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 Issuance202201020405-KWNS-WWUS30-SAW8
SEL Issuance202201020410-KWNS-WWUS20-SEL8
Watch Probs202201020404-KWNS-WWUS40-WWP8
Issue:2022-01-02 04:10 UTC
Expired/Cancelled:2022-01-02 12:00 UTC
WOU Outline Shapefiles05Z, 06Z, 07Z, 08Z, 09Z, 10Z, 11Z, 12Z,

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>-88.29,33.45 -84.55,34.63 -84.55,33.04 -88.29,31.86 -88.29,33.45</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>

Watch Polygon (GeoJSON):

{"type":"MultiPolygon","coordinates":[[[[-88.29,33.45],[-84.55,34.63],[-84.55,33.04],[-88.29,31.86],[-88.29,33.45]]]]}