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748 

WWUS20 KWNS 210056

SEL6

SPC WW 210056

ALZ000-TNZ000-210900-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 16

NWS STORM PREDICTION CENTER NORMAN OK

650 PM CST THU FEB 20 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  NORTHERN AND CENTRAL ALABAMA

  MIDDLE TENNESSEE



* EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 650 PM

  UNTIL 300 AM CST.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES POSSIBLE

  SEVERAL DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  A FEW LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH NORTHEAST OF

NASHVILLE TENNESSEE TO 25 MILES WEST SOUTHWEST OF SELMA ALABAMA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 9...WW 11...WW 13...WW

14...WW 15...



DISCUSSION...WITH THE GLANCING INFLUENCE OF POTENT MIDWEST SHORTWAVE

TROUGH YET TO AFFECT REGION...AND CONTINUED LOW-LVL MOISTURE

INFLOW...SETUP APPEARS FAVORABLE FOR THE CONTINUED ENE MOVEMENT AND

POSSIBLE STRENGTHENING OF NNE-SSW SQLN NOW APPROACHING MIDDLE TN.

EMBEDDED LEWPS AND SUSTAINED STORMS/SUPERCELLS WILL BE CAPABLE OF

DMGG WIND AND POSSIBLY A TORNADO OR TWO SWD INTO NRN/WRN AL GIVEN

INTENSITY OF LOW TO MID-WIND FIELD /700 MB SPEEDS AOA 50 KTS/. ONE

OR TWO MORE ISOLD SVR STORMS ALSO MAY AFFECT SRN PARTS OF THE WW

AREA LATER TNGT AS CONVECTION CONTINUES TO FORM AND MOVE NEWD FROM

CONFLUENCE ZONE NOW STRADDLING THE MS-AL BORDER S OF MERIDIAN.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24050.





...CORFIDI

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