Here is my new weekly weather quiz question. What is  “Air Stagnation?” 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) will be controlling our weather for the foreseeable future. The graphic for days 3-7 shows more complex frontal systems building up and heading our way. 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 70 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 42 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 73 in the Moderate 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: RED – Wood burning is Prohibited. (Unhealthy levels expected again tonight.)

*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 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 patchy lingering fog and a (40%) chance of rain this afternoon (under 0.10 in. of rain possible), cloudy with a slight (20%) chance of evening rain, just cloudy late tonight (0.10 in. of rain possible),
• Cloudy with a slight (20%) chance of AM rain and snow, a bit cooler with a (30%) chance of rain and snow in the afternoon (under 0.10 in. of rain possible, snow level 1,000 ft.), a (30%) chance of evening rain and snow, a slight (20%) chance of rain and snow late Wednesday night (under 0.10 in. of rain possible),
• Cloudy and a bit cooler with rain, freezing rain and snow and a bit cooler Thursday afternoon (snow level 1,000 ft.), evening rain, freezing rain and sleet, then rain and freezing rain late at night.
• highs 47-40 lows 33-30 warming to 34 Thursday night.
• Mostly cloudy with AM rain and freezing rain, rain with a (30%) chance of freezing rain and a bit warmer Friday afternoon, rain Friday night,
• Rain likely (70%) Saturday, cloudy with a good (50%) chance of showers Saturday night,
• Then cloudy and a bit warmer with a good (50%) chance of rain Sunday through Monday.
• highs near 46 lows 38-36. (seasonal averages high 49 low 35)

 

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Forecast for Roseburg:

• Cloudy and a bit cooler with a (30%) chance of rain this afternoon (under 0.10 in. of rain possible) and tonight (under 0.10 in. of rain possible),
• Cloudy and a bit warmer with a slight (20%) chance of rain Wednesday and at night (0.10 in. of rain possible),
• Then mostly cloudy and a bit cooler with rain Thursday and at night.
• highs 49-46 warming to 52 Thursday lows near 37-42.
• Mostly cloudy and a bit warmer with rain Friday and Friday night,
• Mostly cloudy and a bit warmer with showers Saturday, showers likely (70%)  at night,
• Then mostly cloudy with a (40%) chance of rain and a bit warmer Sunday through Monday (a bit cooler).
• highs 50-46 lows 42-35. (seasonal averages high 51 low 37)

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

• Cloudy with a (30%) chance of rain and a bit cooler this afternoon (under 0.10 in. of rain possible), a (30%) of rain tonight (under 0.10 in. of rain possible),
• A slight (20%) chance of rain a bit warmer Wednesday and Wednesday night (0.10 in. of rain possible),
• Mostly cloudy with rain Thursday and at night.
• highs near 55 lows 39-49.
• Mostly cloudy and a bit warmer with rain Friday and Friday night,
• Mostly cloudy and a bit warmer with a showers likely (70%) Saturday, cloudy with a (40%) chance of showers Saturday night,
• Mostly cloudy and a bit warmer with rain likely (70%) Sunday and Sunday night,
• Mostly cloudy with a good (50%) chance of rain and a bit cooler Monday.
• highs 52-48 lows 43-40. (seasonal averages high 52 low 40)

 

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Forecast for the Cascades in Lane County:

• Cloudy and cooler with rain and snow likely (70%) this afternoon (0.10 in. of rain possible, 1 in. of snow possible), cloudy with a good (50%) chance of rain and snow tonight (under 0.10 in. of rain possible, 1-3 in. of snow possible),
• Cloudy and a bit cooler with a good (50%) chance of rain and snow Wednesday afternoon and evening (0.10 in. of rain possible), a good (50%) chance of rain and snow late Wednesday night,
• Cloudy with a good (50%) chance of AM rain and snow, rain and snow and a bit cooler Thursday afternoon and at night.
• snow level 4,000 ft. today through Wednesday, 3,000 ft. Wednesday night and Thursday, then 3,500 ft. Thursday night.
• highs 37-35 lows 28-24 warming back to 28 Thursday night.
• Mostly cloudy and a bit warmer with rain and snow Friday through Saturday, a good (50%) chance of rain and snow showers Saturday night,
• Cloudy and a bit warmer with a (40%) chance of rain and snow Sunday, a good (50%) chance of rain and snow Sunday night,
• Then rain and snow likely (70%) and a bit warmer Monday.
• snow level 5,000 ft. Friday, 5,500 ft. Friday night, 5,000 ft. Saturday through Sunday night, then 4,500 ft. Monday.
• highs near 36 lows near 27.

 

 

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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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