

801 

WWUS20 KWNS 182324

SEL7

SPC WW 182324

GAZ000-NCZ000-SCZ000-CWZ000-190600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 507

NWS STORM PREDICTION CENTER NORMAN OK

725 PM EDT SAT JUN 18 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHEASTERN GEORGIA

       SOUTHERN NORTH CAROLINA

       THE SOUTH CAROLINA COASTAL PLAIN

       COASTAL WATERS



EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 725 PM

UNTIL 200 AM 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 45

STATUTE MILES EITHER SIDE OF A LINE FROM 20 MILES NORTH NORTHEAST

OF WILMINGTON NORTH CAROLINA TO 80 MILES SOUTHWEST OF ORANGEBURG

SOUTH CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 501...WW 502...WW

503...WW 504...WW 505...WW 506...



DISCUSSION...SRN PART OF NRN-MOST MCS THAT CROSSED THE TN/OH VLY

REGION EARLIER TODAY SHOULD CONTINUE E TO THE SRN NC CST...POSING A

CONTINUING THREAT FOR AT LEAST MARGINALLY SVR WIND.  OTHER STORMS

EXPECTED TO MOVE/DEVELOP GENERALLY ESE INTO CNTRL/SRN SC

AND...EVENTUALLY...SE GA...IN ASSOCIATION WITH COLD POOL OF SRN

MEMBER OF THE EARLIER TN VLY MCS PAIR. DEGREE OF INSTABILITY AND

PROXIMITY OF SRN STREAM MID LVL NWLY SPEED MAX SUGGEST THAT SVR

THREAT /MAINLY IN THE FORM OF LOCALLY DMGG WIND/ COULD PERSIST

THROUGH EARLY SUN.



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 500. MEAN STORM

MOTION VECTOR 28030.





...CORFIDI

