

996 

WWUS20 KWNS 161003

SEL9

SPC WW 161003

GAZ000-NCZ000-SCZ000-161700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 149

NWS STORM PREDICTION CENTER NORMAN OK

600 AM EDT SAT APR 16 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN GEORGIA

       WESTERN NORTH CAROLINA

       WESTERN AND CENTRAL SOUTH CAROLINA



EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 600 AM UNTIL

100 PM EDT.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH NORTHWEST OF

CHARLOTTE NORTH CAROLINA TO 55 MILES SOUTH SOUTHEAST OF MACON

GEORGIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 147. WATCH NUMBER 147 WILL NOT BE IN EFFECT AFTER

600 AM EDT. CONTINUE...WW 148...



DISCUSSION...SATELLITE AND VWP DATA SHOW AN UPR LVL IMPULSE ENTERING

MIDDLE TN ATTM...ROUNDING BASE OF SLOWLY-PROGRESSIVE IL UPR LOW.

ASCENT DOWNSTREAM OF THIS FEATURE...COUPLED WITH INCREASINGLY MOIST

LOW-LVL INFLOW UP THE SAVANNAH RVR VLY AND GA/SC CSTL PLN...MAY

SUPPORT SUSTENANCE OF EXISTING TSTMS MOVING INTO/ACROSS WW

AREA...AND/OR SUPPORT NEW DEVELOPMENT.  COUPLED WITH STRENGTH AND

CHARACTER OF WIND FIELD...AND EVENTUAL ONSET OF DAYTIME HEATING...

SETUP MAY YIELD A FEW SUPERCELLS POSING A THREAT FOR TORNADOES...

ADDITION TO LOCALLY DMGG WIND.



AVIATION...TORNADOES AND 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 24040.





...CORFIDI

