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185 

WWUS20 KWNS 300748

SEL4

SPC WW 300748

ALZ000-TNZ000-301600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 14

NWS STORM PREDICTION CENTER NORMAN OK

150 AM CST WED JAN 30 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHERN AND WEST-CENTRAL ALABAMA

       MIDDLE TENNESSEE



EFFECTIVE THIS WEDNESDAY MORNING FROM 150 AM UNTIL 1000 AM CST.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

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



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES WEST OF BIRMINGHAM

ALABAMA TO 45 MILES NORTH OF CROSSVILLE TENNESSEE.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU4).



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 12...WW 13...



DISCUSSION...AN EXTENSIVE QLCS WITH EMBEDDED SUPERCELLS IS EXPECTED

TO ADVANCE EWD ACROSS THE WATCH AREA THIS MORNING.  30/06Z JAN

SOUNDING IS LIKELY REPRESENTATIVE OF THE INFLOW AIR MASS TO THE

CONVECTIVE SYSTEM...FEATURING A RELATIVELY MOIST ENVIRONMENT WITH

MLCAPE OF AROUND 500 J/KG.  GIVEN THE STRONG FORCING FOR ASCENT AND

VERY FAVORABLE WIND PROFILES FOR UPDRAFT ROTATION...THE RISK FOR

TORNADOES AND DAMAGING WINDS WILL CONTINUE.



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

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

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.

MEAN STORM MOTION VECTOR 22045.





...MEAD

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