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Tornado Watch 171
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WW0171 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate 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.
   SEL1

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Tornado Watch Number 171
   NWS Storm Prediction Center Norman OK
   825 PM CDT Fri Apr 28 2017

   The NWS Storm Prediction Center has issued a

   * Tornado Watch for portions of 
     Southern Indiana
     Northern Kentucky

   * Effective this Friday night and Saturday morning from 825 PM
     until 100 AM CDT.

   * Primary threats include...
     A few tornadoes possible
     Scattered large hail and isolated very large hail events to 2.5
       inches in diameter possible
     Isolated damaging wind gusts to 70 mph possible

   SUMMARY...Clusters of storms along a surface boundary will likely
   retain supercell structures for the next few hours, with an
   attendant risk for large hail and damaging winds.  The near-storm
   environment is favorable for some tornado risk for the next few
   hours with the storms near the Ohio River, within the northern edge
   of the warm sector.

   The tornado watch area is approximately along and 30 statute miles
   north and south of a line from 15 miles west northwest of Evansville
   IN to 45 miles east of Louisville KY. For a complete depiction of
   the watch see the associated watch outline update (WOUS64 KWNS
   WOU1).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Tornado Watch means conditions are favorable for
   tornadoes and 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.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 170...

   AVIATION...Tornadoes and a few severe thunderstorms with hail
   surface and aloft to 2.5 inches. Extreme turbulence and surface wind
   gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean
   storm motion vector 26035.

   ...Thompson
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Page last modified: April 29, 2017
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