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 High Pressure Ridge (Shaded “Arch” shape with blue arrows) has taken over and is keep us in sunshine. The graphic for days 1-3 shows no surface frontal systems moving into the Pacific Northwest. The graphic for days 3-7 shows the next fronts to approach us Friday 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 66 in the Moderate 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 27 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: YELLOW – Caution is Advised.

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:

• A WIND ADVISORY IS IN EFFECT UNTIL 10 PM THIS EVENING FOR THE GREATER PORTLAND METRO AREA.
• A WINTER STORM WATCH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT FOR THE WESTERN COLUMBIA RIVER GORGE,  THE CENTRAL COLUMBIA RIVER GORGE, AND THE UPPER HOOD RIVER VALLEY.
• A HIGH WIND WATCH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY NIGHT FOR THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN, AND WESTERN LAKE COUNTY.
• AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM TUESDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN, AND WESTERN LAKE COUNTY.
• A FLOOD WARNING IS IN EFFECT FOR THE TUALATIN RIVER AT FARMINGTON.
• 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:

• Partly cloudy with patchy fog late tonight and Tuesday AM, partly cloudy and a bit warmer in the afternoon, becoming mostly cloudy with a slight (20%) chance of evening rain, rain likely (70%) and a bit warmer late Tuesday night (0.25 in. of rain possible),
• Mostly cloudy and a bit warmer with rain Wednesday (0.50 in. of rain possible) through Thursday AM, showers likely (70%) and a bit cooler Thursday afternoon (0.50 in. of rain possible), then cloudy with a good (50%) chance of rain Thursday night.
• lows 32-45 cooling to 38 Thursday night highs 53-55 cooling back to 53 Thursday.
• Cloudy and a bit cooler with a (30%) chance of showers Friday, a (40%) chance of showers at night,
• Cloudy with a good (50%) chance of showers and a bit cooler Saturday, mostly cloudy with a (40%) chance of showers Saturday night,
• A good (50%) chance of rain Sunday, then rain likely (70%) Sunday night and Monday (Presidents’ Day).
• highs 50-48 lows near 38. (seasonal averages high 51 low 35)

 

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Forecast for Roseburg:

• Mostly cloudy tonight,
• Patchy AM fog, mostly cloudy Tuesday afternoon, mostly cloudy with a (30%) chance of rain Tuesday night (under 0.10 in. of rain possible),
• Mostly cloudy with rain likely (70%) Wednesday (0.10 in. of rain possible), rain at night (0.25 in. of rain possible) and Thursday AM, showers likely (70%) in the afternoon, then cloudy with a (30%) chance of showers Thursday night,
• lows 39-49 cooling back to 39 Thursday night highs 58-60 cooling to 52 Thursday.
• Cloudy with a (30%) chance of showers and a bit cooler Friday through Saturday, mostly cloudy with a (40%) chance of showers in the afternoon, mostly cloudy with a (40%) chance of showers Saturday night,
• Then mostly cloudy with rain likely (70%) Sunday and Monday, a (40%) chance of rain Sunday night.
• highs 52-54 cooling back to 52 Sunday lows 40-42 cooling to 38 Sunday night. (seasonal averages high 53 low 37)

 

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

• Mostly cloudy tonight,
• Mostly cloudy Tuesday with a slight (20%) chance of coastal rain and a bit warmer in the afternoon, cloudy with a (40%) chance of evening rain, rain late Tuesday night (0.10 in. of rain possible) and Wednesday (a bit cooler, o.50 in. of rain possible), rain and windy (Wind: S 25-35 at the shore while S 15-25 mph inland) Wednesday night (0.50 in. of rain possible),
• Mostly cloudy with AM rain likely (70%), showers likely (70%) and a bit cooler Thursday afternoon, then cloudy with a (40%) chance of showers Thursday night.
• lows 44-52 cooling to 50 Wednesday night highs 57-60.
• Cloudy and a bit warmer with a (40%) chance of showers Friday through Saturday night,
• Then mostly cloudy with rain likely (70%) Sunday and Monday (Presidents’ Day), a (%) chance of rain Sunday night.
• highs 53-50 warming to 52 Sunday lows never 42. (seasonal averages high 53 low 40)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy tonight,
• Partly cloudy and a bit warmer Tuesday and in the evening, mostly cloudy with a (40%) chance of rain late Tuesday night (0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with rain likely (70%) and breezy (Wind: 15-25 mph gusts to 40 mph) Wednesday, rain and breezy (Wind: 15-25 mph gusts to 45 mph) at night,
• Cloudy and a bit cooler with rain and snow Thursday AM, rain and snow showers and a bit cooler in the afternoon, then cloudy with a good (50%) chance of rain and snow showers Thursday night.
• free air freezing level 10,00o ft. falling to 7,500 ft. late tonight, 8,000 ft. rising to 11,000 ft. Tuesday, snow level above 8,000 ft. Tuesday night through Wednesday night, 5,000 ft. falling to 4,000 ft. Thursday, then 3,500 ft. Thursday night.
• lows 24-33 cooling to 26 Thursday night highs 44-39.
• Cloudy and a bit cooler with a (40%) chance of rain and and snow showers Friday and a bit cooler, a good (50%) chance of rain and snow showers and a bit cooler at night and Saturday, mostly cloudy with a good (50%) chance of rain and snow showers Saturday night,
• Rain and snow likely (70%) and a bit cooler Sunday, then cloudy with rain and snow likely (70%) Sunday night and Monday (Presidents’ Day).
• snow level 3,500 ft. Friday, 4,500 ft. Friday night, 3,500 ft. Saturday, 4,000 ft. Saturday night, then 3,500 ft. Sunday through Monday.
• highs 37-33 lows near 25.

 

 

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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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