Derecho in Progress

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Particularly Dangerous Situation Severe Thunderstorm Watch 
just issued an in effect until 6am EDT. 
Wind gusts to 80 mph forecast. 



UPDATE: Dayton Radar 12:11am EDT.
I've been doing some analysis on the derecho with the Dayton TDWR and it clearly has winds near 80 mph (see scale at lower left of image) near Coldwater, Ohio. This is a very serious weather situation. Please prepare for power failures in the region.



ORIGINAL POSTING:
People have been asking, "Where is the Derecho?" It is shown by the arrows below:


Here is a closer image. Winds estimated by Doppler radar are gusting to about 70 mph.

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