Tornado Watch 300

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 300
NWS STORM PREDICTION CENTER NORMAN OK
705 PM CDT SAT MAY 10 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN/CENTRAL ALABAMA
SOUTHERN MIDDLE TENNESSEE
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 705 PM
UNTIL 200 AM CDT.
TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES WEST NORTHWEST OF
MUSCLE SHOALS ALABAMA TO 40 MILES EAST NORTHEAST OF GADSDEN
ALABAMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION...CONTINUE...
WW 293
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WW
295
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WW 297
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WW 298
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WW 299
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DISCUSSION...TSTMS ARE BEGINNING TO FORM INVOF A WARM FRONT
BISECTING NRN AL. THE FRONT IS EXPECTED TO LIFT NWD INTO SRN MIDDLE
TN WITH TIME THIS EVENING. MEANWHILE...SUPERCELL TSTMS UPSTREAM
CROSSING THE MS RVR WILL MOVE ESEWD AND BEGIN MOVING INTO MIDDLE TN
AND NRN/CNTRL PARTS OF AL LATER THIS EVENING. THOUGH LOW-LEVEL
SHEAR IS MODEST ATTM...IT IS EXPECTED TO INCREASE THROUGH THE
EVENING AS THE UPSTREAM IMPULSE MOVES SEWD AND THE SLY LLJ
INTENSIFIES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24035.
...RACY/EVANS