Here is my new weekly weather quiz question. What is  “Alluvium?” Please remember to post your answer at the bottom of this page. 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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An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is helping to change our weather. The graphic for days 1-3 shows the next frontal system moving into the Pacific Northwest. The graphic for days 3-7 shows more fronts approaching us Sunday through next Tuesday. 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 15 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 2 in the Good 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: GREEN – Burning is Allowed.

*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 SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 3:45 PM THIS AFTERNOON FOR POLK COUNTY, BENTON COUNTY, SOUTHWESTERN MARION COUNTY, AND WESTERN LINN COUNTY.
• A WIND ADVISORY IS IN EFFECT UNTIL 7 PM TODAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN, 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:

• Showers and a bit cooler with a slight (20%) chance of thunderstorms this afternoon (0.50 in. of rain possible, more in storms), a good (50%) chance of evening showers, mostly cloudy and colder with a slight (20%) chance of showers late tonight (0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Friday AM, just mostly cloudy and a bit cooler in the afternoon (under 0.10 in. of rain possible), cloudy with a slight (20%) chance of evening showers, a good (50%) chance of showers late Friday night (under 0.10 in. of rain possible),
• Cloudy with a good (50%) chance of AM showers, a slight (20%) chance of showers and a bit cooler Saturday afternoon, then mostly cloudy with a slight (20%) chance of showers Saturday night.
• highs 54-49 lows 39-37.
• Cloudy with a good (50%) chance of rain and a bit warmer Sunday, mostly cloudy with a good (50%) chance of  rain at night,
• Mostly cloudy and a bit warmer with rain likely (70%) Monday (Presidents’ Day), cloudy with a good (50%) chance of showers Monday night,
• Mostly cloudy and a bit cooler with showers  likely (70%) Tuesday, then cloudy with a good (50%) chance of showers Tuesday night and Wednesday.
• highs near 50 lows 40-36. (seasonal averages high 51 low 35)

 

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Forecast for Roseburg:

• Mostly cloudy with showers and cooler with a slight (20%) chance of thunderstorms this afternoon (0.50 in. of rain possible), mostly cloudy with a (40%) chance of showers tonight (under 0.10 in. of rain possible, snow level 3,500 ft. late tonight),
• Mostly cloudy with a (30%) chance of showers Friday (under 0.10 in. of rain possible, snow level 3,500 ft.), a (40%) chance of showers Friday night (under 0.10 in. of rain possible),
• Cloudy with a (40%) chance of showers and a bit cooler Saturday (snow level 3,000 ft.), then mostly cloudy with a (30%) chance of showers late Saturday night.
• highs 54-50 lows near 40.
• Mostly cloudy with rain and snow showers likely (70%) Sunday AM, a bit warmer with a good (50%) chance of showers Sunday afternoon, rain likely (70%) at night,
• Cloudy with rain and a bit warmer Monday (Presidents’Day), showers likely (70%) Monday night,
• Mostly cloudy and a bit cooler with rain likely (60%) Tuesday, cloudy with a (40%) chance of showers at night,
• Then mostly cloudy with a (40%) chance of rain and snow showers and a bit cooler Wednesday.
• highs 52-56 cooling to 50 Wednesday lows 43-36. (seasonal averages high 54 low 37)

 

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

• Mostly cloudy with showers and a slight (20%) chance of thunderstorms this afternoon ( o.50 in. of rain possible),  evening showers likely (70%), a (40%) chance of showers late tonight (under o.10 in. of rain possible),
• Cloudy with a (30%) chance of showers Friday (under 0.10 in. of rain possible) and Friday night (under 0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of showers Saturday, a slight (20%) chance of then mostly cloudy with a (40%) chance of showers Saturday night.
• highs 54-50 lows 44-42.
• Mostly cloudy with AM showers, a bit warmer with showers likely (70%) Sunday afternoon, a good (50%) chance of evening showers, rain likely (70%) late at night,
• Mostly cloudy and a bit warmer with rain Monday (Presidents’ Day) and breezy, showers likely (70%) Monday night,
• Mostly cloudy and a bit cooler with rain likely (70%) Tuesday, then cloudy with a (40%) chance of showers Tuesday night and Wednesday.
• highs 55-50 lows 46-42. (seasonal averages high 53 low 40)

 

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Forecast for the Cascades in Lane County:

• Cloudy with rain and snow showers and a bit cooler this afternoon (0.50 in. of rain possible, 1-4 in. of snow possible), mostly cloudy with evening rain and snow showers likely (70%), a good (50%) chance of rain and snow showers and colder late tonight,
• Cloudy and a bit cooler with a (40%) chance of rain and snow showers Friday AM, mostly cloudy with a slight (20%) chance of afternoon rain and snow showers, cloudy with a good (50%) chance of rain and snow showers late at night,
• Cloudy with a good (50%) chance of rain and snow showers and a bit cooler Saturday, then mostly cloudy with a (40%) chance of rain and snow showers and a bit cooler late Saturday night.
• snow level 4,500 ft. this afternoon, 4,000 ft. tonight, 3,500 ft. Friday, 4,500 ft. Friday night, then 3,500 ft. Saturday and Saturday night.
• highs 39-36 lows 27-24.
• Cloudy and a bit cooler with rain and snow likely (70%) Sunday, mostly cloudy with a good (50%) chance of rain and snow Sunday night,
• Mostly cloudy and a bit warmer with rain and snow Monday (Presidents’ Day), rain and snow showers likely (70%) Monday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Tuesday, cloudy with a good (50%) chance of rain and snow showers at night,
• Then mostly cloudy with a good (50%) chance of rain and snow showers and a bit cooler Wednesday.
• snow level 3,000 ft. Sunday, 4,000 ft. Sunday night, 5,000 ft. Monday, 4,500 ft. Monday night, 4,000 ft. Tuesday and Tuesday night, then 3,000 ft. Wednesday.
• highs 35-33 lows 27-23.

 

 

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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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