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Here is my new weekly weather quiz question. When tornadoes strike they have very strong winds. It is not possible to actually measure the winds created by tornadoes, so Dr. T. Ted Fujita created a scale of wind speeds based on the damage caused by the tornado. As of 2007 his designations have been changed. For example a tornado was listed as an F4 and now might be designated as an EF4. What does the “E” stand for and what does it mean? 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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Advisories: NONE AT THIS TIME.
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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, sunny this afternoon, mostly clear tonight, mostly sunny Thursday AM, partly cloudy in the afternoon, partly cloudy with a slight (20%) chance of showers late Thursday night, mostly cloudy and cooler with a good (50%) chance of showers Friday and Friday night highs 82-62 lows 48-54 cooling to near 50 Friday night. A mix of clouds and sun with a good (50%) chance of showers Saturday, mostly cloudy in the evening, partly cloudy with a (40%) chance of showers Saturday night, a mix of clouds and sun with a (30%) chance of showers Sunday AM, a mix of clouds and sun with a slight (20%) chance of showers Sunday afternoon, partly cloudy with a slight (20%) chance of showers at night, a mix of clouds and sun with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance of showers Monday night, then a mix of clouds and sun with a slight (20%) chance of showers Tuesday highs 67-73 lows 46-50. (seasonal averages high 74 low 48)
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Forecast for the Umpqua Basin including Roseburg: AM clouds, sunny this afternoon, clear tonight, partly cloudy Thursday and Thursday evening, mostly cloudy with a good (50%) chance of showers late Thursday night (under 0.10 in. of rain possible), showers likely (60%) and cooler Friday and Friday evening, then showers late Friday night (0.15 in. of rain possible) highs 85-65 lows 52-56 cooling to near 50 Friday night. Mostly cloudy with showers likely (60%) chance of showers Saturday and Saturday evening, a (40%) chance of showers late Saturday night and Sunday, then mostly cloudy with a slight (20%) chance of showers Sunday night through Tuesday highs 68-73 lows near 50. (seasonal averages high 77 low 53)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this AM, sunny this afternoon, mostly clear this evening, mostly cloudy tonight and Thursday, mostly cloudy with a good (50%) chance of coastal showers Thursday night (0.10 in. of rain possible) and a (40%) chance of inland showers late at night, mostly cloudy with AM coastal with a good (50%) chance of coastal showers Friday with showers likely (60%) inland all day (0.20 in. of rain possible), then showers likely (60%) Friday night highs 63-57 lows 50-52 cooling to 49 Friday night. Mostly cloudy showers likely (60%) Saturday and Saturday evening, a (40%) chance of showers late Saturday night and Sunday, then mostly cloudy with a slight (20%) chance of showers Sunday night through Tuesday highs 59-62 lows near 48. (seasonal averages high 62 low 51).
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Forecast for the Cascades of Lane County: Sunny and warmer today, mostly clear tonight, mostly sunny Thursday AM, partly cloudy with a slight (20%) chance of showers Thursday afternoon, mostly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms in the evening, a (40%) chance of showers late Thursday night, mostly cloudy with a good (50%) chance of showers Friday AM, then showers likely (60%) and cooler Friday afternoon (under 0.01 in. of rain possible) and Friday night free air freezing level 13,000 ft. today, 14,000 ft. tonight, snow level above 8,000 ft. Thursday through Friday, then 6,500 ft. Friday night highs 70-72 cooling to 53 Friday lows 44-42. Mostly cloudy with showers likely (60%) Saturday AM, a good (50%) chance of showers Saturday afternoon, mostly cloudy with a good (50%) chance of showers Saturday night, a mix of clouds and sun with a (40%) chance of showers Sunday afternoon, mostly cloudy with a (30%) chance of showers Sunday evening and a slight (20%) chance of showers at night, a mix of clouds and sun with a slight (20%) chance of showers Monday, mostly cloudy with a slight (20%) chance of showers Monday night, then a mix of clouds and sun with a slight (20%) chance of showers Tuesday snow level 6,500 ft. Saturday, 6,000 ft. Saturday night and Sunday, 6,500 ft. Sunday night, 7,000 ft. Monday, then 7,500 ft. Monday night and Tuesday highs 53-63 lows 38-43.
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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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