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WWUS20 KWNS 310457

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 27

NWS STORM PREDICTION CENTER NORMAN OK

1155 PM EST WED JAN 30 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       THE LOWER EASTERN SHORE OF MARYLAND

       EASTERN NORTH CAROLINA

       SOUTHEASTERN VIRGINIA

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1155 PM

UNTIL 500 AM EST.



TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES EAST NORTHEAST OF

SALISBURY MARYLAND TO 25 MILES SOUTHEAST OF JACKSONVILLE NORTH

CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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...CONTINUE...WW 23...WW 24...WW 25...WW

26...



DISCUSSION...LOW-TOPPED...PRE-FRONTAL SQLN NOW EXTENDING FROM W OF

RICHMOND VA TO EAST OF FLORENCE SC EXPECTED TO CONTINUE ENEWD AND

OFF THE NC/VA/MD CST EARLY THU. SEASONABLY WARM/MOIST...VERY

STRONGLY-SHEARED LOW-LVL ENVIRONMENT...AND TIGHTENING OF SQLN

CIRCULATION ASSOCIATED WITH CONTINUED NEWD EJECTION OF TN VLY UPR

TROUGH...WILL BE COUNTERED BY CONTINUING PRESENCE OF RELATIVELY WARM

TEMPERATURES IN THE 700-500 MB LAYER. WHILE THIS WARM LAYER WILL

TEMPER UPDRAFT STRENGTH...INTENSITY OF LOW-LVL SHEAR AND PRESENCE

EXISTING BROKEN LINE SEGMENTS SUGGEST A CONDITIONAL RISK FOR A

TORNADO OR TWO...IN ADDITION TO DMGG WIND GUSTS...UNTIL THE

CONVECTIVE BAND CLEARS THE CST.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

300. MEAN STORM MOTION VECTOR 23060.





...CORFIDI

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