April, 2011 Derecho / Wind Gusts

Officially observed thunderstorm wind gusts in knots (filled circles, scale at right) and damaging wind reports (small blue squares) for the period 7:00 a.m. (CDT) April 4, 2011, to 7:00 a.m. April 5, 2011, over parts of the southern and eastern United States. Also included is a list of the six “officially” severe wind gusts recorded during the event at Columbia, South Carolina (CAE and CUB), Memphis, Tennessee (MEM), New Orleans, Louisiana (MSY), Paducah, Kentucky (PAH), and Richmond, Virginia (RIC).

Weather map of Southeastern United States with multicolored circles and legend

Courtesy of the National Oceanic and Atmospheric Administration Storm Prediction Center / Image by G. Carbin