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Severe Thunderstorm Watch 219
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WW0219 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Very Low Very Low
Severe Wind 65 kt+ Wind
Low Very 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.
   SEL9

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 219
   NWS Storm Prediction Center Norman OK
   1150 PM CDT Mon May 15 2017

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Northwest Iowa
     Southwest Minnesota
     Far northeast Nebraska
     Southeast South Dakota

   * Effective this Monday night and Tuesday morning from 1150 PM
     until 500 AM CDT.

   * Primary threats include...
     Isolated very large hail events to 2 inches in diameter possible
     Isolated damaging wind gusts to 70 mph possible

   SUMMARY...Strong to locally severe thunderstorms will continue to
   develop northeastward across the region through the overnight hours.
   Steep lapse rates and moderate elevated instability will support the
   possibility of severe hail and perhaps locally damaging winds. These
   storms have a history of producing severe-caliber wind gusts across
   central/east-central Nebraska.

   The severe thunderstorm watch area is approximately along and 45
   statute miles north and south of a line from 25 miles west of
   Yankton SD to 25 miles north northeast of Spencer IA. 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 214...WW 215...WW
   216...WW 218...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 550. Mean storm motion vector
   24030.

   ...Guyer
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Page last modified: May 16, 2017
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