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Severe Thunderstorm Watch 623
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WW0623 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL3

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 623
   NWS Storm Prediction Center Norman OK
   400 PM CDT Thu Aug 15 2024

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Southern Iowa
     Northern Missouri

   * Effective this Thursday afternoon and evening from 400 PM until
     1100 PM CDT.

   * Primary threats include...
     Scattered damaging winds likely with isolated significant gusts
       to 75 mph possible
     Scattered large hail likely with isolated very large hail events
       to 2 inches in diameter possible
     A tornado or two possible

   SUMMARY...Widely scattered thunderstorms are expected to form this
   afternoon into this evening across southern Iowa/northern Missouri
   in an environment that supports supercells.  Large hail of 1-2
   inches in diameter, damaging gusts of 60-75 mph and an isolated
   tornado or two will be possible.

   The severe thunderstorm watch area is approximately along and 60
   statute miles north and south of a line from 60 miles north
   northwest of Saint Joseph MO to 55 miles east southeast of Ottumwa
   IA. For a complete depiction of the watch see the associated watch
   outline update (WOUS64 KWNS WOU3).

   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.

   &&

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2 inches. Extreme turbulence and surface wind gusts to 65 knots. A
   few cumulonimbi with maximum tops to 550. Mean storm motion vector
   29030.

   ...Thompson
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