_________________

Check out my latest Eugene Daily News Weather Or Not Column They Don’t Always Obey The Rules.

_____

And don’t forget my latest feature story in the continuing series on service club organizations called This Moose Isn’t Named Bullwinkle.

_____

And my feature article about Contractors Electric called Is The Ground Wire The White One Or The Black One?

__________________

Here is my weekly weather quiz question for the last time. What is a “temperature inversion?”  Here is the correct answer. A Temperature Inversion (surface-based or elevated) : a layer of the atmosphere in which air temperature increases with height. When the layer’s base is at the surface, the layer is called a surface-based temperature inversion; when the base of the layer is above the surface, the layer is called an elevated temperature inversion. I’ll have a new weekly weather quiz question for you starting Monday. 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.

________________

An upper level low pressure trough that has been controlling our weather is moving to the south away from us. Another low will take over but, I was expecting a break through the Memorial Day Holiday weekend with increasing sunshine. The low is moving slower than I expected bringing enough marine air our way to keep us in clouds with a chance of a few sun breaks.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 21 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 7 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 25 in the Good category measuring Ozone.

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

________________

Advisories:

• A HEALTH ADVISORY HAS BEEN CANCELLED FOR DETROIT LAKE LOCATED 46 MILES SOUTHEAST OF SALEM ON THE NORTH SANTIAM RIVER IN LINN AND MARION COUNTIES. WATER MONITORING ON MAY 18, 2015 HAS CONFIRMED THE TOXIN CONCENTRATIONS HAVE DROPPED TO A SAFE LEVEL.

________________

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

• Cloudy this AM with some drizzle, mostly cloudy this afternoon (some sun peeks possible), partly cloudy this evening, cloudy late tonight and Sunday AM, mostly cloudy and a bit warmer with possible sun breaks in the afternoon, mostly cloudy Sunday night,
• Mostly cloudy, again maybe a sun break, a bit warmer Monday (Memorial Day), then partly cloudy at night.
• highs 63-70 lows 50-47.
• AM clouds, partly cloudy Tuesday and Tuesday night,
• A mix of clouds and sun and a bit warmer Wednesday, partly cloudy Wednesday night through Thursday night,
• Then a mix of clouds and sun and a bit warmer Friday.
• highs 72-80 lows 46-49. (seasonal averages high 68 low 45)
  ___

Eugene-Springfield Pollen Count

Trees: Moderate- 27

Grass: High- 23

Reading as of: 5/23/15

Data courtesy of Oregon Allergy Associates.

_________________

Forecast for the Umpqua Basin including Roseburg:

• Cloudy today, mostly cloudy tonight and Sunday, partly cloudy in the evening, mostly cloudy late Sunday night,
• Mostly cloudy Monday AM (Memorial Day), partly cloudy at night.
• highs 72-79 lows 50-48.
• Partly cloudy Tuesday through Friday.
• highs 77-80 lows 48-50. (seasonal averages high 71 low 48)
  ________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with a slight (20%) AM showers, just mostly cloudy this afternoon through Sunday, partly cloudy Sunday night,
• AM clouds, partly cloudy Monday (Memorial Day) and Monday night.
• highs 55-63 lows 52-49.
• Partly cloudy Tuesday through Thursday night,
• Then mostly cloudy Friday AM and partly cloudy in the afternoon.
• highs 62-60 lows near 50. (seasonal averages high 60 low 48)

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with a (30%) chance of showers today, a slight (20%) chance of showers this evening, mostly cloudy late tonight,
• Cloudy Sunday AM, a mix of clouds and sun in the afternoon, mostly cloudy Sunday night and Monday AM (Memorial Day), then partly cloudy Monday afternoon and at night.
• snow level 8,000 ft. today and tonight, free air freezing level 11,000 ft. Sunday, 12,000 ft. Sunday night, 9,000 ft. Monday, then 10,000 ft. Monday night.
• highs 52-60 lows near 38.
• Partly cloudy with a slight (20%) chance of showers Tuesday afternoon and in the evening, just partly cloudy late Tuesday night through Wednesday night,
• A mix of clouds and sun with a slight (20%) chance of afternoon showers Thursday and Friday, partly cloudy with a slight (20%) chance of showers Thursday evening.
• snow level above 8,000 ft. Tuesday and Tuesday night, free air freezing level 10,000 ft. Wednesday and Wednesday night, then snow level above 8,000 ft. Thursday through Friday.
• highs 57-62 cooling to 58 Friday lows 38-43.

________________

**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.

________________