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Tim Chuey Weather

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Tree fell on power,cable, and telephone lines

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No winner this week. Here is my new weekly weather quiz question for the last time. What is the “Urban Heat Island” effect?  The term “heat island effect” describes built up areas that are hotter than nearby rural areas. The annual mean air temperature of a city with 1 million people or more can be 1.8–5.4°F (1–3°C) warmer than its surroundings. In the evening, the difference can be as high as 22°F (12°C). Heat islands can affect communities by increasing summertime peak energy demand, air conditioning costs, air pollution and greenhouse gas emissions, heat-related illness and mortality, and water quality. I’ll have a new weekly weather question for you 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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Advisories:  A FLOOD WARNING REMAINS IN EFFECT FOR THE NEHALEM RIVER NEAR FOSS, THE SIUSLAW RIVER NEAR MAPLETON, THE MARYS RIVER NEAR PHILOMATH, THE LUKIAMUTE RIVER NEAR SUVER, THE TUALATIN RIVER AT DILLEY, THE PUDDING RIVER AT AURORA THE COQUILLE RIVER AT COQUILLE. A FLOOD WARNING REMAINS IN EFFECT UNTIL 6 AM SUNDAY FOR URBAN AREAS AND SMALL STREAMS IN COOS COUNTY. FOR UPDATED DETAILED FLOOD INFORMATION GO TO THE NATIONAL WEATHER SERVICE RIVER WARNINGS.

A WINTER WEATHER ADVISORY IS IN EFFECT FROM 8 PM THIS EVENING UNTIL 8 AM SUNDAY FOR THE NORTH OREGON CASCADES AND THE CASCADES IN LANE COUNTY. A HIGH WIND WARNING IS IN EFFECT UNTIL 8 PM THIS EVENING FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST, NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.

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though of low pressure (“U” shape on the jet stream) is moving eastward toward the Oregon coast. A frontal system is poised to move through the Pacific Northwest overnight tonight followed by another disturbance on Sunday. Another frontal system will push through Tuesday and you know what that means.. a lot more rain on top of the heavy rains we have already experienced.

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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 showers and a slight (20%) chance of thunderstorms this evening and breezy (wind: SW 15-25 mph gusts to 35 mph late tonight) showers (0.25 in. of rain possible, more in storms) late tonight, showers Sunday (0.10 in. of rain possible), mostly cloudy with a good (50%) chance of showers Sunday evening, a slight (20%) chance of showers late Sunday night (under 0.10 in of rain possible), mostly cloudy Monday and just a bit warmer, cloudy Monday night with a good (50%) chance of rain late, rain Tuesday, then cloudy with a good (50%) chance of rain Tuesday night lows 38-43 cooling to  35 Tuesday night highs 48-60 cooling to near 50 Tuesday. Mostly cloudy with a good (50%) chance of showers Wednesday through Thursday, a (40%) chance of showers Thursday night, a good (50%) chance of showers Friday, a (40%) chance of showers Friday night, then mostly cloudy with a (30%) chance of showers Saturday highs 52-50 lows near 38. (seasonal averages high 58 low 38)

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Forecast for the Umpqua Basin including Roseburg:  Mostly cloudy with isolated thunderstorms this evening, widespread rain and snow showers (snow level 3,000 ft. falling to 2,000 ft. late, 1 in. of snow possible, .50 in. of rain possible) late tonight, scattered rain and snow showers Sunday (snow level 2,000 ft., 0.50 in. of rain possible), cloudy with a slight (20%) chance of  showers Sunday evening, partly cloudy late Sunday night, just mostly cloudy Monday, mostly cloudy with a (30%) chance of rain late Monday night, rain Tuesday, then mostly cloudy with showers likely (60%) and colder late Tuesday night lows 39-44 cooling to 37 Tuesday night highs 53-63 cooling to 54 Tuesday. Mostly cloudy with showers likely (60%) Wednesday, rain and snow showers likely (60%) Wednesday night and Thursday, cloudy with a good (50%) chance of rain and snow showers Thursday night, mostly cloudy with a good (50%) chance of showers Friday, a (40%) chance of rain and snow showers Friday night, then mostly cloudy with a (40%) chance of showers Saturday highs 53-56 lows 36-40. (seasonal averages high 59 low 40)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with showers tonight (snow level 2,000 ft.late, 0.25 in. of rain possible) and breezy (wind: S 10-25 early this evening NW 20-30 mph late evening and early AM shifting W 10-20 at the shore, W 10-20 mph late this evening and early AM inland), mostly cloudy with showers Sunday (snow level 2,000 ft., 0.10 in. of rain possible), a good (50%) chance of showers Sunday night (under 0.10 in. of rain possible) and breezy (wind: S 15-25 mph at the shore and S 10-20 mph inland), just mostly cloudy Monday and breezy (wind: S 20-30 mph at the shore and S 10-15 mph increasing to 20-25 mph in the afternoon inland, with gusts to 40 mph),  mostly cloudy Monday night with a slight (20%) chance of evening coastal rain and rain likely (60%) late at the shore, a (40%) chance of rain inland, windy (wind: S 20-20 mph gusts to 45 mph), rain Tuesday, then mostly cloudy with showers likely (60%) Tuesday night lows 40-38 highs 52-56 cooling to near 50 Tuesday. Mostly cloudy with showers likely (60%) Wednesday through Thursday, cloudy with a good (50%) chance of showers Thursday night, then mostly cloudy with a (40%) chance of showers Friday through Saturday highs 52-50 lows 38-40. (seasonal averages high 54 low 42).

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Forecast for the Cascades of Lane County: Mostly cloudy with rain or snow showers (4-8 in. of snow possible, 0.50 in. of rain possible) tonight and windy (wind: SW 20-30 mph gusts to 50 mph), snow showers Sunday (2 in. of snow possible), a (40%) chance of evening rain and snow showers, a slight (20%) chance of rain and snow showers (under 0.10 in. of rain possible) late Sunday night, mostly cloudy and just a bit warmer Monday, a slight (20%) chance of rain Monday night, then mostly cloudy with rain and snow likely (60%) Tuesday and Tuesday night snow level 2,500 ft. tonight, at the surface Sunday, 2,500 ft. Sunday night, free air freezing level 5,000 ft. Monday, snow level 6,000 ft. Monday night, 5,000 ft. Tuesday, then 3,500 ft. Tuesday night lows 23-32 cooling to near 25 Tuesday night highs 33-46. Mostly cloudy with rain and snow showers likely (60%) Wednesday and Wednesday night, a good (50%) chance of snow showers Thursday through Saturday snow level 2,500 ft. Wednesday and Wednesday night, at the surface Thursday, 3,000 ft. Thursday night and Friday, then 3,500 ft. Friday night and Saturday highs 40-34 warming to  lows 23-36.

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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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