Here is my weekly weather quiz question. What is a  “Short-fuse Warning?” 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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As the upper level low (Shaded “U” shape with blue arrows) slides away to the east as a high pressure ridge (Shaded “Arch” shape with blue arrows) takes over for most of the week.  A frontal system moves down from the northwest Thursday returning the chance of showers. Saturday another frontal system will move across the Pacific Northwest from the west keeping at least a slight chance of thunderstorms with us.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 39 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 7 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 41 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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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 the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Clear tonight,
• Sunny and warmer Wednesday and Thursday, clear both nights,
• Sunny Friday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon,  mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms in the evening, then showers likely (60%) late Friday night.
• lows 44-52 highs 82-78.
• Mostly cloudy with AM showers likely (60%), a bit cooler with a good (50%) chance of showers Saturday afternoon, cloudy with a good (50%) chance of showers in the evening,  just a slight (20%) chance of showers late at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Sunday AM, a mix of clouds and sun with a slight (20%) chance of afternoon showers, partly cloudy Sunday night,
• A mix of clouds and sun Monday afternoon with a slight (20%) chance of showers and a bit warmer, partly cloudy with a slight (20%) chance of showers late Monday night,
• A slight (20%) chance of AM showers, then a (30%) chance of showers and a bit cooler Tuesday afternoon.
• highs 64-72 cooling to 67 Tuesday lows 50-48. (seasonal averages high 66 low 43.)

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Eugene-Springfield Pollen Count:

Grass………. Moderate (8)

Trees………. Low (10)

Last Counted: 5/10/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Clear tonight,
• Sunny and a bit warmer Wednesday and Thursday, clear both nights,
• Sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Friday afternoon, showers likely (70%) and a slight (20%) chance of thunderstorms Friday night.
• lows 50-52 highs 90-84.
• Showers likely (70%) with a slight (20%) chance of thunderstorms and much cooler Saturday, mostly cloudy with a (30%) chance of showers late Saturday night,
• Mostly cloudy with a slight (20%) chance of showers Sunday AM, just mostly cloudy and a bit warmer in the afternoon, partly cloudy Sunday night,
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Monday and Tuesday (a bit cooler), partly cloudy with a slight (20%) chance of showers Monday night.
• highs 67-76 lows 52-50. (seasonal averages high 69 low 46).

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

• Clear tonight,
• Sunny and a bit warmer Wednesday and Thursday, clear Wednesday night, partly cloudy Thursday evening at the shore and mostly cloudy with patchy fog late at night while clear inland Thursday night,
• Sunny with patchy AM fog, becoming mostly cloudy with a slight (20%) chance of showers and a bit cooler Friday afternoon and evening, then showers likely (70%) late Friday night.
• lows near 50 highs 69-60.
• Mostly cloudy with showers Saturday AM, showers likely (70%) in the afternoon, a (30%) chance of showers Saturday night,
• Just mostly cloudy and a bit warmer Sunday and Sunday night,
• Mostly cloudy with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance of showers at night,
• Then just mostly cloudy Tuesday.
• highs 60-63 lows near 52. (seasonal averages high 59 low 46)

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Sunny and a bit warmer Wednesday and Thursday, clear both nights,
• Sunny Friday AM, a mix of clouds and sun and a bit warmer with a (40%) chance of showers and a slight (20%) chance of thunderstorms in the afternoon, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms in the evening, then showers likely (70%) late Friday night.
• free air freezing level 10,000 ft. tonight, 12,000 ft. Wednesday through Thursday night, then snow level above 8,000 ft. Friday and Friday night.
• lows 36-42 highs 69-72.
• Mostly cloudy with AM showers likely (70%), much cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Saturday afternoon, cloudy with evening showers likely (70%) and a slight (20%) chance of thunderstorms, a good (50%) chance of showers late Saturday night,
• Cloudy with a (40%) chance of showers Sunday AM, a mix of clouds and sun with a (40%) chance of afternoon showers, mostly cloudy with a (30%) chance of evening showers, a slight (20%) chance of showers late Sunday night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance  of showers at night,
• A mix of clouds and sun with a slight (20%) chance of showers Tuesday AM, then and a bit cooler  with a (30%) chance of showers Tuesday afternoon.
• snow level above 8,000 ft. Friday and Friday night, above 8,000 ft. falling to 8,000 ft. Saturday afternoon, snow level  7,000 ft. Saturday night and Sunday, 7,500 ft. Sunday night, 8,000 ft. Monday, then above 8,000 ft. Monday night and Tuesday.
• highs 52-58 cooling to 54 Tuesday lows near 38.

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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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