Here is my new weekly weather quiz question. What is  “Rime Ice?” 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 high pressure ridge (Shaded “Arch” shape with blue arrows) is going to move away as low pressure (Shaded “U” shape with blue arrows) moves in. A frontal system is heading our way bringing showers and possible thunderstorms with it. As you can see another parade of frontal systems will continue the chance of showers for a while.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 32 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 28 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 (3)

Trees………. High (346)

Last Counted: 4/16/16

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 clear tonight,
• Mostly sunny and a bit cooler Tuesday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers and thunderstorms Tuesday night (under 0.10 in. of rain possible),
• A mix of clouds and sun and much cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers in the evening, just mostly cloudy at night,
• Mostly cloudy with a (40%) chance of showers and a bit cooler Thursday, then showers likely (70%) Thursday night.
• lows 48-52 cooling back to 48 Wednesday night warming to 50 Thursday night highs 82-68.
• Mostly cloudy with showers likely (70%) and a bit cooler Friday, mostly cloudy with a good (50%) chance of showers Friday night through Sunday, a (40%) chance of showers Sunday night,
• Then mostly cloudy and a bit warmer with a (30%) chance of showers Monday.
• highs 64-58 warming to 60 Monday lows 47-43. (seasonal averages high 61 low 40).

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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:

• Clear tonight,
• Sunny and a bit cooler Tuesday, partly cloudy with a slight (20%) chance of thunderstorms Tuesday evening, mostly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms late Tuesday night (under 0.10 in. of rain possible) and Wednesday (under 0.10 in. of rain possible), a slight (20%) chance of evening thunderstorms, mostly cloudy with a slight (20%) chance of showers Wednesday night,
• Mostly cloudy and a bit cooler with a (30%) chance of showers Thursday, then showers Thursday night.
• lows 53-50 highs 86-72.
• Mostly cloudy with showers likely (60%) Friday, cloudy with a (40%) chance of showers Friday night and Saturday, then mostly cloudy and a bit cooler with a good (50%) chance of showers Saturday night through Monday.
• highs 68-58 warming to 62 Monday lows 48-44. (seasonal averages high 63 low 42).

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

• Mostly clear tonight,
• AM sun, partly cloudy and a bit cooler Tuesday afternoon and evening, mostly cloudy with a (30%) chance of coastal showers late at night while a slight (20%) chance of evening inland thunderstorms and a (30%) chance of inland showers late Tuesday night (under 0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of showers and a bit cooler Wednesday (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of inland evening, a (30%) chance of showers late Wednesday night,
• Mostly cloudy with a good (50%) chance of showers Thursday, then showers Thursday night.
• lows 53-50 warming back to 53 Thursday night highs 69-60.
• Mostly cloudy and a bit cooler with showers likely (60%) Friday, cloudy with a (40%) chance of showers at night,
• Mostly cloudy with a (40%) chance of showers and a bit cooler Saturday and Saturday night,
• Showers likely (60%) Sunday, then mostly cloudy with a (30%) chance of showers Sunday night and Monday.
• highs 62-56 lows 50-46. (seasonal averages high 55 low 43).

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• AM sun, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Tuesday afternoon, partly cloudy in the evening, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Tuesday night (0.10 in. of rain possible, more in storms) and Wednesday, mostly cloudy with a (40%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late Wednesday night,
• A mix of clouds and sun with a (30%) chance of showers Thursday AM, a (30%) chance of showers and a bit cooler in the afternoon, then showers likely (70%) Thursday night.
• free air freezing level 13,000 ft. tonight, then snow level above 8,000 ft. Tuesday through Thursday night.
• lows 42-35 highs 72-58.
• Mostly cloudy with showers likely (70%) and a bit cooler Friday, cloudy with a good (50%) chance of showers at night,
• Mostly cloudy and a bit cooler with showers likely (70%) Saturday, rain and snow showers likely (70%) at night,
• Mostly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Sunday and Sunday night,
• Then mostly cloudy and a bit warmer with a (30%) chance of showers Monday.
• snow level 7,500 ft. Friday, 7,000 ft. Friday night,  6,000 ft. Saturday, 5,500 ft. Saturday night, 4,000 ft. Sunday, 4,500 ft. Sunday night, then 4,000 ft. Monday night.
• highs 52-40 warming to 44 Monday lows 33-28.

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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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