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Here is my weekly weather quiz question. Today is your last day this week to win. How do scientists forecast volcanic eruptions? 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 (shaded “Arch” shaped area) has moved away from us while a trough of low pressure (Shaded “U” shaped area with blue arrows) has moved over us sending waves of moisture at us. A frontal system will push through the Pacific Northwest Monday leading a parade of storms that will increase the rain chances again.
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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM TODAY UNTIL 7AM SATURDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, FROM 4 PM TODAY UNTIL 9 AM SATURDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY LAKE COUNTY.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with patchy AM fog, a good (50%) chance of showers with a slight (20%) chance of thunderstorms this afternoon (under 0.10 in. of rain possible, more in thunderstorms), mostly cloudy with a (30%) chance of isolated showers in the evening, partly cloudy with a slight (20%) chance of isolated showers tonight (under 0.10 in. of rain possible), patchy fog with a mix of clouds and sun with a slight (20%) chance of showers Saturday AM, partly cloudy late in the afternoon and Saturday night, mostly cloudy Sunday (Veterans Day), then rain likely (70%) Sunday night highs 48-53 lows 36-32 warming to 37 Sunday night. Mostly cloudy with rain Monday (Federal Holiday), mostly cloudy with rain likely (60%) Monday night, mostly cloudy with showers likely (60%) Tuesday, a (40%) chance of showers Tuesday night, a mix of clouds and sun with a (30%) chance of showers Wednesday, then partly cloudy with slight (20%) chance of showers Wednesday night and Thursday highs 52-49 lows 40-35. (seasonal averages high 54 low 39)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a good (50%) chance of rain and snow showers and isolated thunderstorms this AM, rain and snow showers likely (70%) with a slight (20%) chance of isolated thunderstorms this afternoon (snow level 2,000 ft. rising to 2,500 ft.), a (40%) chance of rain and snow showers tonight (snow level 2,500 ft. falling to 2,000 ft. late), mostly cloudy Saturday, partly cloudy Saturday night, mostly cloudy Sunday (Veterans Day), then rain likely (60%) Sunday night highs near 48 lows 38-32 warming to 40 Sunday night. Mostly cloudy with rain Monday (Federal Holiday), rain likely (70%) Monday night, showers likely (70%) Tuesday, mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday, then partly cloudy with a slight (20%) chance of showers Wednesday night and Thursday highs 54-50 lows 44-40. (seasonal averages high 56 low 41)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with showers likely (60%) and a slight (20%) chance of isolated coastal thunderstorms this AM, showers with a slight (20%) chance of isolated thunderstorms this afternoon while showers likely (60%) with a slight (20%) chance of isolated thunderstorms inland (under 0.10 in. of rain possible), mostly cloudy with a (40%) chance of showers tonight (under 0.10 in. of rain possible), just mostly cloudy Saturday, partly cloudy Saturday night (under 0.10 in. of rain possible), cloudy Sunday (Veterans Day), then mostly cloudy with rain likely (70%) Sunday night highs 48-53 lows 39-46. Mostly cloudy with rain Monday (Federal Holiday) and Monday night, showers likely (60%) Tuesday, a good (50%) chance of showers Tuesday night and Wednesday, then partly cloudy with a slight (20%) chance of showers Wednesday night and Thursday highs 56-52 lows 46-43. (seasonal averages high 56 low 44)
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Forecast for the Cascades of Lane County: Mostly cloudy with snow showers likely (60%) today (1 in. of snow possible), mostly cloudy with a (40%) chance of scattered snow showers tonight, a mix of clouds and sun with a slight (20%) chance of snow showers Saturday, just partly cloudy Saturday night, a mix of clouds and sun Sunday (Veterans Day), then rain and snow likely (60%) Sunday night snow level at the surface today through Saturday, then free air freezing level at the surface Saturday night and Sunday, snow level 3,000 ft. Sunday night highs 29-37 lows 20-25. Mostly cloudy with rain and snow Monday (Federal Holiday), rain and snow likely (60%) Monday night, rain and snow showers likely (60%) Tuesday, a good (50%) chance of rain and snow showers Tuesday night, a (40%) chance of rain and snow showers Wednesday, partly cloudy with a slight (20%) chance of rain and snow showers Wednesday night, then a mix of clouds and sun with a slight (20%) chance of rain and snow showers Thursday free air freezing level at the surface Sunday, snow level 3,000 ft. Sunday night, 4,500 ft. Monday and Monday night, 4,000 ft. Tuesday and Tuesday night, 4,500 ft. Wednesday, 5,000 ft. Wednesday night, then 4,500 ft. Thursday highs 37-42 lows 25-28.
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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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