Here is my weekly weather quiz question. What is  “Staccato Lightning?” 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 (Shaded “Arch” shape with blue arrows) weakens and allows a weak disturbance to bring clouds and cool us a bit. There’s only a slight chance of showers overnight and Thursday. High pressure takes over again through the weekend into next week. .A frontal system will be pushing through the Pacific Northwest Tuesday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 31 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 33 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories:

A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TONIGHT FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, AND THE CENTRAL MOUNTAINS OF OREGON.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy this evening, mostly cloudy with a slight (20%) chance of showers late tonight and Thursday (cooler), just mostly cloudy in the evening, partly cloudy late Thursday night,
• Mostly sunny and warmer Friday and Saturday, clear at night,
• Mostly sunny and hot Saturday, then mostly clear Saturday night.
• lows 52-59 highs 75-93.
• Mostly sunny and just a bit warmer Sunday, then partly cloudy and a bit cooler Sunday night through Wednesday.
• highs 94-72 lows 55-50. (seasonal averages high 70 low 46.)

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Eugene-Springfield Pollen Count:

Grass………. Very High (460)

Trees………. Moderate (44)

Last Counted: 6/1/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Partly cloudy tonight,
• Mostly cloudy with a slight (20%) chance of AM sprinkles, a bit cooler Thursday afternoon, mostly cloudy in the evening, partly cloudy late at night,
• Sunny and a bit warmer Friday and Saturday, clear at night.
• lows 55-62 highs 83-97.
• Sunny in the AM, partly cloudy and cooler with a slight (20%) chance of thunderstorms Sunday afternoon and evening, then just partly cloudy and a bit cooler late Sunday night through Wednesday.
• highs 93-76 lows 59-52. (seasonal averages high 73 low 50).

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

• Partly cloudy this evening, mostly cloudy late tonight,
• Mostly cloudy with a slight (20%) chance of AM sprinkles, just mostly cloudy and a bit warmer Thursday afternoon and evening, partly cloudy late Thursday night,
• Sunny and a bit warmer Friday, clear Friday night,
• Mostly sunny and a bit cooler Saturday, then mostly clear Saturday night.
• lows 55-57 highs 66-70.
• Then partly cloudy and a bit cooler Sunday through Wednesday.
• highs 67-62 lows 54-52. (seasonal averages high 60 low 49)

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Forecast for the Cascades in Lane County:

• Partly cloudy tonight,
• A slight (20%) chance of AM showers, a mix of clouds and sun and a bit cooler Thursday afternoon, mostly cloudy in the evening, partly cloudy late at night,
• Then mostly sunny and a bit warmer Friday and Saturday, mostly clear both nights
• free air freezing level 12,000 ft. tonight, snow level above 8,000 ft. Thursday, free air freezing level 13,000 ft. Thursday night and Friday, 14,000 ft. Friday night, then 15,000 ft. Saturday and Saturday night.
• lows 40-57 highs 67-85.
• Mostly sunny in the AM, partly cloudy and a bit warmer with a slight (20%) chance of showers and thunderstorms Sunday afternoon and evening, partly cloudy late Sunday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers and thunderstorms Monday afternoon and evening, a slight (20%) chance of showers late Monday night,
• Partly cloudy with a slight (20%) chance of showers Tuesday AM, a bit cooler with a slight (20%) chance of showers and thunderstorms Tuesday afternoon and evening, a slight (20%) chance of showers late at night and Wednesday AM, then partly cloudy with a slight (20%) chance of showers and thunderstorms Wednesday afternoon.
• free air freezing level 15,000 ft. Saturday through Sunday AM, then snow level above 8,000 ft. Sunday through Wednesday.
• highs 87-63 lows 55-42.

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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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