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This is your last chance to answer my weekly weather quiz question. What type of cloud appears as a lens or almond shape and where can they usually be found? Please post your answer as a comment by clicking on “no 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. Good luck

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The jet stream shows a large trough of low pressure ( “U” shaped area over us) that pumped a lot of moisture our way.  It will move away from us, but another upper level low will swing in about mid week. A frontal system is slowly sliding through the Pacific Northwest and it looks like we’ll dry out for most of the weekend before more storms head toward us next week. Another burst of cold air will follow a frontal system late in the week.

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Advisories:  A FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 8 AM SATURDAY FOR THE SOUTH CENTRAL OREGON COAST.

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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 a (40%) chance of rain and snow this evening (snow level 1,200 ft.), partly cloudy Saturday and Saturday night, a mix of clouds and sun Sunday, mostly cloudy with a slight (20%) chance of showers late Sunday night (snow level 1,200 ft.),  mostly cloudy with a slight (20%) chance of showers Monday (Presidents Day),  a good (50%) chance of showers Monday night lows 25-34 highs near 47-44. Mostly cloudy with a good (50%) chance of showers Tuesday, then a good (50%) chance of snow showers Tuesday night and Wednesday, (40%) Wednesday through Friday highs 44-40 lows 32-27. (seasonal  averages high 51 low 35)

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Forecast for the Umpqua Basin including, Roseburg: Mostly cloudy with a (40%) chance of rain and snow showers this evening, a slight (20%) chance of snow late tonight (snow level 500 ft. this evening), mostly cloudy with patchy fog and freezing fog Saturday AM with a slight (20%) chance of snow showers,  a slight (20%) chance of rain and snow showers Saturday afternoon,  mostly cloudy in the evening, partly cloudy Saturday night, mostly cloudy Sunday AM, partly cloudy in the afternoon, mostly cloudy with a slight (20%) chance of rain and snow showers Sunday night, mostly cloudy with a slight (20%) chance of AM rain and snow showers Monday AM (Presidents Day), a slight (20%) chance of showers Monday afternoon, and a slight (20%) chance of rain and snow showers Monday night lows 32-34 highs 46-50. Rain and snow showers likely (60%) Tuesday and Tuesday evening, a good (50%) chance of rain and snow showers late Tuesday night, mostly cloudy a (40%) chance of rain and snow showers Wednesday, evening rain and snow showers likely (60%) with snow likely (60%) late Wednesday night, and a (20%) chance of AM snow Thursday, then mostly cloudy with a (30%) chance of rain and snow showers Thursday night and Friday highs 46-42 warming to 45 Friday lows near 32. (seasonal averages high 56 low 37)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with a good (50%) chance of coastal rain this evening, a good (50%) chance of rain and snow showers inland this evening (snow level 500 ft. this evening), patchy fog and freezing fog Saturday AM, then mostly cloudy Saturday afternoon and evening, clearing Saturday night, mostly cloudy Sunday AM, partly cloudy Sunday afternoon, then a (40%) chance of  coastal showers late Sunday night, and a (30%) chance of rain and snow showers inland late Sunday night,  mostly cloudy with a good (50%) chance of rain and snow showers Monday AM (Presidents Day), then a (40%) chance of showers in the afternoon and Monday night lows 32-38 cooling back down to 32 Monday night highs 50-46. Rain and snow showers likely (60%) Tuesday AM, showers likely (60%) in the afternoon, cloudy with a good (50%) chance of rain and snow showers Tuesday night, mostly cloudy with rain and snow showers likely (60%) Wednesday, rain and snow showers likely (60%) Wednesday evening, rain and snow likely (60%) late Wednesday night, a (40%) chance of rain and snow Thursday AM, then a (40%) chance of rain and snow showers Thursday afternoon through Friday highs 45-43 lows near 35. (seasonal averages high 55 low 41).

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Forecast for the Cascades of Lane County:   Mostly cloudy with a slight (20%) chance of snow this evening, a  (40%) chance of snow showers late tonight and Saturday, partly cloudy with a slight (20%) chance of snow showers Saturday evening, a mix of clouds and sun Sunday , then a slight (20%) chance of snow showers late Sunday night and Monday (President’s Day) then snow showers likely (60%) Monday night snow level at the surface tonight and Saturday, free air freezing level 2,500 ft. Saturday night, rising to 3,000 ft. Sunday afternoon, then a slow level at the surface Sunday night and Monday lows 17-22 highs 35-30. Mostly cloudy with snow showers likely (60%) Tuesday through Wednesday, then mostly cloudy with a good (50%) chance of snow showers Wednesday night and Thursday, and a (40%) chance of snow showers Thursday night and Friday snow level at the surface Tuesday through Friday  highs 30-22 lows 18-15.

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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.