

107 

WWUS20 KWNS 261205

SEL0

SPC WW 261205

GAZ000-NCZ000-SCZ000-TNZ000-VAZ000-261700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 190

NWS STORM PREDICTION CENTER NORMAN OK

805 AM EDT THU APR 26 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       FAR NORTH GEORGIA

       WESTERN NORTH CAROLINA

       UPSTATE SOUTH CAROLINA

       SOUTHEAST TENNESSEE

       FAR SOUTHWEST VIRGINIA



EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 805 AM UNTIL

100 PM EDT.



HAIL TO 1 INCH 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 75 MILES EAST

NORTHEAST OF BRISTOL TENNESSEE TO 110 MILES WEST SOUTHWEST OF

ASHEVILLE NORTH CAROLINA.  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...CONTINUE...WW 188...WW 189...



DISCUSSION...A LONG-LIVED/FAST MOVING MCS WILL CONTINUE TO QUICKLY

APPROACH/MOVE ACROSS THE SOUTHERN APPALACHIANS REGION THIS MORNING.

EVEN WHILE INSTABILITY FEEDING INTO THE MCS WILL BE TEMPERED AS IT

APPROACHES THE MOUNTAINS...THE WELL-ORGANIZED/FAST MOVING NATURE OF

THE MCS WILL LIKELY MAINTAIN AT LEAST AN ISOLATED DAMAGING

WIND/SEVERE HAIL THREAT ACROSS THE REGION THIS MORNING.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

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

VECTOR 31045.





...GUYER/MEAD

