Here is my new weekly weather quiz question. What is “SKYWARN?”  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 low (Shaded “U” shape with blue arrows) returned pushing a frontal system through the Pacific Northwest, thus returning our rain chances. Sunday shows another weak frontal system just off shore continuing our showers. By Tuesday a frontal system will be approaching from the northwest.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 3 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 29 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:

• Cloudy with showers and a slight (20%) chance of thunderstorms and small hail possible this evening, a good (50%) chance of showers late tonight (0.10 in. of rain possible, more in storms),
• Cloudy with a slight (20%) chance of AM showers, a mix of clouds and sun with a (40%) chance of showers  Friday afternoon, mostly cloudy with a (40%) chance of showers late at night (under 0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers and a bit warmer Saturday(under 0.10 in. of rain possible), a (40%) chance of showers Saturday night (under 0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers Sunday AM, showers and a bit cooler in the afternoon, then cloudy with a good (50%) chance of showers Sunday night.
• lows 46-50 highs 63-65 cooling to 60 Sunday night.
• Cloudy with a good (50%) chance of showers and a bit warmer Monday and Monday night,
• A (30%) chance of AM showers, a slight (20%) chance of showers and a bit warmer Tuesday afternoon, cloudy with a slight (20%) chance of showers Tuesday night and Wednesday AM, a mix of clouds and sun and a bit warmer with a slight (20%) chance of afternoon showers, then mostly cloudy with a slight (20%) chance of showers Wednesday night and Thursday.
• highs 63-68 lows near 46. (seasonal averages high 68 low 44.)

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Eugene-Springfield Pollen Count:

Grass………. High (91)

Trees………. Moderate  (39)

Last Counted: 5/19/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Cloudy with showers this evening, a good (50%) chance of showers late tonight (under 0.10 in. of rain possible) and Friday AM, warmer with a (40%) chance of showers and a slight (20%) chance of thunderstorms Friday afternoon and evening (under 0.10 in. of rain possible), a (40%) chance of showers late Friday night (under 0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance of showers and a bit warmer Saturday (under 0.10 in. of rain possible), a (30%) chance of showers Saturday night (under 0.10 in. of rain possible),
• A (40%) chance of showers Sunday AM, a bit cooler with showers likely (70%) in the afternoon, cloudy with evening showers likely (70%), then a good (50%) chance of showers Sunday night.
• lows 45-50 highs 62-65.
• Cloudy and a bit cooler with showers likely (70%) Monday and Monday night,
• Mostly cloudy and a bit warmer with a (30%) chance of showers Tuesday and Tuesday night,
• Then mostly cloudy with a (20%) chance of showers Wednesday through Thursday.
• highs 63-72  lows near 50. (seasonal averages high 71 low 48).

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

• Cloudy with evening coastal showers and showers likely (70%) late tonight while , a good (50%) chance of showers tonight (0.15 in. of rain possible), inland showers this evening and a good (50%) chance of inland showers late at night (under 0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance showers Friday (under 0.10 in. of rain possible) and Friday night (under 0.10 in. of rain possible),
• Mostly cloudy and a bit warmer with a (40%) chance of showers Saturday (under 0.10 in. of rain possible), a (30%) chance of showers Saturday night (under 0.10 in. of rain possible),
• A (40%) chance of showers Sunday, showers likely (70%) Sunday night.
• lows 48-52 highs near 60.
• Mostly cloudy and a bit cooler with showers likely (70%) Monday and Monday night,
• Cloudy with a (30%) chance of showers and a bit warmer Tuesday, then mostly cloudy with a slight (20%) chance of showers Tuesday night through Thursday.
• highs 58-62 lows near 52. (seasonal averages high 59 low 48)

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Forecast for the Cascades in Lane County:

• Mostly cloudy with showers and a slight (20%) chance of thunderstorms and possible hail this evening, rain and snow showers late tonight (0.25 in. of rain possible, more in storms, 1-3 in. of snow possible),
• Cloudy with rain and snow showers likely (70%) Friday AM, rain and snow showers likely (70%) with a slight (20%) chance of thunderstorms in the afternoon and evening (0.10 in. of rain possible, more in storms), a good (50%) chance of showers late Friday night (0.10 in. of rain possible),
• Cloudy with AM rain and snow showers likely (70%), a good (50%) chance of showers and a bit warmer Saturday afternoon, mostly cloudy with a good (50%) chance of showers late at night,
• Mostly cloudy with rain and snow showers Sunday, then showers Sunday night.
• snow level 4,500 ft. tonight and Friday, then 6,000 ft. Friday night through Sunday night.
• lows 33-36 highs 44-47 cooling to 45 Sunday.
• Mostly cloudy with showers likely (70%) and a bit warmer Monday and in the evening, a (30%) chance of showers Monday night and Tuesday AM, a bit warmer with a slight (20%) chance of showers in the afternoon, mostly cloudy with a slight (20%) chance of showers Tuesday night,
• Cloudy with a slight (20%) chance of AM showers, a mix of clouds and sun and a bit warmer with a (30%) chance of  showers  Wednesday afternoon, partly cloudy with a (30%) chance of evening showers, mostly cloudy with a (30%) chance of showers late Wednesday night,
• Then a mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday.
• snow level 6,000 ft. Monday through Tuesday night, then 6,500 ft. Wednesday through Thursday.
• highs 48-56 lows near 37.

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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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