Here is my weekly weather quiz question. What is “An Aquifuge?” 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) takes control of our weather again. A short-lived upper level ridge of high pressure (Shaded “Arch” shape with blue arrows on previous graphic) will take over long enough to give us sunshine for Sunday. The graphic for days 1-3 shows the front that is moving toward Oregon that should hit us by Saturday morning. Of course, rain will be falling ahead of the frontal system. The graphic for days 3-7 shows the next complex frontal system that will be moving through the Pacific Northwest next Tuesday. You can see the break as surface high pressure takes over Sunday.  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 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 27 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 4 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 COLUMBIA RIVER AT VANCOUVER AFFECTING MULTNOMAH AND CLARK COUNTIES.
• A FLOOD WARNING IS IN EFFECT FOR THE GRANDE RONDE RIVER AT TROY AND THE UMATILLA NEAR GIBBON.
• 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,
• Mostly cloudy with patchy fog and a slight (20%) chance of rain Friday AM, rain Friday afternoon (0.25 in. of rain possible), a good (50%) chance of evening showers, rain likely (70%) late at night (0.50 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Saturday (0.25 in. of rain possible), partly cloudy and colder with patchy fog late Saturday night,
• AM clouds and sun with patchy AM fog, mostly sunny and a bit warmer Sunday, then partly cloudy at night.
• lows 37-49 cooling to 32 Saturday night highs 55-53 warming back to 55 Sunday.
• A mix of clouds and sun and a bit warmer Monday, increasing clouds to mostly cloudy with a slight (20%) chance of showers Monday night,
• Mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday, a (40%) chance of showers at night and Wednesday (a bit cooler), a slight (20%) chance of showers Wednesday night,
• Then mostly cloudy with a good (50%) chance of showers and a bit cooler Thursday.
• highs 58-52 lows 42-40. (seasonal averages high 56 low 37)

 

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Forecast for Roseburg:

• Partly cloudy this evening, increasing clouds to mostly cloudy late tonight,
• Mostly cloudy with a slight a slight (20%) chance of AM rain, a bit warmer Friday with rain in the afternoon (0.10 in. of rain possible), a good (50%) chance of evening rain, rain late Friday night (0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with rain (0.25 in. of rain possible) Saturday (snow level 3,500 ft.), a slight (20%) chance of evening showers, then mostly clear and colder at night,
• Sunny in the AM, partly cloudy and a bit warmer Sunday afternoon, just mostly cloudy Sunday night.
• lows 42-49 cooling to 37 Saturday night warming to 42 Sunday night highs 60-65 cooling back to 60 Sunday.
• Mostly cloudy with a (30%) chance of showers and a bit warmer Monday, rain likely (70%) at night,
• Mostly cloudy with a (40%) chance of rain and a bit cooler Tuesday, cloudy with a good (50%) chance of rain Tuesday night and Wednesday (a bit cooler) , a (40%) chance of showers Wednesday night,
• Then mostly cloudy and a bit cooler with showers likely (70%) Thursday.
• highs 62-52 lows 47-40. (seasonal averages high 58 low 39)

 

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

• Partly cloudy this evening, mostly cloudy late tonight,
• Mostly cloudy with a (30%) chance rain Friday AM, rain and a bit warmer in the afternoon (0.25 in. of rain possible), evening rain likely (70%), rain late Friday night (0.25 in. of rain possible) and breezy (Wind: S 15-25 mph at the shore while S 10-15 mph inland),
• AM coastal showers with coastal showers likely (70%) Saturday afternoon while inland showers and a bit cooler inland Saturday (0.50 in. of rain possible), partly cloudy in the evening, becoming mostly clear and colder late at night,
• Sunny Sunday AM, partly cloudy and a bit warmer in the afternoon, then mostly cloudy Sunday night.
• lows 40-52 cooling to 38 Saturday night highs 59-53 warming to 57 Sunday.
• Mostly cloudy with a (40%) chance of showers and a bit warmer Monday, rain likely (70%) Monday night through Tuesday evening, showers likely (70%) late at night,
• Cloudy and a bit cooler with a (40%) chance of showers Wednesday and Wednesday night,
• Then showers likely (70% Thursday.
• highs 58-53 lows 49-44. (seasonal averages high 54 low 42)

 

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Partly cloudy with a slight (20%) chance of rain and snow Friday AM, rain likely (70%) and a bit warmer in the afternoon (0.10 in. of rain possible), cloudy with a good (50%) chance of rain Friday night,
• Mostly cloudy with rain Saturday AM, rain and snow showers and a bit cooer in the afternoon, a (30%) chance of evening showers, partly cloudy and much colder Saturday night,
• Then partly cloudy and a bit warmer Sunday and at night.
• free air freezing level 5,500 ft. rising to 6,000 ft. late tonight, snow level 5,500 ft. rising to 8,000 ft. Friday afternoon, 7,500 ft. Friday night, 7,000 ft. falling to 5,000 ft. Saturday afternoon, 3,500 ft. Saturday night, free air freezing level 4,000 ft. rising to 5,000 ft. Sunday, then 6,500 ft. Sunday night.
• lows 28-39 cooling to 23 Saturday night warming to 30 Sunday night highs 48-44 warming back to 48 Sunday.
• A mix of clouds and sun and a bit warmer Monday, increasing clouds to mostly cloudy with a (30%) chance of showers Monday night,
• A good (50%) chance of rain and snow showers and a bit warmer Tuesday, a (40%) chance of rain and snow showers at night,
• Mostly cloudy with a good (50%) chance of rain and snow showers and colder Wednesday, a slight (20%) chance of rain and snow showers Wednesday night,
• Then mostly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Thursday.
• free air freezing level 7,000 ft. Monday, snow level 7,000 ft. Monday night, 6,500 ft. Tuesday, 5,500 ft. Tuesday night, 4,500 ft. Wednesday and Wednesday night, then 4,000 ft. Thursday.
• highs 50-37 lows 34-28.

 

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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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