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No takers for this week’s question. Here is my weekly weather quiz question for the last time. How do scientists forecast volcanic eruptions? Here is the correct answer. Scientists use a wide variety of techniques to monitor volcanoes, including seismographic detection of the earthquakes and tremor that almost always precede eruptions, precise measurements of ground deformation that often accompanies the rise of magma, changes in volcanic gas emissions, and changes in gravity and magnetic fields. Although not diagnostic individually, these techniques, when used in combination at well-monitored volcanoes, have resulted in successful predictions. At Pinatubo volcano (Philippines) in 1991, a successful forecast saved thousands of lives. For more on predicting volcanic eruptions go to The Global Vulcanism Program website. The USGS website also discusses these monitoring techniques in more detail. I’ll have a new weekly weather quiz question for you next Monday. 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 trough of low pressure (Shaded “U” shaped area with blue arrows) is heading through the Pacific Northwest, but will take its time exiting our area. An even stronger frontal system will push through next weekend increasing the rain chances again.
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Advisories: A HIGH WIND WARNING IS IN EFFECT UNTIL 6 AM MONDAY NEAR THE BEACHES AND HEADLANDS OF THE NORTH OREGON COAST AND UNTIL 8 AM NEAR THE BEACHES AND HEADLANDS FOR THE CENTRAL OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM MONDAY ABOVE 4,000 FT. FOR THE NORTH OREGON CASCADES (NOT INCLUDING THE CASCADES OF LANE COUNTY).
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with rain tonight (0.50 in. of rain possible), mostly cloudy with AM rain, scattered showers Monday (Veterans Day Federal Holiday Observed) afternoon (0.25 in. of rain possible), a good (50%) chance of showers Monday night (under 0.10 in. of rain possible), a good (50%) chance of showers Tuesday and Tuesday night (under 0.10 in. of rain possible), a (30%) chance of showers Wednesday, then mostly cloudy with a slight (20%) chance of rain Wednesday night lows 46-40 highs 54-50. Mostly cloudy with a (40%) chance of rain Thursday, cloudy with a (30%) chance of showers Thursday night, mostly cloudy with a (40%) chance of showers Friday, cloudy with a (40%) chance of rain Friday night and Saturday, then a good (50%) chance of rain Saturday night and Sunday highs 55-58 lows near 46. (seasonal averages high 54 low 38)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain tonight (0.10 in. of rain possible) and Monday (0.15 in. of rain possible), cloudy with evening showers likely (60%), a good (50%) chance of showers late Monday night (under 0.10 in. of rain possible) and Tuesday, a (30%) chance of showers Tuesday night, a slight (20%) chance of showers Wednesday, then mostly cloudy with a slight (20%) chance of showers with patchy fog late Wednesday night lows 43-40 highs 53-55. Patchy AM fog, mostly cloudy with a (40%) chance of showers Thursday and Thursday evening, a (40%) chance of rain late Thursday night, cloudy with a good (50%) chance of showers Friday, a (30%) chance of showers Friday night, mostly cloudy with a slight (20%) chance of rain Saturday, then cloudy with a (30%) chance of rain Saturday night and a good (5%) chance of rain Sunday highs near 56 lows 43-45. (seasonal averages high 55 low 41)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with rain tonight (0.45 in. of rain possible) and breezy (wind: S 15-25 mph gusts to 40 mph late night), rain (0.35 in. of rain possible) and breezy (wind: S 15-25 mph with gusts to 40 mph early AM) Monday (Veterans Day Federal Holiday), cloudy with evening coastal showers likely (60%) with inland evening showers then a good (50%) chance of showers late Monday night (under 0.10 in. of rain possible), mostly cloudy with a good (50%) chance of showers Tuesday and Tuesday night, then mostly cloudy with a (30%) chance of showers Wednesday and Wednesday night lows 50-45 warming to 48 Tuesday night cooling to 45 Wednesday night highs 53-58 cooling to 56 Wednesday. Mostly cloudy with a (40%) chance of showers Thursday, cloudy with a (30%) chance of evening showers, then a good (50%) chance of rain late Thursday night, showers likely (60%) Friday, cloudy with a god (50%) chance of showers Friday night, a good (50%) chance of rain Saturday and Saturday night, then mostly cloudy with rain likely (60%) Sunday highs 57-53 lows 48-51. (seasonal averages high 56 low 44)
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Forecast for the Cascades of Lane County: Mostly cloudy with rain and snow tonight (0.50 in. of rain possible, 1-4 in. of snow possible), AM rain, rain and snow showers (0.50 in. of rain possible, 1-3 in. of snow possible) Monday afternoon (Veterans Day Federal Holiday Observed), rain and snow showers likely (60%) Monday night (under 0.10 in. of rain possible, 1 in. of snow possible) and Tuesday (in. of rain possible), mostly cloudy with a good (50%) chance of rain and snow showers Tuesday night, a (30%) chance of rain and snow showers Wednesday, then mostly cloudy with a (30%) chance of rain Wednesday night snow level 4,500 ft. tonight, 6,000 ft. Monday, 5,000 ft. Monday night through Wednesday, then 6,000 ft. Wednesday night lows 32-28 warming to 35 Wednesday night highs 39-43. Mostly cloudy with a (30%) chance of rain Thursday, a (40%) chance of showers Thursday night, cloudy with a (40%) chance of showers Friday, cloudy with a (40%) chance of rain Friday night, cloudy with a good (50%) chance of rain and Saturday and Saturday night, then cloudy with a (40%) chance of rain Sunday snow level 6,500 ft. Thursday and Thursday night, 6,000 ft. Friday through Saturday, 7,000 ft. Saturday night, then 6,500 ft. Sunday highs 44-40 warming to 44 Saturday then cooling to near 40 Sunday lows near 33.
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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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