Here is my weekly weather quiz question. What is “Active Storage Capacity?” Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

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The High Pressure Ridge that took over for your Wednesday for some drying time is moving away to be replaced by an Upper Level Low Pressure Trough that takes over returning valley rain and mountain snow. The days 1-3 graphic shows a frontal system moving into the Pacific Northwest bringing back the rain. The graphic for days 3-7 shows another frontal system that will push into Oregon Monday. It looks like another backdoor front will drop down from the Northeast pushing cold Canadian air our way for a colder workweek. So far, the snow will stay in the mountains. For mountain snow conditions at the local ski areas check out their websites or give them a call.

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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 47 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 55 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Home Wood Heating Advisory:

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 (LRAPA)

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Advisories:

• AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 3 PM FRIDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN 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:

• Mostly cloudy with patchy lingering fog this afternoon, patchy evening fog with a slight (20%) chance of rain, becoming mostly cloudy with a good (50%) chance of showers late tonight,
• Mostly cloudy with a slight (20%) chance of AM showers, a mix of clouds and sun with a slight (20%) chance of showers Friday afternoon, mostly clear and colder at night,
• Mostly sunny in the AM, becoming mostly cloudy and a bit cooler Saturday afternoon, then rain or snow likely (70%) Saturday night.
• highs near 42 lows 35-29 warming to 33 Saturday night.
• Cloudy with rain and snow showers (snow level 1,000 ft. falling to the valley floor) likely (70%) Sunday (New Year’s Day), mostly cloudy with a good (50%) chance of rain and snow showers Sunday night,
• A mix of clouds and sun and a bit cooler Monday,  just partly cloudy Monday night,
• Mostly sunny and a bit cooler Tuesday, clear and cold at night,
• Then sunny, but cooler Wednesday.
• highs 38-30 lows 27-15. (seasonal averages high 45 low 33)

 

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Forecast for Roseburg:

• Sunny and a bit cooler this afternoon, mostly clear this evening, partly cloudy with a slight (20%) chance of showers late tonight,
• Mostly cloudy with a (30%) chance of AM showers, a slight (20%) chance of rain and snow showers and a bit cooler Friday afternoon (snow level 3,500 ft. falling to 2,000 ft. in the afternoon), then just partly cloudy and colder at night,
• Partly cloudy and a bit cooler Saturday, cloudy with a (30%) chance of rain and snow in the evening, rain and snow likely (70%) late Saturday night.
• highs 45-42 lows 36-33 warming back to 36 Saturday night.
• Mostly cloudy with rain and snow showers and a bit cooler Sunday (New Year’s Day), cloudy with a good (50%) chance of evening rain and snow showers, mostly cloudy and colder with a (40%) chance of snow showers late Sunday night,
• Mostly cloudy with a (30%) chance of snow showers and a bit cooler Monday, partly cloudy and cooler with a slight (20%) chance of snow showers at night,
• Sunny and a bit cooler Tuesday and Wednesday, clear at night,
• highs 39-29 lows 25-16. (seasonal averages high 48 low 36)

 

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Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Sunny and a bit cooler this afternoon, partly cloudy this evening at the shore and mostly cloudy with a slight (20%) chance of coastal showers late tonight while clear this evening inland and just partly cloudy inland late tonight,
• Mostly cloudy with a slight (20%) chance of AM coastal showers while slight (20%) chance of inland showers and a bit cooler Friday, partly cloudy in the evening, mostly clear Friday night,
• Partly cloudy and a bit cooler Saturday with a slight (20%) chance of coastal rain in the afternoon, a (40%) chance of evening rain, then rain likely (70%) late Saturday night.
• highs 52-46 lows 39-33 warming to 37 Saturday night.
• Mostly cloudy with showers Sunday AM (New Year’s Day), rain and snow and a bit cooler in the afternoon, a good (50%) chance of rain and snow showers in the evening, rain and snow showers likely (70%) and colder Sunday night,
• Mostly cloudy and a bit cooler with a (30%) chance of rain and snow showers Monday, mostly clear and colder at night,
• Sunny and a bit cooler Tuesday, clear Tuesday night,
• Then sunny and a bit warmer Wednesday.
• highs 43-38 warming to 40 Wednesday lows 33-24. (seasonal averages high 51 low 40)

 

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Forecast for the Cascades in Lane County:

• Mostly sunny and a bit warmer this afternoon, partly cloudy with a (40%) chance of rain and snow late tonight,
• AM clouds, a mix of clouds and sun and a bit cooler with a good (50%) chance of snow showers in the afternoon (under 0.10 in. 0f rain possible), partly cloudy with a slight (20%) chance of  evening snow showers, becoming mostly clear and cold late Friday night,
• Mostly sunny and a bit cooler Saturday, then becoming mostly cloudy with snow at times Saturday night.
• free air freezing level 9,000 ft. today, snow level 5,500 ft. late tonight, 2,500 ft. Friday, free air freezing level at the surface Friday night and Saturday, then snow level at the surface Saturday night.
• highs 38-30 lows 23-16.
• Snow showers and a bit cooler Sunday (New Year’s Day), snow showers likely (70%) at night,
• Mostly cloudy and cooler with a good (50%) chance of snow showers Monday, partly cloudy with a slight (20%) chance of snow showers at night,
• Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
• Then sunny and a bit warmer Wednesday.
• snow level at the surface Sunday through Monday night, then free air freezing level at the surface Tuesday through Wednesday.
• highs 26-15 warming to 20 Wednesday lows 11-1 warming to 4 Tuesday 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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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

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