Jan
13.
An Upper Level High Pressure Ridge (“Arch” shape) is moving in to bring us dry sunshiny days and chilly nights for the Pacific Northwest. The graphics for days 1-3 show no frontal systems through the period. The graphics for days 3-7 Friday through Tuesday show the no frontal activity through the period until a stationary front snakes along the entire West Coast Saturday through Monday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 59 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 104 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 54 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 10 AM THURSDAY 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 10 AM THURSDAY 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.
- A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT THROUGH TUESDAY EVENING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
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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:
- Widespread AM frost with patchy fog, mostly sunny and a bit warmer this afternoon, partly cloudy with patchy fog and areas of evening frost, patchy fog with widespread frost tonight,
- Widespread AM frost with patchy fog, mostly sunny, a bit warmer, Wednesday afternoon, mostly clear with patchy evening frost, patchy fog with areas of frost late at night,
- Patchy AM fog, a mix of clouds and sun and a bit warmer Thursday, mostly cloudy in the evening, then partly cloudy with widespread frost late Thursday night.
- highs 44-45 lows near 32. .
- Mostly sunny and a bit cooler with a slight (20%) chance of showers and widespread frost Friday, mostly clear with widespread frost and patchy fog Friday night,
- Mostly sunny with and a bit cooler with widespread frost Saturday, mostly clear with widespread frost at night,
- Sunny and a bit cooler with widespread frost Sunday, mostly clear with widespread frost Sunday night,
- Then mostly sunny with widespread frost Monday (Martin Luther King, Jr.Day).
- highs 45-40 warming to 42 Monday lows 28-25 (seasonal averages high 48 low 35)
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: GREEN – The burning of wood is allowed.
Oakridge: GREEN – The burning of 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:
- Partly cloudy with areas of AM fog, sunny and a bit cooler this afternoon, partly cloudy with patchy evening fog, mostly cloudy widespread fog late tonight,
- Areas of AM fog, sunny and a bit warmer Wednesday afternoon, clear with patchy evening fog, partly cloudy with patchy fog late at night,
- Patchy AM fog, partly cloudy and a bit warmer Thursday, partly cloudy with patchy evening fog, then mostly cloudy with areas of fog late Thursday night.
- highs 44-52 lows 36-39 cooling back to 36 Thursday night.
- Partly cloudy with patchy AM fog, sunny and a bit cooler Friday afternoon, mostly clear Friday night,
- Some AM clouds, sunny and a bit cooler Saturday afternoon, mostly clear at night,
- Mostly sunny Sunday, mostly clear Sunday night,
- Then partly cloudy and a bit warmer Monday (Martin Luther King, Jr.Day).
- highs 47-45 warming back to 47 Monday lows 36-28. (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 areas of AM coastal fog and frost and becoming sunny and a bit cooler this afternoon while areas of inland AM frost and sunny inland and a bit cooler this afternoon, mostly clear with patchy coastal fog and patchy coastal frost late tonight while mostly clear with patchy inland evening fog, and inland areas of frost late Tuesday night,
- Patchy AM coastal fog and frost while inland areas of AM frost and patchy fog, sunny and a bit warmer Wednesday afternoon, mostly clear in the evening, partly cloudy patchy fog late at night,
- Areas of AM fog, partly cloudy and a bit cooler Thursday afternoon, then partly cloudy with areas of frost late Thursday night.
- highs 54-56 cooling to 52 Thursday lows 37-38 cooling to 34 Thursday night.
- Areas of AM frost, sunny and a bit cooler Friday afternoon, mostly clear Friday night,
- Mostly sunny and a bit warmer Saturday, mostly clear at night,
- Mostly sunny Sunday, mostly clear Sunday night,
- Then mostly sunny and a bit warmer Monday (Martin Luther King, Jr.Day).
- highs 50-54 lows 29-32 (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, mostly clear tonight,
- Sunny and a bit warmer Wednesday, clear at night,
- Sunny and a bit warmer Thursday, mostly cloudy with a slight (20%) chance of rain and snow showers, then mostly cloudy with a slight (20%) chance of rain and snow showers Thursday night.
- free air freezing level 10,000 ft. today and tonight, 11,000 ft. Wednesday and Wednesday night, 9,000 ft. Thursday, then snow level 4,000 ft. Thursday night.
- low 20-18 rising to 23 Friday highs 45-46 cooling to 43 Thursday.
- Mostly sunny and warmer with a slight (20%) chance of snow showers Friday, mostly clear with widespread frost and a slight (20%) chance of snow showers Friday night,
- Sunny a bit cooler Saturday, mostly clear at night,
- Sunny and a bit cooler Sunday, mostly clear Sunday night,
- Then sunny and a bit warmer Monday Monday (Martin Luther King, Jr.Day).
- snow level 2,000 ft. Friday and Friday night, free air freezing level at the surface Saturday, 3,500 ft. Saturday night, 4,500 ft. Sunday, 3,500 ft. Sunday night, then 6,000 ft. Monday.
- highs 32-30 warming to warming to 36 Monday lows 15-16.