Here is my weekly weather quiz question for the last time. What is a “Stationary Front?” Here is the correct answer. A Stationary Front is a front between warm and cold air masses that is moving very slowly or not at all.
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An Upper Level High Pressure Ridge (“Arch” shape) has taken over control of our weather. The graphics for days 1-3 show no frontal systems moving through Oregon. The graphics for days 3-7 Tuesday through Saturday show no fronts sliding through the Pacific Northwest through the period until a cold front will be moving into Oregon next Thursday, then another front will push through between late Thursday and Friday.
ADVISORIES:
- A FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 9AM SUNDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE 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.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Clear tonight,
- Sunny and a bit warmer Sunday (Autumnal Equinox 5:43 AM), partly cloudy Sunday night,
- Mostly sunny and a bit warmer Monday, mostly clear at night,
- Sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- lows 49-55 highs 82-89.
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Wednesday, mostly cloudy with a (30%) chance of showers Wednesday night,
- Mostly sunny Thursday, mostly cloudy with a (40%) chance of rain Thursday night,
- Mostly sunny and a bit cooler with a (30%) chance of rain Friday, partly cloudy Friday night,
- Then mostly sunny Saturday.
- highs 76-72 lows 52-45. (seasonal averages high 77 low 47)
Your Saturday College Football Weather Forecast:
Saturday September 21st:
Ducks have a Bye week-Next game Saturday September 28th:
Ducks vs UCLA at the Rose Bowl Stadium: Time to be announced- Way too soon for a preliminary weather forecast.
Saturday September 21st:
Beavers vs Perdue at Reser Stadium, Corvallis: Game time 5:30 pm- 76 degrees partly cloudy cooling to 64 by the end of the game.
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Forecast for the Umpqua Valley including Roseburg:,
- Clear tonight,
- Sunny and a bit warmer Sunday (Autumnal Equinox 5:43 AM), partly cloudy Sunday night,
- Partly cloudy start, sunny and a bit warmer Monday, mostly clear at night,
- Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- lows 52-58 highs 83-93.
- Partly cloudy and cooler with a slight (20%) chance of rain Wednesday, mostly cloudy with a slight (20%) chance of evening rain, just mostly cloudy late Wednesday night,
- Some AM clouds, sunny and a bit cooler Thursday afternoon, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a (30%) chance of rain late at night,
- Mostly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit cooler Friday afternoon, partly cloudy Friday night,
- Then partly cloudy and a bit warmer Saturday.
- highs 80-72 warming to 75 Saturday lows 55-49. (seasonal averages high 79 low 51)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear with patchy fog late tonight,
- AM sun with patchy AM coastal fog while areas of AM inland fog, sunny and a bit warmer Sunday (Autumnal Equinox 5:43 AM), partly cloudy in the evening, mostly cloudy with patchy fog Sunday night,
- Some AM clouds with patchy coastal fog while areas of AM inland fog, sunny and a bit warmer Monday afternoon, partly cloudy in the evening, mostly clear late Monday night,
- Patchy AM fog, sunny and a bit cooler Tuesday, partly cloudy in the evening, then mostly cloudy late Tuesday night.
- lows 53-57 cooling to 56 Tuesday highs 70-75 cooling to 68 Tuesday.
- Partly cloudy with a slight (20%) chance of rain and a bit cooler Wednesday, mostly cloudy with a slight (20%) chance of rain Wednesday night,
- AM clouds, sunny and a bit warmer Thursday afternoon, mostly cloudy with a (40%) chance of rain at night,
- Mostly cloudy with a slight (20%) chance of AM rain, just partly cloudy and a bit cooler Friday afternoon, partly cloudy Friday night,
- Then partly cloudy Saturday.
- highs 65-66 cooling to 64 Friday and Saturday lows 53-50. (seasonal average high 66 low 51)
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear tonight,
- Sunny and a bit warmer Sunday (Autumnal Equinox 5:43 AM), partly cloudy Sunday night,
- Mostly sunny and a bit warmer Monday, mostly clear at night,
- Sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- free air freezing level 13,000 ft. rising to 14,000 ft. late tonight, 14,000 ft. Sunday, 14,000 ft. rising to 15,000 ft. Sunday night, 15,000 ft. rising to 16,000 ft. Monday afternoon, 16,000 ft. rising to above 16,000 ft. Monday night, 16,000 ft. Tuesday, then 15,000 ft. late Tuesday night.
- lows 42-50 highs 68-79.
- Sunny and a bit cooler Wednesday, mostly cloudy with a slight (20%) chance of showers Wednesday night,
- Mostly sunny and a bit cooler Thursday, partly cloudy with a (40%) chance of evening showers, mostly cloudy with a (40%) chance of showers late at night,
- Mostly sunny and a bit cooler with slight (20%) chance of rain Friday, partly cloudy Friday night,
- Then mostly sunny and a bit warmer Saturday.
- free air freezing level 13,000 ft. Wednesday, snow level above 8,000 ft. Wednesday night, free air freezing level 13,000 ft. Thursday, snow level above 8,000 ft. Thursday night and Friday, then free air freezing level 12,000 ft. Friday night and Saturday.
- highs 68-57 warming to 62 Saturday lows 44-37.