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MESOSCALE DISCUSSION 0273
NWS STORM PREDICTION CENTER NORMAN OK
1112 AM CDT THU MAR 26 2009
AREAS AFFECTED...FL PANHANDLE
CONCERNING...TORNADO WATCH 68...
VALID 261612Z - 261715Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 68 CONTINUES.
SQUALL LINE IS PROGRESSING STEADILY EWD ACROSS THE FL PANHANDLE AND
NRN GULF OF MEXICO INTO INCREASINGLY HOSTILE THERMODYNAMIC
ENVIRONMENT...MLCAPE LESS THAN 500 J/KG. AS PRIMARY LLJ LIFTS NEWD
INTO THE MIDDLE ATLANTIC IT APPEARS SECONDARY MORE SUBTLE FORCING
WILL SHIFT INTO THE NRN GULF OF MEXICO WHERE A WEAKER LOWER LEVEL
JETLET WILL LIKELY AID ADDITIONAL THUNDERSTORM DEVELOPMENT FROM SERN
LA DELTA REGION INTO BACK SIDE OF E-W ORIENTED CONVECTIVE LINE.
DOWNSTREAM...LEADING EDGE OF WELL DEFINED BOW MAY CLIP GULF COUNTY
FL BUT GENERAL TRENDS FAVOR STRONGER UPDRAFTS REMAINING OVER THE NRN
GULF.
..DARROW.. 03/26/2009
ATTN...WFO...TAE...
LAT...LON 30068691 31398465 30378417 29048495 28958815 29268893
30068691
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