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The jet stream shows a second trough of low pressure ( “U” shaped area over us) preparing to swing down about mid week. A frontal system has dropped Southward through California with  a break in systems behind it and it looks like we’ll dry out for the rest 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:  NONE AT THIS TIME.

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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 good (50%) chance of showers late tonight (0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers Monday (Presidents’ Day), mostly cloudy Monday night with a slight (20%) chance of showers late, cloudy with a good (50%) chance of showers Tuesday (0.10 in. of rain possible), and showers likely (60%) Tuesday night (snow level 1,200 ft. 1 in. of snow possible at that level) lows 32-34 highs 48-45. Mostly cloudy with a rain and snow showers Wednesday (snow level 1,000 ft.),  snow showers Wednesday night, then mostly cloudy with a good (50%) chance of rain and snow showers Thursday, and (40%) Thursday night through Saturday night, and partly cloudy with a (40%) chance of rain and snow showers Sunday highs 42-40 lows 29-25. (seasonal  averages high 52 low 35)

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Forecast for the Umpqua Basin including, Roseburg: Mostly cloudy with a slight (20%) chance of rain and snow showers this evening, a (40%) chance of rain and snow showers late tonight (snow level 1,000 ft. late), mostly cloudy with a slight (20%) chance of rain and snow showers (snow level 500 ft. in the AM) Monday AM (Presidents’ Day), mostly cloudy with rain and snow showers likely (60%) late Monday night, rain and snow showers likely (60%) Tuesday (snow level 1,500 ft.) and Tuesday night (snow level 1,000 ft.) lows 32-35 highs 50-47. Mostly cloudy with rain and snow Wednesday through Thursday, then mostly cloudy with a (40%) chance of rain and snow showers Thursday night through Sunday highs 45-38 rising to 46 Sunday lows near 30-32. (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 slight (20%) chance of evening showers, coastal showers late tonight, showers likely (60%) late tonight inland (snow level 1,500 ft. late), mostly cloudy with a (30%) chance of AM coastal showers (AM snow level 1,000 ft.) Monday (Presidents’ Day), a (40%) chance of AM rain and snow showers inland, partly cloudy Monday evening then mostly cloudy, a slight (20%) chance of coastal showers Monday night, showers likely (60%) inland late at night with patchy fog, showers likely (60%) Tuesday (snow level 2,000 ft. falling to 1,500 ft. in the afternoon), coastal rain likely (60%) with rain and snow showers likely (60%) inland Tuesday night (snow level 1,000 ft. rising to 1,500 ft. late at night) lows near 37 highs 48-42. Mostly cloudy with rain and snow Wednesday through Thursday, rain and snow showers Thursday night, then mostly cloudy with a (40%) chance of rain and snow showers Friday through Sunday highs 43-48 lows 32-34. (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 showers tonight and Monday (Presidents’ Day), mostly cloudy with a slight chance of evening snow showers, a (30%) chance of snow showers late Monday night, snow showers likely (60%) Tuesday (2-5 in. of snow possible) and breezy (wind: W 15-25 mph), and snow showers likely (60%) Tuesday night (2-5 in. of snow possible) and breezy (wind: W 15-25 mph) snow level at the surface tonight, rising to 2,500 ft. Monday and Monday night, back down to the surface Tuesday and Tuesday night lows 22-18 highs 35-30. Mostly cloudy with snow showers likely (60%) Wednesday and breezy, snow showers likely (60%) Wednesday night and Thursday, then mostly cloudy with a (40%) chance of snow showers Thursday night through Sunday snow level at the surface Wednesday through Sunday highs 22-28 lows 18-12.

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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.