Here is my weekly weather quiz question. What is a “Sling Psychrometer?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

Upper level low pressure (Shaded “U” shape with blue arrows) keeps adding just enough moisture to the mix. No major surface storms are in our near future, but there will be a slight chance of drizzle or showers through Sunday evening.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 37 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 41 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories: None At This Time.

________________

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

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

• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers this afternoon, mostly cloudy with a slight (20%) chance of evening showers, partly cloudy late tonight,
• AM clouds, a mix of clouds and sun and a bit warmer Saturday, partly cloudy Saturday night,
• AM clouds, a mix of clouds and sun and a bit warmer Sunday, partly cloudy Sunday night.
• highs 66-74 lows 45-49 cooling to 46 Sunday night.
• AM clouds, mostly sunny and a bit warmer Monday (Memorial Day), mostly clear Monday night,
• Mostly sunny and a bit warmer Tuesday, partly cloudy Tuesday night,
• A mix of clouds an sun and a bit warmer Wednesday, partly cloudy at night,
• Then partly cloudy with a slight (20%) chance of showers and cooler Thursday afternoon.
• highs 79-88 cooling to 76 Thursday lows 44-52. (seasonal averages high 69 low 45.)

_____

Eugene-Springfield Pollen Count:

Grass………. High (140)

Trees……….  Low (7)

Last Counted: 5/27/16

Data Courtesy of Oregon Allergy Associates.

___________________

Forecast for Roseburg:

• Sunny this afternoon, mostly clear this evening, partly cloudy late tonight,
• Partly cloudy in the AM, mostly sunny and a bit warmer Saturday afternoon, mostly clear in the evening,  then partly cloudy and a bit warmer Saturday night through Sunday night.
• highs 69-77 lows 47-50.
• Partly cloudy and a bit warmer Monday (Memorial Day), most through Tuesday night,
• Partly cloudy with a slight (20%) chance of thunderstorms and a bit warmer Wednesday and Wednesday night,
• Partly cloudy with a slight (20%) chance of AM showers, then mostly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Thursday afternoon.
• highs 84-93 cooling to 87 Thursday lows 50-54. (seasonal averages high 72 low 49).

________________

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

• Sunny this afternoon, mostly clear this evening, then partly cloudy late tonight through Sunday night.
• highs 60-63 lows 49-52.
• Just partly cloudy and a bit warmer Monday (Memorial Day), mostly clear at night,
• Mostly sunny Tuesday, partly cloudy Tuesday  night through through Thursday AM, then mostly cloudy with a slight (20%) chance of thunderstorms Thursday afternoon.
• highs 67-74 cooling back to 67 Thursday lows 50-54. (seasonal averages high 60 low 49)

________________

Forecast for the Cascades in Lane County:

• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers this afternoon, partly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late tonight,
• AM clouds, a mix of clouds and sun and a bit warmer Saturday afternoon, then partly cloudy Saturday night through Sunday night (a bit warmer Sunday).
• snow level 5,000 ft. today, free air freezing level 6,000 ft. tonight, free air freezing level rising to 9,000 ft. Saturday, 10,000 ft. falling to 7,500 ft. late Saturday night, 10,000 ft. Sunday and Sunday night.
• highs 50-60 lows 33-36 cooling back to 33 Sunday night.
• Partly cloudy in the AM, mostly sunny and a bit warmer Monday (Memorial Day), mostly clear Monday night,
• Mostly sunny and a bit warmer Tuesday, mostly clear at night,
• Mostly sunny and a bit warmer Wednesday afternoon, partly cloudy Wednesday  night,
• A mix of clouds and sun with a slight (20%) chance of showers and a bit cooler Thursday afternoon.
• free air freezing level 10,000 ft. Monday, 11,000 ft. Monday night, 12,000 ft. Tuesday, 13,000 ft. Tuesday night, 12,000 ft. Wednesday and Wednesday night, then snow level above 8,000 ft. Thursday.
• highs 66-77 cooling to 72 Thursday lows 35-50 cooling to 44 Wednesday night.

________________

**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.

________________