Half the Country Under Threat of Floods

Red Pins: January 2013 Sinkholes
Orange Pins: February 2013 Sinkholes
Yellow Pins: March 2013 Sinkholes
Green Pins: April 2013 Sinkholes
Blue Pins: May 2013 Sinkholes
Purple Pins: June 2013 Sinkholes
Lt Green Pins: July 2013 Sinkholes
Blue/Grey Pins: August 2013 Sinkholes
Pink Tabs: (W)aterspouts, (F)ish Kills, (T)ornadoes, (I)Human llness
Light Green Tabs: Red Tide
Doppler Radar Blue/White: Low Energy Echo
Doppler Radar Green/Yellow Red: High Energy Echo
Orange/Yellow Circles are 30 Day Seismic activity 2.5+ from USGS