Here is my new weekly weather quiz question. What is “Alluvium?”  Please remember to post your answer at the bottom of this page. An email will not suffice. 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 area with blue arrows) is sending more storms our way.  The Days 1,2 & 3 graphic shows the frontal system that is moving through the Pacific Northwest. The graphic for days 3-7 shows another frontal system positioning itself northwest of us and then sliding southward   through Oregon. There will be continued snow on the Cascade Passes to start your workweek, BUT so far Willamette Pass and Hoodoo ski areas will not be open. I’d say they need two good snow storms to produce the approximately 30 inches of snow they need to open. Drive carefully! If you need to travel the passes remember this is the first real snow of the season and you will have to be prepared to chain-up if necessary.

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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 15 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 14 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: Yellow – 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 HIGH SURF WARNING IS IN EFFECT FROM NOON TODAY UNTIL 1 AM TUESDAY FOR THE NORTH OREGON COAST.
• A HIGH SURF ADVISORY IS IN EFFECT FROM NOON TODAY UNTIL 1 AM THURSDAY FOR THE THE CENTRAL OREGON COAST.
• A WINTER STORM WARNING IS IN EFFECT THROUGH 6 PM TODAY  FOR THE NORTHERN OREGON CASCADES  AND THE CASCADES IN LANE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 1 PM TODAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTH OREGON CASCADES AND THE SISKIYOU MOUNTAINS, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
• A HIGH SURF ADVISORY IS IN EFFECT FROM 1 PM TODAY THROUGH 10 AM TUESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A Permanent Health Advisory remains 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.
• A Blue-Green Algae Health Advisory remains in effect for Agency Lake. Agency Lake is located just north of Upper Klamath Lake near Klamath Falls along Highway 97 in Klamath County. Water monitoring on the lake has confirmed the presence of high levels of blue-green algae and associated toxins that can be harmful to people and animals. Swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing and power boating, should be avoided in areas where blooms are identified. Although toxins are not absorbed through the skin, contact with cells from a bloom can cause skin irritation and a red, puffy rash in individuals with skin sensitivities, or those who develop rashes easily.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with showers and a bit warmer this afternoon (0.10 in. of rain possible), a good (50%) chance of evening showers, a slight (20%) chance of showers with areas of fog late tonight (under 0.10 in. of rain possible),
• Areas of fog Tuesday AM, a mix of clouds and sun and a bit cooler in the afternoon, mostly cloudy with rain late at night (0.15 in. of rain possible),
• Mostly cloudy with showers likely (70%) and a bit warmer Wednesday afternoon, then mostly cloudy with a good (50%) chance of showers Wednesday night.
• highs 52-50 lows 40-42 cooling back to 40 Wednesday night.
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Thursday, just mostly cloudy with areas of fog at night and Friday AM, mostly cloudy and a bit cooler Friday, cloudy with a (30%) chance of rain Friday night through Saturday night,
• Then mostly cloudy and a bit cooler with a good (50%) chance of showers Sunday.
• highs 50-47 warming to 52 Saturday and Sunday lows 35-42. (seasonal averages high 48 low 36)

 

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Forecast for Roseburg:

• Mostly cloudy and a bit warmer with showers likely (70%) this afternoon (0.25 in. of rain possible, snow level 3,500 ft.), a (30%) chance of showers tonight (under 0.10 in. of rain possible),
• Mostly cloudy Tuesday, partly cloudy in the evening, becoming mostly cloudy with a good (50%) chance of rain at night (0.15 in. of rain possible, snow level 3,500 ft. late at night),
• Mostly cloudy with AM rain likely (70%), showers and a bit warmer Wednesday afternoon, then a (40%) chance of showers Wednesday night.
• highs 50-52 lows 42-38.
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Thursday, just mostly cloudy with patchy fog and freezing fog late at night,
• Mostly cloudy with patchy AM freezing fog and a slight (20%) chance of showers, a slight (20%) chance of rain and a bit cooler Friday afternoon, mostly cloudy Friday with a slight (20%) chance of rain with patchy fog and a slight (20%) chance of rain late Friday night through Saturday night,
• Then mostly cloudy and a bit cooler with a (30% ) chance of rain Sunday.
• highs 50-55 lows 36-38. (seasonal averages high 50 low 38)

 

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

• Mostly cloudy with showers likely (70%) and a bit warmer this afternoon (0.25 in. of rain possible), a (30%) chance of showers tonight (under 0.10 in. of rain possible),
• Mostly cloudy Tuesday, mostly cloudy with coastal evening showers likely (60%) while a good (50%) chance of evening inland rain with inland rain late Tuesday night (0.50 in. of rain possible),
• Mostly cloudy with AM rain likely (70%), showers likely (70%) and a bit warmer Wednesday afternoon, then a (40%) chance of showers at night.
• highs near 55 lows near 44.
• Mostly cloudy with a slight (20%) chance of showers Thursday, just mostly cloudy with patchy fog Thursday night,
• Patchy AM fog with a slight (20%) chance of showers, mostly cloudy and a bit cooler with a slight (20%) chance of showers Friday afternoon, mostly cloudy with patchy fog Friday night through Saturday night,
• Patchy AM fog, then mostly cloudy and a bit cooler with a (40%) chance of rain Sunday.
• highs 54-52 warming to 57 Saturday cooling to 55 Sunday lows 40-46. (seasonal averages high 52 low 41)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy with snow and rain and a bit cooler this afternoon (0.75 in. of rain possible, 5-9 in. of snow possible), evening rain and snow showers likely (70%), a good (50%) chance of rain and snow showers late tonight (0.10 in. of rain possible, 1 in. of snow possible),
• A slight (20%) chance of AM rain and snow showers, mostly cloudy and a bit warmer Tuesday afternoon, rain and snow late Tuesday night,
• Mostly cloudy with rain and snow showers Wednesday, then cloudy with rain and snow showers likely (70%) Wednesday night.
• snow level 3,500 ft. today through Tuesday, 4,500 ft. Tuesday night, 4,000 ft. Wednesday, then 3,000 ft. Wednesday night.
• highs 32-34 lows 28-25.
• Cloudy and a bit warmer with a good (50%) chance of snow showers Thursday,  just mostly cloudy at night,
• Partly cloudy and a bit warmer with a slight (20%) chance of rain and snow Friday, becoming mostly cloudy with a slight (20%) chance of rain and snow Friday  night through Saturday night,
• Then a mix of clouds and sun and a bit cooler with a  good (50%) chance of rain and snow showers Sunday.
• snow level 2,500 ft. Thursday, free air freezing level 3,500 ft. Thursday night, snow level 3,500 ft. Friday, 5,500 ft. Friday night and Saturday, 5,000 ft. Saturday night, then 5,500 ft. Sunday.
• highs 35-42 lows 22-32.

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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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