Jan
15.
An Upper Level High Pressure Ridge (“Arch” shape) is sitting right over the Pacific Northwest keeping us dry with fog and chilly nights for the Pacific Northwest. The graphics for days 1-3 show a weak frontal system moving through through Thursday. The graphics for days 3-7 Sunday through Thursday show the no frontal activity through the period but a stationary front snakes along the entire West Coast Sunday through Thursday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 69 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 73 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 51 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A DENSE FOG ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE LANE COUNTY CASCADE FOOTHILLS.
- A DENSE FOG ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, AND THE LANE COUNTY LOWLANDS.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, AND THE LANE COUNTY LOWLANDS.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 12 NOON FRIDAY FOR THE SOUTH CENTRAL OREGON COAST CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE KLAMATH BASIN, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE 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 cloudy with areas of AM fog, mostly sunny with patchy fog this afternoon, mostly clear this evening, partly cloudy with patchy fog late tonight,
- Patchy AM fog, mostly sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy with patchy fog late at night,
- Mostly sunny with patchy dense fog and a bit cooler Saturday, mostly clear with patchy evening fog, partly cloudy with patchy fog late Saturday night.
- highs 42-44 cooling back to 42 Saturday lows 32-26. .
- Sunny and a bit cooler with patchy fog Sunday, mostly clear Sunday night,
- Mostly sunny Monday (Martin Luther King, Jr.Day), partly cloudy at night,
- Mostly sunny and a bit warmer Tuesday, partly cloudy Tuesday night,
- Then mostly sunny Wednesday.
- highs 42-44 lows 24-26 (seasonal averages high 48 low 35)
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: YELLOW – Caution, the burning of wood in wood stoves and fireplaces is allowed, but don’t use if it’s not necessary.
Oakridge And Westfir: GREEN – The burning of wood in wood stoves and fireplaces 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:
- Areas of AM fog, partly cloudy and a bit warmer this afternoon, mostly cloudy with patchy fog late tonight,
- Some AM clouds with patchy fog, sunny and a bit cooler Friday afternoon, mostly clear with patchy evening fog, widespread fog late at night,
- Some AM clouds with areas of fog, sunny and a bit warmer Saturday afternoon, then mostly clear Saturday night.
- highs 48-45 warming to 47 Saturday lows 35-29 warming to 32 Saturday night.
- Mostly sunny Sunday, clear Sunday night,
- Sunny and a bit warmer Monday (Martin Luther King, Jr.Day), partly cloudy at night,
- Partly cloudy Tuesday, mostly clear Tuesday night,
- Then partly cloudy and a bit warmer Wednesday.
- highs 46-49 lows 28-30. (seasonal averages high 50 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with areas of AM fog and patchy frost, mostly cloudy and a bit cooler this afternoon with patchy fog, mostly cloudy with patchy evening fog, patchy fog and areas of frost late tonight,
- Areas of AM coastal frost while areas of AM inland frost and patchy fog, sunny Friday afternoon, mostly clear with areas of evening coastal frost and patchy fog Friday night and widespread coastal frost late at night while inland patchy evening fog with areas of fog and widespread inland frost late at night,
- Widespread AM frost and patchy fog, sunny Saturday afternoon, then mostly clear Saturday night.
- highs near 52 lows 34-30 warming to 32 Saturday night.
- Mostly sunny Sunday, clear Sunday night,
- Sunny and a bit warmer Monday (Martin Luther King, Jr.Day), partly cloudy at night,
- Partly cloudy and a bit warmer Tuesday, partly cloudy Tuesday night,
- Then partly cloudy Wednesday.
- highs 52-54 lows 30-32. (seasonal averages high 54 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit warmer today, partly cloudy this evening, mostly cloudy with patchy dense fog late tonight,
- Sunny and cooler Friday, mostly clear at night,
- Sunny Saturday, then mostly clear Saturday night.
- free air freezing level 9,000 ft. today, 7,000 ft. falling to 3,000 ft. late tonight, 4,000 ft. Friday, 4,000 ft. falling to 3,500 ft. Friday night, 5,000 ft. Saturday and Saturday night.
- highs 45-33 low 22-16.
- Sunny and a bit cooler Sunday, mostly clear Sunday night,
- Sunny and a bit cooler Monday (Martin Luther King, Jr.Day), partly cloudy at night,
- Mostly sunny and a bit warmer Tuesday, partly cloudy Tuesday night,
- Then mostly sunny and a bit warmer Wednesday.
- snow level free air 5,500 ft. Sunday, at the surface Sunday night and Monday, 6,000 ft. Monday night, 7,000 ft. Tuesday, then 9,000 ft Tuesday night and Wednesday.
- highs 32-39 lows 17-14 warming to 19 Monday night.