Sep
08.
Here is my weekly weather quiz question for the last time. What is the “Spring Tide?” Here is the correct answer. A Spring Tide is a tide higher than normal which occurs around the time of the new and full moon.
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An Upper Level High Pressure Ridge (“Arch” shape) is still heating us up to well above normal temperatures. The graphics for days 1-3 show a cold frontal system pushing through the Pacific Northwest Monday. The graphics for days 3-7 Wednesday through Sunday show no major frontal systems through the period.
he Pacific Northwest Wednesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 74 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 65 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 64 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR ABUNDANT LIGHTNING FOR THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS AND THE CENTRAL BLUE MOUNTAINS.
- A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR ABUNDANT LIGHTNING FOR THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE WALLOWA DISTRICT.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 9 AM MONDAY FOR HARNEY AND MALHEUR COUNTIES.
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:
- Mostly clear with evening haze, mostly clear late tonight,
- Patchy AM fog, mostly sunny and a bit cooler Monday, mostly cloudy in the evening, partly cloudy Monday night,
- Mostly sunny and a bit cooler Tuesday, becoming mostly cloudy with a slight (20%) chance of evening showers, a good (50%) chance of showers late at night (under 0.10 in. of rain possible),
- Mostly cloudy and cooler with showers and a slight (20%) chance of thunderstorms Wednesday, then mostly cloudy with showers likely (70%) and a slight (20%) chance of thunderstorms Wednesday night.
- lows 54-52 highs 85-68.
- A mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday, partly cloudy in the evening, mostly clear late Thursday night,
- Mostly sunny and a bit warmer Friday, partly cloudy at night,
- Mostly sunny Saturday, mostly cloudy with a slight (20%) chance of rain Saturday night,
- Then mostly sunny and a bit cooler with a (30%) chance of rain Sunday.
- highs 73-76 cooling back to 73 Sunday lows 48-50. (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 64 degrees warming to 72 degrees by the end of the game.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear with haze and patchy evening smoke, partly cloudy and hazy with patchy fog and smoke late tonight,
- Partly cloudy and hazy with patchy AM fog and smoke, partly cloudy and hazy with patchy smoke and a bit cooler Monday afternoon, evening haze and partly cloudy late Monday night,
- Some AM clouds with patchy fog, sunny and a bit cooler Tuesday afternoon, partly cloudy with a (40%) chance of evening showers, mostly cloudy and cooler with a (40%) chance of showers late at night (under 0.10 in. of rain possible),
- Mostly cloudy with AM showers likely (70%) and patchy fog, patchy fog and cooler with showers and a slight (20%) chance of thunderstorms Wednesday afternoon, mostly cloudy with evening showers likely (70%) a slight (20%) chance of thunderstorms, patchy fog with a good (50%) chance of showers late Wednesday night.
- lows 58-54 highs 88-68.
- Mostly cloudy patchy AM fog and a good (50%) chance of showers, partly cloudy and a bit warmer with a (30%) chance of showers Thursday afternoon, mostly clear with patchy fog Thursday night,
- Mostly sunny with patchy AM fog and a bit warmer Friday, partly cloudy with patchy fog at night,
- Patchy AM fog, partly cloudy with a slight (20%) chance of showers Saturday afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers Saturday night,
- Mostly cloudy with patchy AM fog, then partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday afternoon.
- highs 72-77 cooling to 75 Sunday lows 52-53. (seasonal averages high 82 low 54)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Becoming mostly cloudy with evening coastal haze and mostly cloudy and hazy with patchy fog late tonight,
- Mostly cloudy and hazy with patchy AM fog, just mostly cloudy and hazy and a bit cooler Monday afternoon, mostly cloudy with patchy inland fog late Monday night,
- Mostly cloudy with patchy AM and late night fog, partly cloudy and a bit cooler with a slight (20%) chance of coastal showers Tuesday afternoon, mostly cloudy with a slight (20%) chance of evening coastal showers with coastal showers likely (70%) late at night while mostly cloudy with a good (50%) chance inland showers at night (0.10 in. of rain possible),
- Mostly cloudy with AM showers and patchy fog, mostly cloudy and a bit cooler with showers and a slight (20%) chance of showers Wednesday afternoon, patchy fog with evening showers likely (70%) with a slight (20%) chance of thunderstorms, then patchy fog with a (40%) chance of showers late Wednesday night.
- lows 55-53 warming back to 55 Wednesday night highs 66-62.
- Mostly cloudy with AM fog and a slight (20%) chance of showers, partly cloudy and a bit warmer with patchy fog and a (30%) chance of showers Thursday afternoon, mostly clear in the evening, partly cloudy with patchy fog late Thursday night,
- Some AM clouds with patchy fog, partly cloudy and a bit warmer with patchy fog Friday afternoon, partly cloudy with patchy fog at night,
- Patchy AM fog, partly cloudy and a bit cooler with patchy fog Saturday afternoon, mostly cloudy with patchy fog and a slight (20%) chance of showers Saturday night,
- Patchy AM fog, partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday afternoon.
- highs 65-63 lows near 53. (seasonal average high 67 low 52)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear and hazy with areas of smoke late tonight,
- Mostly sunny and hazy with areas of smoke and a bit cooler Monday afternoon, mostly cloudy Monday night,
- Mostly sunny and a bit cooler Tuesday, mostly cloudy with a good (50%) chance of showers late at night,
- Mostly cloudy and cooler with showers and a slight (20%) chance of thunderstorms Wednesday, then mostly cloudy showers and a slight (20%) chance of thunderstorms Wednesday night.
- free air freezing level 14,000 ft. rising to 15,0o0 ft. tonight, 14,000 ft. Monday and Monday night, snow level above 8,000 ft. Tuesday and Tuesday night, then 7,500 ft. Wednesday and Wednesday night.
- lows 50-38 highs 75-48.
- Mostly cloudy with a (40%) chance of AM showers, partly cloudy and a bit warmer with a (40%) chance of showers Thursday afternoon, just partly cloudy Thursday night,
- Mostly sunny and cooler Friday, partly cloudy at night,
- Mostly sunny Saturday, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain late Saturday night,
- Then a mix of clouds and sun and a bit cooler with a (40%) chance of rain Sunday.
- snow level 8,000 ft. Thursday, free air freezing level 11,000 ft. Thursday night, 13,000 ft. Friday and Friday night, 12,000 Saturday, then snow level above 8,000 ft. Saturday night and Sunday.
- highs 52-62 cooling to 56 Sunday lows 37-40.