An Upper Level Low Pressure Trough (“U” shape) offshore will be cooling us off by spreading weak cold fronts our way. The graphics for days 1-3 show a cold front pushing through Oregon Thursday into Friday. The graphics for days 3-7 Friday through Monday show the frontal system pushing out of the Pacific Northwest Friday. Another front will be sliding through next Monday.
ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT FROM 11 AM UNTIL 8 PM TODAY FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST, AND THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
- A FIRE WEATHER WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST, AND THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
- A FIRE WEATHER WATCH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE BURNS BLM, STEENS MOUNTAIN, AND THE SOUTHERN GRASSLANDS.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR UMATILLA COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR BAKER 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:
- AM clouds and patchy fog, sunny, a bit warmer this afternoon, partly cloudy late tonight,
- Morning clouds, sunny and a bit cooler Thursday, mostly clear Thursday night,
- AM clouds and sun, sunny and a bit warmer Friday, clear at night,
- highs 84-80 warming to 82 Friday lows 55-52.
- Sunny and a bit cooler Saturday, mostly clear Saturday night,
- Mostly sunny and a bit warmer Sunday, mostly clear at night,
- Then mostly sunny and a bit cooler Monday, partly cloudy Monday night,
- Then mostly sunny and a bit cooler with a slight (20%) chance of rain Tuesday.
- highs 79-80 cooling to 75 Tuesday lows near 54. (seasonal averages high 83 low 51)
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EUGENE-SPRINGFIELD POLLEN COUNT:`
GRASS POLLEN: ABSENT (0)
TREE POLLEN: ABSENT (0)
WEEDS: LOW
Measured 8.18.26
NOTE: DATA FROM OREGON ALLERGY ASSOCIATES.
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Forecast for the Umpqua Valley including Roseburg:
- AM clouds, sunny and a bit cooler this afternoon, mostly clear tonight,
- AM clouds and sun, sunny and a bit cooler Thursday afternoon, mostly clear Thursday night,
- Mostly sunny Friday, mostly clear Friday night.
- highs 86-81 lows 57-54.
- 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, partly cloudy Monday night,
- Then a mix of clouds and sun and a bit cooler with a slight (20%) chance of rain Tuesday.
- highs 79-82 cooling to 78 Tuesday lows 52-53, (seasonal averages high 85 low 56).
- Areas of AM fog, mix of clouds and sun and a bit warmer this afternoon, mostly cloudy tonight,
- AM clouds, sunny and a bit cooler Thursday, mostly cloudy at night,
- Mostly sunny Friday, then partly cloudy Friday night.
- highs 62-64 cooling to 63 Thursday lows 57-54.
- Mostly sunny and a bit warmer Saturday, partly cloudy Saturday night,
- Mostly sunny Sunday, partly cloudy at night,
- A mix of clouds and sun and a bit cooler Monday, mostly cloudy Monday night,
- Then a mix of clouds and sun with a slight (2o%) chance of rain Tuesday.
- highs 65-64 warming back to 65 Tuesday lows 52-53 cooling back to 52 Monday night. (seasonal averages high 68 low 53).
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and a bit cooler today, mostly cloudy this evening, partly cloudy late tonight,
- Mostly sunny and a bit cooler Thursday, mostly clear Thursday night,
- Sunny and a bit warmer Friday, then mostly clear Friday night.
- free air freezing level 14,000 ft. today through Friday, then 13,000 ft. Friday night.
- highs 75-70 warming to 72 Friday lows 45-42.
- Sunny and a bit cooler Saturday, mostly clear Saturday night,
- Sunny and a bit warmer Sunday, then mostly clear Sunday night,
- Sunny and a bit cooler Monday, mostly clear in the evening, partly cloudy at night,
- Then mostly sunny and a bit cooler with a slight (20%) chance of rain Tuesday.
- free air freezing level 13,000 ft. Saturday, 14,000 ft. Saturday night, 13,000 ft. Sunday, 14,000 ft. Sunday night, 13,000 ft. Monday, 12,000 ft. Monday night, then snow level above 8,000 ft. Tuesday.
- highs 67-72 Sunday cooling to 65 Tuesday lows 42-44 cooling to 40 Tuesday night.