Severe Thunderstorm Warning

(SVR, WUUS54)

Definition

Severe Thunderstorm Warning
Product issued by the National Weather Service when a severe thunderstorm is occurring, is imminent, or has a high probability of occurring. A severe thunderstorm is a thunderstorm that produces...

  • a tornado,
  • wind gusts of at least 58 mph (50 knots), and/or
  • hail at least ¾" in diameter.

Structural wind damage may imply the occurrence of a severe thunderstorm. A thunderstorm wind 40+ mph (35+ knots) and/or hail of at least ½" is defined as approaching severe. The warning contains...

  • County or counties affected by the severe weather event.
  • Warning expiration time.
  • Location and direction of storm movement.
  • Locations in the path of the storm.
  • Additional information and/or call-to-action statement(s).

Due to the nature of a thunderstorm's size, there may be a severe thunderstorm warning in effect for your county but you may experience mostly blue skies. Know where the storm is in relation to your location and which direction it is moving.

Example

WUUSS4 KFWD 290044
SVRFTW
TXCO27-290145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
643 PM CST TUE MAR 28 2000

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BELL COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 745 PM CST

* AT 643 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  LARGE SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF KILLEEN...MOVING
  EAST AT 20 MPH.

* LOCATIONS IN THE WARNING INCLUDE SALADO...NOLANVILLE...KILLEEN AND
  HARKER HEIGHTS

A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CST TUESDAY
EVENING FOR NORTH CENTRAL TEXAS.

LAT ... LON 3106 9789 3092 9781 3089 9750 3123 9751
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