Sep
09.
Here is my new weekly weather quiz question. What is a “Squall?”
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An Upper Level Low Pressure Trough gives us onshore flow for a while. The graphics for days 1-3 show a cold frontal system pushing through the Pacific Northwest Monday. The graphics for days 3-7 Thursday through Monday show no major frontal systems through the period.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 44 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 98 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 52 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- AN AIR QUALITY ADVISORY IS IN EFFECT THROUGH TUESDAY NIGHT FOR WILDFIRE SMOKE FOR EASTERN LANE COUNTY.
- AN AIR QUALITY ALERT IS IN EFFECT FOR WILDFIRE SMOKE UNTIL 5 PM WEDNESDAY FOR DOUGLAS, KLAMATH, AND LAKE COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT FOR WILDFIRE SMOKE FOR CROOK, DESCHUTES, GRANT, AND JEFFERSON COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT FOR WILDFIRE SMOKE UNTIL 22 AM WEDNESDAY FOR HARNEY COUNTY.
- A FIRE WEATHER WATCH IS IN EFFECT FOR LIGHTNING FOR THE BURNS BLM, THE VALE BLM, AND THE BAKER VALLEY.
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:
- Partly cloudy tonight,
- Mostly sunny and a bit cooler Tuesday, becoming mostly cloudy with showers Tuesday night (0.25 in. of rain possible),
- Mostly cloudy and cooler with showers and a slight (20%) chance of thunderstorms Wednesday (0.50 in. of rain possible), evening showers, a slight (20%) chance of showers late at night (under 0.10 in. of rain possible),
- A mix of clouds and sun and a bit warmer with a good (50%) chance of showers Thursday, partly cloudy in the evening, then mostly clear late Thursday night.
- lows 53-49 highs 82-69 warming to 73 Thursday.
- Mostly sunny and a bit warmer Friday, partly cloudy Friday night,
- A mix of clouds and sun Saturday, mostly cloudy at night,
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Sunday, mostly cloudy with a (40%) chance of showers Sunday night,
- Then a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Monday.
- highs 76-72 lows near 50. (seasonal averages high 80 low 49)
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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- Preliminary Weather forecast: Partly cloudy 65 degrees warming to 74 degrees by the end of the game.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear this evening, partly cloudy late tonight,
- Partly cloudy and a bit cooler Tuesday, partly cloudy with a (30%) chance of evening showers, mostly cloudy and cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms late Tuesday night (under 0.10 in. of rain possible),
- Mostly cloudy and cooler with showers and a slight (20%) chance of thunderstorms Wednesday and in the evening (0.50 in. of rain possible), a good (50%) chance of showers late at night (0.10 in. of rain possible),
- Mostly cloudy with a (40%) chance of AM showers, partly cloudy and a bit warmer with a (30%) chance of showers Thursday afternoon, then mostly clear Thursday night.
- lows 57-52 highs 84-69.
- Mostly sunny sunny and a bit warmer Friday, partly cloudy Friday night,
- Partly cloudy Saturday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late at night,
- Mostly cloudy and a bit cooler with a slight (20%) chance of showers Sunday, mostly cloudy in the evening, partly cloudy late Sunday night,
- Then mostly cloudy and a bit cooler Monday.
- highs 78-73 lows near 52. (seasonal averages high 82 low 54)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear this evening, becoming mostly cloudy with patchy fog beginning in the late evening continuing through late tonight,
- Mostly cloudy with patchy AM fog, partly cloudy and a bit cooler Tuesday afternoon, partly cloudy with a slight (20%) chance of evening coastal thunderstorms, with coastal showers likely (70%) and a slight (20%) chance of thunderstorms late at night while mostly cloudy inland showers likely (70%) and a slight (20%) chance of thunderstorms Tuesday night (0.10 in. of rain possible),
- Mostly cloudy with showers with a slight (20%) chance of thunderstorms Wednesday (0.25 in. of rain possible), evening showers likely (70%) with a slight (20%) chance of thunderstorms, a good (50%) chance of showers late at night (under 0.10 in. of rain possible),
- Mostly cloudy with (40%) chance of AM showers, partly cloudy with a (30%) chance of showers Thursday afternoon, mostly clear Thursday night.
- lows 54-56 cooling to 53 Thursday night highs near 65.
- Mostly sunny Friday afternoon, partly cloudy with Friday night,
- Partly cloudy with Saturday, mostly cloudy with a slight (20%) chance of showers at night,
- Mostly cloudy and a bit cooler with a slight (20%) chance of showers Sunday, mostly cloudy in the evening, partly cloudy late Sunday night,
- Then mostly cloudy and a bit cooler Monday.
- highs 65-62 lows 54-52. (seasonal average high 67 low 52)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy and hazy with areas of smoke tonight,
- AM haze with areas of smoke, mostly sunny and a bit cooler Tuesday, mostly cloudy with a good (50%) chance of evening showers, showers late Tuesday night,
- Mostly cloudy and cooler with showers and a slight (20%) chance of thunderstorms Wednesday afternoon, showers 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 Thursday afternoon, then just partly cloudy Thursday night.
- free air freezing level 14,000 ft. tonight, 13,000 ft. Tuesday, snow level above 8,000 ft. Tuesday night, 8,000 ft. Wednesday, 7,500 ft. Wednesday night, 8,000 ft. Thursday, then free air freezing level 12,000 ft. Thursday night.
- lows 47-38 highs 69-48 warming to 52 Thursday.
- Mostly sunny and warmer Friday, partly cloudy in the evening, mostly cloudy late Friday night,
- Mostly sunny and a bit cooler Saturday, mostly cloudy at night,
- Mostly cloudy with a (40%) chance of AM showers, partly cloudy and a bit cooler with a (40%) chance of showers Sunday afternoon, mostly cloudy with a (40%) chance of showers Sunday night,
- Then a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Monday.
- free air freezing level 13,000 ft. Friday and Friday night, 12,000 Saturday, 13,000 ft. Saturday night, snow level above 8,000 ft. Sunday and Sunday night, then 8,000 ft. Monday.
- highs 64-54 lows 42-38.