Here is my weekly weather quiz question. What is  “Residual Moisture?” 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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Greek Letter Omega – Blocking High Pressure Shaped Like It. | Image by wiki.com

An upper level ridge of high pressure, called an “Omega Block” because it is shaped like the Greek letter Omega, (Shaded “Arch” shape with blue arrows) takes over clearing us out and keeping the sunshine around for the rest of the workweek. A cold front crosses the Oregon coast Saturday with another front right behind it and you know what that means, rainy weather. More active weather Sunday from a complex frontal system.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 16 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 18 in the Good category measuring Particulate Matter.

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

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Advisories: None At This Time.

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Eugene-Springfield Pollen Count:

Grass………. Low (0)

Trees………. High (148)

Last Counted: 3/26/16

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:

• Partly cloudy with patchy fog this AM, mostly sunny and a bit warmer this afternoon, clear tonight,
• Sunny and a bit warmer Wednesday and Thursday, clear at night.
• highs 60-68 lows 36-39.
• Sunny and a bit warmer Friday, mostly clear Friday night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Saturday and Saturday night,
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Sunday, a (40%) chance of rain Sunday night,
• Then mostly cloudy with a (40%) chance  of showers Monday.
• highs 69-57 lows 45-42. (seasonal averages high 58 low 38).

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Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

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Forecast for Roseburg:

• Partly cloudy this AM, sunny and a bit warmer this afternoon, Wednesday and Thursday, clear to mostly clear at night,
• highs 62-73 lows 38-40.
• Sunny and a bit warmer Friday, mostly clear at night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Saturday through Sunday, then mostly cloudy with a (30%) chance of showers Sunday night and Monday.
• highs 72-60 lows 46-42 warming to 44 Monday. (seasonal averages high 59 low 40).

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Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Partly cloudy this AM, sunny and a bit warmer this afternoon, Wednesday, and Thursday (cooler), clear each night,
• highs 57-67 cooling to 62 Thursday lows 42-46.
• Sunny and a bit cooler Friday, partly cloudy at night,
• Partly cloudy with a slight (20%) chance of showers and a bit cooler Saturday and Saturday night,
• Mostly cloudy and a bit cooler with a (30%) chance of showers Sunday and Sunday night,
• Then mostly cloudy with a (40%) chance of showers Monday.
• highs 62-55 lows 46-44 warming back to 46 Sunday night. (seasonal averages high 54 low 42).

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Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of AM snow showers,  just partly cloudy and warmer this afternoon and evening, mostly clear late late tonight,
• Sunny and a bit warmer Wednesday and Thursday, mostly clear both nights.
• snow level 3,500 ft. this AM, free air freezing level 6,500 ft. falling to 6,000 ft. late tonight, 7,500 ft. rising to 10,000 ft. Wednesday afternoon, 10,000 ft. Wednesday night, 9,000 ft. Thursday, then 10,000 ft. Thursday night.
• highs 46-58 lows 26-32.
• Mostly sunny and a bit cooler Friday, partly cloudy Friday night,
• Partly cloudy with a (30%) chance of showers and a bit cooler Saturday, partly cloudy with a slight (20%) chance of showers Saturday night and Sunday, a (40%) chance of rain Sunday night,
• Then mostly cloudy and a bit cooler with a (40%) chance of rain and snow showers Monday.
• free air freezing level 10,000 ft. Friday and Friday night, snow level 7,000 ft. Saturday, 6,500 ft. Saturday night, 6,000 ft. Sunday and Sunday night, then 5,000 ft. Monday.
• highs 54-45 lows 34-32.

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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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