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Check out my latest Eugene Daily News Weather Or Not Column Can Satellites Really Find Contaminated Water?

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

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

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Here is my new weekly weather quiz question. What is a “Geosynchronous Satellite?” 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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An upper level ridge of high pressure (Shaded “Arch” shape with blue arrows)  returned the sunshine for your Sunday, but now frontal system pushed by an upper level low pressure trough (Shaded “U” shape with blue arrows) into Oregon today bringing back the rain. A high pressure ridge Shaded “Arch” shape with blue arrows) will take over midweek returning the sunshine and dry weather.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

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

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Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 6 PM THIS EVENING UNTIL 6 PM TUESDAY FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.

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

• Mostly cloudy with rain this evening, showers likely (70%) tonight (0.25 in. of rain possible),
• Showers likely (70%) Tuesday AM with a (40%) chance of thunderstorms, showers likely (70%) and cooler with a slight (20%) chance of thunderstorms Tuesday afternoon (0.25 in. of rain possible, more in storms, small hail possible), mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late Tuesday night (under 0.10 in. of rain possible),
• Patchy AM fog, a mix of clouds and sun Wednesday, partly cloudy with patchy fog late Wednesday night and Thursday AM, sunny and warmer in the afternoon, then mostly clear Thursday night.
• lows 38-35 warming to near 40 Thursday night highs 55-70.
• Partly cloudy Friday and Friday night,
• Mostly sunny Saturday and Sunday with mostly clear skies both nights,
• Then sunny Monday.
• highs 70-74 cooling to 72 Sunday night lows 40-42. (seasonal averages high 60 low 39)
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Eugene-Springfield Pollen Count:

Trees: Very High- 667

Grass: High- 0

Reading as of: 4/11/15

Data courtesy of Oregon Allergy Associates

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Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy with rain this evening, rain and snow showers late tonight (0.30 in. of rain possible, 1 in. of snow possible, snow level 3,000 ft. falling to 2,500 ft. late tonight),
• Mostly cloudy with rain and snow showers likely (70%) and a slight (20%) chance of thunderstorms Tuesday AM, a good (50%) chance of afternoon showers (0.10 in. of rain possible, snow level 2,500 ft. rising to 3,000 ft. in the afternoon), a slight (20%) chance of evening showers, patchy fog late Tuesday night,
• Patchy AM fog and low clouds, sunny and warmer Wednesday afternoon, mostly clear with patchy fog late at night and Thursday AM, sunny and warmer in the afternoon, then mostly clear Thursday night.
• lows 38-45 highs 54-72.
• Sunny Friday, mostly clear at night,
• Mostly sunny Saturday, mostly clear at night,
• Then sunny Sunday and Monday, clear Sunday night.
• highs 73-70 warming to 76 Sunday and Monday lows near 45. (seasonal averages high 62 low 42)

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

• Mostly cloudy with rain this evening, coastal showers likely (70%) with a slight (20%) chance of thunderstorms late tonight while inland showers and a slight (20%) chance of thunderstorms late tonight (0.30 in. of rain possible) and Tuesday AM, a good (50%) chance of afternoon showers (0.10 in. of rain possible), mostly cloudy Tuesday night with inland patchy fog late,
• Partly cloudy in the AM with patchy inland fog, sunny Wednesday, mostly clear at night,
• Mostly sunny Thursday, then mostly clear Thursday night.
• lows 43-40 warming to 48 Thursday night highs 54-62.
• Mostly sunny Friday and Saturday, mostly clear Friday night, clear Saturday night,
• Then sunny Sunday and Monday with clear skies Sunday night.
• highs 62-64 lows near 46. (seasonal averages high 55 low 43)

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Forecast for the Cascades in Lane County:

• Mostly cloudy with rain and snow this evening, snow showers late tonight (0.75 in. of rain possible, 3-7 in. of snow possible) and Tuesday AM, rain and snow showers in the afternoon (0.25 in. of rain possible, 1-3 in. of snow possible),  a good (50%) chance of rain and snow showers in the evening, a slight (20%) chance of rain and snow showers late Tuesday night,
• Partly cloudy and just a bit warmer Wednesday, mostly clear at night,
• Sunny Thursday, then mostly clear Thursday night.
• snow level 4,500 ft. falling to 2,500 ft. late tonight, at the surface Tuesday, 3,000 ft. Tuesday night, free air freezing level 4,000 ft. rising to 5,000 ft. Wednesday afternoon, 9,000 ft. Wednesday night, then 10,000 ft. Thursday and Thursday night.
• lows 26-23 warming to 34 Thursday night highs 36-60.
• Mostly sunny Friday, Saturday, Sunday and Monday with partly cloudy to mostly clear each night.
• free air freezing level 10,000 ft. Friday and Friday night, 9,000 ft. Saturday, 10,000 ft. Saturday night, 9,000 ft. Sunday, then 10,000 ft. Sunday night and Monday.
• highs near 63 lows near 35.
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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 eugenedailynews.com.

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