Check out my latest Eugene Daily News Weather Or Not column You Won’t Find This W.A.T.C.H. List At The Airport
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An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) has moved closer taking over from the High Pressure and enhancing the chance for precipitation. The graphics for days days 1-3 show the next frontal system moving toward Oregon today that will push through Tuesday. The graphics for days 3-7 show the complex frontal system move across the Pacific Northwest Friday bringing colder air and the threat of a dusting of snow above 1,000 ft.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 13 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 40 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 15 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Home Wood Heating Advisory:
(Posted Daily)
Eugene-Springfield: YELLOW – Caution Is Advised.
Oakridge: YELLOW – Caution Is Advised.
*Note: Pellet stoves may be used anytime if they produce no visible emissions.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM TUESDAY UNTIL 7 AM WEDNESDAY ABOVE 2,000 FT. FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON.
- A WINTER STORM WARNING IS IN EFFECT FROM 4 PM TUESDAY UNTIL 7 AM WEDNESDAY ABOVE 2,000 FT. FOR THE NORTHERN OREGON CASCADE FOOTHILLS AND THE CASCADES IN LANE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT FROM 6 AM TUESDAY UNTIL 6 AM WEDNESDAY FOR THE NORTH OREGON CASCADES.
- A WINTER STORM WARNING IS IN EFFECT FROM NOON TUESDAY UNTIL 6 AM WEDNESDAY FOR THE CASCADES IN LANE COUNTY.
- A HIGH WIND WARNING IS IN EFFECT FROM 7 AM UNTIL 4 PM TUESDAY FOR THE SOUTH CENTRAL OREGON COAST, AND THE CURRY COUNTY COAST.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 AM TUESDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 PM TUESDAY UNTIL 7 AM WEDNESDAY FOR CENTRAL DOUGLAS COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, WESTERN LAKE COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
- A WINTER STORM WARNING IS IN EFFECT FROM 1 PM TUESDAY UNTIL 7 AM WEDNESDAY FOR CENTRAL DOUGLAS COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, WESTERN LAKE COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
- A WIND ADVISORY IS IN EFFECT FROM 10 AM TUESDAY UNTIL 4 AM WEDNESDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson 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:
- Cloudy with a (40%) chance of rain late tonight (0.10 in. of rain possible),
- Mostly cloudy with rain (0.75 in. of rain possible) and a bit cooler Tuesday, breezy (Wind: SW 15-25 mph gusts to 35 mph), showers Tuesday night (0.25 in. of rain possible),
- Mostly cloudy and a bit cooler with a good (50%) chance of showers Wednesday, partly cloudy in the evening, mostly cloudy with patchy fog late Wednesday,
- Mostly cloudy with areas of AM freezing fog, partly cloudy and a bit cooler Thursday afternoon, a slight (20%) chance of showers at night.
- lows 42-25 highs 50-40.
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain and snow showers Friday (snow level 1,000 ft.), mostly cloudy in the evening, partly cloudy with patchy freezing fog late at night and Saturday AM, becoming mostly sunny and a bit cooler Saturday afternoon, partly cloudy in the evening, mostly cloudy with patchy freezing fog Saturday night,
- Partly cloudy Sunday AM, sunny and a bit warmer in the afternoon, clear in the evening, partly cloudy Sunday night,
- Then partly cloudy Monday AM (Christmas Day), then mostly sunny and a bit warmer in the afternoon.
- highs 42-35 lows 27-19. (seasonal averages high 45 low 33)
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Forecast for Roseburg:
- Mostly cloudy with a slight (20%) chance of rain late tonight,
- Cloudy with a good (50%) chance of AM rain, rain and a bit cooler Tuesday afternoon (0.50 in. of rain possible), evening rain and snow, rain and snow showers late Tuesday night (0.50 in. of rain possible),
- AM rain and snow showers likely (70%), a bit cooler with a good (50%) chance of rain and snow showers Wednesday, afternoon, mostly cloudy with a slight (20%) chance of evening rain and snow showers, just partly cloudy late at night,
- Areas of AM and late night freezing fog, partly cloudy and a bit warmer Thursday afternoon and at night.
