Here is my weekly weather quiz question for the last time. What is “An Aquifuge?” Here is the correct answer.  An Aquifuge in hydrologic terms, a geologic formation which has no interconnected openings and cannot hold or transmit water. I will have a new weekly weather quiz question for you starting Monday. 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) has taken 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 and warming temperatures for Sunday. The graphic for days 1-3 shows the frontal system that moved through today. The graphic for days 3-7 shows the next complex frontal systems that will be moving through the Pacific Northwest next Tuesday and again Friday. 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 4 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 1 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 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:

• Partly cloudy and colder with patchy fog late tonight and Sunday AM, mostly sunny and a bit warmer in the  afternoon, partly cloudy in the evening, becoming mostly cloudy with a slight (20%) chance of showers late Sunday night (under 0.10 in. of rain possible),
• Mostly cloudy Monday with a good (50%) chance of AM rain, rain likely (70%) and a bit cooler Monday afternoon (0.25 in. of rain possible), rain at night (0.25 in. of rain possible),
• Mostly cloudy with AM showers likely (70%), showers likely (70%) and a bit warmer with a slight (20%) of thunderstorms Tuesday afternoon, then showers likely (70%) Tuesday night.
• lows 34-44 highs near 58.
• Mostly cloudy and a bit cooler with showers likely (70%) Wednesday, cloudy with a good (50%) chance of showers Wednesday night and Thursday, mostly cloudy with a with a (30%) chance of rain at night,
• Rain likely (70%) Friday, then showers likely (70%) Friday night and Saturday.
• highs near 55 lows 38-42. (seasonal averages high 57 low 37)

 

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Forecast for Roseburg:

• Mostly cloudy with a slight (20%) chance of evening showers, partly cloudy late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with patchy AM fog, partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday afternoon, mostly cloudy with a (30%) chance of evening showers, a (30%) chance of rain Sunday night (under 0.10 in. of rain possible),
• Cloudy with rain Monday (0.25 in. of rain possible) and at night (0.25 in. of rain possible),
• Mostly cloudy with AM showers likely (70%), showers with a slight (20%) chance of thunderstorms and a bit cooler Tuesday afternoon, showers likely (70%) with a slight (20%) chance of thunderstorms in the evening, then showers likely (70%) Tuesday night.
• lows 40-46 highs near 62.
• Mostly cloudy and a bit cooler with showers Wednesday, showers likely (70%) Wednesday night and Thursday, a good (50%) chance of rain Thursday night,
• Mostly cloudy with rain Friday, then showers likely (70%) Friday night and Saturday (a bit cooler ).
• highs 58-55 lows near 42. (seasonal averages high 58 low 40)

 

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

• Partly cloudy with patchy fog late tonight and Sunday AM, sunny and a bit cooler in the afternoon at the shore while a slight (20%) chance of inland afternoon showers and a bit cooler, partly cloudy with a slight (20%) chance of evening coastal showers and mostly cloudy with coastal rain likely (70%) late at night while mostly cloudy with a slight (20%) chance of inland evening showers and inland rain likely (70%) late Sunday night (0.10 in. of rain possible),
• Mostly cloudy with rain Monday (0.50 in. of rain possible) and at night (0.50 in. of rain possible),
• Mostly cloudy with showers likely (70%) with a slight (20%) chance of thunderstorms and breezy Tuesday and Tuesday night.
• lows 39-49 highs 58-56 warming back to 58 Tuesday.
• Mostly cloudy and a bit cooler with showers Wednesday, cloudy with a good 50(%) chance of showers Wednesday night,
• Cloudy with showers likely (70%) Thursday, rain likely (70%) at night,
• Mostly cloudy with rain Friday, then showers Friday night and Saturday.
• highs near 55 lows near 45. (seasonal averages high 54 low 42)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a good (50%) chance of rain and snow showers this evening, partly cloudy and much colder with a slight (20%) chance of rain and snow showers late tonight (0.10 in. of rain possible),
• Partly cloudy and a bit warmer Sunday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a good (50%) chance of showers late at night,
• Cloudy with a (40%) chance of rain Monday AM, rain likely (70%) and a bit cooler in the afternoon, rain Monday night,
• Mostly cloudy with AM showers likely (70%), rain likely (70%) with a slight (20%) chance of thunderstorms and a bit cooler Tuesday afternoon, then rain and snow showers likely (70%) at night.
• snow level 3,500 ft. tonight, free air freezing level 4,500 ft. rising to 6,500 ft. Sunday afternoon, snow level 7,000 ft. Sunday night through Monday night, then 5,500 ft. Tuesday and Tuesday night.
• lows 27-34 cooling to 29 Tuesday night highs 52-44.
• Mostly cloudy and a bit cooler with rain and snow showers Wednesday, rain and snow showers likely (70%) Wednesday night and Thursday (a bit warmer), a (30%) chance of rain and snow Thursday night,
• Mostly cloudy with rain and snow Friday and a bit warmer, then rain and snow showers Friday night and Saturday (a bit cooler).
• snow level 4,500 ft. Wednesday, 4,000 ft. Wednesday night, 3,500 ft. Thursday, 4,500 ft. Thursday night, 5,500 ft. Friday, then 5,000 ft. Friday night and Saturday.
• highs 38-42 cooling to 40 Saturday lows 27-29.

 

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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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