Here is my 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) moves toward us bringing an increase in marine airflow from the West and that means a change in our weather to a chance of showers. Here comes a frontal system to add showers into the mix. It’s back to sunshine and no rain starting Saturday as High Pressure takes over to dry us out and warm us up.

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Air Quality Index:

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

Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 35 in the Good category measuring Ozone.

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

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Advisories: None At This Time.

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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 (40%) chance of showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Thursday (0.10 in. of rain possible), a good (50%) chance of showers Thursday night (0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of AM showers, a slight (20%) chance of showers and a bit warmer Friday afternoon (under 0.10 in. of rain possible), partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Friday night and and Saturday AM, mostly sunny and a bit warmer Saturday afternoon, partly cloudy in the evening, then clear late Saturday night.
• lows 54-46 warming to 50 Saturday night highs 66-79.
• Sunny and a bit warmer Sunday, clear in the evening, partly cloudy late Sunday night,
• AM clouds and sun, then sunny and a bit warmer Monday afternoon, Tuesday and Wednesday, clear each night.
• highs 82-85 lows 52-55 cooling back to 52 Tuesday night. (seasonal averages high 75 low 49)

 

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Eugene-Springfield Pollen Count:

Grass………. High (160)

Trees………. Moderate (20)

Last Counted: 6/22/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Partly cloudy this evening, mostly cloudy with a (40%) chance of showers late tonight,
• Mostly cloudy with a (40%) chance of AM showers, showers likely (60%)  and a bit warmer Thursday, a (30%) chance of showers Thursday night,
• A slight (20%) chance of showers Friday AM, partly cloudy and a bit warmer in the afternoon, mostly clear Friday night,
• Mostly sunny and a bit warmer Saturday, then mostly clear Saturday night.
• lows 53-50 warming to 55 Saturday night highs 69-84.
• Sunny and a bit warmer Sunday through Wednesday, clear each night.
• highs 85-88 lows near 60. (seasonal averages high 78 low 53)

 

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

• Mostly cloudy with coastal showers likely (70%) late tonight while a (40%) chance of inland showers tonight (under 0.10 in. of rain possible),
  Mostly cloudy with AM showers, showers likely (70%) and a bit cooler Thursday (0.15 in. of rain possible), a (40%) chance of showers Thursday night (under 0.10 in. of rain possible),
  Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy a bit warmer Friday afternoon, mostly clear Friday night,
  Sunny and a bit warmer Saturday, mostly clear in the evening, then partly cloudy late Saturday night.
• lows 54-52 highs 62-66.
• Mostly sunny Sunday, mostly clear at night,
• Partly cloudy Monday AM, sunny in the afternoon, mostly clear Monday night,
• Then mostly sunny Tuesday and Wednesday and mostly clear Tuesday night.
• highs near 65 lows 55-53. (seasonal averages high 62 low 51)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of showers late tonight,
• Mostly cloudy with a (40%) chance of AM showers, a bit cooler with showers becoming likely (70%) Thursday afternoon, showers Thursday night (0.25 in. of rain possible),
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Friday, partly cloudy at night,
• Mostly sunny and a bit warmer Saturday, partly cloudy in the evening, then clear late Saturday night.
• snow level above 8,000 ft. tonight and Thursday 8,000 ft. falling to 6,500 ft. Thursday night, 6,000 ft. rising to rising to 7,500 ft. Friday afternoon, free air freezing level 13,,000 ft. Friday night through Saturday night.
• lows 42-36 warming back to 42 Saturday highs 54-72.
• Mostly sunny and a bit warmer Sunday, partly cloudy Sunday night and Monday AM, sunny in the afternoon, clear Monday night,
• Then sunny both Tuesday and Wednesday, clear Tuesday night.
• free air freezing level 13,000 ft. Saturday through Monday, 14,000 ft. Monday night and Tuesday, then 15,000 ft Tuesday night and Wednesday.
• highs near 74 lows 45-48.

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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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