SEL6
SPC WW 110540
SCZ000-CWZ000-110900-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 276
NWS STORM PREDICTION CENTER NORMAN OK
140 AM EDT WED MAY 11 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EASTERN SOUTH CAROLINA
COASTAL WATERS
EFFECTIVE THIS WEDNESDAY MORNING FROM 140 AM UNTIL 500 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 35
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH
NORTHEAST OF FLORENCE SOUTH CAROLINA TO 55 MILES SOUTH SOUTHWEST
OF MYRTLE BEACH SOUTH CAROLINA. FOR A COMPLETE DEPICTION OF THE
WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
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 273...WW 274...WW 275...
DISCUSSION...SMALL BOWING MCS IS MOVING SEWD ALONG LOW-LEVEL
BAROCLINIC ZONE AT 45-50 KT. GIVEN A MOIST AND MODERATELY UNSTABLE
AIR MASS IN PLACE DOWNSTREAM ACROSS WW AREA...EXPECT SYSTEM TO
CONTINUE TOWARD THE COAST. WHILE DAMAGING WINDS WILL BE THE PRIMARY
HAZARD...SOME SEVERE HAIL WILL ALSO BE POSSIBLE.
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 33045.
...MEAD
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