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Severe Thunderstorm Watch 539
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WW0539 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Low
Severe Wind 65 kt+ Wind
High High
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.
   SEL9

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 539
   NWS Storm Prediction Center Norman OK
   320 PM CDT Mon Jul 15 2024

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Central and Eastern Iowa
     Northwest Illinois
     Northeast Missouri
     Southwest Wisconsin

   * Effective this Monday afternoon and evening from 320 PM until
     1100 PM CDT.

   * Primary threats include...
     Widespread damaging winds and isolated significant gusts to 85
       mph likely
     Scattered large hail likely with isolated very large hail events
       to 2.5 inches in diameter possible
     A tornado or two possible

   SUMMARY...Intense thunderstorms will soon develop across Iowa in a
   very moist and unstable air mass.  Activity will track eastward and
   organize into a fast-moving bowing cluster, capable of very damaging
   wind gusts and large hail.  A tornado or two is also possible across
   this region.

   The severe thunderstorm watch area is approximately along and 85
   statute miles north and south of a line from 25 miles west of Des
   Moines IA to 5 miles east southeast of Rockford IL. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU9).

   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 538...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2.5 inches. Extreme turbulence and surface wind gusts to 75 knots. A
   few cumulonimbi with maximum tops to 600. Mean storm motion vector
   27035.

   ...Hart
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