Here is my new weekly weather quiz question. What is a “Return Stroke?”  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 is weakening allowing a weak frontal system to bring more clouds to Oregon and the chance of showers through this evening. Drying weather Tuesday through Friday as high pressure strengthens again, then two frontal systems, one to the northwest and the other to the southwest approach the coast Friday bringing the slight chance of showers back to the Pacific Northwest.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 9 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 6 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: None At This Time.

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Eugene-Springfield Pollen Count:

Grass………. Moderate (5)

Trees………. Very High (618)

Last Counted: 4/02/16

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:

• Mostly cloudy with a good (50%) chance of showers and much cooler today (0.10 in. of rain possible), a slight (20%) chance of evening showers, just mostly cloudy tonight and Tuesday AM, a mix of clouds and sun and a bit warmer Tuesday afternoon, then partly cloudy at night,
• Sunny and a bit warmer Wednesday, then clear at night.
• highs 58-80 lows 42-48.
• Sunny and a bit warmer Thursday, partly cloudy Thursday night and Friday (cooler), partly cloudy with a slight (20%) chance of showers Friday night,
• Then a mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Saturday and Sunday, partly cloudy with a slight (20%) chance of showers Saturday night.
• highs 85-65 lows 48-45. (seasonal averages high 59 low 39).

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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:

• Mostly cloudy and a bit cooler today with a good (50%) chance of showers (under 0.10 in. of rain possible, AM snow level 3,500 ft.), just mostly cloudy tonight,
• Mostly cloudy in the AM, partly cloudy and warmer Tuesday afternoon, mostly clear Tuesday night,
• Sunny and a bit warmer Wednesday, then clear at night.
• highs 60-84 lows 40-50.
• Sunny and a bit warmer Thursday, partly cloudy Thursday night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Friday, mostly cloudy with a slight (20%) chance of evening thunderstorms, a slight (20%) chance of showers late at night,
• Mostly cloudy and cooler with a (30%) chance of showers Saturday through Sunday.
• highs 86-65 lows 52-45. (seasonal averages high 60 low 41).

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

• Mostly cloudy with a (30%) chance of showers and a bit cooler this afternoon (under 0.10 in. of rain possible), partly cloudy this evening, just mostly cloudy late tonight,
• Mostly cloudy Tuesday AM, partly cloudy and a bit warmer in the afternoon, mostly clear Tuesday night,
• Sunny and a bit warmer Wednesday, then clear at night.
• highs 55-77 lows 42-54.
• Sunny and a bit cooler Thursday, partly cloudy Thursday night,
• Partly cloudy and a bit cooler Friday, mostly cloudy with a slight (20%) chance of evening thunderstorms, a slight (20%) chance of showers late Friday night,
• Mostly cloudy and cooler with a (30%) chance of showers Saturday through Sunday.
• highs 68-57 lows 52-48. (seasonal averages high 54 low 42).

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Forecast for the Cascades in Lane County:

• Mostly cloudy with rain and snow showers likely (70%) and a bit cooler today (0.10 in. of rain possible, 1 in. of snow possible), a slight (20%) chance of rain and snow showers this evening, just mostly cloudy late tonight and Tuesday AM, a mix of clouds and sun and a bit warmer in the afternoon, becoming mostly clear Tuesday night,
• Sunny and a bit warmer Wednesday, then clear at night.
• snow level 4,000 ft. today and tonight, free air freezing level 7,000 ft. Tuesday, 10,000 ft. Tuesday night, 12,000 ft. Wednesday, then 13,000 ft. Wednesday night.
• highs 40-72 lows 26-45.
• Sunny Thursday, partly cloudy Thursday night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Friday, mostly cloudy with a slight (20%) chance of showers at night,
• A mix of clouds and sun with a (40%) chance of showers and a bit cooler Saturday, partly cloudy with a slight (20%) chance of showers Saturday night,
• Then a mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Sunday.
• free air freezing level 12,000 ft. Thursday and Thursday night, snow level 9,000 ft. Friday and Saturday 8,000 ft. Saturday night, then 6,500 ft. Sunday.
• highs 68-48 lows 45-34.

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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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