Here is my weekly weather quiz question. What is “Sublimation”?
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An Upper Level Low Pressure Trough (“U” shape) over the Eastern Pacific will keep temperatures down and enhance the rain chances. The graphics for days 1-3 show a cold frontal system that moved through Oregon today. The graphics for days 3-7 Friday through Tuesday show a complex frontal system sliding through Sunday night and next Monday.
Note: Lane County residents will have to wait until Friday, November 1, 2024, at the earliest for the opening of the fall outdoor burning season. The season is typically scheduled to start on October 1st each year. However, the decision to delay has been jointly made by the Lane County Fire Defense Board and the Oregon Department of Forestry (ODF).
ADVISORIES:
- A WINTER WEATHER WATCH IS IN EFFECT FROM 4 AM UNTIL 6 PM THURSDAY ABOVE 4,000 FT. FOR THE CASCADES OF LINN AND MARION COUNTIES, AND THE CASCADES OF LANE COUNTY.
- A FREEZE WATCH IS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY MORNING FOR THE JOHN DAY BASIN.
- A FREEZE WATCH IS IN EFFECT FROM FROM LATE THURSDAY NIGHT THROUGH FRIDAY MORNING FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
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 slight (20%) chance of evening showers, showers with patchy fog and a slight (20%) chance of thunderstorms late tonight (0.10 in. of rain possible, more in storms),
- Mostly cloudy with patchy AM fog and showers with a slight (20%) chance of thunderstorms, a bit cooler with a slight (20%) chance of thunderstorms Thursday afternoon and evening, partly cloudy with patchy fog late Thursday night,
- Patchy AM fog and frost, mostly sunny and a bit warmer Friday afternoon, partly cloudy at night,
- Mostly sunny and a bit warmer Saturday, then partly cloudy Saturday night.
- lows 44-38 warming to 46 Saturday night highs 62-72.
- Mostly cloudy and a bit cooler with rain likely (70%) Sunday, rain with patchy fog Sunday night,
- Mostly cloudy with patchy AM fog, partly cloudy and a bit cooler with rain likely (70%) Monday afternoon, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with patchy fog and a slight (20%) chance of rain at night,
- Patchy AM fog, a mix of clouds and sun with a slight (20%) chance of rain Tuesday afternoon, partly cloudy with patchy fog late Tuesday night,
- Patchy AM fog, then mostly sunny Wednesday.
- highs 68-62 lows 46-38. (seasonal averages high 64 low 41)
Your Saturday College Football Weather Forecast:
Friday October 18th:
Ducks vs Perdue Boilermakers at Ross-ADE Stadium, West Lafayette, Indiana: Game time: 5:00 pm- Weather Forecast: Clear 66 degrees and cooling throughout the game.
Saturday October 19th:
Beavers vs UNLV Rebels at Reser Stadium: Game time 7:00 pm- Weather Forecast: Partly cloudy 62 degrees and cooling throughout the game.
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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:
- Mostly cloudy with a (40%) chance of early evening showers, a good (50%) chance of late evening showers, showers likely (70%) with a slight (20%) chance of thunderstorms late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with patchy dense AM fog and a good (50%) chance of showers and a slight (20%) chance of thunderstorms, partly cloudy with showers and a slight (20%) chance of thunderstorms cooler Thursday afternoon, (under 0.10 in. of rain possible) mostly clear with patchy fog late Thursday night,
- Some AM clouds with patchy fog, sunny and a bit warmer Friday afternoon, mostly cloudy at night,
- Some AM clouds, sunny and a bit warmer Saturday, then partly cloudy with patchy fog and a slight (20%) chance of rain late Saturday night.
- lows 47-39 warming to 48 Saturday night highs 59-74.
- Mostly cloudy with a good (50%) chance of rain and a bit cooler Sunday, evening rain, rain likely (70%) Sunday night,
- Mostly cloudy a good (50%) chance of rain and a bit cooler Monday, evening rain with patchy fog, mostly cloudy with a slight (20%) chance of rain late at night,
- Patchy AM fog, mostly cloudy with a slight (20%) chance of rain Tuesday afternoon and evening, just partly cloudy late Tuesday night,
- Some AM clouds with patchy fog, then sunny and a bit warmer Wednesday afternoon.
- highs 72-64 warming to 67 Wednesday lows 50-43. (seasonal averages high 67 low 45)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with patchy evening inland fog, a good (50%) chance of late evening showers with showers likely (70%) and a slight (20%) chance of thunderstorms late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with a (30%) of AM showers and a slight (20%) chance of thunderstorms, sunny and a bit cooler at the shore Thursday afternoon while partly cloudy inland with a slight (20%) chance of showers Thursday afternoon (0.10 in. of rain possible), mostly clear with patchy fog late Thursday night,
- Some AM clouds with patchy fog, sunny and a bit warmer Friday afternoon, partly cloudy at night with patchy fog late at night,
- Partly cloudy and a bit warmer Saturday, then partly cloudy with patchy fog and a slight (20%) chance of rain Saturday night.
- lows 47-40 warming to 49 Saturday night highs 59-67.
- Mostly cloudy with patchy AM fog and a good (50%) chance of rain, rain likely (70%) a bit cooler Sunday afternoon, rain likely (70%) with patchy fog late Sunday night,
- Mostly cloudy with patchy AM fog, a good (50%) chance of rain and a bit cooler Monday afternoon, mostly cloudy with patchy fog and a slight (20%) chance of evening rain, patchy fog late at night,
- Mostly cloudy with patchy AM fog, partly cloudy and a bit warmer with a slight (20%) chance of rain Tuesday afternoon, a slight (20%) chance of rain Tuesday night,
- Some AM clouds with patchy fog, then sunny Wednesday afternoon.
- highs 64-59 warming to 63 Wednesday lows 52-44. (seasonal average high 63 low 47).
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with a good (50% ) chance of evening showers, rain and snow showers late tonight (0.25 in. of rain possible, 1 in. of snow possible),
- Mostly cloudy with AM rain and snow showers (snow possibly heavy at times), cooler with a good (50%) chance of rain and snow showers Thursday afternoon (0.25 in. of rain possible, 1-3 in. of snow possible), mostly cloudy with patchy evening fog and a good (50%) chance of rain and snow showers, just partly cloudy late Thursday night,
- Sunny and warmer Friday, partly cloudy at night,
- Mostly sunny and warmer Saturday, then partly cloudy Saturday night.
- snow level 6,000 ft. falling to 4,500 ft. late tonight, 4,500 ft. Thursday, 4,000 ft. Thursday night, free air freezing level 6,000 ft. rising to 9,000 ft. Friday afternoon, 11,000 ft. rising to 12,000 ft. Friday night, then 13,000 ft. Saturday and Saturday night.
- lows 29-22 warming to 38 Saturday night highs 35-62.
- A mix of clouds and sun and a bit cooler with a (50%) chance of rain Sunday, rain Sunday night,
- Mostly cloudy and a bit cooler with rain likely (70%) Monday, mostly cloudy with a (40%) chance of rain at night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain and snow Tuesday, partly cloudy with a slight (20%) chance of rain and snow Tuesday night,
- Then sunny and a bit warmer Wednesday.
- snow level above 8,000 ft. Sunday, 8,000 ft. Sunday night, 6,000 ft. Monday, 5,500 ft. Monday night and Tuesday, 6,000 ft. Tuesday night, then free air freezing level 11,000 ft. Wednesday.
- highs 56-47 warming to 53 Wednesday lows 36-32.