1. Severe Wx Products
  2. Storm Prediction Center Convective Watch Archive

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

All active watches at issuance:

Previous Watch   --   Next Watch

Type:TOR
Watch #:
SAW Issuance201901192117-KWNS-WWUS30-SAW3
SEL Issuance201901192120-KWNS-WWUS20-SEL3
Watch Probs201901192115-KWNS-WWUS40-WWP3
Issue:2019-01-19 21:20 UTC
Expired/Cancelled:2019-01-20 03:00 UTC
WOU Outline Shapefiles22Z, 23Z, 00Z, 01Z, 02Z, 03Z,

Archive Status:

  • Watch archive should be complete back to 1997.
  • RADAR composite is mostly complete back to 1997.
  • Local Storm Reports are available after 2002.

Initial Watch Box and Watch By County Outline


Local Storm Reports:

Watch Polygon (KML):

<MultiGeometry><Polygon><outerBoundaryIs><LinearRing><coordinates>-83.87,33.2 -85.33,30.23 -87.18,30.23 -85.77,33.2 -83.87,33.2</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>

Watch Polygon (GeoJSON):

{"type":"MultiPolygon","coordinates":[[[[-83.87,33.2],[-85.33,30.23],[-87.18,30.23],[-85.77,33.2],[-83.87,33.2]]]]}