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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 148

NWS STORM PREDICTION CENTER NORMAN OK

300 PM EDT THU APR 5 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHEAST ALABAMA

       CENTRAL AND EASTERN FLORIDA PANHANDLE

       WEST-CENTRAL AND SOUTHWEST GEORGIA



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 300 PM UNTIL

1000 PM EDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH

NORTHWEST OF MACON GEORGIA TO 15 MILES SOUTH SOUTHEAST OF PANAMA

CITY FLORIDA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 143...WW 144...WW

145...WW 146...WW 147...



DISCUSSION...BOWING MCS FROM E-CNTRL INTO SRN AL IS EXPECTED TO

CONTINUE ESEWD THIS AFTERNOON INTO EVENING IN ADVANCE OF VORTICITY

MAXIMUM PIVOTING NEWD INTO THE TN VALLEY.  WIDESPREAD CLOUDS AND

DISRUPTION OF MOIST INFLOW BY CONVECTION OVER THE NERN GOM HAVE

TEMPERED DESTABILIZATION OF AIR MASS DOWNSTREAM FROM MCS.

NONETHELESS...THE PRESENCE OF MLCAPE OF 500-1500 J/KG AND 45-60 KT

OF DEEP WLY SHEAR WILL STILL BE SUPPORTIVE OF FORWARD-PROPAGATION OF

BOWING SYSTEM WITH AN ATTENDANT RISK FOR DAMAGING WINDS AND SOME

HAIL.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 28030.





...MEAD

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