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It’s Monday and that means a new weekly weather quiz question. Here it is. 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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A high pressure ridge (shaded “Arch” shape) is flattening which means our airflow is now moving from west to east (called zonal flow). A frontal system has moved through oregon carrying more moisture to us. This frontal system will approach the Pacific Coast Thursday increasing rain chances again. For skiers Mt. Ashland and Hoodoo are open and Willamette Pass plans to open their season Wednesday.
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Advisories: A HIGH SURF WARNING IS IN EFFECT UNTIL NOON TODAY FOR NORTH AND CENTRAL OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 6 PM TODAY FOR THE COAST RANGE OF NORTHWEST OREGON AND THE CENTRAL COAST RANGE OF NORTHWEST OREGON, THE NORTH CASCADE FOOTHILLS, AND THE CASCADE FOOTHILLS OF LANE COUNTY. A WINTER STORM WARNING IS IN EFFECT UNTIL 6 PM TODAY FOR THE THE NORTH OREGON CASCADES AND THE CASCADES IN LANE COUNTY. A WINTER STORM WATCH IS IN EFFECT FROM THIS AFTERNOON UNTIL TUESDAY AFTERNOON ABOVE 1,500 FT. FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM TODAY UNTIL 4 PM TUESDAY ABOVE 1,000 FT. FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 PM TODAY UNTIL 4 PM TUESDAY ABOVE 1,500 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON 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 showers today (0.25 in. of rain possible) and breezy (W 15-25 mph), showers this evening, rain and snow showers and colder tonight (0.15 in. of rain possible, 1 in. of snow possible, snow level 1,000 ft.), rain and snow showers Tuesday (0.10 in. of rain possible, 1 in. of snow possible above 500 ft.), mostly cloudy with a good (50%) chance of rain and snow showers in the evening, rain and snow likely (60%) late Tuesday night, rain likely (60%) Wednesday, then mostly cloudy with rain Wednesday night highs 43-40 warming to 45 Wednesday and windy (wind: S 15-20 mph increasing to S 20-30 mph in the afternoon) lows 40-34. Mostly cloudy with rain Thursday through Friday, showers Friday night and Saturday, then mostly cloudy with showers likely (60%) Saturday night and Sunday highs 44-48 lows near 39. (seasonal averages high 45 low 33)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain and snow showers and a slight (20%) chance of thunderstorms this afternoon (snow level 2,000 ft. , 0.20 in. of rain possible, 1 in. of snow possible), rain and snow showers and colder tonight with a slight (20%) chance of thunderstorms (0.10 in. of rain possible, 1-2 in. of snow possible above 1,500 ft.), AM snow, rain and snow showers Tuesday afternoon (1 in. of snow possible, snow level 400 ft.), cloudy with a (40%) chance of rain and snow showers Tuesday night (snow level 600 ft.), rain and snow likely (60%) Wednesday AM, rain and snow in the afternoon (snow level 400 ft. rising to 2,000 ft. in the afternoon), then rain Wednesday night lows 38-42 cooling to 30 Tuesday night highs 46-38. Mostly cloudy with rain and snow Thursday through Friday, rain and snow showers at night, rain Saturday, showers in the evening, rain and snow showers late Saturday night, then rain and snow showers likely (60%) Sunday highs 42-45 lows 38-36. (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 showers and a slight (20%) chance of thunderstorms at the shore today, mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms tonight while snow showers and a slight (20%) chance of thunderstorms inland tonight (0.30 in. of rain possible, 1-2 in. of snow possible, snow level 1,500 ft. falling to 900 ft. late at night), snow showers with a slight (20%) chance of AM thunderstorms, then showers in the afternoon with rain and snow showers inland Tuesday (1 in. of snow possible, snow level 800 ft.), evening coastal showers likely (60%) with rain late at night while rain and snow showers likely (70%) inland in the evening, then rain and snow likely (60%) late Tuesday night (snow level 700 ft.), AM rain and snow Wednesday with afternoon rain and breezy (wind: S 15-25 mph gusts to 45 mph), then rain and breezy Wednesday night lows 40-45 cooling to 36 Tuesday night highs 50-44. Mostly cloudy rain and breezy Thursday, rain Thursday night and Friday, showers Friday night, rain Saturday, showers and breezy Saturday night, then mostly cloudy with showers likely (60%) Sunday highs 46-50 lows 42-40. (seasonal averages high 51 low 39)
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Forecast for the Cascades of Lane County: Mostly cloudy with snow showers (6-12 in. of snow possible) today and breezy (wind: W 15-25 mp), snow showers (0.50 in. of rain possible, 2-5 in. of snow possible) and colder tonight, snow showers Tuesday (1-3 in. of snow possible), cloudy with a good (50%) chance of snow showers Tuesday evening, snow likely (60%) late at night, snow likely (60%) Wednesday and windy (wind: S 20-30 mph gusts to 40 mph increasing to 50 mph in the afternoon), then rain and snow and breezy Wednesday night snow level 2,500 ft. through mid afternoon, at the surface tonight through Wednesday, then 2,500 ft. Wednesday night lows 27-17 highs 28-20 warming to 28 Wednesday. Mostly cloudy with snow Thursday through Friday, mostly cloudy with rain and snow showers likely (60%) Friday night, rain and snow showers Saturday, then rain and snow showers likely (60) Saturday night and Sunday snow level at the surface Thursday through Friday, 3,000 ft. Friday night, 3,500 ft. Saturday and Saturday night, then 2,500 ft. Sunday highs 28-32 lows 25-30.
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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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