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The jet stream is bringing the air to us from the Northwest (Gulf of Alaska) as you can see with the shaded area and the blue arrows. That will change us from the warmer than normal Spring-like weather back to a more late winter pattern with falling snow levels. The next cold front is already onshore. Behind it is much colder aloft that will also sweep in along the surface. This will be good for skiers and won’t last too long to hamper gardeners for too long. Other storms will head toward us, but late in the week a strong storm will push its central area of low pressure Northeastward into British Columbia taking the worst of the storm away from us.

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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM TO 4 PM MONDAY ABOVE 2,000′ FOR CENTRAL DOUGLAS COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY,  JOSEPHINE COUNTY, AND JACKSON COUNTY.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with periods of rain tonight low 35. Mostly cloudy with showers likely (60%) Monday and a chance of isolated thunderstorms, small hail is also possible, snow level plunging to 1,500′(which means the hail and possibly even some snow flakes could survive the trip to the valley floor) high in the upper 40s. Partly cloudy with a slight (20%) chance of showers Monday night snow level 1,000′ overnight low in the mid 20s (protect any tender vegetation you may have planted outside).  Mostly cloudy with a (40%) chance of AM rain then rain likely (60%) Tuesday afternoon snow level 500′ early in the morning rising to 1,500′ in the afternoon high 44. Mostly cloudy with rain Tuesday night and showers likely (60%)  Wednesday and a (40%) chance of showers Wednesday night lows near 35 high 50. Mostly cloudy with a good (50%) chance of rain Thursday and likely (60%) Thursday night high 56 low 44. Mostly cloudy with rain likely (60%) Friday and showers Friday night high 54 low 38. Mostly cloudy with a (40%) chance of showers Saturday and partly cloudy at night with slight (20%) chance of rain high 54 low 36.A mix of clouds and sun Sunday and dry high 57.

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Forecast for the Umpqua Basin including Roseburg:  Cloudy with a (30%) chance of  rain this evening then rain tonight snow level 3,500′ late low 37. Mostly cloudy with rain and snow showers likely (60%) Monday morning then likely (60%) in the afternoon with a chance of isolated thunderstorms and possible small hail snow level 2,000’1-2″ of snow possible high 50. A slight (20%) chance of rain and snow showers Monday evening low 32. A (30%) of rain and snow Tuesday snow level  1,000′ rising to 1,500′ in the afternoon high 49. Evening rain and snow then rain and snow likely (60%) late Tuesday night low 35. Mostly cloudy AM rain and snow showers likely with a good (50%) chance of afternoon rain and snow showers Wednesday high 50.  Just a slight (20%) chance of rain Wednesday night then a (40%) chance of rain Thursday and Thursday night low 37 high 57. Cloudy with a good (50%) chance of AM rain then likely Friday afternoon high 56. Showers likely (60%) and colder Friday night, a good (50%) chance of showers Saturday, and a slight (20%) Saturday night lows 35-38 high 55. Patchy morning fog then just mostly cloudy Sunday high 57.

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Mostly cloudy with  rain likely (60%) this evening then rain late at night low 39. Mostly cloudy with showers likely (60%) and isolated thunderstorms at the coast Monday with showers and isolated afternoon thunderstorms and possible small hail inland snow level 2,000′ high 49. Mostly cloudy Monday night low 34. Mostly cloudy with a good (50%) chance of rain Tuesday morning then afternoon rain likely (60%) at the coast, a (40%) chance of rain and snow in the AM then likely (60%) in the afternoon inland snow level 500′ rising to 2,000′ in the afternoon high 47. Mostly cloudy with evening rain then rain likely (60%) Tuesday night snow level 2,000′ overnight low 38. Mostly cloudy with AM showers likely Wednesday AM then a good (50%) chance of afternoon showers high 48. A slight (20%) chance of rain Wednesday night low 36. Cloudy with rain likely (60%) Thursday and Thursday night high 52 low 45. Cloudy with a good (50%) chance of AM rain Friday then rain becoming likely (60%) in the afternoon high 53. Evening showers then showers likely (60%) Friday night low 39.  Mostly cloudy with a good (40%) chance of showers Saturday then a slight (20%) chance overnight high 53 low 39. AM fog then just mostly cloudy Sunday high 53.

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Forecast for the Cascades of Lane County: Rain and snow this evening then snow late tonight snow level 4,000′ falling to 2,000′ overnight 2-5″ of snow possible low 27. Mostly cloudy with periods of snow Monday morning then afternoon snow showers likely (60%) 1-4″ of snow possible snow level at the surface high 30. A (40%) chance of snow showers Monday night  snow level at the surface low in the mid teens. Mostly cloudy with a (30%) chance of snow Tuesday and snow Tuesday night snow level still at the surface high 32 low 22. Showers likely (60%) Wednesday with snow showers likely (60%) Wednesday night snow level 2,500′ at night high 30 low 25. A (40%) chance of rain and snow Thursday snow level 3,500′ rising to 4,500′  high 40. Mostly cloudy with a good (50%) chance of rain Thursday night snow level 5,500′  low 32.  Mostly cloudy Friday with rain and snow likely (60%) then rain and snow showers at night snow level 4,500′ falling to 3,000′ high 42 low 33. Mostly cloudy with a good (50%) chance of snow showers Saturday and a slight (20%) chance of rain and snow at night  snow level 3,000′ high 38 low 28. A mix of clouds and sun Sunday snow level rising to a height of 6,000′ high 42.

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