Here is my weekly weather quiz question. What is a “Stationary Front?”
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An Upper Level High Pressure Ridge (“Arch” shape) takes over replacing the Upper level Low Pressure Trough (“U” shape) that is moving southward away from us. The graphics for days 1-3 show a frontal system moving through Thursday. The graphics for days 3-7 Sunday through Thursday show no fronts sliding through the Pacific Northwest through the period until a cold front will be moving into Oregon next Wednesday and Thursday.
ADVISORIES:
- NONE AT THIS TIME.
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:
- Mostly clear tonight,
- Sunny and a bit cooler Friday, mostly clear Friday night,
- Sunny and a bit warmer Saturday, clear at night,
- Sunny and a bit warmer Sunday (Autumnal Equinox 5:44 AM), then partly cloudy Sunday night.
- lows 46-53 highs 74-79.
- Mostly sunny and a bit warmer Monday, partly cloudy in the evening, mostly clear late Monday night,
- Sunny and a bit warmer Tuesday, mostly clear at night,
- Mostly sunny and a bit cooler Wednesday, partly cloudy Wednesday night,
- Then mostly sunny and a bit cooler Thursday.
- highs 80-87 cooling to 78 Thursday lows 5s-55 cooling to 52 Wednesday night. (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- 73 degrees partly cloudy cooling to 64 by the end of the game.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear tonight,
- Sunny and a bit cooler Friday, clear Friday night,
- Sunny and a bit warmer Saturday, clear at night,
- Sunny Sunday, then partly cloudy Sunday nights
- Partly cloudy Sunday (Autumnal Equinox 5:44 AM), then partly cloudy Sunday night.
- lows 52-49 warming to 55 Sunday night highs 76-80.
- Partly cloudy and warmer Monday, mostly clear Monday nights
- Sunny and warmer Tuesday, mostly clear at night,
- Mostly sunny and a bit cooler Wednesday, partly cloudy Wednesday night,
- Some AM clouds, then sunny Thursday.
- highs 82-90 cooling to 80 Thursday lows 56-58 cooling back to 56 Wednesday night. (seasonal averages high 79 low 51)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Clear this evening, partly cloudy late tonight,
- Sunny and a bit cooler Friday, clear Friday night,
- Mostly sunny and a bit warmer Saturday, clear at night,
- Sunny and a bit warmer Sunday (Autumnal Equinox 5:44 AM), then partly cloudy Sunday night.
- lows 52-49 warming to 53 Sunday night highs 65-72.
- Partly cloudy and a bit warmer Monday, mostly clear Monday night,
- Sunny and warmer Tuesday, clear in the evening, partly cloudy late at night,
- Partly cloudy and a bit cooler Wednesday, partly cloudy Wednesday night,
- Then partly cloudy and a bit cooler Thursday.
- highs 73-75 cooling to 70 Thursday lows 52-56. (seasonal average high 66 low 51)
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Partly cloudy tonight,
- Sunny and a bit cooler Friday, mostly clear Friday night,
- Sunny and a bit warmer Saturday, mostly clear at night,
- Sunny Sunday (Autumnal Equinox 5:44 AM), then mostly cloudy Sunday night.
- free air freezing level 14,000 ft. tonight through Sunday night,
- lows 38-43 highs 62-66.
- Mostly sunny and a bit warmer Monday, partly cloudy Monday night,
- Sunny and warmer Tuesday, mostly clear at night,
- Sunny and a bit cooler Wednesday, partly cloudy Wednesday night,
- Then mostly sunny and a bit cooler Thursday.
- free air freezing level 16,000 ft. Monday, above 16,000 ft. Monday night through Wednesday, 15,000 ft. Wednesday night then 14,000 ft. Thursday.
- highs 67-76 cooling to 69 Thursday lows 47-50 cooling to 46 Wednesday night.