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Mesoscale Discussion 348
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   MESOSCALE DISCUSSION 0348
   NWS STORM PREDICTION CENTER NORMAN OK
   0856 PM CDT FRI APR 17 2015

   AREAS AFFECTED...NE CO...SW NE...WRN KS

   CONCERNING...TORNADO WATCH 69...

   VALID 180156Z - 180330Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 69 CONTINUES.

   SUMMARY...THE SEVERE TSTM/TORNADO THREAT CONTINUES ACROSS WW
   69...BUT THIS THREAT MAY GRADUALLY DECREASE WITH TIME.

   DISCUSSION...AN OVERALL DECREASE IN INTENSITY OF CONVECTION IS NOTED
   ACROSS WW 69 IN CONJUNCTION WITH THE ONSET OF NOCTURNAL
   BOUNDARY-LAYER COOLING. OBSERVED AND MODEL FORECAST PROFILES STILL
   SUPPORT SOME SEVERE THREAT ACROSS THE AREA WITH SUFFICIENT DEEP
   SHEAR...500-1000 J/KG MUCAPE...SOME VEERING/STRENGTHENING OF WIND
   WITH HEIGHT...AND AN INCREASING LOW-LEVEL JET. HAIL WILL BECOME THE
   PREDOMINANT THREAT WITH THE STRONGEST CELLS AS THE BOUNDARY LAYER
   CONTINUES TO DECOUPLE AND STORMS BECOME ELEVATED.

   ..COOK/COHEN/CORFIDI.. 04/18/2015


   ATTN...WFO...GID...LBF...DDC...GLD...AMA...PUB...BOU...CYS...

   LAT...LON   36990073 37390147 37840201 39040273 39780338 40400379
               41000376 41200340 41240240 41330147 41130054 40670021
               40090005 39599974 39139943 38629916 38209904 37739899
               37279895 37019919 37000002 37000028 36990073 

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Page last modified: April 18, 2015
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