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Advisories: NONE AT THIS TIME.

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A  ridge of high pressure (“Arch” shape on orange line) has moved out as a trough of low pressure (“U” shape moving in behind) sends moist cooler air our way. A frontal system has taken its time pushing through and will be followed by another cold front that is trailing behind.

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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: Mostly cloudy with a good (50%) chance of showers this evening (0.10 in. of rain possible), a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible), a mix of clouds and sun Sunday AM, mostly cloudy in the afternoon, cloudy with a (40%) chance of rain in the evening, rain likely (60%) late Sunday night (0.25 in. of rain possible), rain Monday AM, showers in the afternoon, showers likely (60%) Monday night and Tuesday, then rain Tuesday night lows 46-53 cooling to 46 Tuesday night highs 70-64. Mostly cloudy with showers Wednesday, showers likely (60%) Wednesday night, cloudy with a good (50%) chance of showers Thursday and Thursday night, a (30%) chance of showers Friday, mostly cloudy with a slight (20%) chance of showers Friday night, then partly cloudy with a slight (20%) chance of showers Saturday highs 60-65 lows near 48. (seasonal averages high 71 low 44)

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a (30%) chance of showers tonight, mostly cloudy with a slight (20%) chance of rain Sunday afternoon, cloudy with a (40%) chance of rain in the evening, rain late Sunday night, rain likely (60%) Monday AM, showers in the afternoon, showers likely (60%) Monday night, rain likely (60%) Tuesday, then rain Tuesday night lows near 49 highs 72-60. Mostly cloudy with showers Wednesday and Wednesday night, a (40%) chance of showers Thursday, cloudy with a (30%) chance of showers Thursday night, then mostly cloudy with a slight (20%) chance of showers Friday through Saturday highs 60-72 lows 45-50. (seasonal averages high 73 low 48)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with  a slight  (20%) chance of showers tonight, mostly cloudy with a (30%) chance of rain Sunday afternoon, a slight (20%) chance of rain inland Sunday afternoon, inland rain likely (60%) in the evening, then rain late at night with coastal rain Sunday night, rain Monday, showers Monday night, then rain Tuesday and Tuesday night lows 52-47 highs 63-59. Mostly cloudy with showers Wednesday, showers likely (60%) Wednesday night, mostly cloudy with a (40%) chance of showers Thursday, cloudy with a (30%) chance of showers Thursday night, then mostly cloudy with a slight (20%) chance of showers Friday through Saturday highs 59-64 lows near 49. (seasonal averages high 63 low 48).

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Forecast for the Cascades of Lane County: Mostly cloudy with  showers likely (60%) and a slight (20%) chance of thunderstorms this evening, a slight (20%) chance of showers late tonight (0.10 in. of rain possible, more in thunderstorms), a mix of clouds and sun Sunday, mostly cloudy with a slight (20%) chance of evening rain, a good (50%)  chance of rain late Sunday night, rain Monday, showers Monday night, showers likely (60%) Tuesday, then showers likely (60%) Tuesday night snow level 8,000 ft. tonight, free air freezing level 10,000 ft. Sunday, snow level 8,000 ft. Sunday night, 7,000 ft. Monday and Monday night, 6,000 ft. Tuesday, then 6,500 ft. Tuesday night lows 39-34 highs 57-47 warming to 56 Tuesday. Mostly cloudy with showers Wednesday, rain and snow showers likely (60%) Wednesday night, a good (50%) chance of showers Thursday and Thursday night, mostly cloudy with a (30%) chance of showers Friday and Friday night, then partly cloudy with a slight (20%) chance of showers Saturday snow level 5,500 ft. Wednesday, 5,000 ft. Wednesday night, 6,000 ft. Thursday and Thursday night, 7,000 ft. Friday, then above 8,000 ft. Friday night and Saturday highs 43-55 lows 35-38.

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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 Eugene Daily News.com.

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Sorry, but no winner this week.

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Here is my weekly weather quiz question one more time. On August 25, 1814 our nation’s capital was in the possession of the British Army. Many public buildings were in flames by the hands of the invading army, but something else caused major structural damage to the residential section of the city. More British soldiers were killed and injured by this event than by the American forces. What happened? Here is the answer. A tornado smashed through the center of Washington, D.C. causing all of that damage. I’ll have a new weekly weather quiz question for you starting next 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.

