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Here is my new weekly weather quiz question. 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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Short-lived high pressure (shaded “Arch” shaped area offshore) brought out the sunshine Sunday warming us up more than I expected and should hold off more wet weather until midweek. A cold front moved into Oregon bringing the temperatures down, but they will still be a bit above normal. A trough of low pressure (Shaded “U” shaped area with blue arrows in the Gulf of Alaska) will move in behind the ridge sending waves of moisture at us. A frontal system will push into Oregon Wednesday with more behind it bringing increasing waves of rain.
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Advisories: NONE AT THIS TIME.
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Forecast for the Umpqua Basin including Roseburg: Patchy fog this AM, partly cloudy this afternoon, partly cloudy in the evening, mostly cloudy with patchy fog late tonight, sunny after patchy fog Tuesday AM, partly cloudy with a slight (20%) chance of showers in the afternoon and evening, mostly cloudy with a (30%) chance of rain Tuesday night, a (30%), showers and cooler Wednesday, then mostly cloudy and colder with a good (50%) chance of showers in the evening, rain likely (60%) and colder Wednesday night highs 67-55 lows 48-40. Mostly cloudy with rain and snow likely (60%) Thursday AM, rain likely (60%) in the afternoon, rain and snow showers likely (60%) Thursday night through Friday night, mostly cloudy with a (40%) chance of rain and snow showers Saturday, a slight (20%) chance of showers Saturday night, then just mostly cloudy Sunday (Veterans Day) highs 49-54 lows 40-35. (seasonal averages high 57 low 42)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with patchy fog this AM, mostly cloudy this afternoon, partly cloudy in the evening, mostly cloudy with patchy fog late tonight and Tuesday AM, mostly cloudy in the afternoon with a slight (20%) chance of inland showers, mostly cloudy with a slight (20%) chance of rain in the evening, mostly cloudy with a (30%) chance of showers late Tuesday night, a (40%) chance of showers Wednesday evening, then mostly cloudy with a good (50%) chance of rain Wednesday night lows 52-43 highs 65-56. Mostly cloudy with rain and cooler Thursday, showers likely (70%) Thursday night through Friday night, mostly cloudy with a good (50%) chance of showers Saturday, a slight (20%) chance of showers Saturday night, then just mostly cloudy Sunday (Veterans Day) highs 50-55 lows 42-38. (seasonal averages high 57 low 44)
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Forecast for the Cascades of Lane County: Partly cloudy today and tonight, a mix of clouds and sun Tuesday, mostly cloudy with rain likely (60%) Tuesday evening, a (40%) chance of showers and colder late at night, a (30%) chance of ran and snow showers Wednesday, then mostly cloudy with a good (50%) chance of rain and snow showers Wednesday night free air freezing level 12,000 ft. rising to 13,000 ft. today and tonight, 13,000 ft. falling to 12,000 ft. Tuesday afternoon, snow level above 8,000 ft. Tuesday night, 6,500 ft. falling to 5,000 ft. Wednesday, then 4,500 ft. Wednesday night highs 61-65 cooling to 42 Wednesday lows 42-26. Mostly cloudy with rain and snow showers likely (60%) Thursday and Thursday night, a good (50%) chance of snow showers Friday, a (40%) chance of snow showers at night and Saturday, a slight (20%) chance of snow showers Saturday night, then mostly cloudy Sunday (Veterans Day) snow level 3,000 ft. Thursday and Thursday night, 2,500 ft. Friday through Saturday night, then free air freezing level at the surface Sunday highs 36-33 lows 27-24.
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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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