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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 raining 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 and Hoodoo are open and Willamette Pass opened their season today.
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Advisories: A HIGH WIND WARNING IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE NORTHWEST OREGON COAST NEAR THE COLUMBIA GORGE, AND THE CENTRAL OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT 10 AM TODAY FOR THE COAST RANGE OF NORTHWEST OREGON. A WINTER STORM WARNING IS IN EFFECT UNTIL 6 PM TODAY FOR THE WESTERN COLUMBIA RIVER GORGE, UNTIL 4 PM TODAY FOR THE NORTH CASCADE FOOTHILLS. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 6 AM THURSDAY FOR THE NORTH OREGON CASCADES (NOT INCLUDING THE CASCADES IN LANE COUNTY). A WINTER WEATHER ADVISORY IS IN EFFECT 6 PM TONIGHT FOR THE UPPER HOOD RIVER VALLEY. A HIGH WIND WARNING IS IN EFFECT FROM 10 AM TODAY UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A HIGH SURF WARNING IS IN EFFECT FROM 10 AM TODAY 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 ABOVE 1,500 FT. FOR CENTRAL DOUGLAS COUNTY, 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 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 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 mixed with snow early this AM, rain in the afternoon (0.50 in. of rain possible) today and windy (wind: S 20-30 mph), rain tonight (0.75 in. of rain possible) and windy (wind: S 20-30 mph), mostly cloudy with rain Thursday (0.50 in. of rain possible), showers Thursday night, showers likely (70%) Friday, then rain Friday night highs 45-42 warming to 45 Friday lows 35-38. Mostly cloudy with rain Saturday, showers likely (60%) Saturday night and Sunday, a good (50%) chance of showers Sunday night and Monday, then mostly cloudy with a (40%) chance of showers Monday night and Tuesday (Christmas Day) highs near 45 lows near 38. (seasonal averages high 45 low 33)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain and snow today (under 0.10 in. of rain possible, snow level 500 ft. rising to 2,500 ft. in the afternoon) and windy (wind: S 20-30 mph), 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), rain and snow Thursday (0.55 in. of rain possible, snow level 600 ft.), rain and snow showers Thursday night (snow level 800 ft.), mostly cloudy with rain and snow showers Friday and Friday night lows 33-39 cooling to 34 Thursday night warming to 39 Friday night highs 48-42. Mostly cloudy with rain and snow Saturday and Saturday night, rain and snow showers likely (60%) Sunday through Monday, a good (50%) chance of rain and snow Monday night, then mostly cloudy with a (40%) chance of rain and snow showers Tuesday (Christmas Day) highs near 44 lows near 36. (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 (under 0.10 in. of rain possible) today and very windy (wind: S 30-45 mph at the shore, S 25-35 mph inland), rain tonight (1.30 in. of rain possible) and very windy (wind: S 35-45 mph at the shore, S 25-35 mph inland), coastal rain with rain and snow inland Thursday (0.60 in. of rain possible, snow level 1,500 ft.) and breezy (wind: S 15-25 mph), coastal showers with rain and snow showers inland Thursday night (snow level 1,500 ft.) and breezy (wind: S 15-25 mph at the beaches and S 10-15 mph inland), then mostly cloudy with showers Friday and Friday night highs 50-45 lows near 38. Mostly cloudy with rain Saturday, and Saturday night, showers Sunday, showers likely (70%) at night and Monday, rain likely (60%) Monday night, then mostly cloudy with a good (50%) chance of showers Tuesday (Christmas Day) highs near 48 lows 38-45. (seasonal averages high 51 low 39)
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Forecast for the Cascades of Lane County: Cloudy with AM snow, rain and snow this afternoon (0.25 in. of rain possible, 1-3 in. of snow possible), rain and snow (0.25 in. of rain possible, 2-5 in. of snow possible) tonight and windy (wind: S 20-30 mph gusts to 50 mph, AM rain and snow, snow (6-12 in. of snow possible) Thursday afternoon and breezy, rain and snow showers Thursday night, rain and snow showers likely (60%) Friday, then snow Friday night snow level at the surface today, 4,000 ft. tonight, then at the surface Thursday through Friday night highs 32-29 rising to 34 Thursday lows 25-22. Mostly cloudy with snow Saturday, snow showers likely (60%) Saturday night and Sunday, a good (50%) chance of snow showers Sunday night and Monday, a good (50%) chance of rain and snow showers Monday night, then mostly cloudy with a good (50%) chance of snow showers Tuesday (Christmas Day) snow level at the surface Saturday, and Saturday night, 2,500 ft. Sunday, at the surface Sunday night and Monday, 2,500 ft. Monday night, then at the surface Tuesday highs 30-33 cooling to 27 Monday and warming to 34 Tuesday lows near 27.
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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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