Here is my new weekly weather quiz question. What is the “Aleutian Low?” 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 controlling our weather for the foreseeable future. The graphic for days 1-3 shows the complex frontal system that moved through the Pacific Northwest bringing rain and then snow. The worst of the storm struck from Salem North through Portland. Next the temperatures fall behind the cold front. A record 1.14 inches of rain fell Sunday in Eugene. The graphic for days 3-7 shows another very active complex frontal system heading our way by late next 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 9 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 9 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 8 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 WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 6 PM THIS EVENING FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON,  THE LOWER COLUMBIA.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 8 PM THIS EVENING FOR THE NORTHERN OREGON CASCADE FOOTHILLS.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE NORTHERN OREGON CASCADES.
• A FLOOD WARNING IS IN EFFECT FOR THE MARYS RIVER NEAR PHILOMATH, JOHNSON CREEK AT SYCAMORE, AND THE SIUSLAW RIVER NEAR MAPLETON.
• A FLOOD WATCH IS IN EFFECT THROUGH TUESDAY MORNING FOR THE CENTRAL OREGON COAST, THE CENTRAL COAST RANGE OF WESTERN OREGON, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE NORTHERN OREGON CASCADE FOOTHILLS, AND THE CASCADE FOOTHILLS IN LANE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM THIS EVENING UNTIL 10 AM TUESDAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES AND THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 AM UNTIL 4 PM TODAY FOR 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 showers and cooler this afternoon (0.10 in. of rain possible, snow level 1,000 ft.-1,500 ft), mostly cloudy with a good (50%) chance of showers tonight (under 0.10 in. of rain possible),
• Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain and a bit warmer Tuesday afternoon (under 0.10 in. of rain possible, snow level 1,500 ft.), cloudy with a good (50%) chance of rain at night (0.10 in. of rain possible),
• Cloudy with rain likely (70%) and a bit warmer Wednesday, then rain at night.
• highs 42-52 lows 33-46.
• Mostly cloudy and a bit warmer with rain Thursday, showers likely (70%) Thursday night,
• Cloudy and a bit cooler with a showers likely (70%) Friday, a good (50%) chance of showers at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain Saturday, partly cloudy with patchy fog Saturday night,
• Then partly cloudy and a bit warmer with patchy fog Sunday.
• highs 56-47 warming to 50 Sunday lows 42-35. (seasonal averages high 50 low 35)

 

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Forecast for Roseburg:

• Mostly cloudy and much cooler with rain and snow showers today (0.25 in. of rain possible, 1 in. of snow possible, snow level 1,500 ft. rising to 2,000 ft. this afternoon), a (30%) chance of evening rain and snow showers, a (40%) chance of rain and snow tonight (under 0.10 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft. late at night),
• AM rain and snow, rain and a bit warmer Tuesday afternoon (0.25 in. of rain possible, snow level 1,500 ft. rising to 3,000 ft. in the afternoon), cloudy with a (40%) chance of rain Tuesday night (0.10 in. of rain possible),
• Mostly cloudy with rain likely (70%) and a bit warmer Wednesday, then rain at night.
• highs 46-57 lows 35-50.
• Cloudy with rain Thursday and a bit warmer, mostly cloudy with a good (50%) chance of rain Thursday night,
• Mostly cloudy with rain likely (70%) and a bit cooler Friday, cloudy with a (40%) chance of showers at night,
• Mostly cloudy with a slight (20%) chance of rain and snow showers and a bit cooler Saturday, just mostly clear Saturday night,
• Then sunny and a bit warmer with patchy fog Sunday.
• highs 58-50 warming to 55 Sunday lows 42-34. (seasonal averages high 52 low 37)

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

• Mostly cloudy with showers and much cooler this afternoon (0.25 in. of rain possible, no snow accumulation expected, snow level 1,500 ft. rising to 2,000 ft. this afternoon), mostly cloudy with a (30%) chance of evening showers, a (40%) chance of coastal rain late tonight while a (40%) chance of inland rain and snow showers while a (40%) chance of rain and snow inland late tonight (under 0.10 in. of rain possible, no snow accumulation expected, snow level 2,000 ft. falling to 1,500 ft. late tonight),
• Mostly cloudy with AM coastal rain while AM inland rain and snow, a bit warmer with rain likely (70%) Tuesday afternoon (0.25 in. of rain possible), cloudy with a (40%) chance of rain Tuesday night (0.10 in. of rain possible),
• Cloudy with AM coastal rain likely (70%) rand rain and a bit warmer Wednesday afternoon while rain likely (70%) inland Wednesday, then rain and breezy Wednesday night.
• highs 49-56 lows 38-52.
• Mostly cloudy and a bit warmer with rain and breezy Thursday, rain likely (70%) breezy and colder Thursday night and Friday, a good (50%) chance of showers Friday night,
• Just mostly cloudy Saturday, mostly clear at night,
• Then partly cloudy and a bit warmer with patchy fog Sunday.
• highs 58-53 warming to 56 Sunday lows 45-39. (seasonal averages high 52 low 40)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit cooler with snow showers this afternoon (4 in. of snow possible), cloudy with evening snow showers, a good (50%) chance of snow showers and cold late tonight (2 in. of snow possible),
• Mostly cloudy with snow and a bit warmer Tuesday (2-5 in. of snow possible), cloudy rain and snow likely (70%) at night,
• Mostly cloudy and a bit warmer with rain Wednesday, then rain Wednesday night.
• snow level at the surface today through Tuesday, 4,500 ft. Tuesday night, 5,000 ft. Wednesday, then 8,000 ft. Wednesday night.
• highs 28-40 lows 22-35.
• Mostly cloudy with rain and a bit warmer Thursday, showers likely (70%) Thursday night through Friday night,
• Mostly cloudy and a bit warmer with a (40%) chance of snow Saturday, partly cloudy Saturday night,
• Then mostly sunny and a bit warmer Sunday.
• snow level 7,500 ft. Thursday, 5,500 ft. Thursday night, 4,500 ft. Friday, 4,000 ft. Friday night, 2,500 ft. Saturday, free air freezing level 4,000 ft. Saturday night, then 8,000 ft. Sunday.
• highs 42-32 warming to 37 Sunday lows 30-23.

 

 

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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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