________________

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.

________________

Advisories: NONE AT THIS TIME.

_______________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with a good (50%) chance of showers this AM, a slight (20%) chance of showers this afternoon (under 0.10 in. of rain possible), a slight (20%) chance of showers this evening, just mostly cloudy late tonight and Tuesday, partly cloudy late Tuesday night, a mix of clouds and sun Wednesday AM, mostly sunny in the afternoon, then mostly clear Wednesday night highs 63-75 lows 47-44. Mostly sunny Thursday, partly cloudy with a slight (20%) chance of showers Thursday night, a mix of clouds and sun with a slight (20%) chance of showers Friday afternoon, partly cloudy with a slight (20%) chance of showers Friday night, a mix of clouds and sun with a slight (20%) chance of showers Saturday and Sunday and a slight (20%) chance of showers Saturday night highs 80-65  warming to 74 Saturday lows 53-50. (seasonal averages high 74 low 48)

_______________

Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a (30%) chance of showers today (under 0.10 in. of rain possible), just mostly cloudy tonight, mostly cloudy with a slight (20%) chance of  showers Tuesday AM, partly cloudy Tuesday afternoon through Wednesday AM, mostly sunny in the afternoon, mostly clear in the evening, partly cloudy late Wednesday night highs 68-79 lows 46-52. Partly cloudy Thursday AM, mostly sunny Thursday afternoon, mostly clear in the evening, partly cloudy with a slight (20%) chance of showers late Thursday night, partly cloudy and cooler with a slight (20%) chance of showers Friday, partly cloudy in the evening and mostly cloudy at night with a (30%) chance of showers Friday night and Saturday, mostly cloudy with a (30%) chance of showers Saturday night, then mostly cloudy with a slight (20%) chance of showers Sunday highs 82-68 warming to 74 Sunday lows near 52. (seasonal averages high 76 low 52)

_________________

Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with a slight (20%) chance of showers today, partly cloudy this evening, just mostly cloudy tonight, mostly cloudy with a slight (20%) chance of showers Tuesday AM, partly cloudy in the afternoon and Tuesday night, then partly cloudy Wednesday AM, mostly sunny in the afternoon, then partly cloudy Wednesday night highs 59-63 lows 46-50. Partly cloudy Thursday, mostly clear in the evening, partly cloudy with a slight (20%) of showers late Thursday night, partly cloudy Friday AM, mostly cloudy with a (30%) chance of showers Friday afternoon, a (40%) chance of showers Friday night and Saturday, then mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday highs 64-60  warming to 63 Sunday lows near 50. (seasonal averages high 62 low 51).

________________

Forecast for the Cascades of Lane County: Mostly cloudy with a good (50%) chance of showers today (0.10 in. of rain possible), a (40%) chance of showers this evening, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible), mostly cloudy Tuesday AM, partly cloudy and warmer in the afternoon,  just partly cloudy Tuesday night, a mix of clouds and sun Wednesday AM, mostly sunny and warmer in the afternoon, then mostly clear Wednesday night snow level 6,000 ft. today and tonight, free air freezing level 7,500 ft. Tuesday, 9,000 ft. Tuesday night, 12,000 ft. Wednesday, then 13,000 ft. Wednesday night highs 46-66 lows 36-44. Mostly sunny Thursday AM, partly cloudy with a slight (20% ) chance of showers in the afternoon and Thursday night,  a mix of clouds and sun Friday with slight (20%) chance of AM showers, a (30%) chance of showers Friday afternoon and Friday night, a mix of clouds and sun with a (30%) chance of showers Saturday and Sunday with mostly cloudy skies and a (30%) chance of showers Saturday night, snow level above 8,000 ft. Thursday through Friday night, 7,500 ft. Saturday, then 8,000 ft. Saturday night and Sunday highs 73-52 warming to near 63 Sunday lows 43-40.

________________

**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.

________________

Get your local Eugene-Springfield news on-line at Eugene Daily News.com

________________