The great weather stuck around for the holiday and now we’ll see some changes back to a bit cooler, but dry.

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Here is my weather weather quiz question for this week.  You have probably heard the term “fronts” used to explain the boundaries between cold and warm air masses. Who first coined that term?  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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Advisories: NONE AT THIS TIME.

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A  high pressure ridge (“Arch” shape) is bringing back the sunny and warmer weather. An upper level trough of low pressure “U” shape) will build in from the Northwest toward the end of the week. A  cold front will approach the Pacific Northwest Wednesday bringing temperatures that are a bit cooler.

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Here are your detailed forecasts.**

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Clear tonight, sunny and warm again Tuesday, mostly clear in the evening, becoming partly cloudy Wednesday AM, mostly sunny Wednesday, partly cloudy Wednesday night through Thursday evening, then mostly cloudy Thursday night lows near 50 highs 87-76. Mostly cloudy Friday AM, partly cloudy Friday afternoon and Friday night, then back to mostly sunny days and mostly clear nights Saturday through Monday highs near 77 lows near 50. (seasonal averages high 79 low 50)

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The Pollen forecast for the Eugene/Springfield Area is for  trees to be absent, weeds to be low, and Grass to be high. (Provided by Allergy and Asthma Research Group)

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Forecast for the Umpqua Basin including Roseburg:  Clear tonight, sunny and warmer Tuesday, mostly clear Tuesday night, partly cloudy in the AM, mostly sunny and warmer Wednesday afternoon, mostly clear in the evening, then partly cloudy Wednesday night  through Thursday night lows 54-58 highs 86-90 cooling to near 80 Thursday. Mostly cloudy in the AM, sunny Friday afternoon, mostly clear Friday night, mostly sunny days and mostly clear nights Saturday through Sunday night, then sunny Monday highs 80-84 lows near 52. (seasonal averages high 83 low 54)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Mostly clear tonight, sunny Tuesday, becoming partly cloudy Tuesday evening, mostly cloudy at night with patchy coastal fog late night and early Wednesday AM breaking out to partly cloudy in the afternoon and evening, then mostly cloudy Wednesday night with patchy coastal fog again late at night, patchy fog with a slight chance of drizzle Thursday AM, mostly sunny in the afternoon, then partly cloudy with patchy fog Thursday night lows 50-55 highs 68-63. Partly cloudy with patchy early AM and late night  fog Friday through Saturday, then mostly clear nights with mostly sunny days Saturday night through Monday highs 63-67 lows near 50. (seasonal averages high 66 low 52).

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Forecast for the Cascades of Lane County: Clear tonight, sunny Tuesday,  clear Tuesday night, mostly sunny Wednesday, mostly clear Wednesday night, partly cloudy Thursday and Thursday night free air freezing level 15,000 ft. tonight through Wednesday, falling to 14,000 ft. Wednesday night and Thursday, then 13,000 ft. Thursday night lows 45-50 cooling to 44 Thursday night highs 77-66. Partly cloudy Friday AM breaking out to mostly sunny in the afternoon, mostly clear Friday night, then mostly sunny days and mostly clear nights Saturday through Monday free air freezing level 13,000 ft. Friday and Friday night, rising to 14,000 ft. Saturday through Monday highs near 68 lows near 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 news on-line at EugeneDailyNews.com.

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For more click to continue on to http://timchueyweather4u.com/blog

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