SPC Severe Thunderstorm Watch 429

WW 429 SEVERE TSTM NC CW 252135Z - 260500Z
URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 429 NWS STORM PREDICTION CENTER NORMAN OK 535 PM EDT MON JUN 25 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF EASTERN NORTH CAROLINA COASTAL WATERS EFFECTIVE THIS MONDAY AFTERNOON AND TUESDAY MORNING FROM 535 PM UNTIL 100 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 NORTH AND SOUTH OF A LINE FROM 25 MILES WEST OF ROCKY MOUNT NORTH CAROLINA TO 50 MILES EAST SOUTHEAST OF ELIZABETH CITY NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9). 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 426...WW 427...WW 428... DISCUSSION...PRE-FRONTAL BAND OF TSTMS ONGOING OVER S-CNTRL/SERN VA IS EXPECTED TO SPREAD SEWD ACROSS THE WATCH AREA THIS AFTERNOON/EVENING AHEAD OF 50 KT MIDLEVEL JET STREAK AND ASSOCIATED...AMPLIFYING UPPER TROUGH. THE COMBINATION OF A MODERATELY UNSTABLE WARM SECTOR AND STRENGTHENING VERTICAL SHEAR WILL CONTINUE TO PROMOTE BOWING LINE SEGMENTS CAPABLE OF DAMAGING WINDS AND SOME HAIL. 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 30030. ...MEAD Read more

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