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Severe Thunderstorm Watch 417
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WW0417 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Low
Severe Wind 65 kt+ Wind
High 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.
   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 417
   NWS Storm Prediction Center Norman OK
   210 PM EDT Thu Jun 29 2023

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Southern Illinois
     Western and Central Indiana
     Southwest Lower Michigan
     Lake Michigan

   * Effective this Thursday afternoon and evening from 210 PM until
     800 PM EDT.

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

   SUMMARY...An intense/fast-moving squall line will continue generally
   eastward into Indiana, southern Illinois and possibly far southwest
   Lower Michigan this afternoon. It may eventually weaken as it moves
   across Indiana, but damaging winds, some hail, and possibly a brief
   tornado will all be possible, especially across western Indiana
   through early/mid-afternoon.

   The severe thunderstorm watch area is approximately along and 45
   statute miles east and west of a line from 15 miles west northwest
   of South Bend IN to 10 miles east southeast of Evansville IN. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU7).

   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 415...WW 416...

   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 600. Mean storm motion vector
   28045.

   ...Guyer
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