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WWUS20 KWNS 042134

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SPC WW 042134

GAZ000-NCZ000-SCZ000-TNZ000-VAZ000-050500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 98

NWS STORM PREDICTION CENTER NORMAN OK

430 PM EST TUE MAR 4 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF NORTHEAST GEORGIA

       MUCH OF CENTRAL AND WESTERN NORTH CAROLINA

       PARTS OF NORTHERN AND WESTERN SOUTH CAROLINA

       PARTS OF EASTERN TENNESSEE

       PARTS OF CENTRAL VIRGINIA



EFFECTIVE THIS TUESDAY AFTERNOON FROM 430 PM UNTIL MIDNIGHT EST.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND

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

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 45 MILES NORTHEAST OF

RALEIGH NORTH CAROLINA TO 15 MILES SOUTH OF ASHEVILLE NORTH

CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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 96...WW 97...



DISCUSSION...POWERFUL UPPER TROUGH AND 100KT MID LEVEL WIND MAX

TRACKING ENEWD FROM TN VALLEY THIS EVENING.  MOIST AND MODESTLY

UNSTABLE AIRMASS HAS SPREAD NWD THRU THE WATCH AREA.  WITH VERY

STRONG SHEAR PROFILES IN PLACE COUPLED WITH APPROACH OF UPPER

TROUGH...INTENSE SQUALL LINE IS DEVELOPING AND WILL MOVE EWD ACROSS

WATCH AREA.  ADDITIONALLY ROTATING STORMS ARE POSSIBLE WELL AHEAD OF

SQUALL LINE THRU CENTRAL CAROLINAS TO SRN VA THIS EVENING.

TORNADOES POSSIBLE WITH BOTH SQUALL LINE AND THE AREA FURTHER E. IN

ADDITION DAMAGING WINDS EXPECTED TO BE INCREASING ASSOCIATED WITH

THE SQUALL LINE DURING THE EVENING.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24040.





...HALES

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