SEVERE THUNDERSTORM WATCH NUMBER 300
NWS STORM PREDICTION CENTER NORMAN OK
940 AM EDT FRI MAY 20 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN AND EASTERN ALABAMA
NORTHERN AND CENTRAL GEORGIA
MIDDLE TENNESSEE
EFFECTIVE THIS FRIDAY MORNING AND AFTERNOON FROM 940 AM UNTIL 500
PM EDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST OF
MUSCLE SHOALS ALABAMA TO 85 MILES EAST OF MACON GEORGIA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU0).
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...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 299. WATCH NUMBER 299 WILL NOT BE
IN EFFECT AFTER 940 AM EDT.
DISCUSSION...LINE OF STRONG/SEVERE THUNDERSTORMS WILL CONTINUE SEWD
ACROSS NRN AL INTO GA WITH INTENSIFICATION EXPECTED LATER IN
MORNING AS AIRMASS BECOMES MODERATELY UNSTABLE WITH STRONG SFC
HEATING. ADDITIONAL SEVERE THUNDERSTORMS WILL LIKELY DEVELOP ALONG
E/W FRONT DROPPING SWD THRU MID TN DURING DAY AHEAD OF POTENT S/WV
TROUGH MOVING SEWD ACROSS TN VALLEY. PRIMARY THREAT WILL BE LARGE
HAIL GIVEN INSTABILITY AND FAVORABLE VEERING SHEAR PROFILES...AND
DAMAGING WINDS WITH SHORT LINES/BOWS THAT LIKELY WILL EVOLVE OUT OF
ANY MULTICELL STORM CLUSTER.
