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Mesoscale Discussion 1393
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   MESOSCALE DISCUSSION 1393
   NWS STORM PREDICTION CENTER NORMAN OK
   0341 PM CDT TUE JUL 15 2014

   AREAS AFFECTED...MID-ATLANTIC...SE NY...FAR WRN NEW ENGLAND

   CONCERNING...SEVERE THUNDERSTORM WATCH 423...

   VALID 152041Z - 152215Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 423
   CONTINUES.

   SUMMARY...A SEVERE THREAT IS LIKELY TO CONTINUE THROUGH EARLY
   EVENING ACROSS WW 423. WIND DAMAGE AND HAIL WILL BE THE PRIMARY
   THREATS.

   DISCUSSION...A NEARLY CONTINUOUS LINE OF THUNDERSTORMS IS CURRENTLY
   ONGOING FROM NEAR PHILADELPHIA PA SSWWD TO NEAR RICHMOND VA. THIS
   LINE IS LOCATED TO THE WEST OF AN AXIS OF MODERATE INSTABILITY NEAR
   THE COAST WHERE MLCAPE VALUES ARE ESTIMATED FROM 1500 TO 2500 J/KG.
   THE INSTABILITY SHOULD HELP THE LINE TO CONTINUE ORGANIZING AS IT
   MOVES TOWARD THE COAST. IN ADDITION...THE PHILADELPHIA WSR-88D VWP
   SHOWS UNIDIRECTIONAL WINDS WITH 30 TO 40 KT OF FLOW ABOVE 3 KM. THE
   WIND PROFILE COMBINED WITH STEEP LOW-LEVEL LAPSE RATES ALONG THE
   INSTABILITY AXIS SHOULD BE FAVORABLE FOR A WIND DAMAGE THREAT LATE
   THIS AFTERNOON INTO EARLY EVENING. THE WIND DAMAGE POTENTIAL SHOULD
   BE GREATEST WITH SHORT BOWING LINE SEGMENTS EMBEDDED IN THE LINE.

   ..BROYLES/HART.. 07/15/2014


   ATTN...WFO...BOX...OKX...ALY...PHI...BGM...AKQ...MHX...CTP...
   LWX...RAH...RNK...

   LAT...LON   36507772 36527910 36277914 36268000 36508001 36758012
               36837998 36767971 37037960 37047945 37447924 37517924
               37607937 37777926 37897908 37897895 38417849 38777826
               38827836 39007831 38947820 39417796 39517780 39367776
               39337766 39777740 39987747 40047718 40247690 40417697
               40607691 40777635 40957622 40897591 40997571 41097572
               41137563 41237552 41277508 41127506 41067493 41347473
               41457478 41497443 41637427 41587397 41447397 41497358
               41677350 41507343 41517316 41657298 41567288 41547272
               41437265 41297256 41227251 41247291 40947304 40917316
               40937343 40657343 40607366 40607322 40307322 40237361
               39497384 39077420 38867449 38617474 38277472 37877493
               37577515 37547523 37117543 36877567 36227541 36207581
               36097577 36097606 36087639 35997649 36077665 35877676
               35847691 35947716 36087730 36147726 36307747 36347760
               36447760 36507772 

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Page last modified: July 15, 2014
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