Storm Prediction Center Severe Thunderstorm Watch 534

Note: 
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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   SEL4

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 534
   NWS Storm Prediction Center Norman OK
   325 PM MDT Thu Jul 30 2026

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Western into North-Central South Dakota

   * Effective this Thursday afternoon and evening from 325 PM until
     900 PM MDT.

   * Primary threats include...
     Scattered damaging wind gusts to 70 mph possible
     Isolated large hail events to 1 inch in diameter possible

   SUMMARY...Widely scattered to scattered thunderstorms are forecast
   to develop and intensify through the early evening.  A couple of
   small thunderstorm clusters may evolve ahead of an upper disturbance
   as some propensity for storms to produce outflow acts to consolidate
   the severe risk by early evening.  Severe gusts 60 to 70 mph are the
   primary hazard but isolated large hail near 1 inch in diameter is
   possible too.

   The severe thunderstorm watch area is approximately along and 80
   statute miles east and west of a line from 50 miles east northeast
   of Buffalo SD to 60 miles west southwest of Pierre SD. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU4).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Severe Thunderstorm Watch means conditions are
   favorable for severe thunderstorms in and close to the watch area.
   Persons in these areas should be on the lookout for threatening
   weather conditions and listen for later statements and possible
   warnings. Severe thunderstorms can and occasionally do produce
   tornadoes.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 533...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
   cumulonimbi with maximum tops to 450. Mean storm motion vector
   29020.

   ...Smith

Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.

   SAW4 
   WW 534 SEVERE TSTM SD 302125Z - 310300Z
   AXIS..80 STATUTE MILES EAST AND WEST OF LINE..
   50ENE 2WX/BUFFALO SD/ - 60WSW PIR/PIERRE SD/
   ..AVIATION COORDS.. 70NM E/W /58NW DPR - 57WSW PIR/
   HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 450. MEAN STORM MOTION VECTOR 29020.

   LAT...LON 45830090 44039979 44030301 45830422

   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU4.

Watch 534 Status Report Message has not been issued yet.

Note:
 Click for Complete Product Text.

Tornadoes

Wind

Hail

Combined Severe Hail/Wind

For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The “Low” category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
“Moderate” from 30% to 60%, and “High” from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.