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Mesoscale Discussion 557
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   MESOSCALE DISCUSSION 0557
   NWS STORM PREDICTION CENTER NORMAN OK
   1154 PM CDT SAT MAY 10 2014

   AREAS AFFECTED...CENTRAL AND ERN KS

   CONCERNING...SEVERE THUNDERSTORM WATCH 139...

   VALID 110454Z - 110630Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 139
   CONTINUES.

   SUMMARY...TSTMS WILL CONTINUE TO DEVELOP/PROPAGATE NWD ACROSS WW
   139...WITH STRONGER STORMS CAPABLE OF PRODUCING HAIL AND/OR DAMAGING
   WINDS.  COUNTIES ACROSS THE SRN EXTENT OF THIS WATCH SHOULD BE ABLE
   TO BE CLEARED FROM S-N AS THE ZONE OF MORE PERSISTENT UPDRAFTS
   SHIFTS NWD.

   DISCUSSION...LAT EVENING SURFACE ANALYSIS SHOWED A WARM FRONT
   EXTENDING EWD ACROSS FAR SOUTH-CENTRAL TO SERN KS INTO SWRN MO.  A
   STRONG SLY LLJ EXTENDING FROM OK INTO THE SRN EXTENT OF THIS WATCH
   IS RESULTING IN STRONG LOW-LEVEL WAA AND AN INFLUX OF MODERATE
   INSTABILITY.  THIS COMBINED WITH EFFECTIVE BULK SHEAR OF 40-55 KT
   SUGGEST SUPERCELLS WILL REMAIN POSSIBLE AS ACTIVITY DEVELOPS NWD
   OVERNIGHT.

   ..PETERS.. 05/11/2014


   ATTN...WFO...SGF...EAX...TOP...ICT...GID...DDC...

   LAT...LON   37369844 38029868 38399897 39109899 39249813 39679779
               39629692 39679568 39469513 38809497 37799502 37619560
               37559626 37449661 37359780 37369844 

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Page last modified: May 11, 2014
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