Here is my new weekly weather quiz question. What is the “Thermocline “?
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Upper Level High Pressure takes over as the Jet Stream has moved to the south away from us bringing drying and plenty of sunshine, but cold overnight temperatures, through the weekend. The graphics for days 1-3 show no frontal systems. The graphics for days 3-7 Sunday through Thursday show no serious frontal activity over the Pacific Northwest through the period, but a complex frontal system will be to our Northwest next Thursday.
Note: Ski Report: Willamette Pass Ski announced it will be open again Friday November 29th for early season skiing, Hoodoo is not open yet, Mt. Ashland is not open yet. Check their Web sites for any new updates.
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ADVISORIES:
- A FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 9 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST.
- A FREEZE WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING FOR THE SOUTH CENTRAL OREGON COAST.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 PM MONDAY FOR THE PORTLAND WEST HILLS AND CHEHALEM MOUNTAIN, INNER PORTLAND METRO, EAST PORTLAND METRO, AND OUTER SOUTHEAST PORTLAND METRO.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 PM TUESDAY FOR THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE LOWER COLUMBIA RIVER, THE TUALATIN VALLEY, THE WEST CENTRAL WILLAMETTE VALLEY, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, THE THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, AND THE LANE COUNTY CASCADE FOOTHILLS.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 PM TUESDAY FOR THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, AND THE LANE COUNTY LOWLANDS.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 PM TUESDAY FOR THE WEST CENTRAL WILLAMETTE VALLEY AND THE EAST CENTRAL WILLAMETTE VALLEY.
- A DENSE FOG ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE WEST CENTRAL WILLAMETTE VALLEY AND THE EAST CENTRAL WILLAMETTE VALLEY.
- A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY AFTERNOON 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:
- Patchy dense AM fog, a mix of clouds and sun today (Thanksgiving Day), partly cloudy with patchy dense fog and frost late tonight,
- Patchy dense AM fog and frost, mostly sunny and a bit warmer Friday, partly cloudy with patchy dense fog and frost at night,
- Patchy dense AM fog, mostly sunny Saturday, partly cloudy Saturday night.
- highs 43-44 lows near 28.
- Mostly sunny and a bit warmer Sunday and Monday, partly cloudy both nights,
- Mostly sunny and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
- Then a mix of clouds and sun and a bit warmer with a (40%) chance of showers Wednesday.
- highs 46-53 lows 30-35. (seasonal averages high 50 low 36)
Your College Football Weather Forecast:
Saturday November 30th:
Ducks vs Washington Huskies at Autzen Stadium, – Game time: 4:30 pm- Weather forecast: Mostly sunny then mostly clear, 44 degrees and falling throughout the game.
Friday November 29th:
Beavers vs Boise State Broncos at Maverik Stadium, Boise, Idaho: Game time 9:00 am- Weather forecast: Partly cloudy 32 degrees rising to 42 by the end of the game.
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: YELLOW – Caution is advised, be prepared to stop burning wood if the advisory changes to Red.
Oakridge and Westfir: YELLOW – Caution is advised, be prepared to stop burning wood if the advisory changes to Red.
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:
- Widespread AM frost and patchy dense fog, partly cloudy and a bit warmer this afternoon (Thanksgiving Day), mostly clear with widespread frost tonight,
- Widespread AM frost, sunny and a bit cooler Friday afternoon, mostly clear with widespread frost at night,
- Widespread AM frost, mostly sunny and a bit warmer Saturday afternoon, mostly clear in the evening, then partly cloudy late Saturday night.
- highs 49-46 warming back to 49 Saturday lows 30-32.
- Partly cloudy and a bit warmer Sunday and Monday, partly cloudy both nights,
- Some AM clouds, sunny and a bit warmer Tuesday,
- Then partly cloudy and a bit warmer Wednesday.
- highs 52-57 lows 35-39. (seasonal averages high 50 low 39)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Areas of AM coastal frost while widespread AM inland frost, sunny and a bit warmer this afternoon, mostly clear with areas of coastal frost late tonight while areas of inland evening frost and widespread inland frost late tonight,
- Areas of AM coastal frost while widespread inland AM frost, sunny Friday afternoon, areas of evening frost and widespread frost late at night,
- Areas of AM frost, mostly sunny and a bit warmer Saturday, mostly clear in evening, then partly cloudy late Saturday night.
- highs 54-56 lows 32-34 Saturday night.
- Partly cloudy and a bit warmer Sunday, partly cloudy Sunday night,
- Partly cloudy and a bit warmer Monday, partly cloudy at night,
- AM sun, partly cloudy and a bit warmer with a slight (20%) chance of rain Tuesday afternoon,
- Partly cloudy with a slight (20%) chance of rain and a bit warmer Wednesday.
- highs 57-62 lows 36-42. (seasonal averages high 54 low 42)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and a bit warmer today (Thanksgiving Day), mostly clear tonight,
- Sunny and a bit warmer Friday, mostly clear at night,
- Mostly sunny and a bit warmer Saturday, then mostly clear Saturday night.
- free air freezing level 6,000 ft. rising to 8,000 ft. this afternoon, 7,000 ft. falling to 6,000 ft. late tonight, 6,000 ft. rising to 8,000 ft. Friday afternoon, 8,000 ft. rising to 9,000 ft. late Friday night, then 11,000 ft. Saturday and Saturday night.
- highs 39-44 lows 18-24.
- Mostly sunny Sunday, partly cloudy Sunday night,
- Mostly sunny Monday, mostly clear in the evening, partly cloudy late at night,
- Sunny and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
- Then a mix of clouds and sun with a (40%) chance of showers and a bit warmer Wednesday.
- free air freezing level 11,000 ft. Sunday, 10,000 ft. Sunday night, 10,000 ft. Monday and Monday night, 11,000 ft. Tuesday, then snow level 7,500 ft. Tuesday night and Wednesday.
- highs 44-47 lows 26-30.