Here is my weekly weather quiz question for the last time. What is  “Alluvium?” Alluvium: Sediments deposited by erosional processes, usually by streams. I’ll have a new weekly weather quiz question for you starting Monday. 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) has changed our weather. The graphic for days 1-3 shows the next frontal system moving into the Pacific Northwest today. The graphic for days 3-7 shows no particular surface fronts for the week until next Sunday. 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 8 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 1 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 FLOOD WARNING IS IN EFFECT FOR THE TUALATIN RIVER AT FARMINGTON.
• A WIND ADVISORY IS IN EFFECT UNTIL 10 PM MONDAY 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:

• Mostly cloudy with sun peaks and shower chances increasing this afternoon (0.25 in. of rain possible), evening showers likely (60%), rain late tonight (0.50 in. of rain possible),
• Mostly cloudy and a bit warmer with rain (0.25 in. of rain possible) Monday (Presidents’ Day) and at night (0.50 in. of rain possible),
• Showers and a bit cooler Tuesday, then cloudy with a (40%) chance of showers Tuesday night.
• highs 52-54 cooling to 50 Tuesday lows 42-35.
• Cloudy with a good (50%) chance of AM showers, showers likely (70%) and a bit cooler Wednesday afternoon, mostly cloudy with a (40%) chance of showers Wednesday night,
• Mostly cloudy with a (40%) chance of rain and snow showers and a bit cooler Thursday (snow level 1,000 ft.), a (40%) chance of showers at night,
• A bit warmer with a good (50%) chance of rain and snow showers Friday (snow level 1,500 ft) )and Friday night (snow level 1,000 ft.),
• Then partly cloudy and a bit warmer Saturday.
• highs 47-45 warming to 48 Saturday lows 32-30. (seasonal averages high 52 low 35)

 

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Forecast for Roseburg:

• Cloudy with showers likely (70%) this afternoon (0.10 in. of rain possible, snow level 2,500 ft. rising to 3,500 ft. this afternoon), evening showers likely (70%), then rain late tonight (0.25 in. of rain possible, evening snow level 3,500 ft.),
• Mostly cloudy and a bit warmer with rain (0.25 in. of rain possible) Monday (Presidents’Day), rain at night (0.50 in. of rain possible, snow level 3,500 ft. late),
• Mostly cloudy with AM rain likely (70%), a bit cooler with showers likely (60%) Tuesday afternoon (snow level 3,500 ft.), a good (50%) chance of evening showers, a good (50%) chance of rain and snow showers Tuesday night,
• highs 52-55 cooling to 50 Tuesday lows 44-36.
• Cloudy with rain and snow showers likely (70%) and a bit cooler Wednesday, mostly cloudy with a (30%) chance of rain and snow showers Wednesday night through Thursday night,
• Mostly cloudy with a slight (20%) chance of rain and snow showers and a bit warmer Friday and at night,
• Then partly cloudy and a bit warmer with a slight (20%) chance of rain and snow showers Saturday.
• highs 50-52 cooling to 47 Friday warming to 50 Saturday lows 33-29. (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 likely (70%) this afternoon, coastal evening showers while evening inland showers likely (70%), rain late tonight (0.50 in. of rain possible),
• Mostly cloudy and a bit warmer with rain (0.50 in. of rain possible) and breezy (Wind: SW 15-25 mph at the shore while SW 10-20 mph inland) Monday (Presidents’ Day), rain Monday night (0.75 in. of rain possible) and Tuesday AM, showers and a bit cooler in the afternoon, then showers likely (70%) Tuesday night.
• highs 52-54 cooling to 50 Tuesday lows 48-40.
• Cloudy with showers likely (70%) Wednesday, mostly cloudy with a good (50%) chance of showers at night and Thursday, a slight (20%) chance of showers at night,
• Mostly cloudy with a slight (20%) chance of rain and snow showers Friday, a slight (20%) chance of showers Friday night,
• Then just partly cloudy with a slight (20%) chance of showers Saturday.
• highs 50-48 warming to 52  Saturday lows near 37. (seasonal averages high 53 low 40)

 

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Forecast for the Cascades in Lane County:

• Rain and snow showers and a bit warmer today (0.25 in. of rain possible, 1-4 in. of snow possible), evening rain and snow showers, rain and snow late tonight (0.50 in. of rain possible, 2-5 in. of snow possible),
• Cloudy with rain and snow (0.25 in. of rain possible, 1-3 in. of snow possible) Monday (Presidents’ Day) and at night,
• Mostly cloudy with rain and snow showers and a bit cooler Tuesday, evening rain and snow showers likely (70%), then cloudy with a (40%) chance of rain and snow showers at night.
• snow level 3,500 ft. today, 4,000 ft. tonight, 5,000 ft. Monday, 4,000 ft. Monday night, 3,000 ft. Tuesday, then at the surface Tuesday night.
• highs 38-34 lows 30-22.
• Cloudy with a good (50%) chance of AM snow showers, snow showers likely (70%) and a bit cooler Wednesday afternoon, cloudy with a good (50%) chance of snow showers Wednesday night,
• Mostly cloudy and a bit cooler with a (40%) chance of snow showers Thursday, a slight (20%) chance of snow showers Thursday night through Friday night,
• Then partly cloudy and a bit warmer with a slight (20%) chance of snow showers Saturday.
• snow level at the surface Wednesday through Saturday.
• highs 33-28 warming to 32 Saturday lows 18-16.

 

 

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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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