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Check out my latest Eugene Daily News Weather Or Not Column A Book Report, Really?

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And don’t forget my latest feature story in the continuing series on service club organizations called “Buffalo Isn’t Only Known For Its Wings.”

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Here is my weekly weather quiz question for the last time. What is an “occluded front?” Now, here is the correct answer. An Occluded Front is a composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front. Two types of occlusions can form depending on the relative coldness of the air behind the cold front to the air ahead of the warm or stationary front. A cold occlusion results when the coldest air is behind the cold front and a warm occlusion results when the coldest air is ahead of the warm front. I’ll have a new weekly weather quiz question for you starting Monday. 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 pressure ridge (Shaded “Arch” shape with blue arrows) has warmed us up and dried us out. A frontal system will do little more than cool us off a bit as it passes through by Tuesday AM. The chance of rain could return between Friday and Saturday.

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Advisories:

• THE HEALTH ADVISORIES ISSUED FOR THE PRESENCE OF BLUE-GREEN ALGAE IN CULLABY LAKE JUST OFF HWY 101 BETWEEN ASTORIA AND SEASIDE IN CLATSOP COUNTY OREGON, WALTERVILLE POND IN LANE COUNTY AND THE LOWER WILLAMETTE RIVER FROM THE SOUTH END OF ROSS ISLAND DOWNSTREAM TO THE SOUTH END OF SAUVIE ISLAND IN MULTNOMA COUNTY  HAVE BEEN LIFTED.
• A HEALTH ADVISORY CONTINUES FOR THE PRESENCE OF BLUE-GREEN ALGAE  IN WICKIUP RESERVOIR IN DESCHUTES COUNTY, 40 MILES SW OF BEND, FOR TENMILE LAKES IN COOS COUNTY, AND AT DEVILS LAKE IN LINCOLN COUNTY. THE TOXIC ALGAE BLOOM MEANS THAT PEOPLE SHOULD NOT DRINK OR HAVE DIRECT CONTACT WITH THE AFFECTED WATER AND THAT ALSO GOES FOR ANY PETS.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 47 in the Good category measuring Particulate Matter at HWY 99, Eugene. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 20 in the Good category measuring Particulate Matter at Willamette Activity Center, Oakridge. Data 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:

• Patchy AM fog, mostly sunny in the afternoon, mostly clear at night both today and Monday, partly cloudy with patchy fog Monday night,
• Patchy AM fog, partly cloudy Tuesday and Tuesday night.
• highs 84-78 lows 49-52.
• Partly cloudy Wednesday and Wednesday night,
• A mix of clouds and sun Thursday and Friday, partly cloudy Thursday night, mostly cloudy with a slight (20%) chance of rain Friday night,
• Then mostly cloudy with a (30%) chance of rain Saturday.
• highs near 74 lows 48-52. (seasonal averages high 70 low 43).

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Forecast for the Umpqua Basin including Roseburg:

• Patchy AM fog, sunny in the afternoon, clear with patchy fog late at night both today and Monday,
• Partly cloudy with patchy AM fog, mostly sunny Tuesday afternoon, then mostly clear Tuesday night.
• highs 88-80 lows 50-46.
• Partly cloudy Wednesday through Friday AM, mostly cloudy with a slight (20%) chance of rain Friday afternoon, mostly cloudy with a (40%) chance of rain Friday night and Saturday AM, then a (40%) chance of showers Saturday afternoon.
• highs near 75 lows 47-53. (seasonal averages high 72 low 47)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Patchy AM fog, sunny this afternoon, mostly clear this evening, patchy fog late tonight,
• Partly cloudy with patchy AM fog, sunny Monday afternoon, mostly clear in the evening, patchy fog with patchy coastal drizzle late Monday night.
• Mostly cloudy with patchy AM fog and patchy coastal drizzle, sunny Tuesday afternoon, then partly cloudy Tuesday night.
• highs 73-68 lows 57-52.
• Partly cloudy Wednesday through Thursday evening, mostly cloudy late at night,
• Mostly cloudy with a (30%) chance of rain Friday through Saturday AM, then mostly cloudy with a (30%) chance of showers Saturday afternoon.
• highs near 67 lows 47-55. (seasonal averages high 63 low 47)

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Forecast for the Cascades in Lane County:

• Sunny today and Monday, clear tonight, mostly clear Monday night,
• Mostly sunny Tuesday, then mostly clear Tuesday night.
• free air freezing level 14,000 ft. rising to 15,000 ft. today, 15,000 ft. rising to 16,000 ft. tonight, 16,000 ft. falling to 15,000 ft. Monday, 15,000 ft. Monday night and Tuesday, then 14,000 ft. Tuesday night.
• highs 79-72 lows 43-45 cooling back to 43 Tuesday night.
• Partly cloudy Wednesday through Friday, then mostly cloudy with a slight (20%) chance of rain Friday night and a (30%) chance of rain Saturday.
• free air freezing level 13,000 ft. Wednesday, 12,000 ft. Wednesday night through Friday, snow level above 8,000 ft. Friday night and Saturday.
• highs 66-63 warming to back to 66 Saturday cooling back to 63 lows 42-45.

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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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