Here is my weekly weather quiz question for the last time. What is a “Theodolite “? Here is the correct answer. A Theodolite is an instrument used in surveying to measure horizontal and vertical angles with a small telescope that can move in the horizontal and vertical planes. It used to track the movements of either a ceiling balloon or a radiosonde.
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The Jet Stream has moved to the south a bit, but is still is sending moisture our way in the form of a series of frontal systems. The graphics for days 1-3 show continuing frontal activity through Oregon until Sunday. The graphics for days 3-7 Tuesday through Saturday show no serious frontal activity through the period.
Note: Ski Report: Willamette Pass Ski announced it is open as of last Thursday, Hoodoo is not open yet, Mt. Ashland planed opening day is December 14th.
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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.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with a good (50%) chance of showers tonight (under 0.10. in. of rain possible),
- Mostly cloudy with a good (50%) chance of AM showers, a bit warmer with showers Sunday afternoon (0.25 in. of rain possible), showers Sunday night (0.25 in. of rain possible),
- Mostly cloudy with showers Monday (0.25 in. of rain possible), evening showers, a good (50%) chance of showers at night (under 0.10 in. of rain possible),
- A mix of clouds and sun with a good (50%) chance of showers Tuesday, then partly cloudy with patchy fog Tuesday night.
- lows 38-40 cooling to 34 Tuesday night highs near 52.
- Mostly sunny and a bit cooler Wednesday, partly cloudy Wednesday night,
- Mostly sunny Thursday (Thanksgiving Day), partly cloudy at night,
- Mostly sunny Friday, partly cloudy Friday night,
- Then a mix of clouds and sun Saturday.
- highs 48-46 lows 32-29. (seasonal averages high 51 low 37)
Your College Football Weather Forecast:
Saturday November 23rd:
Ducks have a Bye week.
Saturday November 30th:
Ducks vs Washington Huskies at Autzen Stadium, – Game time: TBA- Too soon for a preliminary weather forecast.
Saturday November 23rd:
Beavers vs Washington State Cougars at Reser Stadium: Game time 4:00 pm- Weather forecast: Mostly cloudy 50 degrees, Chance of rain, cooling as the game progresses.
Friday November 29th:
Beavers vs Boise State Broncos at Maverik Stadium, Boise, Idaho: Game time 9:00 am- Weather forecast: Too soon for a preliminary weather forecast.
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: GREEN – Fireplace and wood stove use permitted.
Oakridge and Westfir: GREEN – Fireplace and wood stove use permitted.
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:
- Partly cloudy with a (30%) chance of early evening showers, mostly cloudy with a (30%) chance of showers at night with a slight (20%) chance of snow showers late tonight (under 0.10 in. of rain possible, snow level 3,000 ft. falling to 2,500 ft. late tonight),
- Mostly cloudy with a (40%) chance of AM showers (AM snow level 2,500 ft.), showers and a bit cooler Sunday afternoon (under 0.10 in. of rain possible), showers Sunday night (under 0.10 in. of rain possible, evening snow level 2,500 ft.),
- Mostly cloudy and a bit cooler with showers Monday and in the evening (0.25 in. of rain possible), showers likely (70%) late at night (0.10 in. of rain possible, snow level 3,500 ft. late at night),
- Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers Tuesday afternoon, partly cloudy with a slight (20%) chance of evening showers, then just partly cloudy late Tuesday night.
- lows 39-42 cooling to 36 Tuesday night highs 54-52.
- Partly cloudy and a bit cooler Wednesday, partly cloudy Wednesday night,
- Partly cloudy Thursday (Thanksgiving Day), partly cloudy at night,
- Partly cloudy Friday, partly cloudy Friday night,
- Then partly cloudy with a slight (20%) chance of showers Saturday afternoon.
- highs near 49 lows 34-33. (seasonal averages high 51 low 39)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with a (40%) chance of evening coastal showers land a slight (20%) chance of thunderstorms and late evening coastal showers continuing over night while a (40%) chance of inland showers tonight (under 0.10 in. of rain possible),
- Mostly cloudy with AM coastal showers likely (70%) while a good (50%) chance of inland AM showers, showers and a bit warmer Sunday afternoon (0.25 in. of rain possible), evening coastal showers with coastal showers and a slight (20%) chance of thunderstorms late at night while inland showers Sunday night (0.50 in. of rain possible, locally heavy rain possible late),
- Mostly cloudy with showers and a slight (20%) chance of thunderstorms Monday (0.25 in. of rain possible) and at night (under 0.10 in. of rain possible),
- Mostly cloudy with AM showers likely (70%) and a slight (20%) chance of thunderstorms, a slight (20%) chance of thunderstorms Tuesday afternoon, then partly cloudy with a slight (20%) chance of showers Tuesday night.
- lows 42-44 cooling back to 42 Tuesday night highs near 57.
- Partly cloudy with a slight (20%) chance of AM showers, sunny and a bit cooler Wednesday afternoon, mostly clear in the evening, partly cloudy late Wednesday night,
- Partly cloudy Thursday and at night,
- Partly cloudy Friday, partly cloudy with with slight (20%) chance of showers Friday night,
- Then partly cloudy with a slight (20%) chance of showers Saturday.
- highs near 56 lows near 35. (seasonal averages high 55 low 42)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Partly cloudy with a slight (20%) chance of evening now showers, mostly cloudy late tonight,
- A mix of clouds and sun with a slight (20%) chance of AM rain showers and a slight (20%) chance of snow showers, mostly cloudy and a bit warmer with rain and snow showers Sunday afternoon (0.10 in. of rain possible, 1 in. of snow possible), rain and snow showers Sunday night (0.10 in. of rain possible, 1 in. of snow possible),
- Mostly cloudy and a bit warmer with rain and snow showers Monday, rain and snow showers at night,
- Mostly cloudy and a bit cooler with snow showers with rain showers likely (70%) Tuesday, a (40%) chance of evening snow and rain showers, then partly cloudy with a (40%) chance of rain and snow showers late Tuesday night.
- snow level 2,500 ft. tonight, 2,500 ft. rising to 4,000 ft. Sunday, 4,000 ft. Sunday night through Monday night, then 3,500 ft. Tuesday and Tuesday night.
- lows 20-27 cooling to 25 Monday night highs 34-35 cooling to 33 Tuesday.
- Mostly sunny with a (40%) chance of snow with a slight (20%) chance of rain and a bit warmer Wednesday, partly cloudy Wednesday night,
- Mostly sunny and a bit warmer Thursday (Thanksgiving Day), partly cloudy with a slight (20%) chance of snow at night,
- Mostly sunny with a slight (20%) chance of rain and snow Friday, partly cloudy with a slight (20%) chance of rain and snow Friday night,
- Then mostly sunny and a bit warmer with a slight (20%) chance of rain and snow Saturday.
- snow level 3,000 ft. Wednesday, free air freezing level 4,500 ft. Wednesday night, 8,000 ft. Thursday, snow level 3,500 ft. Thursday night, 4,000 ft. Friday and Friday night, then 4,500 ft. Saturday.
- highs 34-39 lows 18-22.