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 getting stronger and moved over us for a warmup to what should have been record high temperatures for Eugene. As it turns out both Roseburg and North Bend set record highs Sunday, but Eugene did not. That may change today. Between Tuesday night and Wednesday a complex frontal system moves onshore bringing showers and possible thunderstorms with it. As you can see another frontal system is on the Pacific Coast Friday bringing cooler temperatures and the chance of showers.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 42 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 38 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 (4)

Trees………. Very High (365)

Last Counted: 4/13/16

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 sunny and a bit warmer today and Tuesday, mostly clear tonight, mostly cloudy with a slight (20%) chance of showers and thunderstorms Tuesday night,
• Mostly cloudy and much cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday, then mostly cloudy with a slight (20%) chance of showers at night.
• highs 84-70 lows 47-50.
• Mostly cloudy with a (40%) chance of showers and a bit cooler Thursday, showers likely (60%) Thursday night and Friday (a bit cooler), then mostly cloudy with a good (50%) chance of showers Friday night through Sunday.
• highs 69-59 warming to 62 Sunday 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:

• Sunny and a bit cooler today and Tuesday, clear tonight, 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 and Wednesday, then mostly cloudy with a (30%) chance of showers Wednesday night.
• highs 87-75 lows 53-50.
• Mostly cloudy and a bit cooler with a (30%) chance of showers Thursday, showers likely (60%) Thursday night and Friday, cloudy with a (40%) chance of showers Friday night,
• Then mostly cloudy and a bit cooler with a good (50%) chance of showers Saturday through Sunday.
• highs 68-58 lows 48-45. (seasonal averages high 63 low 42).

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

• Sunny today, clear tonight,
• AM sun, partly cloudy and a bit cooler Tuesday afternoon and evening, mostly cloudy with a (30%) chance of showers late at night while a slight (20%) chance of inland thunderstorms and a good (50%) chance of inland showers late Tuesday night,
• Mostly cloudy with a (30%) chance of showers and a bit cooler Wednesday, then a slight (20%) chance of showers Wednesday night.
• highs 68-63 lows 53-50.
• Mostly cloudy with a (40%) chance of showers Thursday, showers Thursday night,
• Mostly cloudy and a bit cooler with showers likely (60%) Friday and Saturday, mostly cloudy with a (40%) chance of showers Friday night and Saturday night,
• Then mostly cloudy with a (40%) chance of showers Sunday.
• highs 60-57 lows 50-48. (seasonal averages high 55 low 43).

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Forecast for the Cascades in Lane County:

• Mostly sunny and a bit cooler today, mostly clear tonight,
• AM sun, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Tuesday afternoon, a good (50%) chance of showers with a slight (20%) chance of thunderstorms Tuesday night and Wednesday, then mostly cloudy with a slight (20%) chance of showers Wednesday night.
• free air freezing level 13,000 ft. today and tonight, then snow level above 8,000 ft. Tuesday through Wednesday night.
• highs 72-55 lows 38-42.
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Thursday, showers likely (70%) Thursday night through Friday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Saturday, rain and snow showers likely (70%) at night,
• Then mostly cloudy with a good (50%) chance of rain and snow showers Sunday.
• snow level 7,500 ft. Thursday and Thursday night, 6,500 ft. Friday, 6,000 ft. Friday night,  5,000 ft. Saturday, 5,500 ft. Saturday night, then 4,000 ft. Sunday.
• highs 54-43 lows 34-30.

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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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