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Sorry, no winner this week. Here is my weekly weather quiz question for the last time. What is “orographic lifting.” Here is the correct answer. ” Orographic Lifting, same as Upslope Flow; occurs when air is forced to rise and cool due to terrain features such as hills or mountains. If the cooling is sufficient, water vapor condenses into clouds. Additional cooling results in rain or snow. It can cause extensive cloudiness and increased amounts of precipitation in higher terrain.” I’ll have a new weekly weather quiz question 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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A high pressure ridge (shaded “arch” shape) is taking over and will dry us out as the trough of low pressure (shaded “U ” shape) slides to the south and east. A weak frontal system will slide down from the north along the the ridge. It won’t be until the middle to the end of next week that another frontal system will move south of us spreading some clouds and rainy weather at us.
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Advisories: A FREEZE WARNING IS IN EFFECT FROM 1 AM UNTIL 8 AM MONDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 8 AM MONDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly clear this evening, mostly cloudy with patchy fog and freezing fog late tonight and early Monday AM, mostly cloudy with a slight (20%) chance of rain in the afternoon and evening, mostly cloudy with patchy fog and freezing fog late Monday night (New Year’s Eve) and early Tuesday AM, partly cloudy Tuesday afternoon (New Year’s Day) and evening, mostly cloudy with patchy fog and freezing fog late at night and Wednesday AM, a mix of clouds and sun in the afternoon, then just mostly cloudy Wednesday night lows 25-29 highs 38-40 cooling to 37 Wednesday. Mostly cloudy with a slight (20%) chance of rain Thursday, a slight (20%) chance of showers at night, mostly cloudy with a slight (20%) chance of showers Friday, mostly cloudy Friday night, then a mix of clouds and sun Saturday and Sunday with mostly cloudy skies and a slight (20%) chance of a showers Saturday night highs 42-47 lows 30-40. (seasonal averages high 45 low 34)
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Forecast for the Umpqua Basin including Roseburg: Partly cloudy with patchy fog and freezing fog late tonight and Monday AM, mostly cloudy with a slight (20%) chance of showers Monday afternoon and evening, partly cloudy with patchy fog and freezing fog late Monday night (New Year’s Eve), areas of AM freezing fog, sunny Tuesday afternoon (New Year’s Day), mostly clear with patchy fog and freezing fog late Tuesday night and Wednesday AM, mostly cloudy with patchy lingering fog in the afternoon, then just partly cloudy Wednesday night lows 30-36 highs 40-42. Mostly cloudy with a slight (20%) chance of rain Thursday, a slight (20%) chance of showers Thursday night and Friday, mostly cloudy with patchy fog and a slight (20%) chance of showers Friday night and Saturday, then mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday highs 48-50 lows near 34-38. (seasonal averages high 48 low 36)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly clear this evening, partly cloudy with patchy fog and freezing fog late tonight and Monday AM, mostly cloudy with a slight (20%) chance of showers in the afternoon and evening, patchy fog and freezing fog late Monday night (New Year’s Eve), areas of AM freezing fog then sunny Tuesday afternoon inland while AM coastal clouds then mostly sunny at the shore in the afternoon (New Year’s Day), mostly clear in the evening, mostly cloudy with patchy fog and freezing fog late Tuesday night and Wednesday AM, mostly cloudy with patchy lingering fog in the afternoon, then partly cloudy with a slight (20%) chance of rain Wednesday night lows 32-35 cooling to 32 Tuesday night then warming to 40 Wednesday night highs 47-50. Mostly cloudy with a slight (20%) chance of rain Thursday, a slight (20%) chance of showers Thursday night, mostly cloudy with a slight (20%) chance of showers Friday through Saturday night, then partly cloudy with a slight (20%) chance of showers Sunday highs near 52 lows near 40. (seasonal averages high 51 low 40)
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Forecast for the Cascades of Lane County: Mostly clear tonight, mostly sunny Monday AM, increasing to mostly cloudy in the afternoon, mostly cloudy with a slight (20%) chance of snow in the evening, mostly clear late Monday night (New Year’s Eve), mostly sunny Tuesday (New Year’s Day), mostly clear Tuesday night, mostly sunny Wednesday, then just partly cloudy Wednesday night free air freezing level 4,000 ft. tonight, 3,500 ft. falling to the surface Monday afternoon and Monday night, 6,000 ft. Tuesday and Tuesday night, 9,000 ft. Wednesday, then 7,500 ft. Wednesday night lows 15-22 highs 30-38. Mostly cloudy with a slight (20%) chance of rain and snow Thursday, a slight (20%) chance of showers Thursday night and Friday, just mostly cloudy Friday night and Saturday, then mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday snow level 4,000 ft. Thursday through Friday, 5,500 ft. Friday night and Saturday, then 4,500 ft. Saturday night and Sunday highs 32-38 lows 22-28.
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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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