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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: AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM TODAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON 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 JACKSON 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 chances of rain back for the second half of 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 couple of 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 patchy fog and freezing fog again this AM, mostly cloudy with a good (50%) chance of showers this afternoon (under 0.10 in. of rain possible), showers in the evening, rain and snow showers likely (60%) late tonight (snow level 1,000 ft. late with up to 2 in. of snow possible, 0.10 in. of rain possible), rain and snow showers Sunday (2 in. of snow possible, 0.25 in. of ran possible), a good (50%) chance of rain or snow showers Sunday night, rain or snow showers likely (60%) Monday (Martin Luther King, Jr. Day), then rain and snow showers likely (60%) Monday night (snow level 1,000 ft.) highs 45-37 warming to 42 Monday lows 28-34. Mostly cloudy with rain and snow likely (60%) Tuesday (snow level 1,000 ft.), mostly cloudy with rain Tuesday night through Thursday, then showers likely (60%) Thursday night and Friday highs 40-49 cooling to 46 Friday lows near 38. (seasonal averages high 47 low 34)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with areas of fog and freezing fog this AM, mostly cloudy with a slight (20%) chance of rain this afternoon, cloudy with rain likely (60%) in the evening, rain and snow showers likely (60%) late tonight (snow level 2,000 ft. falling to 500 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., 2-3 in. of snow possible, 0.15 in. of rain possible), snow showers likely (60%) Sunday evening, rain and snow showers likely (60%) late Sunday night (under 0.10 in. of rain possible), rain and snow showers (snow level 500 ft., under 0.10 in. of rain possible) likely (60%) Monday (Martin Luther King, Jr. Day) and Monday night highs 48-38 lows 32-27 rising to 33 Monday night. Mostly cloudy with rain and snow showers likely (60%) Tuesday, rain and snow Tuesday night, rain Wednesday through Thursday, rain likely (60%) Thursday night, then rain Friday highs 45-53 lows 38-43. (seasonal averages high 50 low 37)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with a slight (20%) chance of rain this afternoon, rain likely (60%) in the evening, coastal showers late tonight with rain and snow showers inland late at night (snow level 2,000 ft. falling to 500 f. late, 0.10 in. of rain possible), mostly cloudy with rain and snow showers (0.35 in. of rain possible) Sunday (1 in. of snow below 1,000 ft. and 3-4 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 and rain and snow showers (under 0.10 in. of rain possible) likely (60%) inland (snow level 500 ft., under 0.10 in. of rain possible) Monday (Martin Luther King, Jr. Day), then showers likely (60%) Monday night highs 49-42 lows 36-34 warming to 37 Monday night. Mostly cloudy with showers likely (60%) Tuesday, rain and windy Tuesday night through Thursday, rain likely (60%) Thursday night, then rain Friday highs 47-53 lows near 44. (seasonal averages high 52 low 40).
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Forecast for the Cascades of Lane County: Mostly cloudy with a slight (20%) chance of rain and snow showers this afternoon, rain and snow showers in the evening, snow showers and colder tonight (2-4 in. of snow possible, 0.10 in. of rain possible), snow showers and colder Sunday (3-7 in. of snow possible), snow showers Sunday night and Monday (Martin Luther King, Jr. Day), then snow showers likely (60%) Monday night snow level 5,000 ft. this afternoon, 3,000 ft. this evening, then at the surface Sunday through Monday night highs 38-18 lows 15-12 warming to near 20 Monday night. Mostly cloudy with snow likely (60%) Tuesday, snow in the evening, rain or snow late Tuesday night and Wednesday AM, rain Wednesday afternoon, rain or snow Wednesday night, rain Thursday, rain or snow showers Thursday night, then rain and snow showers Friday snow level at the surface Tuesday and Tuesday night, 4,000 ft. rising to 6,000 ft. Wednesday, 5,500 ft. Wednesday night, 6,500 ft. Thursday, then 5,500 ft. Thursday night and Friday 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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