This application presents a browsable archive of SPC issued tornado and severe thunderstorm watches. Each sequential watch is assigned a numeric ID, which uniquely identifies a watch for each year. Up until 2006, the polygon was the valid area of the watch. Since then, the valid area is issued by county and marine zone.
Related Links: View This Watch on SPC Website Download Watches List PDS Watches
Initial Watch Box and Watch By County Outline
Local Storm Reports:
Watch Polygon (KML):
<MultiGeometry><Polygon><outerBoundaryIs><LinearRing><coordinates>-88.13,34.4 -90.56,30.39 -93.08,30.39 -90.76,34.4 -88.13,34.4</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>
Watch Polygon (GeoJSON):
{"type":"MultiPolygon","coordinates":[[[[-88.13,34.4],[-90.56,30.39],[-93.08,30.39],[-90.76,34.4],[-88.13,34.4]]]]}