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Mesoscale Discussion 180
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   MESOSCALE DISCUSSION 0180
   NWS STORM PREDICTION CENTER NORMAN OK
   0321 PM CDT WED MAR 12 2014

   AREAS AFFECTED...CNTRL NC...MUCH OF VA...MD...EXTREME SERN PA...DE

   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

   VALID 122021Z - 122215Z

   PROBABILITY OF WATCH ISSUANCE...60 PERCENT

   SUMMARY...LOW-TOPPED STORMS MAY BEGIN TO STRENGTHEN OVER THE NEXT
   FEW HOURS...WITH PRIMARILY A DAMAGING WIND THREAT. TRENDS WILL
   CONTINUE TO BE MONITORED FOR A POSSIBLE WATCH.

   DISCUSSION...AN INTENSE SURFACE PRESSURE PATTERN CONTINUES TO EVOLVE
   WITH SUBSTANTIAL PRESSURE RISES NOTED BEHIND THE FRONT WITH FALLS
   AHEAD. WHILE INSTABILITY IS WEAK...RELATIVELY GREATER INSTABILITY
   EXISTS ACROSS NC WHERE TEMPERATURES ARE WARMER. HERE...LATEST RADAR
   TRENDS ARE SHOWING STRONGER ECHOES SUGGESTING AN UPTREND IS
   POSSIBLE. THIS WARMER AIR SHOULD GRADUALLY SHIFT INTO VA AND AS THE
   COLD FRONT CONTINUES RAPIDLY EWD...THE BROKEN LINE OF SHOWERS MAY
   SOLIDIFY FURTHER AND POSE A RISK OF DAMAGING WINDS. THE LOW-TOPPED
   NATURE OF THE CELLS SUGGESTS LITTLE HAIL THREAT...WHILE PRESSURE
   FIELDS AS WELL AS MEAN WINDS IN THE LOW LEVELS SUPPORT DAMAGING WIND
   POTENTIAL.

   ..JEWELL/HART.. 03/12/2014


   ATTN...WFO...PHI...AKQ...CTP...LWX...RAH...RNK...GSP...

   LAT...LON   39837614 39637569 39427561 39067556 38777562 37567629
               36887687 34977952 35088063 35278122 35518143 35798110
               37187958 38167882 39287809 39487782 39797651 39837614 

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Page last modified: March 12, 2014
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