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:SVR
Watch #:
SAW Issuance202201191904-KWNS-WWUS30-SAW6
SEL Issuance202201191905-KWNS-WWUS20-SEL6
Watch Probs202201191902-KWNS-WWUS40-WWP6
Issue:2022-01-19 19:05 UTC
Expired/Cancelled:2022-01-20 03:13 UTC
WOU Outline Shapefiles20Z, 21Z, 22Z, 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>-91.43,33.02 -93.74,29.27 -96.06,29.27 -93.85,33.02 -91.43,33.02</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>

Watch Polygon (GeoJSON):

{"type":"MultiPolygon","coordinates":[[[[-91.43,33.02],[-93.74,29.27],[-96.06,29.27],[-93.85,33.02],[-91.43,33.02]]]]}