Aug
03.
An Upper Level High Pressure Ridge just offshore brings lots of heat. The graphics for days 1-3 show a cold frontal system pushing through Oregon Saturday. The graphics for days 3-7 Wednesday through Sunday show no major activity over the Pacific Northwest through the period.
ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT UNTIL 8 PM TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR THE SOUTHERN WILLAMETTE VALLEY.
- A RED FLAG WARNING IS IN EFFECT FROM 2 PM TODAY UNTIL 9 PM TUESDAY FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE WESTERN ROGUE BASIN INCLUDING THE THE ILLINOIS VALLEY, THE SISKIYOU MOUNTAINS, THE EASTERN ROGUE VALLEY, AND THE SOUTHERN OREGON CASCADES.
- A RED FLAG WARNING IS IN EFFECT FR0M 2 PM UNTIL 9 PM WEDNESDAY FOR THE UMPQUA BASIN, AND THE UMPQUA NATIONAL FOREST.
- A FIRE WEATHER WATCH IS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE LOWER COLUMBIA RIVER BASIN OF OREGON, THE EASTERN COLUMBIA RIVER GORGE OF OREGON, AND THE EAST SLOPES OF THE MT. HOOD NATIONAL FOREST.
- A RED FLAG WARNING IS IN EFFECT FROM 11 AM TUESDAY UNTIL 8PM WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE WESTERN COLUMBIA RIVER GORGE OF OREGON.
- A HEAT ADVISORY IS IN EFFECT FROM NOON TUESDAY UNTIL 11 PM WEDNESDAY FOR THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS,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 FROM 11 AM TUESDAY UNTIL 11 PM WEDNESDAY FOR CENTRAL DOUGLAS COUNTY.
- A HEAT ADVISORY IS IN EFFECT FROM 11 AM TUESDAY UNTIL 11 PM THURSDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR BAKER COUNTY, HARNEY COUNTY, AND MALHEUR COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON WEDNESDAY FOR CLACKAMAS COUNTY AND MULTNOMAH COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 4 PM WEDNESDAY FOR KLAMATH AND LAKE COUNTIES.
- AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR COOK, GRANT, JEFFERSON, UMATILLA, UNION, WALLOWA, AND WASCO 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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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 21 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 23 in the Good 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:
- Clear with areas of smoke tonight,
- Sunny and warmer (Hot) with areas of smoke Tuesday, mostly clear with areas of smoke Tuesday night,
- Sunny and a bit warmer (Hot) Wednesday, clear at night,
- Sunny and slightly cooler (Still Hot) Thursday, then clear Thursday night.
- lows 56-59 highs 96-98 cooling to 97 Thursday.
- Sunny and a bit cooler (Still Very Warm) Friday, clear Friday night,
- Sunny and a bit cooler Saturday and Sunday, clear both nights,
- Then sunny and a bit cooler Monday.
- highs 93-83 lows 58-54. (seasonal averages high 86 low 53)
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EUGENE-SPRINGFIELD POLLEN COUNT:`
GRASS POLLEN: ABSENT (0)
TREE POLLEN: ABSENT (0)
WEEDS: LOW (0)
Measured 7.30.26
NOTE: DATA FROM OREGON ALLERGY ASSOCIATES.
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Forecast for the Umpqua Valley including Roseburg:
- Clear with widespread smoke late tonight,
- Widespread AM smoke, sunny and Hot Tuesday, mostly clear with widespread smoke late Tuesday night,
- Sunny and Hot Wednesday, clear Wednesday night,
- Mostly sunny and Hot Thursday, then clear Thursday night.
- lows 59-64 cooling to 62 Thursday night highs 99-101 cooling back to 99 Thursday.
- Sunny and a bit cooler, still Hot, Friday, clear Friday night,
- Sunny and a bit cooler (still warm) Saturday, clear at night,
- Sunny and a bit cooler Sunday, clear Sunday night,
- Then sunny Monday.
- highs 96-86 lows 62-56. (seasonal averages high 87 low 58).
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Forecast for the South Oregon Coast Including Coos Bay and North Bend:
- Clear with patchy smoke tonight,
- Sunny with morning and early afternoon widespread smoke, just sunny and a bit warmer late afternoon Tuesday, mostly clear with areas of smoke Tuesday night,
- Sunny and a bit cooler Wednesday, partly cloudy at night,
- Mostly sunny and a bit cooler Thursday, then partly cloudy Thursday night.
- lows near 55 highs 72-67.
- Mostly sunny and a bit warmer Friday, mostly clear Friday night,
- Mostly sunny and a bit cooler Saturday, partly cloudy at night,
- Mostly sunny and a bit cooler Sunday, partly cloudy Sunday night,
- Then mostly sunny Monday.
- 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:
- Clear with areas of smoke tonight,
- Sunny and a bit warmer with areas of smoke Tuesday, partly cloudy with areas of smoke Tuesday night,
- Sunny and a bit cooler Wednesday, mostly clear at night,
- Sunny Thursday, then mostly clear Thursday night.
- free air freezing level 16,000 ft. tonight and Tuesday, then above 16,000 ft. Tuesday night through Thursday night.
- lows 47-56 cooling to 55 Thursday night highs 84-87.
- Sunny and a bit cooler Friday, mostly clear Friday night,
- Sunny and a bit cooler Saturday, mostly clear at night,
- Sunny and a bit cooler Sunday, mostly clear Sunday night,
- Then sunny Monday.
- free air freezing level 16,000 ft. Friday, above 16,000 ft. Friday night, 16,000 ft. Saturday through Sunday, then 15,000 ft. Sunday night and Monday.
- highs 83-73 lows 52-45.
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