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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 351

NWS STORM PREDICTION CENTER NORMAN OK

115 PM EDT SAT JUN 19 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF CENTRAL AND NORTHERN ALABAMA

       A LARGE PART OF NORTHERN GEORGIA

       PARTS OF WESTERN NORTH CAROLINA

       PARTS OF WESTERN SOUTH CAROLINA



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 115 PM UNTIL

900 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 55

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTHWEST

OF SELMA ALABAMA TO 15 MILES SOUTH SOUTHEAST OF ASHEVILLE NORTH

CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 350...



DISCUSSION...THUNDERSTORMS HAVE DEVELOPED ALONG THE SEWD MOVING

OUTFLOW BOUNDARY FROM TN/NC BORDER SWWD TO NRN AL.  WITH A VERY

MOIST AND MDTLY UNSTABLE AIR MASS AVAILABLE AHEAD OF BOUNDARY...A

FEW SEVERE STORMS INCLUDING DAMAGING DOWNBURSTS WINDS WILL DEVELOP.

GIVEN THE WEAK DEEP LAYER SHEAR...STORMS WILL BE PULSE/MULTICELLULAR

AS THEY DEVELOP SEWD THRU THE WATCH



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 550. MEAN STORM

MOTION VECTOR 31015.





...HALES

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