Sep
01.
Here is my weekly weather quiz question for the last time. What is the “Solar Wind?” Here is the correct answer. Solar Wind is the outward flux of solar particles and magnetic fields from the sun. Typically, solar wind velocities are near 350 km/s.
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An Upper Level High Pressure Ridge continues the warming. The graphics for days 1-3 show no frontal systems sliding through Oregon through the period until a cold front slides in between tonight and Monday morning. The graphics for days 3-7 Wednesday through Sunday show no frontal systems pushing into the Pacific Northwest through the period.
Note: We’re having really nice weather for the Labor Day Holiday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 35 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 46 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 27 in the Good 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 8 PM MONDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE KLAMATH BASIN, THE FREMONT-WINEMA NATIONAL FOREST, AND THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
- A RED FLAG WARNING IS IN EFFECT FROM 9 AM MDT MONDAY UNTIL MIDNIGHT MDT MONDAY NIGHT FOR LIGHTNING FOR THE BURNS BLM AND THE VALE BLM.
- A RED FLAG WARNING IS IN EFFECT FROM 9 AM MDT MONDAY UNTIL 8 PM MDT MONDAY FOR LIGHTNING, WINDS AND LOW RELATIVE HUMIDITY FOR THE BURNS BLM AND THE VALE BLM.
- A RED FLAG WARNING IS IN EFFECT FROM 9 AM MDT MONDAY UNTIL MIDNIGHT MDT MONDAY FOR LIGHTNING FOR THE BAKER VALLEY.
- A RED FLAG WARNING IS IN EFFECT FROM 9 AM MDT MONDAY UNTIL 9 PM MDT MONDAY FOR LIGHTNING FOR THE BAKER VALLEY.
- A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM TONIGHT FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE GRANDE RONDE VALLEY, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
- A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM TONIGHT FOR THE SOUTHERN BLUE MOUNTAINS OF OREGON.
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 clear this evening, partly cloudy late tonight,
- Mostly sunny and cooler Monday (Labor Day), partly cloudy Monday night,
- Sunny and a bit warmer Tuesday, clear at night,
- Sunny and warmer Wednesday, then mostly clear Wednesday night.
- lows 53-56 highs 74-95.
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Sunny and a bit cooler Friday, mostly clear Friday night,
- Then sunny and a bit cooler Saturday and Sunday, mostly clear Saturday night.
- highs 97-89 lows near 56. (seasonal averages high 82 low 50)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: LOW (2)
TREES: LOW (2)
WEEDS: LOW (2)
Last Measured 8.31.24
Data courtesy of Oregon Allergy Associates.
The local pollen season is over.
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Your Saturday College Football Weather Forecast:
Saturday August 31st:
Ducks vs Idaho Vandals at Autzen Stadium, Game time 4:30 pm- Ducks won 24-14.
Beavers vs Idaho State Bengals at Reser Stadium, Game time: 3:30 pm-Beavers won 38-15.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear this evening, partly cloudy tonight with a slight (20%) chance of thunderstorms late,
- Some AM clouds with a slight (20%) chance of thunderstorms, mostly sunny and cooler Monday with a slight (20%) chance of afternoon thunderstorms (Labor Day), mostly clear in the evening, partly cloudy with patchy fog late Monday night,
- Some AM clouds, sunny and warmer Tuesday afternoon, clear at night,
- Sunny and warmer Wednesday, then mostly clear Wednesday night.
- lows 56-62 highs 79-97.
- Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
- Mostly sunny and a bit cooler Friday, mostly clear Friday night,
- Then mostly sunny and a bit cooler Saturday and Sunday, mostly clear Sunday night.
- highs 99-90 lows 62-59. (seasonal averages high 84 low 55)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy at the coast this evening and mostly cloudy with a slight (20%) chance of coastal thunderstorms late tonight while partly cloudy inland this evening and mostly cloudy with a slight (20%) chance of inland thunderstorms late tonight,
- Mostly cloudy with a slight (20%) chance of AM coastal thunderstorms, partly cloudy and a bit warmer Monday afternoon (Labor Day), mostly cloudy Monday night,
- Some AM clouds, sunny and a bit warmer Tuesday afternoon, mostly clear at night,
- Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
- lows 54-56 highs 66-75.
- Partly cloudy and a bit cooler Thursday and Friday, partly cloudy both nights,
- Partly cloudy Saturday and Saturday night,
- Then partly cloudy and a bit cooler Sunday.
- highs 79-74 lows 56-54. (seasonal average high 67 low 53)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear tonight,
- Sunny and cooler Monday (Labor Day) with a slight (20%) chance of afternoon showers, partly cloudy Monday night,
- Sunny and a bit warmer Tuesday, mostly clear at night,
- Sunny and warmer Wednesday, then mostly clear Wednesday night.
- free air freezing level 14,000 ft. tonight, snow level above 8,000 ft. Monday, free air freezing level 12,000 ft. rising to 13,000 ft. Monday night, 13,000 ft. rising to 14,000 ft. Tuesday afternoon, then 16,000 ft. Tuesday night through Wednesday night.
- lows 48-42 warming to 52 Wednesday night highs 69-82.
- Sunny and a bit warmer Thursday, mostly clear in the evening, partly cloudy late Thursday night,
- Sunny and a bit cooler Friday, partly cloudy Friday night,
- Then sunny and a bit cooler Saturday and Sunday, partly cloudy Sunday night.
- free air freezing level 15,000 ft. Thursday through Saturday night, then 14,000 ft. Sunday.
- highs 84-77 lows 54-52.