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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 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, that is mainly south of us, will bring a few showers mainly to our south as some showers slide down from the north along the leading edge of 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: NONE AT THIS TIME.
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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, mostly sunny this afternoon, partly cloudy with patchy freezing fog late tonight, mostly cloudy with patchy fog early Monday AM, partly cloudy Monday afternoon, mostly cloudy in the evening, partly cloudy Monday night, patchy AM fog and freezing fog, partly cloudy Tuesday (New Year’s Day), partly cloudy at night with patchy fog late highs 40-36 lows 25-30. A mix of clouds and sun Wednesday, mostly cloudy with a slight (20%) chance of rain Wednesday night through Thursday night, then a mix of clouds and sun Friday and Saturday with partly cloudy skies Friday night highs 39-45 lows 30-38. (seasonal averages high 45 low 33)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with patchy freezing fog this AM, mostly sunny this afternoon, mostly clear in the evening, partly cloudy with patchy freezing fog late tonight and Monday AM with a slight (20%) chance of AM snow showers (snow level 2,500 ft.), mostly cloudy with a slight (20%) chance of showers Monday afternoon and evening, mostly clear with patchy fog late Monday night, areas of AM freezing fog, sunny Tuesday afternoon (New Year’s Day), then mostly clear with patchy freezing fog late Tuesday night highs 47-42 warming to 46 Tuesday lows 32-28 warming to 32 Tuesday night. Areas of AM freezing fog, mostly cloudy Wednesday, mostly cloudy with a slight (20%) chance of rain Wednesday night through Friday, then partly cloudy with a slight (20%) chance of showers Friday night and Saturday highs 44-46 lows near 34-37. (seasonal averages high 48 low 36)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with patchy fog this AM, mostly sunny in the afternoon, mostly clear with patchy fog and freezing fog late tonight and Monday AM, mostly cloudy in the evening, clearing with patchy fog and freezing fog late Monday night and Tuesday AM, mostly sunny Tuesday afternoon (New Year’s Day), clear in the evening, then mostly cloudy with patchy fog and freezing fog Tuesday night highs 47-50 lows 34-30 warming to 35 Tuesday night. Areas of AM fog, mostly cloudy Wednesday, a slight (20%) chance of rain Wednesday night and Thursday, a (30%) chance of rain Thursday night, mostly cloudy with a slight (20%) chance of rain Friday, then partly cloudy with a slight (20%) chance of rain Friday night and Saturday highs 50-48 lows 39-42. (seasonal averages high 51 low 40)
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Forecast for the Cascades of Lane County: Partly cloudy this AM, mostly sunny this afternoon, mostly clear tonight, mostly sunny Monday AM, partly cloudy with a slight (20%) chance of snow in the afternoon, partly cloudy with a slight (20%) chance of rain and snow in the evening, partly cloudy Monday night, mostly sunny Tuesday (New Year’s Day), mostly clear Tuesday night free air freezing level at the surface today, 4,000 ft. tonight, snow level at the surface Monday, 2,500 ft. Monday night, then free air freezing level 6,000 ft. Tuesday and Tuesday night highs 30-27 warming to 32 Tuesday lows 15-24. Partly cloudy Wednesday and Wednesday night, a mix of clouds and sun with a slight (20%) chance of rain and snow Thursday, mostly cloudy with a slight (20%) chance of rain and snow Thursday night, then a mix of clouds and sun Friday and Saturday with mostly cloudy skies Friday night free air freezing level 8,000 ft. Wednesday, 7,500 ft. Wednesday night, snow level 4,000 ft. Thursday and Thursday night, free air freezing level 4,500 ft. Friday, then 5,000 ft. Friday night and Saturday highs 33-30 lows 24-26.
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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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