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 Issuance201801220356-KWNS-WWUS30-SAW2
SEL Issuance201801220400-KWNS-WWUS20-SEL2
Watch Probs201801220354-KWNS-WWUS40-WWP2
Issue:2018-01-22 04:00 UTC
Expired/Cancelled:2018-01-22 10:03 UTC
WOU Outline Shapefiles05Z, 06Z, 07Z, 08Z, 09Z, 10Z,

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>-91.16,36.45 -93.33,31.44 -95.19,31.44 -93.13,36.45 -91.16,36.45</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>

Watch Polygon (GeoJSON):

{"type":"MultiPolygon","coordinates":[[[[-91.16,36.45],[-93.33,31.44],[-95.19,31.44],[-93.13,36.45],[-91.16,36.45]]]]}