Here is my new weekly weather quiz question. What is a “Stationary Front?”
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A strong Upper Level Low Pressure Trough continues onshore airflow, but shower chances hold off for a while. The graphics for days 1-3 show the cold frontal system approaching the coast Tuesday. The graphics for days 3-7 Thursday through Monday show no fronts sliding through the Pacific Northwest Wednesday through the period.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 33 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 9 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:
- Sunny and a bit warmer today, mostly clear tonight,
- Mostly cloudy with a good (50%) chance of AM rain, rain and cooler Tuesday afternoon, rain at night,
- Mostly cloudy with a good (50%) chance of AM showers, partly cloudy and a bit warmer with a good (50%) chance of showers Wednesday afternoon, then just partly cloudy Wednesday night.
- highs 79-65 warming to 72 Wednesday lows 50-53 cooling to 50 Wednesday night.
- Mostly sunny and a bit warmer Thursday, mostly clear in the evening, partly cloudy late Thursday night,
- Mostly sunny Friday, mostly at night,
- A mix of clouds and sun with a (30%) chance of showers Saturday, partly cloudy with a slight (20%) chance of showers Saturday night,
- Then mostly sunny Sunday.
- highs near 74 lows near 47. (seasonal averages high 78 low 48)
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Your Saturday College Football Weather Forecast:
Saturday September 14th:
Ducks vs Beavers at Reser Stadium, Corvallis Game time 12:30 pm- Final score: The Ducks clobbered the Beavers 49-14.
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Forecast for the Umpqua Valley including Roseburg:
- Some AM clouds, sunny and a bit warmer this afternoon, mostly clear this evening, partly cloudy late tonight,
- Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) and a bit cooler Tuesday afternoon (0.10 in. of rain possible), showers with patchy fog late at night (0.50 in. of rain possible),
- Mostly cloudy with a (40%) chance of showers and a bit warmer Wednesday, then partly cloudy with patchy fog late Wednesday night.
- highs 74-64 warming to 72 Wednesday lows 52-55 cooling to cooling to 53 Wednesday night.
- Partly cloudy with patchy fog and a bit warmer Thursday, mostly clear with patchy fog Thursday night,
- Some AM clouds, sunny Friday afternoon, partly cloudy with a slight (20%) chance of showers late at night.
- Partly cloudy with a slight (20%) chance of showers Saturday and Saturday night,
- Then partly cloudy Sunday.
- highs near 75 lows near 52. (seasonal averages high 80 low 52)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Some AM clouds, sunny and a bit warmer this afternoon, partly cloudy this evening, mostly cloudy tonight,
- Cloudy with a good (50%) chance of AM showers, showers Tuesday afternoon (0.10 in. of rain possible), showers at night (0.25 in. of rain possible),
- Mostly cloudy with a (40%) chance of showers and a bit warmer Wednesday afternoon, then partly cloudy Wednesday night.
- highs 69-72 lows 55-53.
- Mostly cloudy with patchy AM fog, sunny and a bit cooler Thursday afternoon, partly cloudy Thursday night,
- Partly cloudy and a bit warmer Friday, partly cloudy with a slight (20%) chance of showers late at night,
- Partly cloudy with a slight (20%) chance of showers Saturday and in the evening, just partly cloudy late Saturday night,
- Then partly cloudy Sunday.
- highs near 72 lows near 52. (seasonal average high 67 low 51)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny with a slight (20%) chance of showers and a bit warmer this afternoon, partly cloudy tonight,
- Increasing clouds with a slight (20%) chance of AM rain, a bit cooler with rain likely (70%) Tuesday afternoon, rain at night,
- Mostly cloudy with a good (50%) chance of AM showers, a mix of clouds and sun and a bit warmer with a good (50%) chance of showers Wednesday afternoon, mostly cloudy a slight (20%) chance of evening showers, then partly cloudy with a slight (20%) chance of showers late Wednesday night.
- snow level above 8,000 ft. today through Tuesday night, 8,000 ft. Wednesday, then above 8,000 ft. Wednesday night.
- highs 57-49 warming to 53 Wednesday lows 38-40 cooling back to 38 Tuesday night.
- Mostly sunny and a bit warmer Thursday, partly cloudy Thursday night,
- Mostly sunny Friday, partly cloudy with a slight (20%) chance of showers at night,
- Mostly sunny and a bit cooler with a (30%) chance of showers Saturday, partly cloudy with a slight (20%) chance showers Saturday night,
- Mostly sunny and a bit warmer Sunday.
- snow level free air freezing level 13,000 ft. Thursday, 14,000 ft. Thursday night and Friday, snow level above 8,000 ft. Friday night through Saturday night, then free air freezing level 12,000 ft. Sunday.
- highs 62-59 warming to 62 Sunday lows near 39.