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Advisories: A HIGH WIND WARNING IS IN EFFECT FROM 1 AM UNTIL 1 PM MONDAY FOR CENTRAL AND EASTERN LAKE COUNTY.

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A frontal system will move into Oregon early by Monday AM bringing more wet weather with it. A weak upper level high pressure ridge (“Arch” shape on yellow line) will form holding off the next storm for a day or so. Another frontal system will be pushed in by Wednesday by an upper level low (“U” shape on yellow line), so the first week of the New Year with see even more rain. Mt. Ashland is open. Hoodoo is officially open this week (closed Wednesday). Still not enough snow yet for Willamette Pass to open for skiing. Please check their web sites for the latest details and updates.

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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 patchy fog late tonight, cloudy with a good (50%)  chance of rain Monday AM, rain likely (60%) in the afternoon (0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers Monday evening, mostly cloudy Tuesday, cloudy Tuesday night, cloudy with a good (50%) chance of rain Wednesday, then rain likely (60%) Wednesday night lows 36-42 cooling to near 35 Tuesday night then up to near 40 Wednesday night highs 49-52.  Mostly cloudy with rain likely (60%) Thursday, cloudy with a (40%) chance of showers Thursday night, mostly cloudy with a (40%) chance of showers Friday and Friday night, mostly cloudy with a good (50%) chance of showers Saturday, then cloudy with a good (50%) chance of rain Saturday night and Sunday highs near 46 lows 36-38. (seasonal averages high 46 low 34)

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Forecast for the Umpqua Basin including Roseburg: Partly cloudy with patchy fog and a (40%) chance of rain late tonight and early Monday AM, showers likely (60%) in the afternoon (under 0.10 in. of rain possible), mostly cloudy Monday night with areas of fog late at night and Tuesday AM, mostly cloudy in the afternoon, then mostly cloudy with areas of fog late Tuesday night and Wednesday AM, mostly cloudy with a good (50%) chance of rain Wednesday afternoon, then rain Wednesday night lows 38-42 highs 50-48. Mostly cloudy with showers likely (60%) Thursday, cloudy and colder with a good (50%) chance of showers Thursday night, mostly cloudy with a (40%) chance of rain and snow showers Friday and Friday night (colder at night), cloudy with a good (50%) chance of rain, drizzle, and snow showers Saturday, just mostly cloudy Saturday night, then mostly cloudy with a slight (20%) chance of rain Sunday highs 49-43 lows 36-34. (seasonal averages high 48 low 36)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy with patchy fog and rain late tonight and windy (wind: SE 5-10 increasing to S 20-30 mph at the shore, SE 5-10 mph, increasing to S 15-25 mph inland late tonight), mostly cloudy with rain Monday AM, showers likely (60%) in the afternoon (0.10 in. of rain possible) and windy (wind: S 20-30 mph gusts to 45 mph decreasing to S 15-20 mph in the afternoon), mostly cloudy with areas of fog late at night and early Tuesday AM, just mostly cloudy Tuesday afternoon, cloudy Tuesday night, areas of patchy fog Wednesday AM, mostly cloudy with rain likely (60%) Wednesday afternoon, then rain Wednesday night lows 42-45 highs 52-55. Mostly cloudy with showers likely (60%) Thursday, cloudy with a (40%) chance of showers Thursday night, mostly cloudy with a good (50%) chance of showers Friday and Friday night, cloudy with a (40%) chance of rain and drizzle Saturday, mostly cloudy Saturday night, then mostly cloudy with a slight (20%) chance of rain Sunday highs near 50 lows 38-35. (seasonal averages high 51 low 40).

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Forecast for the Cascades of Lane County: Partly cloudy  and breezy (wind: SW 15-20 mph gusts to 35 mph along the ridges) tonight, cloudy with a good (50%) chance of AM rain, rain likely (0.10 in. of rain possible) in the afternoon and breezy (wind: SW 15-20 mph gusts to 40 mph along the ridges), mostly cloudy with a (30%) chance of rain or snow in the evening (under 0.10 in. of rain possible), a mix of clouds and sun Tuesday AM, mostly cloudy in the afternoon, cloudy Tuesday night, cloudy with a (40%) chance of rain Wednesday AM, a good (50%) chance of rain in the afternoon, then rain Wednesday night free air freezing level 9,000 ft. tonight, snow level 6,500 ft. Monday, 5,000 ft. Monday night, free air freezing level 7,000 ft. Tuesday, 9,000 ft. Tuesday night, then snow level 7,000 ft. Wednesday and Wednesday night lows 28-32 highs 36-45. Mostly cloudy with rain and snow likely (60%) Thursday, cloudy with a good (50%) chance of rain and snow showers Thursday night, mostly cloudy with a good (50%) chance of snow showers Friday and Friday night, a good (50%) chance of snow showers Saturday, then cloudy with a (40%) chance of rain and snow Saturday night and Sunday snow level 4,500 ft. Thursday, 3,500 ft. Thursday night, 2,500 ft. Friday through Saturday, 5,500 ft. Saturday night, then 6,500 ft. Sunday highs 36-32 warming to near 35 Saturday lows 29-26.

