Tuesday, June 5, 2012

MESOSCALE DISCUSSION 1073





        MESOSCALE DISCUSSION 1073     NWS STORM PREDICTION CENTER NORMAN OK     0234 PM CDT TUE JUN 05 2012          AREAS AFFECTED...MUCH OF SOUTHERN GA/FAR NORTH FL          CONCERNING...SEVERE THUNDERSTORM WATCH 358...          VALID 051934Z - 052100Z          THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 358     CONTINUES.          SUMMARY...SEVERE TSTM WATCH 358 CONTINUES UNTIL 01Z...WITH THE MAIN     SEVERE THREAT CONTINUING ACROSS SOUTH-CENTRAL/SOUTHEAST GA. PRIMARY     HAZARDS REMAIN DAMAGING WINDS/SEVERE HAIL.          DISCUSSION...STRONG/SEVERE TSTMS HAVE BECOME MORE NUMEROUS OVER THE     PAST FEW HOURS /SINCE 18Z/...ESPECIALLY ACROSS     SOUTH-CENTRAL/SOUTHEAST GA IN VICINITY OF A SOUTHWARD SAGGING     FRONTAL BOUNDARY. WHILE SOME INITIAL SUPERCELLS OCCURRED/PRODUCED     LARGE HAIL...CONSIDERABLE CELL MERGERS/CONSOLIDATION NEAR THE     EFFECTIVE FRONTAL ZONE SHOULD CONTINUE TO LEAD TO A DEGREE OF     UPSCALE GROWTH WITH MORE OF A DAMAGING WIND THREAT /VS LARGE HAIL/.     MULTIPLE QUASI-LINEAR/BOWING COMPLEXES...NORTH/SOUTH OF THE MACON     AREA AND AROUND THE I-75 CORRIDOR AS OF 1930Z...WILL CONTINUE TO     POSE A SHORT-TERM SEVERE /MAINLY WIND/ THREAT...BUT OTHERWISE ARE     LIKELY TO ULTIMATELY WEAKEN AS THEY SPREAD EASTWARD AND ENCOUNTER A     MORE STABLE AIRMASS TO THE NORTH OF THE OUTFLOW REINFORCED EFFECTIVE     BOUNDARY. THE MOST INTENSE STORM DEVELOPMENT/REGENERATION SHOULD     CONTINUE TO OCCUR ACROSS SOUTH-CENTRAL/SOUTHEAST GA IN A     PROGRESSIVELY-SOUTHWARD FASHION IN VICINITY OF THE WNW-ESE ORIENTED     EFFECTIVE FRONTAL ZONE.          FARTHER SOUTH...AIDED BY SEA BREEZE BOUNDARIES...ADDITIONAL     STRONG/SEVERE TSTMS WILL REMAIN POSSIBLE ON AN MORE ISOLATED BASIS     ACROSS FAR NORTH FL/FL PANHANDLE WITHIN A MORE MARGINAL     THERMODYNAMIC/VERTICAL SHEAR ENVIRONMENT.          ..GUYER.. 06/05/2012               ATTN...WFO...CHS...JAX...FFC...TAE...MOB... 

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