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Mesoscale Discussion 1387
MD 1387 graphic
   
   MESOSCALE DISCUSSION 1387
   NWS STORM PREDICTION CENTER NORMAN OK
   1103 AM CDT WED JUN 23 2004
   
   AREAS AFFECTED...SERN LA / SERN MS / SRN AL / WRN FL PANHANDLE
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 231603Z - 231730Z
   
   THUNDERSTORMS SHOULD INCREASE ACROSS THE LOWER MS VALLEY REGION EWD
   INTO SRN AL / WRN FL OVER THE NEXT COUPLE OF HOURS.  WW MAY BE
   REQUIRED.
   
   VERY MOIST LOW-LEVEL AIRMASS EXISTS ACROSS THIS REGION WITH
   DEWPOINTS GENERALLY IN THE MID 70S.  WEAK / BROKEN LINE OF STORMS IS
   INDICATED FROM S CENTRAL MS SWD INTO SERN LA ALONG APPARENT OUTFLOW
   BOUNDARY...WHERE 1000 TO 2000 J/KG MEAN-LAYER CAPE IS INDICATED. 
   AHEAD OF THIS BOUNDARY...VISIBLE SATELLITE INDICATES SOME CLEARING
   AND THUS THE LIKELIHOOD FOR HEATING / FURTHER DESTABILIZATION OVER
   THE NEXT COUPLE OF HOURS.  THIS WOULD SUGGEST THAT AN INCREASE IN
   COVERAGE / INTENSITY OF ONGOING CONVECTION CAN BE EXPECTED.
   
   ALTHOUGH DEEP-LAYER WIND FIELD IS RELATIVELY WEAK ALONG THE
   IMMEDIATE GULF COAST...MORNING RAOBS AND LATEST VWP DATA INDICATE
   MODERATE / GENERALLY UNIDIRECTIONAL FLOW WHICH WOULD SUGGEST SOME
   POTENTIAL FOR STORM ORGANIZATION.  WITH WBZ HEIGHTS FAIRLY
   HIGH...HAIL THREAT SHOULD REMAIN LIMITED.  ALTHOUGH SOME LOW-LEVEL
   SHEAR AND HIGH DEWPOINTS / LOW LCLS SUGGEST THAT A BRIEF / WEAK
   TORNADO CANNOT BE RULED OUT...MAIN THREAT WOULD LIKELY BE DAMAGING
   WINDS -- PARTICULARLY GIVEN ANY MESOSCALE ORGANIZATION OF STORMS
   ALONG EWD-MOVING OUTFLOW BOUNDARY.
   
   ..GOSS.. 06/23/2004
   
   
   ATTN...WFO...TAE...BMX...MOB...JAN...LIX...LCH...
   
   32598907 33298681 33008580 31868565 30208593 30188868
   29068912 29049089 29639206 30719023 
   
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