

596 

WWUS20 KWNS 170147

SEL1

SPC WW 170147

NCZ000-SCZ000-VAZ000-170900-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 741

NWS STORM PREDICTION CENTER NORMAN OK

850 PM EST TUE NOV 16 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL NORTH CAROLINA

       CENTRAL SOUTH CAROLINA

       CENTRAL VIRGINIA



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 850 PM

UNTIL 400 AM EST.



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

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES EAST SOUTHEAST OF

COLUMBIA SOUTH CAROLINA TO 5 MILES NORTHWEST OF CHARLOTTESVILLE

VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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.



DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING ALONG/AHEAD OF

SURFACE COLD FRONT OVER WESTERN VA/NC/SC.  THESE STORMS WILL TRACK

NORTHEASTWARD ACROSS THE WATCH AREA THROUGH MUCH OF THE NIGHT AS A

STRONG UPPER TROUGH ROTATES INTO REGION.  VERY STRONG WIND FIELDS

WILL OFFSET WEAK INSTABILITY FOR A RISK OF A FEW SEVERE STORMS.

DAMAGING WINDS ARE THE PRIMARY THREAT.  HOWEVER...SUFFICIENT LOW

LEVEL VERTICAL SHEAR IS PRESENT FOR THE POTENTIAL FOR ISOLATED

TORNADOES AS WELL.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

350. MEAN STORM MOTION VECTOR 24040.





...HART

