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.

April 2011 Derecho / Area Affected

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