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 move into Oregon Wednesday. The graphics for days 3-7 show that no frontal systems will move through the Pacific Northwest Thursday through next Tuesday. 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 28 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 24 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 19 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:

• Mostly clear this evening, mostly cloudy late tonight,
• Mostly cloudy and much cooler Wednesday, partly cloudy in the evening, mostly cloudy late Wednesday night and Thursday AM, partly cloudy and a bit warmer in the afternoon and Thursday night,
• Partly cloudy in the AM, mostly sunny and a bit warmer Friday afternoon, then clear at night.
• lows 45-43 warming to 50 Friday night highs 66-80.
• Sunny and a bit warmer Saturday, Sunday, and Monday (Memorial Day), clear each night,
• Then mostly sunny and a bit cooler Tuesday.
• highs 82-85 cooling back to 82 Tuesday lows near 52. (seasonal averages high 69 low 45)

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Eugene-Springfield Pollen Count:

Grass………. High (93)

Trees………. Moderate (63)

Last Counted: 5/23/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Clear this evening, partly cloudy late tonight,
• Mostly cloudy Wednesday AM, sunny and much cooler in the afternoon, mostly clear late Wednesday night,
• Partly cloudy in the AM, sunny and a bit warmer Thursday afternoon, mostly clear at night,
• Sunny and a bit warmer Friday, then clear Friday night.
• lows 52-46 warming to 50 Thursday night highs 73-83.
• Sunny and a bit warmer Saturday, mostly clear at night,
• Mostly sunny and a bit warmer Sunday and Monday (Memorial Day), mostly clear Sunday night,
• Partly cloudy Tuesday AM, then mostly sunny and a bit cooler with a slight (20%) chance of thunderstorms in the afternoon.
• highs near 85 lows near 55. (seasonal averages high 72 low 49)

 

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

• Mostly cloudy with occasional coastal rain or drizzle tonight while clear this evening inland and mostly cloudy with occasional inland rain or drizzle late tonight,
• Mostly cloudy in the AM at the shore and mostly sunny and a bit cooler Wednesday afternoon while occasional AM inland rain or drizzle and mostly sunny in the afternoon, clear in the evening, just partly cloudy late Wednesday night and breezy (Wind: N 15-25 mph at the shore decreasing to N 10-15 mph late at night while N 10-20 mph inland decreasing to N 5-10 mph inland late),
• Partly cloudy in the AM, sunny and just a bit warmer Thursday afternoon, clear in the evening, mostly cloudy late at night,
• Partly cloudy and a bit warmer Friday, then clear Friday night.
• lows 52-48 warming back to 52 Friday night highs 60-67.
• Sunny and a bit cooler Saturday,  partly cloudy Saturday night and Sunday (a bit warmer), mostly clear Sunday night,
• Mostly sunny and a bit warmer Monday (Memorial Day) and Tuesday, mostly clear Monday night.
• highs 62-67 lows near 52. (seasonal averages high 60 low 48)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy and colder tonight,
• Mostly cloudy in the AM, sunny and cooler Wednesday with a slight (20%) chance of showers in the afternoon, partly cloudy at night,
• A mix of clouds and sun and warmer Thursday, partly cloudy Thursday night,
• Mostly sunny and a bit warmer Friday, mostly clear at night.
• free air freezing level 13,000 ft. late tonight, 10,000 ft. Wednesday afternoon, free air freezing level 10,000 ft. Wednesday night, 9,000 ft. Thursday, 10,000 ft. Thursday night and Friday, then 11,000 ft. rising to 12,000 ft. late Friday night.
• lows 38-34 warming back to 38 Friday night highs 58-69.
• Mostly sunny and a bit warmer Saturday, mostly clear Saturday night,
• Mostly sunny in the AM, partly cloudy and a bit warmer Sunday afternoon, partly cloudy at night,
• Mostly sunny Monday AM, then partly cloudy with a slight (20%) chance of showers and thunderstorms Monday afternoon (Memorial Day), partly cloudy with a slight (20%) chance  of showers and thunderstorms in the evening,  then just partly cloudy Monday night and Tuesday.
• free air freezing level 12,000 ft. Saturday, 13,000 ft. Saturday night through Sunday night, 13,000 ft. Monday morning, snow level above 8,000 ft. Monday afternoon, then free air freezing level 13,000 ft. Monday night and Tuesday.
• highs 72-75 lows 40-45.

 

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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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