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>-92.55,35.23 -94.08,32.39 -96.82,32.39 -95.38,35.23 -92.55,35.23</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>
Watch Polygon (GeoJSON):
{"type":"MultiPolygon","coordinates":[[[[-92.55,35.23],[-94.08,32.39],[-96.82,32.39],[-95.38,35.23],[-92.55,35.23]]]]}