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Check out my latest Eugene Daily News Weather Or Not Column I See Lights In The Sky, But It’s Not A UFO.

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And don’t forget my latest feature story in the continuing series on service club organizations called Truly Altrusa.
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Here is my new weekly weather quiz question. What is “The National Climatic Data Center?” 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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Upper level Low Pressure (Shaded “U” shape with blue arrows) has replaced the high pressure returning the much cooler onshore airflow. The low will keep us in clouds sending disturbances our way until a High Pressure Ridge (Shaded “Arch” shape with blue arrows) takes over for Wednesday and Thursday.

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Advisories: None at this time.

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Air Quality Index: Eugene-Springfield: The Air Quality Index is 27 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 6 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 (8)

Trees……….High (183)

Last Counted: 5/2/14

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:

• AM showers, showers and a slight (20%) chance of thunderstorms this afternoon (0.25 in. of rain possible, more in storms), a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, partly cloudy with a slight (20%) chance of showers late tonight (0.25 in. of rain possible, more in storms),
• A mix of clouds and sun with a slight (20%) chance of showers Tuesday, partly cloudy with a slight (20%) chance of showers in the evening (under 0.10 in. of rain possible), partly cloudy and cooler at night,
• Then partly cloudy Wednesday and Wednesday night.
• highs 60-64 lows 46-40 warming to 42 Wednesday night.
• Mostly cloudy with a good (50%) chance of rain Thursday, rain likely (60%) Thursday night,
• Mostly cloudy with a good (50%) chance of rain Friday and Friday night,
• A good (50%) chance of showers Saturday and Saturday night,
• Then mostly cloudy with a (40%) chance of showers Sunday.
• highs 64-66 lows near 46. (seasonal averages high 65 low 42).

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Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy with AM showers, showers and a slight (20%) chance of thunderstorms this afternoon and evening (0.10 in. of rain possible), mostly cloudy with a (40%) chance of showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Tuesday AM, just mostly cloudy in the afternoon and evening, partly cloudy at night,
• Partly cloudy Wednesday and Wednesday night.
• highs 62-68 lows 45-42 warming to 45 Wednesday night.
• Mostly cloudy with a slight (20%) chance of showers Thursday AM, a slight (20%) chance of rain in the afternoon, rain likely (60%) Thursday night,
• A (40%) chance of rain Friday, then mostly cloudy with a (30%) chance of showers Friday night through Sunday.
• highs 72-64 warming to near 70 Sunday lows 48-45. (seasonal averages high 68 low 45)

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

• Mostly cloudy with showers today, a (40%) chance of showers tonight (0.15 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of inland AM showers while mostly cloudy with a slight (20%) chance of AM inland showers Tuesday (under 0.10 in. of rain possible), partly cloudy in the afternoon, just mostly cloudy at night.
• highs near 58 lows near 46.
• Mostly cloudy Wednesday AM, partly cloudy in the afternoon and Wednesday evening, mostly cloudy late at night,
• A (40%) chance of AM showers Thursday, mostly cloudy with rain likely (60%) Thursday night,
• A good (50%) chance of rain Friday, then mostly cloudy with a (40%) chance of showers Friday night through Sunday.
• highs 62-57 warming to 62 Saturday cooling to 58 Sunday lows near 50. (seasonal averages high 58 low 45).

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Forecast for the Cascades in Lane County:

• Rain and snow showers with a slight (20%) chance of thunderstorms this afternoon (0.25 in. of rain possible, 1-2 in. of snow possible), cloudy with rain and snow showers likely (60%) and a slight (20%) chance of thunderstorms this evening, a good (50%) chance of rain and snow showers late tonight (0.10 in. of rain possible, 1 in. of snow possible),
• A mix of clouds and sun with a (30%) chance of rain and snow showers Tuesday, partly cloudy with a slight (20%) chance of rain and snow showers in the evening, just partly cloudy at night,
• Partly cloudy Wednesday and Wednesday night.
• snow level 5,000 ft. today and tonight, 4,500 ft. Tuesday, 5,500 ft. at night, free air freezing level 6,500 ft. Wednesday, then 7,500 ft. at night.
• highs 47-42 warming to 48 Wednesday lows near 32.
• Mostly cloudy with a good (50%) chance of rain Thursday afternoon, rain likely (70%) Thursday night,
• Then mostly cloudy with rain likely Friday, then a good (50%) chance of rain Friday night,
• Then mostly cloudy with a good (50%) chance of showers Saturday through Sunday.
• snow level 6,500 ft. Thursday, 7,500 ft. at night, 6,500 ft. Friday, 6,000 ft. at night, 5,500 ft. Saturday, 6,000 ft. at night, then 7,000 ft. Sunday.
• highs 54-52 lows 33-36.

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**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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