AND THE CENTRAL MOUNTAINS OF OREGON.
- A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM WEDNESDAY FOR THE LOWER COLUMBIA RIVER, TUALATIN VALLEY, INNER PORTLAND METRO, EAST PORTLAND METRO, THE CENTRAL WILLAMETTE VALLEY, THE WEST COLUMBIA RIVER GORGE OF OREGON ABOVE 500 FT, WEST COLUMBIA RIVER GORGE I-84 CORRIDOR, THE UPPER HOOD RIVER VALLEY, AND THE CENTRAL COLUMBIA RIVER GORGE I-84 CORRIDOR.
- A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM TONIGHT FOR THE LINN COUNTY LOWLANDS AND THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES.
- A HEAT ADVISORY IS IN EFFECT FROM THIS AFTERNOON THROUGH 9 PM THURSDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, AND THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
- AN AIR QUALITY ADVISORY IS IN EFFECT DUE TO WILDFIRE SMOKE UNTIL 6 PM WEDNESDAY FOR CLACKAMAS, MARION, AND MULTNOMAH COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 4 PM WEDNESDAY DUE TO WILDFIRE SMOKE FOR CROOK, DESCHUTES, JEFFERSON, UMATILLA, UNION, WILLOWA, AND WHEELER COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON WEDNESDAY FOR BAKER COUNTY, HARNEY COUNTY, AND MALHER COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 2 PM WEDNESDAY FOR JACKSON COUNTY.
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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SKI REPORT:
Willamette Pass Ski: IT’S NOT OFFICIAL, BUT DUE TO THE LATENESS OF THE SEASON AND THE MILD WEATHER TREND THERE IS VIRTUALLY NO CHANCE OF GETTING ENOUGH SNOWFALL TO ALLOW OPENING FOR SKIING. CONSIDER IT CLOSED FOR THE SEASON.
Hoodoo Ski: IS CLOSED FOR THE SEASON.
Mt. Ashland Ski: IS CLOSED FOR THE SEASON.
Be sure to check their web pages for the latest updates.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 55 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 48 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 53 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy with patchy evening smoke, just partly cloudy late tonight,
- Mostly sunny and quite warm with a (30%) chance of showers and thunderstorms Wednesday afternoon, partly cloudy with a (30%) chance of evening showers and thunderstorms, just partly cloudy late Wednesday night,
- Mostly sunny and a bit cooler Thursday, mostly clear at night,
- Sunny Friday, then mostly clear Friday night.
- lows 65-53 highs 93-86.
- Mostly sunny and a bit cooler Saturday, mostly clear Saturday night,
- Mostly sunny and a bit warmer Sunday, mostly clear at night,
- Mostly sunny and a bit cooler Monday, mostly clear Monday night,
- Then mostly sunny Tuesday.
- highs 93-87 lows 59-55. (seasonal averages high 86 low 52)
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EUGENE-SPRINGFIELD POLLEN COUNT:`
GRASS POLLEN: MODERATE (8)
TREE POLLEN: ABSENT (0)
WEEDS: ABSENT (0)
Measured 7.16.26
NOTE: DATA FROM OREGON ALLERGY ASSOCIATES.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear tonight,
- Sunny and Hot Wednesday, partly cloudy with a slight (20%) chance of evening showers and thunderstorms, just partly cloudy late Wednesday night,
- Sunny and a bit cooler Thursday, mostly clear at night,
- Sunny and a bit cooler Friday, clear Friday night,
- lows 70-55 highs 97-86. .
- Sunny and a bit cooler Saturday, clear Saturday night,
- Sunny and a bit warmer Sunday, mostly clear at night,
- Mostly sunny and a bit cooler Monday, mostly clear Monday night,
- Then sunny Tuesday.
- highs 84-85 cooling to 83 Monday and Tuesday lows near 55 (seasonal averages high 87 low 58).
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Forecast for the South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy with patchy fog late tonight,
- Patchy AM fog, mostly sunny and a bit warmer Wednesday afternoon, mostly cloudy with patchy fog late Wednesday night,
- Patchy AM fog, mostly cloudy and a bit cooler Thursday, mostly cloudy at night,
- A mix of clouds and sun and a bit warmer Friday then partly cloudy Friday night.
- lows 57-54 highs 62-60 warming to 63 Friday.
- A mix of clouds Saturday, partly cloudy Saturday night,
- A mix of clouds and sun Sunday, mostly cloudy at night,
- A mix of clouds and sun Monday, mostly cloudy Monday night,
- Then a mix of clouds and sun Tuesday.
- highs near 63 lows 55-54 warming back to 55 Monday night (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 patchy smoke tonight,
- AM sun, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon, mostly cloudy with a good (50%) chance of evening showers, clearing with a good (50%) chance of showers late Wednesday night,
- Sunny and a bit cooler Thursday, mostly clear at night,
- Sunny Friday, then mostly clear Friday night.
- free air freezing level 16,000 ft. falling to 15,000 ft. late tonight, 15,000 ft. Wednesday, snow level above 8,000 ft. Wednesday night, free air freezing level 16,000 ft. falling to 15,000 ft. Thursday night, then 15,000 ft. Friday and Friday night.
- lows 56-47 highs 82-77.
- Sunny and a bit cooler Saturday, mostly clear Saturday night,
- Sunny and a bit warmer Sunday, mostly clear at night,
- Sunny and a bit cooler Monday, clear Monday night,
- Then sunny and a bit cooler Tuesday.
- free air freezing level 14,000 ft. Saturday, 15,000 ft. through Sunday night, 14,000 ft. Monday, then 13,000 ft. Monday night and Tuesday.
- highs 69-73 cooling to 68 Tuesday lows 45-42.
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