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822 

WWUS20 KWNS 160826

SEL7

SPC WW 160826

ALZ000-LAZ000-MSZ000-161600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 887

NWS STORM PREDICTION CENTER NORMAN OK

225 AM CST WED NOV 16 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN AND CENTRAL ALABAMA

       SOUTHEASTERN LOUISIANA

       EASTERN AND SOUTHERN MISSISSIPPI



EFFECTIVE THIS WEDNESDAY MORNING FROM 225 AM UNTIL 1000 AM CST.



TORNADOES...HAIL TO 0.5 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 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTHEAST OF MC COMB

MISSISSIPPI TO 40 MILES NORTH NORTHWEST OF BIRMINGHAM ALABAMA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).



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.



DISCUSSION...SHORT BANDS/SMALL CLUSTERS OF SHOWERS/TSTMS EXPECTED TO

PERSIST OVER WW...IN STRONG...SLIGHTLY CONFLUENT LOW LVL SWLY FLOW

BENEATH AND JUST DOWNSTREAM FROM EJECTING UPR IMPULSE.  SOME

STRENGTHENING OF THE LOW TO MID LVL WIND FIELD IS EXPECTED ACROSS AL

LATER THIS MORNING /WITH SPEEDS INCREASING TO AOA 50 KTS IN THE

850-700 MB LAYER/...ALONG WITH A MODEST INCREASE IN LOW LVL MOISTURE

AND POSSIBLY ASCENT.  GIVEN DEGREE OF LOW LVL SHEAR...POTENTIAL WILL

EXIST FOR INTERMITTENT LOW LVL MESOCYCLONES AND POSSIBLE TORNADOES.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

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

400. MEAN STORM MOTION VECTOR 22040.





...CORFIDI

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