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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A high pressure ridge (Shaded “Arch” shape with blue arrows) has kept us warmer than normal, but low pressure (Shaded “U” shape with blue arrows) will bring at least a slight chance of showers and thunderstorms by Friday evening. Saturday a frontal system (position shown is for Sunday morning) will move across the Pacific Northwest from the west keeping at least a slight chance of showers and thunderstorms with us. Yet another frontal system slides in next Wednesday increasing 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 45 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 Friday AM, partly cloudy and still warm in the afternoon, a good (50%) chance of showers and a slight (20%) chance of thunderstorms in the evening, mostly cloudy with a showers likely (70%) late Friday night,
• Mostly cloudy and much cooler with showers likely (70%) Saturday and in the evening, a good (50%) chance of showers late at night,
• Mostly cloudy with a good (50%) chance of showers Sunday, a (40%) chance of evening showers, then a slight (20%) chance of showers late Sunday night.
• lows near 50 highs 82-62.
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Monday and in the evening, just partly cloudy late Monday night,
• A mix of clouds and sun Tuesday, partly cloudy in the evening, mostly cloudy with a (40%) chance of showers late Tuesday night,
• Mostly cloudy and a bit cooler with a (40%) chance of showers Wednesday, a good (50%) chance of showers at night,
• Then cloudy and a bit cooler with a good (50%) chance of showers Thursday.
• highs 68-63 lows 47-50. (seasonal averages high 67 low 43.)

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Eugene-Springfield Pollen Count:

Grass………. High (69)

Trees………. Moderate (75)

Last Counted: 5/12/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Clear tonight,
• Sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Friday afternoon, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms in the evening, showers likely (70%) late Friday night and Saturday (much cooler), cloudy with a good (50%) chance of showers Saturday night,
• Cloudy with a (40%) chance of showers and a bit warmer Sunday, then mostly cloudy with a slight (20%) chance of showers Sunday night.
• lows 50-54 cooling back to 50 Saturday night and Sunday night highs 85-66 warming to 68 Sunday.
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Monday, just mostly cloudy Monday night,
• Mostly cloudy and warmer with a slight (20%) chance of showers Tuesday and Tuesday night,
• Cloudy with a (40%) chance of showers Wednesday and Thursday, mostly cloudy with a (30%) chance of showers Wednesday night.
• highs 72-70 lows near 50. (seasonal averages high 69 low 47).

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

• Mostly cloudy with patchy coastal fog tonight while clear this evening inland and patchy fog late tonight,
• Cloudy with areas of AM coastal fog and sunny in the afternoon while patchy AM inland fog and partly cloudy with a slight (20%) chance of showers and a bit cooler inland Friday afternoon, partly cloudy with a slight (20%) chance of evening coastal showers while a good (50%) chance of showers and a slight (20%) chance of evening inland thunderstorms, mostly cloudy with showers likely (70%) with a slight (20%) chance of thunderstorms late Friday night,
• AM showers, showers likely (70%) and a bit cooler Saturday afternoon, a (40%) chance of showers late at night,
• Cloudy and a bit warmer with a (30%) chance of showers Sunday, mostly cloudy with a slight (20%) chance of showers in the evening, then just mostly cloudy late Sunday night.
• lows 50-52 highs 62-58 cooling back to 62 Sunday.
• Mostly cloudy Monday and at night,
• Mostly cloudy with a slight (20%) chance of showers Tuesday and Tuesday night,
• Cloudy with a (40%) chance of showers Wednesday and Thursday (a bit cooler), mostly cloudy with a (40%) chance of showers Wednesday night.
• highs 62-60 lows 50-53. (seasonal averages high 59 low 47)

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Sunny Friday AM, a mix of clouds and sun and a bit warmer 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, showers likely (70%) and much cooler with showers likely (70%) and a slight (20%) chance of thunderstorms late Friday night,
• Showers and cooler Saturday, showers likely (70%) late Saturday night,
• Cloudy with a (40%) chance of showers Sunday AM, showers likely (70%) and a bit cooler in the afternoon and evening, then a slight (20%) chance of showers late Sunday night.
• free air freezing level 12,000 ft. tonight, then snow level above 8,000 ft. Friday through Saturday, 7,000 ft. Saturday night, 6,000 ft. Sunday, then 7,000 ft. Sunday night.
• lows 42-37 highs 73-47.
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Monday and in the evening, just partly cloudy late at night through Tuesday evening, mostly cloudy with a slight (20%) chance of showers late Tuesday night,
• Mostly cloudy Wednesday AM, a good (50%) chance of showers in the afternoon, cloudy with a good (50%) chance of showers Wednesday night and Thursday.
• snow level 8,000 ft. Monday, 7,000 ft. Monday night, free air freezing level 10,000 ft.Tuesday, snow level 8,000 ft. Wednesday night, then 6,500 ft. Thursday.
• highs 54-50 lows near 35.

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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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