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It’s Monday and that means a new chance to win. Here is my weekly weather quiz question. What is a fire tornado? 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 second trough of low pressure ( “U” shaped area over us) preparing to swing down about mid week. A frontal system is sliding down the California coast bringing precipitation with it. Another burst of cold air will hit mid week which could produce snow down to sea level and a frontal system late in the week  will bring more of the same.

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Advisories: A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM THURSDAY FOR THE NORTH AND CENTRAL OREGON COAST RANGE, THE NORTH OREGON CASCADES FOOTHILLS AND THE FOOTHILLS OF LANE COUNTY, THE NORTH OREGON CASCADES AND THE CASCADES OF LANE COUNTY. A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST, CENTRAL DOUGLAS COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON FOR THE SOUTH CENTRAL AND SOUTH OREGON CASCADES AND SISKIYOU MOUNTAINS, JACKSON COUNTY, EASTERN CURRY, AND JOSEPHINE COUNTY, AND THE SOUTH CENTRAL OREGON CASCADES,  .

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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: Partly cloudy this evening, mostly cloudy tonight with a slight (20%) chance of showers late (0.10 in. of rain possible), cloudy with showers likely (60%) Tuesday (0.25 in. of rain possible), cloudy with a good (50%) chance of evening showers, showers likely (60%) late Tuesday night (snow level 1,200 ft. falling to 1,000 ft. late, 0.25 in. of rain), rain and snow showers likely (60%) Wednesday AM, rain and snow in the afternoon (snow level 1,000 ft. falling to 500 ft. in the afternoon, 1-3 in. of snow possible), rain Wednesday evening, then snow Wednesday night (snow level 500 ft. in the evening, 1-3 in. of snow possible) lows 34-29 highs 45-39. Mostly cloudy with snow showers Thursday, and a (40%) of snow showers Thursday night and Friday, a slight (20%) chance of snow showers Friday night and Saturday, mostly cloudy Saturday night, a mix of clouds and sun Sunday, mostly cloudy with a (40%) chance of showers Sunday night, and partly cloudy with a (40%) chance of showers Monday highs 36-45 lows 24-32. (seasonal  averages high 52 low 35)

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Forecast for the Umpqua Basin including, Roseburg: Partly cloudy this evening, mostly cloudy with a (40%) chance of rain and snow late tonight and Tuesday AM,  rain and snow Tuesday afternoon (snow level 1,000 ft. rising to 1,500 ft. 1 in. of snow possible at that level) and rain and snow Tuesday night (snow level 1,000 ft. late, 1 in. of snow possible),  mostly cloudy with rain and snow Wednesday (snow level 500 ft. rising to 1,500 ft. in the afternoon) and Wednesday night (snow level 500 ft.) lows 33-28 highs 47-44. Cloudy with snow Thursday, a good (50%) chance of rain and snow showers Thursday night, mostly cloudy with a (40%) chance of snow showers Friday and (30%) chance Friday night, a slight (20%) chance of snow showers Saturday, just mostly cloudy Saturday night, partly cloudy Sunday, partly cloudy with a slight (20%) chance of rain Sunday night, and mostly cloudy with a (40%) chance of rain and snow Monday highs 36-49 lows 25-33. (seasonal averages high 56 low 37)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this evening, mostly cloudy with a (40%) rain late tonight (snow level 2,000 ft. late), mostly cloudy with coastal showers likely (60%) Tuesday, a good (50%) chance of AM rain and snow inland then rain likely (60%) in the afternoon (snow level 1,500 ft.), coastal rain likely (60%) Tuesday night with rain and snow likely (60%) inland (snow level 1,000 ft.),  coastal rain with rain and snow showers inland Wednesday (snow level 1,000 ft. rising to 1,500 ft.), coastal rain with rain and snow inland Wednesday night (snow level 500 ft. in the evening) lows 37-34 highs 45-42. Mostly cloudy with rain and snow Thursday, rain and snow showers likely (60%) Thursday night, a good (50%) chance of rain and snow showers Friday and Friday night, a slight (20%) chance of rain and snow showers Saturday, just partly cloudy Saturday night and Sunday, partly cloudy with a (40%) chance of rain Sunday night, and mostly cloudy with a good (50%) chance of rain Monday highs 40-45 lows 34-30 and back to 35 Saturday night (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 evening snow showers, snow showers late tonight (3-5 in. of snow possible), snow showers Tuesday (4-8 in. of snow possible), and breezy (wind: W 15-25 mph gusts to 40 mph in the AM), snow showers Tuesday night (4-8 in. of snow possible),  snow Wednesday (8-14 in. of snow possible), and breezy (wind: SW 15-25 mph), snow (6-10 in. of snow possible) Wednesday night and breezy (wind: W 15-25 mph shifting SW 10-15 mph late) snow level 2,500 ft. this evening, at the surface today Tuesday through Wednesday night lows 23-18 highs 28-22. Snow showers Thursday, then mostly cloudy with a (40%) chance of snow showers Thursday night and Friday, then a slight (20%) chance of snow showers Friday night and Saturday, just mostly cloudy Saturday night, mostly cloudy with a (40%) chance of snow showers Sunday, and a (40%) chance of snow showers Sunday night and Monday snow level at the surface Thursday through Saturday, a free air freezing level at the surface Saturday night, then snow level at the surface Sunday through Monday highs 18-29 lows 13-19.

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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.