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>-91.6189120557,32.5517155733 -91.237203448,29.6757866079 -86.902796552,29.6757866079 -87.1511433487,32.5517155733 -91.6189120557,32.5517155733</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>
Watch Polygon (GeoJSON):
{"type":"MultiPolygon","coordinates":[[[[-91.618912056,32.551715573],[-91.237203448,29.675786608],[-86.902796552,29.675786608],[-87.151143349,32.551715573],[-91.618912056,32.551715573]]]]}