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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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Advisories: A HIGH WIND WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST, AND THROUGH MONDAY AFTERNOON FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.

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The jet stream has positioned itself to send a strong fetch of moisture to the Pacific Northwest. Weak high pressure (“Arch” shape on the yellow line) in the upper atmosphere will hold off the next surface system until very late tonight or Monday AM, if we are lucky. A frontal system will move into Oregon between late tonight and early Monday AM bringing more wet weather with it. Another frontal system will push in Tuesday so the first week of the New Year with see even more rain. Mt. Ashland was open Saturday and plans to be open today. Hoodoo is open today 9 AM-4 PM with limited operations. Still not enough snow yet for Willamette Pass to open for skiing. Please check their web sites for the latest details and updates.

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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 patchy fog this AM (New Year’s Day), mostly cloudy this afternoon and tonight, cloudy with rain likely (60%) Monday (0.10 in. of rain possible), mostly cloudy with a (40%) chance of showers Monday evening, a slight (20%) chance of showers late Monday night, mostly cloudy Tuesday, then cloudy Tuesday night highs 45-50 lows 36-42 cooling to near 35 Tuesday night. Cloudy with a good (50%) chance of rain Wednesday, rain likely (60%) Wednesday night and Thursday, then cloudy with a good (50%) chance of rain Thursday night through Saturday highs 52-45 lows 40-37. (seasonal averages high 45 low 34)

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with patchy fog and freezing fog this AM, partly cloudy  to mostly sunny this afternoon (New Year’s Day) with some lingering afternoon fog, partly cloudy tonight this evening, patchy fog with rain becoming likely (60%) tonight and early Monday AM, showers in the afternoon, mostly cloudy Monday night with areas of fog late at night and Tuesday AM, mostly cloudy in the afternoon, then mostly cloudy with areas of fog late Tuesday night highs 49-52 cooling to 48 Tuesday lows 35-39. Areas of fog Wednesday AM, cloudy with a (40%) chance of rain Wednesday afternoon, rain Wednesday night, showers likely (60%) Thursday, cloudy and colder with a good (50%) chance of showers Thursday night, mostly cloudy with a good (50%) chance of rain and snow showers Friday and Friday night, then cloudy with a good (50%) chance of rain and snow Saturday highs 49-45 lows 40-30. (seasonal averages high 48 low 36)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with areas of  fog early this AM, partly cloudy cloudy to mostly sunny with some lingering fog this afternoon (New Year’s Day),  party cloudy in the evening, mostly cloudy with patchy fog and a good (50%) chance of coastal rain and possible thunderstorms late tonight, partly cloudy with a (40%) chance of showers inland late tonight, breezy inland (wind: SE 5-10 mph increasing to S 15-25 mph late at night), windy (wind: SE 5-10 mph increasing to S 20-30 mph at the shore late), coastal rain and a slight (20%) chance of thunderstorms Monday AM, AM rain with showers likely (60%) inland in the afternoon and windy (S 20-30 mph gusts to 45 mph shifting to SW 15-20 mph in the afternoon), mostly cloudy with a slight (20%) chance of coastal showers Monday evening with areas of fog late at night and early Tuesday AM, just mostly cloudy Tuesday afternoon, then cloudy with a slight (20%) chance of rain Tuesday night with patchy fog late highs 56-50 lows near 43. Areas of fog Wednesday AM, cloudy with a good (50%) chance of rain Wednesday afternoon, rain Wednesday night, showers likely (60%) Thursday, cloudy with a (40%) chance of showers Thursday night, mostly cloudy with a good (50%) chance of showers Friday and Friday night, then mostly cloudy with rain likely (60%) Saturday highs 54-47 warming to near 52 Saturday lows 43-30. (seasonal averages high 51 low 40).

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Forecast for the Cascades of Lane County: A mix of clouds and sun today (New Year’s Day), partly cloudy tonight, cloudy with a good (50%) chance of AM rain, rain likely (0.10 in. of rain possible) in the afternoon and breezy (wind: S 15-25 mph gusts to 40 mph), mostly cloudy with a (40%) chance of showers in the evening, a slight (20%) chance of late Monday night, a mix of clouds and sun Tuesday AM, cloudy Tuesday, mostly cloudy in the afternoon, then cloudy Tuesday night free air freezing level 9,000 ft. today, 7,500 ft. tonight, snow level 6,000 ft. Monday, 5,000 ft. Monday night, free air freezing level 7,500 ft. Tuesday, then 9,000 ft. Tuesday night highs 43-36 warming to near 40 Tuesday lows near 28. Cloudy with a (40%) chance of rain Wednesday, rain likely (60%) Wednesday night, rain or snow likely (60%) Thursday, cloudy with a good (50%) chance of rain or snow Thursday night, rain or snow likely (60%) Friday, cloudy with a good (50%) chance of rain or snow Friday night, then rain or snow likely (60%) Saturday snow level above 8,000 ft. Wednesday, 7,000 ft. Wednesday night, 5,000 ft. Thursday, 3,000 ft. Thursday night, 2,500 ft. Friday, 3,000 ft. Friday night, then 2,500 ft. Saturday highs 45-32 warming to near 35 Saturday lows 32-26.

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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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