April 2011 Derecho / Area Affected

Approximate area affected (black contours surrounding gray shading) and storm reports produced (wind, blue squares; estimated or measured wind gust ? 65 kts [74 mph], large black square with yellow center; hail, green squares; tornadoes, red squares and tracks) by the serial derecho of April 4-5, 2011, over the southern and eastern United States. Reports are for the 24-hour period from 7:00 a.m. CDT (1200 UTC) Monday, April 4 to 7:00 a.m. CDT (1200 UTC) Tuesday, April 5.

Weather map of Southeastern United States with affected area in gray with blue and green dots

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