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928 

WWUS20 KWNS 280737

SEL9

SPC WW 280737

ARZ000-INZ000-KYZ000-MOZ000-TNZ000-281500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 29

NWS STORM PREDICTION CENTER NORMAN OK

135 AM CST MON FEB 28 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHEAST ARKANSAS

       FAR SOUTHERN INDIANA

       WESTERN AND CENTRAL KENTUCKY

       MISSOURI BOOTHEEL

       WESTERN AND PARTS OF MIDDLE TENNESSEE



EFFECTIVE THIS MONDAY MORNING FROM 135 AM UNTIL 900 AM CST.



TORNADOES...HAIL TO 1 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 90 STATUTE

MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHEAST OF

LOUISVILLE KENTUCKY TO 15 MILES WEST OF MEMPHIS TENNESSEE.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU9).



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 24...WW 25...WW 26...WW

27...WW 28...



DISCUSSION...A MULTI-MODAL SEVERE WEATHER EPISODE IS EXPECTED TO

SPREAD EWD ACROSS THE WW AREA...INCLUDING SUPERCELLS AND BOWING

STRUCTURES.  A VERY STRONG /50-70+ KT/ SWLY LLJ IS SERVING TO

ENHANCE THE FLUX OF A WARM AND HUMID AIR MASS NWD THROUGH THE

LOWER/MID MS VALLEY.  WHEN COUPLED WITH THE EXTREME VERTICAL

SHEAR...EXPECT THE THREAT FOR TORNADOES AND CORRIDORS OF DAMAGING

WINDS TO PERSIST THROUGH THE EARLY MORNING HOURS.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.

MEAN STORM MOTION VECTOR 26045.





...MEAD

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