The derecho from Monday should provide fodder for the IEM Daily Feature for the foreseeable future! Today's plot presents one minute interval wind observations from the Des Moines Airport weather station. The chart shows minute by minute readings of wind speed and direction (two minute average of five second samples) and wind gust (peak 5 second sample reading). The quick rise in wind speed is readily seen with the peak value of 50 MPH sustained with gusts to 75 MPH shown. Wind gusts over 50 MPH were observed for over a twenty minute period!

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Tags:   derecho   2020derecho