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 this 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 33 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 22 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:

• Partly cloudy and still warm today, increasing clouds to mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms this evening, mostly cloudy with showers likely (70%) and a slight (20%) chance of thunderstorms late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with AM showers likely (70%) with a slight (20%) chance of thunderstorms, showers likely (70%) and much cooler Saturday afternoon and in the evening (0.25 in. of rain possible), a good (50%) chance of showers late at night (under 0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Sunday and in the evening, then a slight (20%) chance of showers late Sunday night.
• highs 82-62 lows near 50.
• Mostly cloudy with a slight (20%) chance of AM showers and a bit warmer Monday afternoon and in the evening, just partly cloudy late Monday night,
• A mix of clouds and sun Tuesday, partly cloudy with a slight (20%) chance of evening showers, 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:

• Sunny this AM, partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms this afternoon, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms this evening, showers likely (70%) late tonight (0.25 in. of rain possible) and Saturday AM, showers likely (70%) and much cooler in the afternoon (0.25 in. of rain possible), cloudy with a (30%) chance of showers Saturday night (under 0.10 in. of rain possible),
• Cloudy with a (40%) chance of showers and a bit warmer Sunday (under 0.10 in. of rain possible), then mostly cloudy with a slight (20%) chance of showers Sunday night.
• highs 85-66 warming to 68 Sunday lows 54-50.
• Mostly cloudy with a slight (20%) chance of AM showers, mostly cloudy and a bit warmer Monday afternoon, just partly cloudy Monday night,
• Mostly cloudy and warmer Tuesday and Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night,
• Then mostly cloudy with a (30%) chance of showers Thursday.
• highs 72-70 lows near 50. (seasonal averages high 70 low 47).

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

• Cloudy with areas of AM coastal fog and sunny this afternoon while patchy AM inland fog and partly cloudy with a slight (20%) chance of showers and a bit cooler inland this 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 tonight (under 0.10 in. of rain possible),
• AM showers, showers likely (70%) and a bit cooler Saturday afternoon (0.25 in. of rain possible), a (40%) chance of showers late at night (under 0.10 in. of rain possible),
• Cloudy and a bit warmer with a (30%) chance of showers Sunday (under 0.10 in. of rain possible), then just mostly cloudy late Sunday night.
• highs 62-58 cooling back to 62 Sunday lows near 52.
• Mostly cloudy Monday, mostly clear in the evening, mostly cloudy late at night through Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night,
• Then mostly cloudy and a bit cooler Thursday.
• highs 62-60 lows 50-53. (seasonal averages high 59 low 47)

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Forecast for the Cascades in Lane County:

• Sunny this AM, a mix of clouds and sun and a bit warmer with a slight (20%) chance of showers and thunderstorms this afternoon, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms this evening, showers likely (70%) and much cooler with showers likely (70%) and a slight (20%) chance of thunderstorms late tonight,
• AM Showers likely (70%) with a slight (20%) chance of thunderstorms, showers and cooler Saturday afternoon, 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.
• snow level above 8,000 ft. today through Saturday, 7,500 ft. Saturday night, 6,500 ft. Sunday, then 7,000 ft. Sunday night.
• highs 73-47 lows 42-37.
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers AM Monday, just partly cloudy late at night through Tuesday evening, mostly cloudy with a slight (20%) chance of showers late Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday AM, a good (50%) chance of showers in the afternoon, then cloudy with a good (50%) chance of showers Wednesday night and Thursday.
• snow level 8,000 ft. Monday, free air freezing level 10,000 ft. Monday night, 11,000 ft.Tuesday, snow level above 8,000 ft. Tuesday night through Wednesday night, then 5,500 ft. Thursday.
• highs 54-57 cooling to near 50 Thursday 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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