Sep
16.
Here is my new weekly weather quiz question. What is a “Stationary Front?”
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A strong Upper Level Low Pressure Trough brings back rain chances. The graphics for days 1-3 show the cold frontal system approaching the coast Tuesday. The graphics for days 3-7 Friday through Tuesday show no fronts sliding through the Pacific Northwest through the period.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 41 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 36 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 30 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- A mix of clouds and sun with a slight (20%) chance of AM showers, mostly cloudy with showers and cooler this afternoon (under 0.10 in. of rain possible), showers tonight,
- Clouds and sun with a slight (20%) chance of AM showers, a mix of clouds and sun and a bit warmer Wednesday afternoon, mostly clear with patchy fog at night,
- Mostly sunny and a bit warmer Thursday, then mostly clear Thursday night.
- highs 65-74 lows 54-48.
- Mostly sunny Friday, mostly clear Friday night,
- Mostly sunny with a slight (20%) chance of rain Saturday, mostly cloudy with a (30%) chance of rain Saturday night,
- Mostly sunny and a bit warmer with a slight (20%) chance of rain Sunday (Autumnal Equinox 5:44 AM), partly cloudy with a slight (20%) chance of rain Sunday night,
- Then mostly sunny and a bit warmer Monday.
- highs 74-76 lows near 48. (seasonal averages high 78 low 48)
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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- 72 degrees partly cloudy cooling to 62 by the end of the game.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with patchy dense AM fog and a slight (20%) chance of AM showers, showers and slightly cooler this afternoon (0.10 in. of rain possible), showers with patchy fog late tonight (0.50 in. of rain possible),
- Mostly cloudy with patchy AM fog and a slight (20%) chance of showers, just partly cloudy and a bit warmer Wednesday, mostly clear with patchy fog late at night,
- Some AM clouds with patchy fog, sunny and a bit warmer Thursday afternoon, then mostly clear with patchy fog Thursday night.
- highs 69-77 lows 57-52.
- Patchy AM fog, mostly sunny and a bit cooler Friday afternoon, mostly clear Friday night.
- Partly cloudy and a bit warmer Saturday, partly cloudy with a slight (20%) chance of showers at night,
- Partly cloudy with a slight (20%) chance of showers Sunday (Autumnal Equinox 5:44 AM), partly cloudy with a slight (20%) chance of showers Sunday night,
- Then partly cloudy and a bit warmer Monday.
- highs 76-79 lows 50-53. (seasonal averages high 80 low 52)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy with a good (50%) chance of AM coastal showers and coastal showers with a slight (20%) chance of thunderstorms this afternoon and evening while cloudy with a slight (20%) chance of inland AM showers with inland showers this afternoon (0.10 in. of rain possible) and inland showers tonight (0.25 in. of rain possible),
- Mostly cloudy with patchy inland AM fog, a slight (20%) chance of AM showers, just partly cloudy and a bit warmer Wednesday afternoon, partly cloudy at night,
- Then partly cloudy a bit cooler Thursday, then partly cloudy Thursday night.
- highs 63-67 cooling to 64 Thursday lows 55-52.
- Mostly sunny and a bit cooler Friday, mostly clear Friday night,
- Some AM clouds, sunny with a slight (20%) chance of showers and a bit warmer Saturday afternoon, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late at night,
- Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy with a slight (20%) chance of showers Sunday afternoon (Autumnal Equinox 5:44 AM) and evening, just mostly cloudy late Sunday night,
- Mostly cloudy start, then partly cloudy Monday afternoon.
- highs 64-66 lows 50-55. (seasonal average high 67 low 51)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy a bit warmer with a good (50%) chance of showers this afternoon (under 0.10 in. of rain possible), showers tonight (0.25 in. of rain possible),
- Mostly cloudy with a (30%) chance of AM showers, mostly sunny and a bit warmer with a slight (20%) chance of showers Wednesday afternoon, just partly cloudy at night,
- Sunny and a bit warmer Thursday, mostly clear in the evening, partly cloudy late Thursday night.
- free air freezing level 12,000 ft. tonight, snow level above 8,000 ft. Tuesday through Wednesday, free air freezing level 13,000 ft. Thursday, then 14,000 ft. Thursday night.
- highs 49-62 lows 40-38 warming back to 40 Thursday night.
- Sunny Friday, partly cloudy Friday night,
- Mostly sunny and a bit cooler with a slight (20%) chance of showers Saturday, partly cloudy with a (30%) chance of evening rain, mostly cloudy with a (30%) chance showers at night,
- A mix of clouds and sun with slight (20%) chance of rain and a bit warmer Sunday (Autumnal Equinox 5:44 AM), mostly cloudy with slight (20%) chance of rain Sunday night,
- Then mostly sunny and a bit warmer Monday.
- free air freezing level 14, 000 ft. Friday, 13,000 ft. Friday night, snow level above 8,000 ft. Saturday through Sunday night, then free air freezing level 15,000 ft. Monday.
- highs 62-60 warming to 65 Monday lows near 39.