Here is my weekly weather quiz question. What is “AWIPS?” The first person to post the correct answer as a comment on this page 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 approaching the coast and will begin the cool down. The graphics for days 1-3 show the next frontal system that will approach Oregon between today and Wednesday. The graphics for days 3-7 show that no frontal systems will move through the Pacific Northwest Thursday through next Monday. The weather is looking perfect for the Prefontaine Classic this Saturday and the Pre-Prefontaine events on Friday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 40 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 26 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 24 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 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:

• Sunny and a bit cooler today, mostly clear this evening, mostly cloudy late tonight,
• A mix of clouds and sun and cooler Wednesday, partly cloudy in the evening, mostly cloudy late Wednesday night,
• Partly cloudy and a bit warmer Thursday and at night.
• highs 83-68 warming to 72 Thursday lows 48-45 cooling back to 48 Thursday night.
• A mix of clouds and sun in the AM, sunny and a bit warmer Friday afternoon, clear Friday night,
• Then sunny Saturday through Monday (Memorial Day), clear each night,
• highs 78-80 lows 50-48. (seasonal averages high 68 low 45)

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Eugene-Springfield Pollen Count:

Grass………. Moderate (11)

Trees………. Moderate (71)

Last Counted: 5/19/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Sunny and a bit cooler today, mostly clear this evening, partly cloudy late tonight,
• Mostly cloudy with areas of fog Wednesday AM, sunny and much cooler in the afternoon, partly cloudy in the evening, mostly clear late Wednesday night,
• Mostly sunny and a bit warmer Thursday, then mostly clear at night.
• highs 90-73 warming to 75 Thursday lows 52-46 warming to 50 Thursday night.
• Sunny and a bit warmer Friday and Saturday (a bit cooler), clear at night,
• Then mostly sunny and a bit warmer Sunday and Monday (Memorial Day), mostly clear Sunday night.
• highs 78-84 lows 52-54. (seasonal averages high 71 low 48)

 

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

• Partly cloudy this AM with patchy coastal fog, mostly sunny but a bit cooler this afternoon, partly cloudy this evening, mostly cloudy tonight with areas of coastal fog late tonight,
• Mostly cloudy with areas of AM fog, mostly sunny and a bit cooler Wednesday afternoon, just partly cloudy at night through Thursday night.
• highs 62-60 warming back to 62 Thursday lows 50-48 warming back to 50 Thursday night.
• Partly cloudy in the AM, sunny and just a bit warmer Friday afternoon and Saturday (a bit cooler),  partly cloudy at night,
• Partly cloudy Sunday, mostly clear Sunday night,
• Then mostly sunny and a bit warmer Monday (Memorial Day).
• highs 65-63 warming to 66 Monday lows near 50. (seasonal averages high 60 low 48)

 

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Forecast for the Cascades in Lane County:

• Sunny and a bit cooler today, partly cloudy and colder tonight,
• Mostly sunny and cooler Wednesday with a slight (20%) chance of showers in the afternoon, partly cloudy at night,
• Partly cloudy Thursday AM, mostly sunny and cooler in the afternoon, partly cloudy with a slight (20%) chance of showers in the evening, just partly cloudy late Thursday night.
• free air freezing level 15,000 ft. today, 14,000 ft. falling to 12,000 ft. tonight, snow level above 8,000 ft. Wednesday afternoon, free air freezing level 10,000 ft. falling to 9,000 ft late Wednesday night, 9,000 ft. Thursday, snow level 8,000 ft. Thursday evening, then free air freezing level 9,000 ft. late Thursday night.
• highs 76-59 warming to 62 Thursday lows 39-35 warming to 37 Thursday night.
• Partly cloudy and a bit warmer Friday through Saturday AM, mostly sunny in the afternoon, mostly clear Saturday night,
• Mostly sunny and a bit warmer Sunday, mostly clear at night,
• Mostly sunny Monday AM, then partly cloudy with a slight (20%) chance of showers Monday afternoon (Memorial Day).
• free air freezing level 9,000 ft. rising to 10,000 ft. Friday afternoon, 10,000 ft. rising to 11,000 ft. late Friday night, 11,000 ft. Saturday afternoon, 11,000 ft. rising to 12,000 ft. Saturday night, 12,000 ft. Sunday through Monday AM, snow level 8,000 ft. Monday afternoon.
• highs 69-72 lows 38-42 cooling back to 38 Sunday night.

 

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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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