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Your Saturday College Football Forecast:

The Beavers vs Arizona State in Tempe, Arizona: Kickoff at 7:30 PM Mostly clear 97 cooling to near 87 by the end of the game.

[The Ducks have a Bye this weekend. Next game Thursday October 6th vs California at Autzen Stadium : Kickoff 6 PM.]

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Advisories: NONE AT THIS TIME.

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A  ridge of high pressure (“Arch” shape on orange line) has moved out as a trough of low pressure (“U” shape moving in behind) sends moist cooler air our way. A frontal system is taking its time pushing through and will be followed by others proving that Autumn is really here.

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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: Mostly cloudy with a slight (20%) chance of showers this AM, a good (50%) chance of showers this afternoon and evening (0.10 in. of rain possible), a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible), a mix of clouds and sun Sunday, cloudy with a (40%) chance of rain in the evening, rain likely (60%) late Sunday night, rain Monday, showers likely (60%) Monday night highs 67-70 cooling to 64 Monday lows 45-52. Mostly cloudy with showers likely (60%) Tuesday, rain Tuesday night, showers Wednesday, showers likely (60%) Wednesday night through Thursday night, then mostly cloudy with a (30%) chance of showers Friday highs 64-60 warming to 63 Friday lows near 48. (seasonal averages high 71 low 44)

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a slight (20%) chance of rain this AM,  showers likely (60%) in the afternoon, a (30%) chance of showers tonight, mostly cloudy with a slight (20%) chance of rain Sunday afternoon, cloudy with rain likely (60%) late Sunday night and Monday, showers likely (60%) Monday night highs 69-74 cooling to 68 Monday lows near 49. Mostly cloudy with showers likely (60%) Tuesday AM, showers Tuesday afternoon, rain Tuesday night, showers Wednesday, cloudy with showers likely (60%) Thursday and Thursday night, mostly cloudy Friday AM, and partly cloudy in the afternoon with a (30%) chance of showers highs 65-69 lows near 48. (seasonal averages high 73 low 48)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with rain this AM, showers likely (60%) this afternoon, a (30%) chance of showers tonight, a (30%) chance of coastal rain Sunday, a slight (20%) chance of rain inland Sunday afternoon,  and night coastal rain likely (60%) in the evening, a good (50%) chance of evening rain inland and rain late Sunday night, rain Monday AM, showers likely (60%) Monday afternoon and night highs 63-59 lows near 50. Mostly cloudy with showers Tuesday, rain Tuesday night, showers Wednesday and Wednesday night, mostly cloudy with showers likely (60%) Thursday and Thursday night, then a (30%) chance of showers Friday highs 59-63 lows near 50. (seasonal averages high 63 low 48).

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Forecast for the Cascades of Lane County: Mostly cloudy with a slight (20%) chance of showers this AM, showers likely (60%) and cooler this afternoon (0.10 in. of rain possible), a (40%) chance of showers in the evening, a slight (20%) chance of showers late tonight (0.10 in. of rain possible), a mix of clouds and sun Sunday AM, mostly cloudy with a slight (20%) chance of evening rain, rain likely (60%) late Sunday night and Monday AM, then rain in the afternoon and showers Monday night snow level above 8,000 ft. today, 8,000 ft. late tonight, free air freezing level 10,000 ft. Sunday, snow level 8,000 ft. Sunday night, 7,000 ft. Monday, then 8,000 ft. Monday night highs 56-50 warming to 54 Monday lows near 38. Mostly cloudy with showers likely (60%) Tuesday, rain Tuesday night, showers Wednesday, showers likely (60%) Wednesday night and Thursday, a good (50%) chance of showers Thursday night, mostly cloudy Friday with a (30%) chance of showers Friday snow level 7,000 ft. Tuesday, 6,500 ft. Tuesday night, then 6,000 ft. Wednesday through Friday highs 55-42 warming to near 50 Friday lows 34-37.

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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 news on-line at Eugene Daily News.com.

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