______________

Check out my latest Eugene Daily News Weather Or Not Column All “It” Was Supposed To Do Was Defoliate The Trees.

_____

And don’t forget my latest feature story in the continuing series on service club organizations called Oregon Has Two Kinds Of “Elks” Four Legged and Two Legged.

________________
No winner this week. Here is my weekly weather quiz question for the last time. What is a “ceilometer?”  Here is the correct answer. A Ceilometer is a device using a laser or other light source to determine the height of a cloud base. An optical ceilometer uses triangulation to determine the height of a spot of light projected onto the base of the cloud; a laser ceilometer determines the height by measuring the time required for a pulse of light to be scattered back from the cloud base. I’ll have a new weekly weather 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 (Shaded “U” shape) has been increasing onshore airflow bringing us rain.  A frontal system moved through the Pacific Northwest. Monday will be pretty much a copy of today.

________________

Advisories: None at This Time.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 23 in the Good category measuring Ozone at Delight Valley School, Saginaw. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 4 in the Good category measuring Particulate Matter at Willamette Activity Center, Oakridge. Data courtesy of Lane Regional Air Protection Agency (LRAPA)
________________
Eugene-Springfield Pollen Count:

Grass……….Moderate (14)

Trees……….Moderate (62)

Last Counted: 5/16/14

Data Courtesy of Oregon Allergy Associates.

________________

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

• Mostly cloudy with showers and a slight (20%) chance of isolated thunderstorms this evening (0.25 in. of rain possible), showers late tonight (0.25 in. of rain possible, more in storms),
• Mostly cloudy with a good (50%) chance of AM showers Monday, a good (50%) chance of showers with a slight (20%) chance thunderstorms in the afternoon and evening (0.15 in. of rain possible), just mostly cloudy late Monday night (under 0.10 in. of rain possible),
• Cloudy in the AM, a mix of clouds and sun Tuesday, partly cloudy in the evening, mostly cloudy Tuesday night and Wednesday AM, mostly sunny in the afternoon, then partly cloudy Wednesday night.
• lows 47-43 highs 66-72.
• Partly cloudy Thursday, mostly cloudy at night,
• A mix of clouds and sun with a slight (20%) chance of showers Friday, mostly cloudy with a slight (20%) chance of showers Friday night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Saturday and Sunday with partly cloudy and a slight (20%) chance of showers Saturday night.
• highs 70-75 cooling to 68 Saturday lows 44-49. (seasonal averages high 68 low 44).

________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy with showers this evening, showers likely (60%) late tonight (0.10 in. of rain possible),
• AM showers likely (60%), showers likely (70%) with a slight (20%) of thunderstorms Monday afternoon and evening (0.10 in. of rain possible, small hail possible), becoming partly cloudy late Monday night (under 0.10 in. of rain possible, small hail possible) through Wednesday night.
• lows 50-47 highs 68-74.
• Partly cloudy Thursday and Thursday night,
• Mostly cloudy with a slight (20%) chance of showers Friday and at night,
• Then partly cloudy with a slight (20%) chance of showers Saturday and Sunday and mostly cloudy with a slight (20%) chance of showers Saturday night.
• highs 83-75 lows near 49 (seasonal averages high 71 low 48)

_________________

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

• Mostly cloudy with coastal showers tonight while inland showers this evening and showers likely (70%) late tonight (0.20 in. of rain possible),
• AM coastal showers, showers likely (70%) with a slight (20%) chance of thunderstorms Monday afternoon while inland AM showers likely (70%) with showers and a slight (20%) chance of afternoon and evening thunderstorms while AM showers likely (60%) inland with showers and a slight (20%) chance of inland thunderstorms in the afternoon (0.15 in. of rain possible), mostly cloudy with a slight (20%) chance of coastal showers in the evening while a slight (20%) chance of thunderstorms inland, becoming partly cloudy late Monday night (under 0.10 in. of rain possible, small hail possible) through Wednesday night.
• lows 52-49 warming to 52 Wednesday night high 63-60 warming back to 63 Wednesday.
• Partly cloudy and warmer Thursday, mostly cloudy at night,
• Mostly cloudy with a slight (20%) chance of showers Friday and Friday night,
• Then partly cloudy with a slight (20%) chance of showers Saturday and Sunday and mostly cloudy with a slight (20%) chance of showers Saturday night.
• highs 70-67 lows 54-52. (seasonal averages high 59 low 47).

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with rain and snow showers and a slight (20%) chance of isolated thunderstorms this evening, rain and snow showers late tonight (0.25 in. of rain possible, 1-2 in. of snow possible),
• AM rain and snow showers likely (70%), rain and snow showers likely (70%) Monday with a slight (20%) chance of thunderstorms in the afternoon and evening, a slight (20%) chance of showers late Monday night (under 0.10 in. of rain possible, more in storms),
• A mix of clouds and sun and warmer with a slight (20%) chance of showers Tuesday, partly cloudy with a slight (20%) chance of showers at night,
• Then just partly cloudy Wednesday and Wednesday night.
• snow level  5,500 ft. tonight, 5,000 ft. Monday, 6,500 ft. Monday night, 7,500 ft. Tuesday,  above 8,000 ft. Tuesday night, free air freezing level 11,000 ft. Wednesday, then 12,000 ft. at night.
• lows 33-37 highs 50-60.
•  Partly cloudy Thursday and Thursday night,
• A mix of clouds and sun with a slight (20%) chance of showers Friday, partly cloudy with a slight (20%) chance of showers Friday evening, mostly cloudy with a slight (20%) chance of showers at night,
• Then partly cloudy with a slight (20%) chance of showers Saturday through Sunday.
• free air freezing level 11,000 ft. Thursday and Thursday night, snow level above 8,000 ft. Friday through Sunday.
• highs 67-60 lows 36-42.

**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 Eugene Daily News.com.