Keywords: Annual severe thunderstorm watch frequency in the United States.svg this script inkscape Legend f4d7d7 0 e9afaf <3 de8787 <6 d35f5f <9 c83737 <12 a02c2c <15 782121 <18 501616 <21 280b0b >21 d0d0d0 No Data Annual_severe_thunderstorm_watch_frequency_in_the_United_States gif 2010-03-09 16 01 UTC Annual_severe_thunderstorm_watch_frequency_in_the_United_States gif Storm Prediction Center derivative work TastyCakes <span class signature-talk >talk</span> original upload log This image is a derivative work of the following images File Annual_severe_thunderstorm_watch_frequency_in_the_United_States gif licensed with PD-USGov-NOAA 2010-03-03T02 34 01Z Ks0stm 800x600 60768 Bytes <nowiki> en Annual severe thunderstorm watch frequency in the United States by county http //www spc noaa gov/wcm/10ysvra gif Storm Prediction Center 2009-03-18 oth</nowiki> Uploaded with derivativeFX Climate maps of the United States Thunderstorm diagrams |