Jan
08.
Here is my new weekly weather quiz question. What is an “Abutment?”
An Upper Level High Pressure Ridge (“Arch” shape) has taken over to bring sunshine and dry weather to the Pacific Northwest. The graphics for days 1-3 show cold front sliding through Friday The graphics for days 3-7 Saturday through Wednesday show the no rontal activity through the period.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 70 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 53 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON FRIDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 11 AM MST FRIDAY FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
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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 patchy evening fog, partly cloudy with patchy dense fog late tonight,
- Patchy AM dense fog, mostly sunny and a bit cooler Thursday afternoon, mostly cloudy with rain late Thursday night (under 0.10 in. of rain possible),
- Mostly cloudy with AM rain, showers and a bit warmer Friday afternoon, mostly cloudy with a good (50%) chance of evening showers, patchy fog late at night,
- AM clouds and sun with patchy fog and a slight (20%) chance of showers, mostly cloudy and a bit cooler with a slight (20% ) chance of showers
- Saturday afternoon, partly cloudy in the evening, mostly cloudy with patchy fog late Saturday night.
- lows 33-37 cooling to 35 Saturday night highs 46-50 cooling to 47 Saturday. .
- A mix of clouds and sun and a bit cooler Sunday, partly cloudy Sunday night.
- A mix of clouds and sun and a bit cooler Monday, mostly clear in the evening, partly cloudy late Monday night,
- Mostly sunny and a bit warmer Tuesday, mostly clear in the evening, partly cloudy late at night,
- Then sunny Wednesday.
- highs 47-45 warming back to 47 Wedesday lows 34-32. (seasonal averages high 47 low 35)
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: YELLOW – Caution is advised. If the advisory increases to RED Wood burning would be prohibited.
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 clear with patchy dense evening fog, partly cloudy with patchy fog late tonight,
- Partly cloudy with patchy dense AM fog, sunny and slightly cooler Thursday afternoon, partly cloudy in the evening, mostly cloudy with patchy fog and rain late Thursday night,
- Mostly cloudy with rain and a bit warmer Friday, mostly cloudy with as (30%) chance of rain Friday night,
- Mostly cloudy with a slight (20%) chance of AM rain, just partly cloudy and a bit cooler Saturday afternoon, then partly cloudy Saturday night.
- lows 37-43 cooling to 35 Saturday night highs 50-52 cooling to 48 Saturday.
- Mostly cloudy start, partly cloudy Sunday afternoon and Sunday night,
- Partly cloudy and a bit warmer Monday, mostly clear with patchy fog at night.
- Mostly sunny with patchy fog and a bit warmer Tuesday, mostly clear Tuesday night,
- Then mostly sunny and a bit warmer Wednesday.
- highs 47-52 lows near 33. (seasonal averages high 50 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy with patchy late evening fog, mostly cloudy with patchy fog late tonight,
- Mostly cloudy with patchy AM fog, sunny and a bit warmer Thursday afternoon, mostly cloudy with rain Thursday night,
- Mostly cloudy with AM coastal rain and coastal rain likely (70%) and a bit cooler Friday afternoon while mostly cloudy with inland rain a bit cooler Friday afternoon, partly cloudy with a slight (20%) chance of evening coastal rain and just mostly cloudy Friday night while mostly cloudy inland with a slight (20%) chance of inland rain at night,
- Partly cloudy and a bit cooler Saturday, then partly cloudy Saturday night.
- lows 38-42 cooling to 37 Saturday night highs 63-53.
- Partly cloudy and a bit cooler Sunday, mostly clear Sunday night,
- Mostly sunny and a bit warmer Monday, mostly clear with patchy fog Monday night,
- Mostly sunny with patchy fog and a bit warmer Tuesday, mostly clear Tuesday night,
- Then mostly sunny Wednesday.
- highs 52-57 lows 35-37 (seasonal averages high 53 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear tonight,
- Sunny and a bit cooler Thursday, partly cloudy in the evening, mostly cloudy with rain likely (70%) late Thursday night (under 0.10 in. of rain possible),
- Mostly cloudy with AM rain and snow, rain and snow showers and a bit cooler Friday afternoon, mostly cloudy with evening rain and snow showers Friday night,
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of snow showers Saturday afternoon, then mostly cloudy with a slight (20%) chance of snow showers Saturday night.
- free air freezing level 10,000 ft. late tonight, 11,000 ft. rising to 12,000 ft. Thursday afternoon, snow level above 8,000 ft. Thursday night, 6,000 ft. falling to 5,000 ft. Friday afternoon, 4,000 ft. falling to 3,000 ft. late Friday night, then 2,500 ft. Saturday and Saturday night.
- low 27-32 cooling to 22 Saturday night highs 42-30.
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of snow showers Sunday, mostly clear Sunday night,
- Sunny and a bit warmer Monday, mostly clear Monday night,
- snow level 2,500 ft. Sunday, free air freezing level 5.000 ft. Sunday night, 5,500 ft. Monday, 7,000 ft. Monday night, then 11,000 ft. Tuesday through Wednesday.
- highs 32-42 lows 19-25.