_________________

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 new weekly weather quiz question. What is a “temperature inversion?”  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 has been controlling our weather and will continue to do so for the workweek. The chance of showers will continue even though it will be quite low.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 36 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 34 in the Good category measuring Particulate Matter.

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

________________

Advisories:

• A HEALTH ADVISORY HAS BEEN ISSUED FOR DETROIT LAKE LOCATED 46 MILES SOUTHEAST OF SALEM ON THE NORTH SANTIAM RIVER IN LINN AND MARION COUNTIES. WATER MONITORING HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE AND THE TOXINS THEY PRODUCE. THESE TOXIN CONCENTRATIONS CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING OR INHALING WATER DROPLETS, AS WELL AS SKIN CONTACT WITH WATER, SHOULD BE AVOIDED. DRINKING WATER DIRECTLY FROM DETROIT RESERVOIR IS ESPECIALLY DANGEROUS AS THESE TOXINS CANNOT BE REMOVED BY BOILING, FILTERING, OR TREATING THE WATER WITH CAMPING-STYLE FILTERS. AN ANNOUNCEMENT WILL BE MADE WHEN IT BECOMES SAFE TO USE THE WATER AGAIN.

________________

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

• Cloudy with showers with a good (50%) chance of showers and a slight (20%) chance of thunderstorms this evening, a good (50%) chance of showers late tonight (0.25 in. of rain possible, more in storms),
• Cloudy with a good (50%) chance of showers Thursday (0.10 in. of rain possible), a slight (20%) chance of showers Thursday night (under 0.10 in. of rain possible),
• A (30%) chance of AM showers with areas of drizzle, a mix of clouds and sun Friday afternoon, partly cloudy Friday night, partly cloudy at night.
• A mix of clouds and sun Saturday, then partly cloudy Saturday night.
• lows 55-47 highs 68-65.
• A mix of clouds and sun with a slight (20%) chance of showers Sunday, partly cloudy with a slight (20%) chance of showers at night,
• Then a mix of clouds and sun and warmer Monday (Memorial Day), Tuesday, and Wednesday with partly cloudy nights.
• highs 69-75 lows near 48. (seasonal averages high 68 low 44)
  ___

Eugene-Springfield Pollen Count

Trees: Moderate- 65

Grass: High- 49

Reading as of: 5/19/15

Data courtesy of Oregon Allergy Associates.

_________________

Forecast for the Umpqua Basin including Roseburg:

• Cloudy with scattered showers likely (70%) and a slight (20%) chance of isolated thunderstorms this evening, increasing showers tonight (under 0.10 in. of rain possible (under 0.20 in. of rain possible),
• Cloudy with a (40%) chance of showers Thursday, a slight (20%) chance of thunderstorms in the evening, a slight (20%) chance of showers late Thursday night (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Friday, mostly clear in the evening, then just partly cloudy Friday night through Saturday night.
• lows 55-46 highs near 70.
• Partly cloudy with a slight (20%) chance of showers Sunday afternoon, a (30%) chance of showers at night,
• Partly cloudy Monday (Memorial Day), mostly cloudy Monday night,
• Then mostly cloudy with a slight (20%) chance of showers Tuesday and Wednesday, partly cloudy with a slight (20%) chance of showers Tuesday night.
• highs 70-75 lows near 46. (seasonal averages high 71 low 48)
  ________________

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

• Cloudy with scattered showers likely (70%) this evening increasing  late tonight (0.10 in. of rain possible),
• Cloudy with a (40%) chance of showers Thursday, a slight (20%) chance of showers in the evening (under 0.10 in. of rain possible),  just cloudy late Thursday night,
• Mostly cloudy Friday, then partly cloudy Friday night through Saturday night.
• lows 53-48 warming to 50 Saturday night highs near 60.
• Partly cloudy with a slight (20%) chance of showers Sunday and Sunday night,
• Partly cloudy Monday (Memorial Day), then  mostly cloudy Monday night through Wednesday.
• highs near 60 lows near 48. (seasonal averages high 59 low 48)

________________

Forecast for the Cascades in Lane County:

• Cloudy with showers and a slight (20%) chance of thunderstorms this evening, showers likely (70%) late tonight (0.25 in. of rain possible, more in storms),
• Cloudy with a slight (20%) chance of AM showers, showers likely (70%) with a slight (20%) chance of thunderstorms Thursday afternoon and evening, a slight (20%) chance of showers late at night,
• Mostly cloudy with a (40%) chance of AM showers, a (40%) chance of showers and a slight (20%) chance of thunderstorms Friday afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers Friday night,
• A mix of clouds and sun with a slight (20%) chance of showers Saturday, then partly cloudy with a slight (20%) chance of showers Saturday night.
• snow level above 8,000 ft. tonight through Friday night, then 8,000 ft. Saturday and Saturday night.
• lows 40-43 cooling to 36 highs 56-52.
• A mix of clouds and sun with a slight (20%) chance of showers Sunday, partly cloudy with a slight (20%) chance of showers at night,
• Partly cloudy Monday (Memorial Day), mostly cloudy with a slight (20%) chance of showers Monday night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Tuesday and Wednesday, partly cloudy with a slight (20%) chance of showers Tuesday night.
• snow level 7,500 ft. Sunday, above 8,000 ft. Sunday night, free air freezing level 10,000 ft. Monday, then snow level above 8,000 ft. Monday night through Wednesday.
• highs 57-60 cooling to 55 Wednesday lows near 36.

________________

**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.

________________