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 for your Sunday. The graphic for days 3-7 shows no particular surface fronts for the week. 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 14 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 5 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 WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM THIS EVENING UNTIL 1 PM SUNDAY FOR JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A WIND ADVISORY IS IN EFFECT FROM 10 AM SUNDAY 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 a slight (20%) chance of evening showers, showers increasing to rain late tonight (0.25 in. of rain possible),
• Mostly cloudy with showers Sunday, evening showers likely (60%), rain late at night (0.25 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.
• lows 40-42 cooling to 35 Tuesday night highs near 52.
• Cloudy with a good (50%) chance of showers and a bit cooler Wednesday, 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 slight (20%) chance of rain and snow showers and a bit warmer Friday and Friday night,
• Then a mix of clouds and sun and a bit warmer Saturday.
• highs 47-43 warming to 48 Saturday night lows 32-30. (seasonal averages high 52 low 35)

 

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Forecast for Roseburg:

• Mostly cloudy with a (40%) chance of evening showers, showers late tonight (0.10 in. of rain possible, snow level 3,000 ft.),
• Cloudy with showers likely (70%) Sunday (0.10 in. of rain possible, snow level 2,500 ft. rising to 3,500 ft. in the afternoon), evening showers likely (70%), then rain late Sunday night (0.25 in. of rain possiblesnow level 3,500 ft. late at night),
• 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, a good (50%) chance of evening showers, a good (50%) chance of rain and snow showers Tuesday night,
• lows 42-45 cooling to 36 Tuesday night highs 52-55 cooling to 50 Tuesday.
• 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 just mostly cloudy and a bit warmer Saturday.
• highs 52-56 cooling back to 52 Monday
• highs 47-50 lows 34-29. (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 evening coastal showers likely (70%) while a good (50%) chance of evening inland showers, showers late tonight (o.25 in. of rain possible),
• Mostly cloudy with coastal AM showers and coastal showers likely (70%) Sunday afternoon while inland showers likely (70%) Sunday (0.50 in. of rain possible), coastal evening showers while evening inland showers likely (70%), rain late Sunday night (0.50 in. of rain possible),
• Mostly cloudy and a bit warmer with rain (0.50 in. of rain possible) and breezy (Wind: SE 10-20 mph increasing and shifting S 15-25 mph in the afternoon) 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.
• lows 47-42 highs 52-54 cooling to 50 Tuesday.
• Cloudy with a 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 Saturday.
• highs 50-52 lows near 37. (seasonal averages high 53 low 40)

 

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Forecast for the Cascades in Lane County:

• Cloudy with rain and snow showers tonight (0.25 in. of rain possible, 2 in. of snow possible),
• Rain and snow showers and a bit warmer Sunday (0.25 in. of rain possible, 1-4 in. of snow possible), evening rain and snow showers, rain and snow late at night (0.50 in. of rain possible, 2-5 in. of snow possible),
• Cloudy with rain and snow Monday (Presidents’ Day) and at night,
• Mostly cloudy with rain and snow showers and a bit cooler Tuesday, then cloudy with a (40%) chance of rain and snow showers at night.
• snow level 3,500 ft. tonight, 3,000 ft. Sunday, 3,500 ft. Sunday night, 4,500 ft. Monday, 4,000 ft. Monday night, 3,500 ft. Tuesday, then 3,000 ft. Tuesday night.
• lows 26-30 cooling to 22 Tuesday night highs 38-34.
• Cloudy with snow showers likely (70%) and a bit cooler Wednesday, 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 a mix of clouds and sun 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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