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Severe Thunderstorm Watch 601
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WW0601 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL1

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 601
   NWS Storm Prediction Center Norman OK
   550 PM CDT Mon Aug 5 2024

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Northern Illinois
     Northwest Indiana
     Southern Wisconsin

   * Effective this Monday afternoon from 550 PM until Midnight CDT.

   * Primary threats include...
     Scattered damaging wind gusts to 65 mph possible
     Scattered large hail events to 1.5 inches in diameter possible
     A tornado or two possible

   SUMMARY...Isolated to scattered strong to severe thunderstorms are
   forecast this evening.  A few of the stronger storms may evolve into
   supercells posing a risk for large hail (1 to 1.5 inches in
   diameter), severe gusts, and perhaps a tornado.  Strong to severe
   multicells are forecast near the Indiana and Illinois border this
   evening.  A localized risk for hail and wind may accompany these
   storms.  By later this evening, other storms may develop and move
   into western parts of the Watch and yield a threat for locally
   damaging gusts and perhaps large hail.

   The severe thunderstorm watch area is approximately along and 45
   statute miles north and south of a line from 70 miles west northwest
   of Rockford IL to 85 miles east southeast of Marseilles IL. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU1).

   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 597...WW 598...WW
   599...WW 600...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   27020.

   ...Smith
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