

628 

WWUS20 KWNS 241821

SEL6

SPC WW 241821

ALZ000-ILZ000-INZ000-KYZ000-TNZ000-250200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 96

NWS STORM PREDICTION CENTER NORMAN OK

120 PM CDT SAT APR 24 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       MUCH OF ALABAMA

       PARTS OF SOUTHEAST ILLINOIS

       PARTS OF INDIANA

       LARGE PART OF WESTERN AND CENTRAL KENTUCKY

       MIDDLE TENNESSEE



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 120 PM UNTIL

900 PM CDT.



...THIS IS A PARTICULARLY DANGEROUS SITUATION...



DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 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 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF

MONTGOMERY ALABAMA TO 40 MILES NORTHEAST OF EVANSVILLE INDIANA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 93. WATCH NUMBER 93 WILL NOT BE IN EFFECT AFTER 120

PM CDT. CONTINUE...WW 94...WW 95...



DISCUSSION...SEVERE THUNDERSTORMS CONTINUE TO INCREASE IN BOTH

NUMBER AND INTENSITY AHEAD OF THE RAPIDLY DEEPENING LOW AND UPPER

TROUGH MOVING TOWARD THE MID MISSISSIPPI VALLEY. VERY STRONG DEEP

LAYER SHEAR COUPLED WITH VERY MOIST/UNSTABLE AIR MASS CONTINUES TO

SUPPORT BOTH TORNADIC SUPERCELLS  AND VERY DAMAGING WINDS.  THREAT

WILL RAPIDLY SPREAD NORTH AND EAST ACROSS THE WATCH THRU THE

AFTERNOON. THE RISK FOR LARGE LONG TRACK TORNADOES WILL BE A THREAT

AS WELL.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 24045.





...HALES

