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MESOSCALE DISCUSSION 0320
NWS STORM PREDICTION CENTER NORMAN OK
0909 AM CDT SUN MAR 24 2013
AREAS AFFECTED...GA...FL
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 241409Z - 241515Z
PROBABILITY OF WATCH ISSUANCE...20 PERCENT
SUMMARY...A SWATH OF STRONG TO ISOLATED SEVERE STORMS WILL CONTINUE
MOVING QUICKLY EAST ACROSS NE FL AND SE GA THROUGH THE MORNING.
OVERALL SEVERE THREAT WILL REMAIN QUITE LIMITED IN SPACE AND TIME
AND THIS WILL LIKELY PRECLUDE THE NEED FOR A WATCH.
DISCUSSION...A RELATIVELY ROBUST CORRIDOR OF DEEP CONVECTION
CONTINUES TO SPREAD EAST ACROSS NRN FL/SE GA COINCIDENT WITH STRONG
WARM/MOIST CONVEYOR BELT AHEAD AND SOUTH OF WEAK SECONDARY SFC LOW
OVER SRN GA. DESPITE POTENT DEEP-LAYER FLOW FIELDS...OVERALL STORM
STRUCTURE DOES NOT APPEAR THAT WELL ORGANIZED AND RECENT IR
CLOUD-TOP WARNING AND LIGHTNING TRENDS SUGGEST CONVECTION MAY BE
ENCOUNTERING GREATER INHIBITION /WARMER AIR ALOFT/ AS INDICATED IN
KJAX MORNING SOUNDING. ONE EXCEPTION IS A LONGER-LIVED AND HIGHER
REFLECTIVITY CORE/UPDRAFT MOVING ACROSS BAKER COUNTY FL ATTM. THIS
STORM WILL MOVE ACROSS THE JAX AREA AND ACROSS THE COAST IN THE NEXT
HOUR WITH SOME CHANCE FOR SMALL HAIL AND PERHAPS LOCALLY STRONG TO
DAMAGING WINDS GIVEN CELL MOTION AROUND 50KT. ELSEWHERE IN NORTH FL
AND SRN GA...MOST ACTIVITY SHOULD REMAIN BELOW SEVERE THRESHOLDS AND
MOVE OUT OVER THE ATLANTIC COAST BY NOON.
..CARBIN/HART.. 03/24/2013
ATTN...WFO...CHS...TBW...JAX...
LAT...LON 32048180 32338115 30748132 29798132 29198235 29258317
29508283 30868242 32048180
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