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 today 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 15 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 12 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 6 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:

• Mostly clear tonight,
• Mostly sunny and a bit warmer Friday, Saturday, and Sunday, clear Friday night and Saturday night and Sunday evening, partly cloudy late Sunday night.
• lows 45-52 highs 82-84.
• Partly cloudy in the AM, mostly sunny Monday afternoon (Memorial Day), then partly cloudy and a bit cooler Monday night through Tuesday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Wednesday afternoon, mostly cloudy with a slight (20%) chance of showers at night,
• A mix of clouds and sun Thursday with a slight (20%) chance of AM showers, then a (30%) chance of showers and a bit cooler Thursday afternoon.
• highs 82-72 lows near 50. (seasonal averages high 69 low 45)

_____

 

Eugene-Springfield Pollen Count:

Grass………. High (114)

Trees………. Moderate (24)

Last Counted: 5/25/17

Data Courtesy of Oregon Allergy Associates.

_________________

 

Forecast for Roseburg:

• Clear tonight,
• Sunny and a bit warmer Friday and Saturday, clear both nights,
• Sunny and a bit warmer Sunday, mostly clear in the evening, then partly cloudy Sunday night.
• lows 49-55 highs near 85.
• Partly cloudy with a slight (20%) chance of thunderstorms and a bit cooler Monday (Memorial Day through Tuesday night,
• Partly cloudy Wednesday with a slight (20%) chance of showers in the afternoon, then partly cloudy with a (30%) chance of showers at night and Thursday (a bit cooler).
• highs 83-74 lows 55-52. (seasonal averages high 72 low 49)

 

_____________________

 

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

• Clear this evening and mostly cloudy late tonight at the shore while clear inland tonight,
• Mostly cloudy in the AM, mostly sunny and a bit warmer Friday afternoon, mostly clear in the evening at the shore and mostly cloudy patchy coastal fog late Friday night while clear inland at night,
• Mostly cloudy with patchy AM coastal fog and partly cloudy and a bit cooler in the afternoon at the shore while sunny and a bit cooler inland Saturday, partly cloudy in the evening at the shore and mostly cloudy late at night while  clear inland Saturday night,
• Mostly cloudy in the AM, sunny and a bit cooler Sunday afternoon, clear in the evening, then partly cloudy Sunday night.
• lows 50-52 highs 65-60.
• Partly cloudy Monday (Memorial Day), Tuesday (a bit warmer), and Wednesday, then partly cloudy with a (30%) chance of showers Wednesday night and Thursday (a bit cooler).
• highs 60-63 cooling to 59 Thursday lows near 52. (seasonal averages high 60 low 48)

 

________________

 

Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of showers this evening, just partly cloudy late tonight,
• Sunny and a bit warmer Friday and Saturday, mostly clear both nights,
• Mostly sunny and a bit warmer Sunday, then partly cloudy  Sunday night.
• snow level 8,000 ft. tonight, free air freezing level 9,000 ft. rising to 10,000 ft. Friday afternoon, 11,000 ft. late Friday night,  11,000 ft. rising to 12,000 ft. Saturday afternoon, 12,000 ft. Saturday night, 12,000 ft. rising to 13,000 ft. Sunday, then 13,000 ft. Sunday night.
• lows 37-43 highs 72-79.
• Mostly sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Monday (Memorial Day) afternoon and evening, just partly cloudy at night,
• Partly cloudy and a bit cooler Tuesday with a slight (20%) chance of showers and thunderstorms in the afternoon and evening,  partly cloudy with a slight (20%) chance of showers Tuesday night,
• Partly cloudy with a slight (20%) chance of AM showers, a slight (20%) chance of showers and thunderstorms and a bit cooler Wednesday afternoon, mostly cloudy with a slight (20%) chance of evening showers and thunderstorms, partly cloudy with a (%) chance of showers late Wednesday night,
• Then a mix of clouds and sun and a bit cooler with a (40%) chance of showers Thursday.
• free air freezing level  13,000 ft. Monday morning, snow level above 8,000 ft. Monday afternoon and Monday night, free air freezing level 13,000 ft. late Monday night and Tuesday AM, snow level above 8,000 ft. Tuesday afternoon through Thursday.
• highs 78-67 lows 43-40.

 

________________

**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.

________________