

525 

WWUS20 KWNS 242319

SEL8

SPC WW 242319

INZ000-KYZ000-NCZ000-OHZ000-TNZ000-VAZ000-250700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 98

NWS STORM PREDICTION CENTER NORMAN OK

715 PM EDT SAT APR 24 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       FAR SOUTHEAST INDIANA

       CENTRAL AND EASTERN KENTUCKY

       FAR SOUTHWEST NORTH CAROLINA

       SOUTHWEST OHIO

       MIDDLE AND EASTERN TENNESSEE

       FAR SOUTHWESTERN VIRGINIA



EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 715 PM

UNTIL 300 AM EDT.



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

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE

MILES EAST AND WEST OF A LINE FROM 65 MILES NORTH NORTHWEST OF

HUNTINGTON WEST VIRGINIA TO 75 MILES WEST OF CHATTANOOGA

TENNESSEE.  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 94...WW 95...WW 96...WW

97...



DISCUSSION...CNTRL KY/MIDDLE TN QLCS EXPECTED TO CONTINUE ENEWD INTO

SOMEWHAT LESS UNSTABLE BUT SLOWLY DESTABILIZING DOWNSTREAM

ENVIRONMENT. EMBEDDED SUPERCELLS AND LOW LVL CIRCULATION CENTERS

WILL POSE A CONTINUED THREAT FOR TORNADOES...DMGG WIND...AND

MARGINALLY SVR HAIL GIVEN VERY STRONG LOW LVL SPEED/DIRECTIONAL

SHEAR.

FARTHER SE...NERN EXTENSION OF BKN BAND OF SUPERCELLS THAT CROSSED

MS EARLIER TODAY WILL ENCOUNTER RISING TERRAIN AND SLOWLY

MOISTENING/STRONGLY SHEARED ENVIRONMENT OVER EAST TN.  A FEW STORMS

IN THIS REGION COULD ALSO POSE EPISODIC RISKS FOR TORNADOES...DMGG

WIND...AND SVR HAIL.



AVIATION...TORNADOES AND 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

450. MEAN STORM MOTION VECTOR 24040.





...CORFIDI