- lows 40-28 warming to 30 Thursday night highs 49-39.
- Partly cloudy with freezing fog and a slight (20%) chance of showers Friday AM, mostly cloudy with a slight (20%) chance of snow showers and a bit cooler in the afternoon, mostly cloudy in the evening, partly cloudy late Friday night,
- Patchy AM and late night freezing fog, mostly sunny and a bit warmer Saturday through Sunday night,
- Partly cloudy with patchy freezing fog in the AM, sunny and a bit warmer Monday afternoon (Christmas Day).
- highs 32-38 lows 28-24 warming to 26 Sunday night (seasonal averages high 47 low 36)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with a slight (20%) chance of rain late tonight,
- Cloudy with AM costal rain likely (70%) while a good (50%) chance of inland AM rain, rain, possibly heavy at times, (0.75 in. of rain possible, snow level 2,000 ft.) and a bit cooler Tuesday afternoon and windy (Wind: S 15-25 mph increasing and shifting to SW 30-40 mph by late AM at the shore, then W 10-20 mph in the afternoon), evening rain, coastal showers at night while inland rain and snow showers Tuesday night (0.50 in. of rain possible, snow level 1,500 ft. at night),
- Mostly cloudy with AM coastal showers likely (70%) and a slight (20%) chance of afternoon coastal showers while AM rain and snow showers likely (70%) inland and a good (50%) chance of showers inland and a bit cooler Wednesday afternoon, just partly cloudy and a bit cooler Wednesday night,
- Areas of AM fog, sunny and a bit cooler Thursday afternoon, mostly clear in the evening, then mostly cloudy at night.
- lows 45-32 highs 52-48.
- Partly cloudy and a bit cooler with a slight (20%) chance of showers Friday AM, mostly cloudy and a bit cooler with a slight (20%) chance of afternoon showers, just mostly cloudy Friday night,
- Mostly sunny Saturday and Sunday (a bit warmer ), mostly clear both nights,
- Then sunny and a little bit warmer Monday (Christmas Day).
- highs 46-52 lows 32-29 warming back to 32. (seasonal averages high 51 low 39)
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Forecast for the Cascades in Lane County:
- Mostly cloudy with a slight (20%) chance of rain and snow late tonight,
- Cloudy with a (30%) chance of AM rain and snow, rain and snow Tuesday afternoon (0.75 in.of rain possible, 2-5 in. of snow possible) and breezy (Wind: SW 15-25 mph gusts to 45 mph), snow showers (5-11 in. of snow possible) and colder Tuesday night and breezy (Wind: SW 15-25 mph gusts to 40 mph decreasing and shifting W 10-20 mph late Tuesday night),
- A bit cooler with snow showers Wednesday, mostly cloudy with a (20%) chance of evening snow showers, a slight (20%) chance of snow showers and cold late Wednesday night,
- Mostly sunny and a bit warmer Thursday, then partly cloudy with a slight (20%) chance of showers Thursday night.
- snow level 5,500 ft. late tonight, 5,500 ft. falling to 4,500 ft. Tuesday afternoon, at the surface Tuesday night through Wednesday night, free air freezing level at the surface rising to 4,000 ft. Thursday afternoon, then snow level at the surface Thursday night.
- lows 32-14 warming top 19 Thursday night highs 34-25 warming to 33 Thursday.
- A mix of clouds and sun and a bit cooler with (30%) chance of snow showers Friday, mostly cloudy with a slight (20%) chance of evening snow showers, mostly cloudy with a slight (20%) chance of evening snow showers, then partly cloudy with a slight (20%) chance of snow showers at night,
- AM clouds, a mix of clouds and sun a bit cooler Saturday afternoon, just mostly clear at night,
- Mostly sunny and a bit warmer Sunday, mostly clear at night,
- Then mostly sunny and a bit warmer Monday (Christmas Day).
- snow level at the surface Friday and Friday night, then free air freezing level at the surface Saturday through Sunday, 5,000 ft. Sunday night, then 7,000 ft. Monday.
- highs 29-22 warming to 30 Monday lows 19-9 warming to 14 Sunday night.
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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
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