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Sorry, no winner this week.
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Here is this week’s weather quiz question for the last time. Who was the first scientist to use the term “greenhouse effect” to describe how the Earth is able to keep warm? Here is the answer. The Swedish chemist Svante Arrhenius reportedly was the first scientist to use the term “greenhouse effect.” He used it in an article describing how carbon dioxide in the air keeps the Earth warmer than it would otherwise be. His article helped solve the scientific mystery of why the earth is warm enough to sustain life. 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.
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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT THROUGH 4 PM SUNDAY FOR THE NORTH OREGON COAST, THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF OREGON, THE WESTERN COLUMBIA RIVER GORGE, THE NORTH OREGON CASCADE FOOTHILLS, THE ENTIRE I-5 CORRIDOR FROM PORTLAND THROUGH EUGENE AND SPRINGFIELD, AND THE NORTH OREGON CASCADES (NOT INCLUDING THE CASCADES OF LANE COUNTY.). A WINTER WEATHER ADVISORY IS IN EFFECT ABOVE 500 FT. FROM 10 PM TONIGHT THROUGH 10 PM SUNDAY NIGHT FOR THE NORTH CENTRAL AND SOUTH OREGON COAST, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND FROM 4 AM UNTIL 10 PM SUNDAY FOR JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES AND THE SISKIYOU MOUNTAINS. A WIND ADVISORY IS IN EFFECT UNTIL 4 AM SUNDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND NORTHERN, CENTRAL, AND WESTERN LAKE COUNTY.
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An upper level low pressure trough (“U” shape on yellow line) has taken over by sending a frontal system through Oregon bringing the rain back for the weekend and there will also be snow mixed in with it, then another wave on Monday all of which could have snow levels down low enough to give us at least a dusting of snow on the valley floor and possibly a few inches between 500 ft. and 1,000 ft. before it turns to rain Tuesday. Mt. Ashland is closed now due to poor snow conditions. Hoodoo is open (as usual closed Wednesdays). Willamette Pass will be open on a limited basis for the this weekend both today and Sunday, and again on Monday for the Martin Luther King, Jr. holiday. Please check their web sites for the latest details and updates as the new storms could improve the snowpack for skiing.
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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 likely (60%) this evening, rain or snow showers likely (60%) late tonight (snow level 1,000 ft. this evening with up to 1 in. of snow possible, 0.10 in. of rain possible), rain or snow showers Sunday (1-2 in. of snow possible, 0.25 in. of rain possible), a good (50%) chance of rain or snow showers (under 0.10 in. of rain possible) Sunday night, a mix of clouds and sun with a (40%) chance of rain or snow showers Monday AM (Martin Luther King, Jr. Day), rain or snow showers likely (60%) in the afternoon (0.10 in. of rain possible), rain or snow showers Monday night (0.25 in. of rain possible) and Tuesday, then rain Tuesday night lows 30-27 warming to near 37 Tuesday night highs 40-37 warming to 44 Tuesday. Mostly cloudy with rain Wednesday through Thursday, showers Thursday night, showers likely (60%) Friday, rain likely (60%) Friday night, then showers likely (60%) Saturday highs 48-50 lows near 39. (seasonal averages high 47 low 34)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain likely (60%) this evening, rain and snow showers likely (60%) late tonight (snow level 2,500 ft. falling to 1,000 ft. late, 1 in. of snow possible, under 0.10 in. of rain possible), AM snow showers, rain and snow showers Sunday afternoon (snow level 500 ft., 1-2 in. of snow possible, 0.15 in. of rain possible), rain and snow showers likely (60%) Sunday evening, snow showers likely (60%) late Sunday night (1 in. of snow possible, under 0.10 in. of rain possible), a good (50%) chance of AM rain and snow showers, rain and snow showers (snow level 500 ft., under 0.10 in. of rain possible) likely (60%) Monday afternoon (Martin Luther King, Jr. Day) and Monday night (0.25 in. of rain possible), mostly cloudy with rain and snow showers Tuesday and Tuesday evening, then rain and snow Tuesday night lows 32-27 rising to near 40 Tuesday night highs 38-45. Mostly cloudy with rain Wednesday through Saturday highs 52-46 lows near 40. (seasonal averages high 50 low 37)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with rain likely (60%) this evening, coastal showers late tonight with rain and snow showers inland late at night (snow level 1,000 ft. late tonight, 1 in. of snow possible, 0.10 in. of rain possible), mostly cloudy with rain and snow showers (0.35 in. of rain possible) Sunday (snow level 500 ft., 1-2 in. of snow below 1,000 ft. and 2-3 in. of snow above 1,000 ft.), coastal evening rain and snow showers likely (60%) with showers late and rain and snow showers likely (60%) inland Sunday night (snow level 500 ft., 0.10 in. of rain possible), mostly cloudy with coastal showers likely (60%) in the evening and rain and snow showers (under 0.10 in. of rain possible) likely (60%) late, rain and snow showers likely (60%) inland (snow level 500 ft., 1 in. of snow possible, under 0.10 in. of rain possible), a good (50%) chance of AM rain and snow showers inland with rain and snow showers (snow level 500 ft., 0.15 in/ of rain possible) in the afternoon (Martin Luther King, Jr. Day), evening coastal showers likely (60%) with showers late Monday night, rain and snow showers inland (snow level 1,000 ft. rising to 1,500 ft. late at night), mostly cloudy with showers Tuesday and Tuesday evening, then rain late Tuesday night lows 35-45 highs 43-49. Mostly cloudy and windy with rain Wednesday and Wednesday night, rain and breezy Thursday, rain Thursday night through Friday night, then mostly cloudy and breezy with rain again Saturday highs 43-49 lows 46-40. (seasonal averages high 52 low 40).
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Forecast for the Cascades of Lane County: Mostly cloudy with rain or snow showers likely (60%) this evening, snow showers and colder late tonight (1-2 in. of snow possible, 0.10 in. of rain possible), snow showers and colder Sunday (2-4 in. of snow possible), snow showers Sunday night (1-3 in. of snow possible) and Monday (Martin Luther King, Jr. Day), snow in the evening, snow showers late Monday night and breezy, snow showers Tuesday, then snow Tuesday night snow level 3,000 ft. this evening, then at the surface Sunday through Tuesday night lows 17-12 warming to near 24 Tuesday night highs 22-18 warming to near 27 Tuesday. Mostly cloudy with rain and snow Wednesday AM, rain in the afternoon, rain and snow Wednesday night, rain Thursday, showers Thursday night, showers likely (60%) Friday, rain and snow and breezy Friday night, then rain and snow showers and breezy Saturday snow level 3,500 ft. rising to 6,000 ft. Wednesday afternoon, 5,500 ft. Wednesday night, 6,500 ft. Thursday, 6,000 ft. Thursday night, 6,500 ft. Friday, then 5,500 ft. Friday night and Saturday highs near 38 lows 25-28.
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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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