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

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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.

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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.

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A blocking High Pressure ridge (Shaded “Arch” shape with blue arrows) is slowly moving away from us and an upper level low (Shaded “U” shape). Our next chance for showers will be today when a front will approach the Pacific Northwest. It looks like there will be a chance for some showers today and a better chance Sunday in Florence for the Rhododendron Festival this weekend.

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Advisories: None at This Time.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 25 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 19 in the Good category measuring Particulate Matter at Willamette Activity Center, Oakridge. Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Eugene-Springfield Pollen Count:

Grass……….Moderate (14)

Trees……….Moderate (62)

Last Counted: 5/16/14

Data Courtesy of Oregon Allergy Associates.

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

• Mostly cloudy with a slight (20%) chance of showers this afternoon, a (40%) chance of evening showers (0.10 in. of rain possible), showers likely (60%) late tonight,
• Cloudy with a good (50%) chance of AM showers, showers likely (70%) Sunday with a slight (20%) chance of thunderstorms in the afternoon and evening, a slight (20%) of showers late at night,
• Mostly cloudy with AM showers likely (60%) Monday, a (30%) chance of showers with a slight (20%) chance thunderstorms in the afternoon and evening, a slight (20%) showers Monday night.
• highs 66-60 warming to 64 Monday lows 48-46.
• A mix of clouds and sun with a slight (20%) chance of showers Tuesday, partly cloudy Tuesday night through Thursday night,
• Then a slight (20%) chance of showers Friday.
• highs 67-75 cooling to 72 Friday lows 44-47. (seasonal averages high 67 low 44).

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Forecast for the Umpqua Basin including Roseburg:

• Cloudy this AM, partly cloudy with a slight (20%) chance of showers this afternoon, mostly cloudy with a (40%) chance of showers  tonight,
• AM showers likely (60%), showers and a slight (20%) chance of thunderstorms Sunday afternoon and evening (small hail possible), showers late Sunday night,
• Showers likely (60%) with a slight (20%) of thunderstorms Monday AM, showers and a slight (20%) chance of thunderstorms in the afternoon and evening, mostly cloudy with a slight (20%) chance of showers late Monday night,
• highs 73-64 lows near 48.
• Mostly cloudy with a slight (20%) chance of showers Tuesday, just partly cloudy Tuesday night,
• Partly cloudy Wednesday, mostly clear at night,
• Mostly sunny and warmer Thursday, mostly clear at night,
• Then partly cloudy with a slight (20%) chance of showers Friday.
• highs 70-80 cooling to 77 Friday lows near 46-48 (seasonal averages high 70 low 47)

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

• Mostly cloudy with a slight (20%) chance of coastal showers today while cloudy inland in the morning and partly cloudy a slight (20%) chance of afternoon inland showers, mostly cloudy with a good (50%) chance of evening showers, showers likely (60%) late tonight,
• Mostly cloudy with showers Sunday and Sunday night,
• Showers likely (70%) with a slight (20%) chance of thunderstorms Monday AM, showers and a slight (20%) chance of afternoon and evening thunderstorms, a slight (20%) chance of showers late Monday night.
• high 62-60 lows near 52.
• Mostly cloudy with a slight (20%) chance of showers Tuesday, just partly cloudy at night and Wednesday, mostly clear at night,
• Mostly sunny Thursday, partly cloudy at night,
• Then partly cloudy with a slight (20%) chance of showers Friday.
• highs 62-72 cooling to 68 Friday lows 48-50. (seasonal averages high 59 low 47).

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Forecast for the Cascades in Lane County:

• Cloudy this AM, partly cloudy this afternoon, mostly cloudy with a good (50%) chance of showers tonight (0.25 in. of rain possible),
• Mostly cloudy with rain and snow showers likely (60%) Sunday AM, rain and snow showers with a slight (20%) chance of thunderstorms in the afternoon and evening, rain and snow showers Sunday night,
• Rain and snow showers likely (70%) Monday with a slight (20%) chance of thunderstorms in the afternoon and evening, then a (30%) chance of showers late Monday night.
• snow level 7,500 ft. today, 6,000 ft. tonight, 5,000 ft. Sunday, 5,500 ft. Sunday night and Monday, then 6,000 ft. Monday night.
• highs 56-50 warming to 53 Monday lows 36-33.
• A mix of clouds and sun with a slight (20%) chance of showers Tuesday, partly cloudy with a slight (20%) chance of showers at night,
• Just partly cloudy Wednesday through Thursday, then partly cloudy with a slight (20%) chance of showers Thursday night and Friday.
• snow level 6,500 ft. Tuesday, snow level above 8,000 ft. at night, 10,000 ft. Wednesday, 11,000 ft.7,000 ft. Tuesday night, free air freezing level 10,000 ft. Wednesday, 11,000 ft. at night and Thursday then snow level above 8,000 ft. Thursday night and Friday.
• highs 54-65 cooling to 62 Friday lows 33-37.

**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.

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Get your local Eugene-Springfield and Lane County news on-line at Eugene Daily News.com.

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