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Here is my weekly weather quiz question. What is the average ratio of melted liquid to actual snowfall? In other words how much melted snow (liquid amount) will equal a specific amount of snow? 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. Good Luck.
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Another upper level trough of low pressure is moving down from the Gulf of Alaska following the one that is moving away from us. A warm front (shown in red) is moving through raising temperatures a bit and raising the snow levels well above the valley floor. It will be followed by a cold front that will push in late tonight and Thursday. For skiers Mt. Ashland, Hoodoo and Willamette Pass are all open.
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Advisories: A HIGH WIND WARNING IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE NORTH OREGON COAST AND UNTIL 1 AM THURSDAY FOR THE CENTRAL OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 8 PM TONIGHT UNTIL 4 PM THURSDAY FOR THE COAST RANGE OF NORTHWEST OREGON AND THE CENTRAL COAST RANGE OF WESTERN OREGON. A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM THURSDAY FOR THE WESTERN COLUMBIA RIVER GORGE. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM THURSDAY FOR THE NORTH OREGON CASCADES (NOT INCLUDING THE CASCADES IN LANE COUNTY), AND THE UPPER HOOD RIVER VALLEY. A HIGH WIND WARNING IS IN EFFECT UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A HIGH SURF WARNING IS IN EFFECT UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM THURSDAY UNTIL 4 AM FRIDAY JUST ABOVE 1,500 FT. FOR CENTRAL DOUGLAS COUNTY, AND FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTH OREGON CASCADES, AND THE SISKIYOUS MOUNTAINS. A WINTER STORM WARNING IS IN EFFECT FROM 10 PM TONIGHT UNTIL 3 PM FRIDAY ABOVE 2,000 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM THURSDAY UNTIL 4 AM FRIDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS AND BELOW 2,000 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM THURSDAY UNTIL 4 AM FRIDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY. A WINTER STORM WATCH IS IN EFFECT FROM LATE TONIGHT UNTIL LATE THURSDAY NIGHT FOR THE SOUTH CENTRAL AND SOUTH OREGON CASCADES. A HIGH WIND WARNING IS IN EFFECT UNTIL 1 AM THURSDAY FOR JACKSON COUNTY. A HIGH WIND WARNING IS IN EFFECT FROM 7 PM TONIGHT UNTIL 2 PM THURSDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, WESTERN, CENTRAL, AND EASTERN LAKE COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM THURSDAY UNTIL 4 AM FRIDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
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The Winter Solstice takes place at 3:12 AM PST Friday and that marks the official beginning of Winter and the shortest day of the year. For more detail see The Old Farmer’s Almanac.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with rain, possibly heavy at times, tonight (1.00 in. of rain possible) and windy (wind: S 20-30 mph), mostly cloudy with AM rain or snow, possibly heavy at times, rain Thursday afternoon (1.00 in. of rain possible, 1 in. of snow possible in the higher hills), showers Thursday night (0.25 in. of rain possible), showers Friday (0.25 in. of rain possible) through Saturday, then showers likely (70%) Saturday night lows 33-38 highs 43-45. Mostly cloudy with showers likely (60%) Sunday through Monday, showers likely (60%) Monday night, a good (50%) chance of rain Tuesday (Christmas Day) and Tuesday night and Wednesday highs 43-46 lows 35-40. (seasonal averages high 45 low 33)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain tonight (0.25 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft. late) and windy (wind: S 20-30 mph gusts to 45 mph), AM rain, rain and snow Thursday afternoon (0.65 in. of rain possible, 4-6 in. of snow possible, snow level 3,500 ft. falling to 1,500 ft.) and breezy (wind: S 15-25 mph gusts to 40 mph shifting to SE 10-15 mph late AM and afternoon), rain and snow showers Thursday night (0.25 in. of rain possible), AM rain and snow showers, rain and snow showers likely (60%) Friday afternoon (0.20 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft. in the afternoon), rain and snow showers in the evening, rain and snow showers late Friday night (0.45 in. of rain possible, snow level 2,500 ft. rising to 3,000 ft. late), rain and snow showers Saturday, then rain and snow Saturday night lows 37-42 highs 45-42. Mostly cloudy with rain and snow likely (60%) Sunday, rain and snow showers at night, rain and snow showers likely (70%) Monday, a slight (20%) chance of rain and snow showers Monday night, mostly cloudy with a (40%) chance of rain Tuesday (Christmas Day), a (40%) chance of rain Tuesday night, then mostly cloudy with rain likely (60%) Wednesday highs 42-48 lows 36-40. (seasonal averages high 47 low 36)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with rain (1.40 in. of rain possible) tonight and very windy (wind: S 30-45 mph decreasing to S 25-35 mph late at the shore while S 25-35 mph inland), rain Thursday (1.40 in. of rain possible) and windy (wind: S 20-30 mph decreasing to S 10-20 by late AM into the afternoon), showers Thursday night (0.25 in. of rain possible, evening snow level 2,000 ft.), mostly cloudy with AM showers, showers likely (70%) Friday afternoon (0.30 in. of rain possible, snow level 2,000 ft.), showers Friday night (0.30 in. of rain possible) and Saturday, rain at night, then mostly cloudy with rain Saturday night lows 40-36 warming to 42 Saturday night highs near 46. Mostly cloudy with rain likely (60%) Sunday, showers at night, showers likely (70%) Monday, a (40%) chance of showers Monday night, cloudy with rain likely (60%) Tuesday (Christmas Day), cloudy with a good (50%) chance of rain Tuesday night, then mostly cloudy with rain likely (60%) Wednesday highs 46-50 lows 39-45. (seasonal averages high 51 low 39)
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Forecast for the Cascades of Lane County: Mostly cloudy with rain or snow (0.25 in. of rain possible, 1-4 in. of snow possible) tonight and windy (wind: S 20-30 mph gusts to 60 mph, AM rain and snow, snow (0.75 in. of rain possible, 3-8 in. of snow possible) Thursday afternoon and windy (wind: S 20-30 mph gusts to 55 decreasing to 45 in the afternoon, rain and snow showers Thursday night (0.25 in. of rain possible, 1-2 in. of rain possible), rain and snow showers likely (60%) Friday, rain and snow showers Friday night and breezy (wind: SE 10-15 mph gusts to 30 mph shifting to S 15-25 mph gusts to 40 mph late at night), mostly cloudy with snow showers Saturday, then snow likely (60%) Saturday night snow level 3,000 ft. tonight, at the surface Thursday, 2,500 ft. Thursday night, 3,000 ft. Friday and Friday night, at the surface Saturday, then 2,500 ft. Saturday night lows 25-30 highs 30-33 cooling to near 30 Saturday. Mostly cloudy with rain and snow showers likely (60%) Sunday and Sunday night, snow showers likely (60%) Monday, a good (50%) chance of snow Monday night, mostly cloudy with a good (50%) chance of rain and snow Tuesday (Christmas Day), then mostly cloudy with a good (50%) chance of rain and snow Tuesday night and Wednesday snow level 2,500 ft. Sunday through Tuesday, 4,000 ft. Tuesday night, then 5,000 ft. Wednesday highs 32-27 Monday and warming to 35 Wednesday lows 28-35.
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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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