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.

________________

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is moving through for a drastic cool down. The graphics for days 1-3 show the cold front that moved through Oregon. The graphics for days 3-7 show that no frontal systems will move through the Pacific Northwest Thursday through next Wednesday. The weather is looking perfect for the Prefontaine Classic this Saturday and the Pre-Prefontaine events on Friday. The whole long Memorial Day Weekend is looking bright and dry.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 2 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

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)

________________

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.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy this evening, mostly cloudy late tonight and Thursday AM, partly cloudy and a bit warmer in the afternoon, mostly clear Thursday night,
• Mostly sunny and a bit warmer Friday, clear at night,
• Sunny and a bit warmer Saturday, then clear at night.
• lows 43-52 highs 72-82.
• Sunny and a bit warmer Sunday, clear at night,
• Mostly sunny and a bit cooler Monday (Memorial Day) and Tuesday, partly cloudy both nights,
• Mostly sunny Wednesday AM, then partly cloudy and a bit cooler in the afternoon.
• highs 86-77 lows 53-49. (seasonal averages high 69 low 45)

_____

 

Eugene-Springfield Pollen Count:

Grass………. High (145)

Trees………. High (116)

Last Counted: 5/24/17

Data Courtesy of Oregon Allergy Associates.

_________________

 

Forecast for Roseburg:

• Clear tonight,
• Mostly cloudy in the AM, sunny and a bit warmer Thursday afternoon, clear at night,
• Then sunny and a bit warmer Friday and Saturday, clear Friday night, mostly clear Saturday night.
• lows 48-54 highs 75-85.
• Mostly sunny Sunday, mostly clear Sunday night,
• Mostly sunny with a slight (20%) chance of thunderstorms and a bit cooler Monday afternoon (Memorial Day), partly with a slight (20%) chance of thunderstorms Monday night through Wednesday (a bit cooler).
• highs 85-80 lows near 54. (seasonal averages high 72 low 49)

 

_____________________

 

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

• Clear tonight and breezy (Wind: N 15-25 mph at the shore decreasing to N 10-15 mph late tonight 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,
• Mostly cloudy at the shore in the AM and partly cloudy and a bit warmer Friday afternoon while sunny and a bit warmer inland, clear Friday night with patchy coastal fog late,
• Sunny and a bit cooler Saturday, then mostly clear Saturday night.
• lows 48-52 highs 60-64 cooling back to 60 Saturday.
• Mostly sunny Sunday, mostly clear Sunday night,
• Sunny and a bit cooler Monday (Memorial Day), partly cloudy at night through Tuesday night,
• Then partly cloudy Wednesday with a slight (20%) chance of afternoon thunderstorms.
• highs 60-63 lows 52-50 warming back to 52 Tuesday night. (seasonal averages high 60 low 48)

 

________________

 

Forecast for the Cascades in Lane County:

• Partly cloudy tonight,
• Mostly sunny in the AM, partly cloudy and a bit warmer Thursday with a slight (20%) chance of thunderstorms near the crest in the afternoon and evening, just partly cloudy late Thursday night,
• Then mostly sunny and a bit warmer Friday and Saturday, mostly clear both nights,
• free air freezing level 11,000 ft. falling to 9,000 ft. tonight, 9,000 ft. Thursday afternoon, 10,000 ft. Thursday night, 11,000 ft. Friday, 12,000 ft. late Friday night, then 13,000 ft. Saturday and Saturday night.
• lows 34-38 highs 63-75.
• Mostly sunny in the AM, partly cloudy and a bit warmer with a slight (20%) chance of showers and thunderstorms Sunday and Monday (Memorial Day) afternoon and evening, partly cloudy both nights,
• Mostly sunny Tuesday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon and evening,  then just partly cloudy and a bit cooler Tuesday night and Wednesday.
• snow level above 8,000 ft. Sunday and Sunday evening, free air freezing level 13,000 late Sunday night, 13,000 ft. Monday morning, snow level above 8,000 ft. Monday afternoon, free air freezing level 13,000 ft. late Monday night and Tuesday AM, snow level above 8,000 ft. Tuesday afternoon, snow level above 8,000 ft. Tuesday evening, free air freezing level 13,000 ft. Tuesday night, then 12,000 ft. Wednesday.
• highs 72-75 lows 40-45.

 

________________

**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.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________