Here is my new weekly weather quiz question. What is a “Tornado Vortex Signature “?
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An Upper Level High Pressure Ridge (“Arch” shape) is moving toward the Pacific Northwest as the Upper Level Low Pressure leaves.The graphics for days 1-3 show a surface low and a cold frontal systems sliding southward along the California coast. The graphics for days 3-7 Friday through Tuesday show a complex frontal system will be pushing into the coast Saturday and Saturday night, then a frontal system will be marching through Monday and Monday night with a warm front just offshore next Tuesday.
Note: Ski Report: Willamette Pass, Hoodoo, and Mt. Ashland are all open for the ski season. Check their Web sites for specific mountain conditions and hours of operation.
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ADVISORIES:
- A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON WEDNESDAY FOR THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON AND NORTH CENTRAL OREGON.
- A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON WEDNESDAY FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM MST THURSDAY FOR THE OREGON LOWER TREASURE VALLEY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM MST THURSDAY FOR HARNEY COUNTY, BAKER COUNTY, AND MALHEUR COUNTY.
- A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT THROUGH WEDNESDAY MORNING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
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:
- Cloudy tonight,
- Mostly cloudy start, a mix of clouds and sun and a bit warmer with rain likely (70%) Wednesday afternoon, cloudy with rain Wednesday night (0.25 in. of rain possible),
- Mostly cloudy with a rain Thursday (under 0.10 in. of rain possible), rain likely (70%) at night (under 0.10 in. of rain possible),
- Mostly cloudy with rain Friday, then rain Friday night.
- lows 34-42 highs near 49.
- Mostly cloudy and a bit warmer with rain Saturday, rain Saturday night,
- Mostly cloudy and a bit cooler with rain likely (70%) Sunday, a good (50%) chance of rain at night,
- Mostly cloudy and a bit cooler with rain likely (70%) Monday, rain likely (70%) Monday night.
- Then mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday.
- highs 52-46 warming to 49 Tuesday lows 42-39. (seasonal averages high 47 low 34)
Your College Football Weather Forecast:
Big 10 Championship Game-Saturday December 7 th:
Ducks vs Penn State Nittany Lions at Lucas Oil Stadium, Indianapolis, Indiana- Game time: 5:00 pm PST- The Ducks beat the Penn State Nittany Lions 45-37 to win the Big 10 Championship trophy.
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: GREEN – The burning wood is allowed.
Oakridge and Westfir: GREEN – The burning wood is allowed.
The use of pellet stoves is always allowed.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with patchy late evening fog continuing overnight tonight,
- Mostly cloudy with patchy AM fog and a slight (20%) chance of rain, rain Wednesday afternoon, rain Wednesday night (0.25 in. of rain possible),
- Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain Thursday afternoon (0.10 in. of rain possible), a good (50%) chance of rain at night (under 0.10 in. of rain possible),
- Mostly cloudy with a good (50%) chance of AM rain, rain Friday afternoon, then rain Friday night.
- lows 36-42 highs 45-50.
- Mostly cloudy and a bit cooler with rain Saturday and in the evening, rain likely (70%) late Saturday night,
- Mostly cloudy with AM rain likely (70%), a bit cooler with a good (50%) chance of rain Sunday afternoon, a good (50%) chance of rain at night,
- Mostly cloudy with rain likely (70%) and a bit cooler Monday, rain likely (70%) Monday night,
- Then mostly cloudy with a (40%) chance of rain Tuesday.
- highs 49-47 warming to 50 Tuesday lows 40-38 warming back to 40 Monday night. (seasonal averages high 48 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with a slight (20%) and coastal rain late tonight,
- Partly cloudy and a bit warmer with a (30%) chance of coastal rain Wednesday while inland AM rain and inland rain Wednesday afternoon (under 0.10 in. of rain possible) rain Wednesday night (0.50 in. of rain possible),
- Mostly cloudy with AM rain likely (70%), a bit cooler with a good (50%) chance of rain Thursday afternoon (0.10 in. of rain possible), mostly cloudy with a (40%) chance of evening coastal rain and coastal rain likely (70%) late at night while a (40%) chance of inland rain Thursday night (under 0.10 in. of rain possible) ,
- Mostly cloudy with AM rain likely (70%), rain and a bit cooler Friday afternoon, then rain Friday night.
- lows 38-43 cooling to 42 Thursday night warming to 46 Friday night highs 59-53.
- Mostly cloudy and a bit cooler with rain and breezy Saturday, evening rain, rain likely (70%) and breezy late Saturday night,
- Mostly cloudy with rain likely (70%) Sunday and at night,
- Mostly cloudy with rain likely (70%) Monday and in the evening, a good (50%) chance of rain late Monday night,
- Then mostly cloudy and a bit warmer with a (40%) chance of rain Tuesday.
- highs 52-54 lows 44-42. (seasonal averages high 53 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County
- Mostly cloudy tonight,
- Mostly cloudy start, a mix of clouds and sun and a bit cooler with a (30%) chance of rain and snow Wednesday afternoon (under 0.10 in. of rain possible, little or no snow accumulation expected), rain and snow Wednesday night (under 0.10 in. of rain possible),
- Mostly cloudy with rain and snow and a bit cooler Thursday, rain likely (70%) and snow at night,
- Mostly cloudy with rain and snow Friday, then rain and snow Friday night.
- free air freezing level 10,000 ft. falling to 9,000 ft. late tonight, snow level 4,000 ft. Wednesday, 4,500 ft. Wednesday night, 4,000 ft. Thursday, 3,500 ft. Thursday night and Friday, then 5,000 ft Friday night.
- lows 27-25 warming to 29 Friday night highs 38-32.
- Mostly cloudy and a bit warmer with rain and snow Saturday, rain and snow Saturday night,
- Mostly cloudy and a bit cooler with rain and snow likely (70%) Sunday, rain and snow likely (70%) at night,
- Mostly cloudy and a bit warmer with rain and snow likely (70%) Monday, rain and snow likely (70%) Monday night,
- Then a mix of clouds and sun and a bit warmer with a good (50%) chance of rain and snow Tuesday.
- snow level 5,000 ft. Saturday, 4,000 ft. Saturday night, 3,500 ft. Sunday, 4,000 ft. Sunday night, then 4,500 ft. Monday, Tuesday and Wednesday.
- highs 34-32 warming to 35 Tuesday lows 29-25.