An Upper Level High Pressure Ridge off the coast brings lots of heat and some wildfire smoke due to offshore airflow (west to east). The graphics for days 1-3 show no frontal systems pushing through Oregon. The graphics for days 3-7 Friday through Tuesday show a cold frontal system pushing through the Pacific Northwest through the period until a front moves through Sunday and Monday.
ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT FROM 2 PM UNTIL 8 PM TODAY FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE WESTERN KLAMATH NATIONAL FOREST, THE WESTERN ROGUE BASIN INCLUDING THE ILLINOIS VALLEY, AND THE EASTERN ROGUE VALLEY.
- A FIRE WEATHER WATCH IS IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY EVENING FOR FOR WIND AND RELATIVE HUMIDITY FOR THE LOWER COLUMBIA BASIN OF OREGON.
- A FIRE WEATHER WATCH IS IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE WARM SPRINGS RESERVATION.
- A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM TONIGHT FOR THE LOWER COLUMBIA COLUMBIA RIVER, TUALATIN VALLEY, PORTLAND WEST HILLS AND CHEHALEM MOUNTAIN, INNER PORTLAND METRO, EAST PORTLAND METRO, SOUTHEAST PORTLAND METRO, WEST CENTRAL WILLAMETTE VALLEY, BENTON COUNTY LOWLANDS, AND THE LANE COUNTY LOWLANDS.
- A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM TODAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY AND LAKE COUNTY, AND CENTRAL AND EASTERN LAKE COUNTY.
- A HEAT ADVISORY IS IN EFFECT FROM 2 PM MDT UNTIL 9 PM MDT SATURDAY FOR BAKER COUNTY, HARNEY COUNTY, AND MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 11 AM TODAY FOR BENTON, CLACKAMAS, COLUMBIA, HOOD RIVER, LANE, LINN, MARION, MULTNOMAH, POLK, WASHINGTON, AND YAMHILL COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL FURTHER NOTICE FOR CROOK, DESCHUTES, GILLIAM, GRANT, JEFFERSON, MORROW, SHERMAN, UMATILLA, UNION, WALLOWA, WASCO COUNTIES, AND WHEELER COUNTIES.
- AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 PM TONIGHT 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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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Sunny and slightly warmer (Hot) with areas of smoke today, patchy evening smoke, mostly clear late tonight,
- Sunny and a bit cooler (Still Very Warm) Friday, clear at night,
- Sunny and a bit cooler (Still Warm) Saturday, then clear Saturday night.
- highs 94-92 lows 58-59 cooling to 57 Saturday night.
- Sunny and a bit cooler Sunday, mostly clear Sunday night,
- Sunny Monday, clear at night,
- Sunny and slightly cooler Tuesday, mostly clear Tuesday night,
- Then sunny and a bit cooler Wednesday.
- highs 92-85 warming to lows 56-55. (seasonal averages high 86 low 52)
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EUGENE-SPRINGFIELD POLLEN COUNT:`
GRASS POLLEN: ABSENT (0)
TREE POLLEN: ABSENT (0)
WEEDS: ABSENT (0)
Measured 8.5.26
NOTE: DATA FROM OREGON ALLERGY ASSOCIATES.
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Forecast for the Umpqua Valley including Roseburg:
- Widespread AM smoke, sunny and a bit cooler, still Hot this afternoon, clear with patchy evening smoke, clear with widespread haze late tonight,
- Sunny and a bit warmer, Hot, Friday, then clear Friday night,
- Sunny and a bit cooler (still very warm) Saturday, then clear Saturday night,
- highs 99-101 cooling back to 99 Thursday lows 60-62 cooling to 59 Saturday night.
- Sunny and a bit cooler Sunday and Monday, clear both nights,
- Sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Then sunny and a bit cooler Wednesday.
- highs 96-86 lows 62-56. (seasonal averages high 87 low 58).
- Sunny and a bit cooler with patchy AM and early afternoon smoke, partly cloudy late this afternoon, becoming mostly cloudy late tonight,
- Mostly sunny and a bit cooler Thursday, mostly cloudy Thursday night,
- Mostly sunny and a bit warmer Friday, partly cloudy at night,
- Sunny and a bit warmer Saturday, then partly cloudy Saturday night.
- highs 63-67 lows 55-53.
- Sunny and a bit cooler Sunday and Monday, partly cloudy both nights,
- Mostly sunny and a bit warmer Tuesday, partly cloudy Tuesday night,
- Then mostly sunny and a bit cooler Wednesday.
- highs 68-65 lows 55-54 . (seasonal averages high 67 low 54).
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Areas of AM smoke, sunny with patchy smoke this afternoon, mostly clear with patchy smoke tonight,
- Then sunny and a bit cooler Friday and Saturday, mostly clear both nights,
- free air freezing level above 16,000 ft. today and tonight 16,000 ft. Friday through Saturday night,
- highs 86-80 lows 56-49.
- Sunny and a bit cooler Sunday and Monday, mostly clear both nights,
- Then sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Then sunny and a bit cooler Wednesday.
- free air freezing level 16,000 ft. Sunday through Monday night, then 15,000 ft. Tuesday through Wednesday.
- highs 76-73 lows 47-46.