April 28, 2011 Calhoun County Tornado Damage Survey

CALHOUN COUNTY TORNADO

THE NWS-COLUMBIA SURVEY TEAM FOUND DAMAGE ASSOCIATED WITH AN EF1 TORNADO THAT OCCURED NEAR 750 AM IN A RURAL AREA SOUTH OF SUMTER, SC. THE PATH LENGTH WAS 12 MILES WITH INTERMITTENT TOUCHDOWNS. THE WIDTH WAS FOUND TO BE 1/8 MILE WIDE. THE SURVEY TEAM FOUND NUMEROUS TREES SNAPPED AND DAMAGED AND LARGE TREE LIMBS ON ROOFS OF HOMES.

RADAR VIEW

KCAE Doppler Radar 4 panel view using GR2Analyist software from around 7:35am. 0.5 deg Reflectivity with inflow notch where the tornado was located (upper left ), 0.5 deg Storm Relative Velocity (lower left), 0.5 deg Base Velocity (upper right) and 0.5 deg Spectum Width (lower right). Storm Relative Velocity was showing greater than 30 knots of rotational wind shear and Base Velocity was showing greater than 50 knots outbound winds at around 3000 ft AGL.

FORT MOTTE DAMAGE PHOTOS

Click on the image to view the full size image. (credit photos to NOAA/NWS)