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Severe Thunderstorm Watch 66
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WW0066 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Low Low
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.
   SEL6

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 66
   NWS Storm Prediction Center Norman OK
   1015 PM CDT Fri Mar 27 2020

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     West-central Illinois
     East-central Missouri

   * Effective this Friday night and Saturday morning from 1015 PM
     until 400 AM CDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2.5
       inches in diameter possible
     Isolated damaging wind gusts to 60 mph possible

   SUMMARY...Initially elevated supercell across central Missouri
   should progress near the I-70 corridor with additional development
   possible to the east-northeast into the early morning. Large hail
   will be the primary hazard.

   The severe thunderstorm watch area is approximately along and 45
   statute miles north and south of a line from 15 miles west southwest
   of Columbia MO to 30 miles south of Decatur IL. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU6).

   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
   2.5 inches. Extreme turbulence and surface wind gusts to 50 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   25050.

   ...Grams
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Page last modified: March 28, 2020
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