Check out my latest Eugene Daily News Weather Or Not column
http://eugenedailynews.com/2017/12/favorite-christmas-hymn-favorite/
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Here is my new weekly weather quiz question. What is a “Continental Air Mass?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.
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An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) has taken control as Upper Level High Pressure (Shaded “U” shape with blue arrows) offshore moved eastward and weakens. The graphics for days days 1-3 show the complex frontal system moving into Oregon. The graphics for days 3-7 show new complex frontal systems approaching the Pacific Northwest through next Saturday.
NOTE: Hoodoo Ski Area is open.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 56 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 82 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 61 in the Moderate 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: GREEN – Burning Is Allowed.
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
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Advisories:
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 7 AM TODAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY, AND THE NORTHERN OREGON CASCADE FOOTHILLS.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE GREATER PORTLAND METRO AREA, THE NORTHERN OREGON CASCADE FOOTHILLS.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM TODAY FOR THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, AND THE UPPER HOOD RIVER VALLEY
- 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 a (40%) chance of AM rain, a slight (20%) chance of showers and a bit warmer today afternoon (Christmas Day), mostly cloudy this evening, partly cloudy and colder with patchy fog late tonight,
- Patchy AM fog, mostly cloudy and a bit cooler with a slight (20%) chance of rain Tuesday afternoon, rain likely (70%) and a bit warmer Tuesday night and Wednesday, then mostly cloudy with a (30%) chance of rain Wednesday night.
- highs 46-39 warming back to 46 Wednesday lows 29-39.
- Mostly cloudy and a bit warmer with a (40%) chance of rain Thursday, a good (50%) chance of rain and a bit warmer Thursday night and Friday, a (40%) chance of rain Friday night,
- Mostly cloudy and a bit cooler with a (40%) chance of rain Saturday, then a slight (20%) chance of rain and a bit cooler Saturday night and Sunday.
- highs 48-52 cooling to 46 Sunday lows 44-36 (seasonal averages high 45 low 33)
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Forecast for Roseburg:
- Mostly cloudy with patchy fog and a slight (20%) chance of AM showers, just mostly cloudy and a bit warmer this afternoon (Christmas Day), mostly cloudy with patchy fog and freezing fog late tonight and Tuesday AM, mostly cloudy and a bit cooler with a slight (20%) chance of rain in the afternoon, a good (50%) chance of rain Tuesday night,
- Mostly cloudy and a bit warmer with a (30%) chance of rain Wednesday, a slight (20%) chance of rain Wednesday night.
- highs 45-42 warming back to 45 Wednesday lows 32-40 cooling to 38 Wednesday night.
- Mostly cloudy with (30%) chance of rain Thursday through Friday night,
- Then mostly cloudy with a slight (20%) chance of rain and a bit cooler Saturday through Sunday.
- highs 46-45 lows 38-43 cooling back to 38 Saturday night. (seasonal averages high 48 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 showers this AM (Christmas Day), just partly cloudy this afternoon at night with patchy fog late tonight and Tuesday AM, a (30%) chance of rain and a bit warmer in the afternoon, a good (50%) chance of rain Tuesday night,
- Mostly cloudy and bit warmer with a (30%) chance of rain Wednesday, then a slight (20%) chance of rain at night.
- highs 50-52 lows 34-45 cooling to 42 Wednesday night.
- Mostly cloudy and bit warmer with a (30%) chance of rain Thursday through Saturday, then mostly cloudy with a slight (20%) chance of rain Saturday night and Sunday.
- highs 54-52 warming back to 54 Sunday lows 49-42. (seasonal averages high 51 low 40)
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Forecast for the Cascades in Lane County:
- A mix of clouds and sun and a bit cooler with a sight (20%) chance of snow this afternoon (Christmas Day), just partly cloudy tonight,
- A mix of clouds and sun with a slight (20%) chance of snow and a bit warmer Tuesday afternoon, rain and snow likely (70%) late Tuesday night,
- Mostly cloudy with rain and snow likely (70%) Wednesday, then mostly cloudy with a (30%) chance of rain and snow Wednesday night.
- snow level 3,000 ft. today, 4,500 ft. late tonight, snow level 3,000 ft. Tuesday, 4,000 ft. Tuesday night, 5,000 ft. Wednesday and Wednesday night.
- lows 33-20 warming back to 26 Wednesday night highs 33-35.
- Mostly cloudy with a (30%) chance of rain and snow and a bit warmer Thursday, a good (50%) chance of rain and snow Thursday night and Friday, a (40%) chance of rain and snow at night and Saturday, mostly cloudy and a bit cooler with a (40%) chance of rain and snow Friday night and Saturday, then mostly cloudy with rain and snow Saturday night and Sunday.,
- snow level 4,000 ft. Thursday, 6,000 ft. Thursday night, 6,500 ft. Friday, 4,000 ft. Saturday, 5,500 ft. Saturday night, then 4,500 ft. Sunday.
- highs 38-40 cooling to 36 Saturday lows 33-26.
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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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