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Mesoscale Discussion 1258
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   MESOSCALE DISCUSSION 1258
   NWS STORM PREDICTION CENTER NORMAN OK
   0638 PM CDT TUE JUN 30 2015

   AREAS AFFECTED...CENTRAL/EASTERN PA INTO WESTERN NJ AND SOUTHERN NY

   CONCERNING...SEVERE THUNDERSTORM WATCH 371...372...

   VALID 302338Z - 010045Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   371...372...CONTINUES.

   SUMMARY...SOME STRONG TO ISOLATED SEVERE STORMS WILL CONTINUE THE
   NEXT HOUR OR SO ACROSS PARTS OF CENTRAL PA. THE THREAT SHOULD REMAIN
   ISOLATED AND BRIEF AND A NEW WATCH IS NOT EXPECTED.

   DISCUSSION...SOME STRONG TO BRIEFLY SEVERE THREAT WILL CONTINUE THE
   NEXT HOUR OR SO ACROSS NORTH-CENTRAL PA WHERE STORMS HAVE RECENTLY
   INTENSIFIED SOME ALONG A WEAK TROUGH/CONFLUENCE ZONE. EFFECTIVE
   SHEAR ACROSS THE AREA IS STILL FAVORABLE...IN CONJUNCTION WITH WEAK
   INSTABILITY...TO SUPPORT A GUSTY TO LOCALLY STRONG WIND THREAT.
   HOWEVER...WITH THE LOSS OF DAYTIME HEATING AND ENSUING BOUNDARY
   LAYER STABILIZATION THE THREAT WILL BE LIMITED AND BRIEF. WHILE A
   NEW WATCH IS NOT EXPECTED...A LOCAL EXTENSION MAY BE NEEDED
   DEPENDING ON STORM TRENDS. ELSEWHERE ACROSS WW 372...THE SEVERE
   THREAT WILL CONTINUE TO DIMINISH INTO THE EVENING HOURS.

   ..LEITMAN.. 06/30/2015


   ATTN...WFO...OKX...ALY...PHI...BGM...BUF...CTP...LWX...PBZ...
   RLX...CLE...

   LAT...LON   41647976 41767965 41897949 42007903 41997413 41187419
               40107471 39757599 39398052 41647976 

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