

252 

WWUS20 KWNS 010916

SEL2

SPC WW 010916

ALZ000-LAZ000-MSZ000-CWZ000-011600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 2

NWS STORM PREDICTION CENTER NORMAN OK

310 AM CST SAT JAN 1 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN AND NORTHERN ALABAMA

       SOUTHEASTERN LOUISIANA

       SOUTHERN AND EASTERN MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS SATURDAY MORNING FROM 310 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 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF GADSDEN

ALABAMA TO 5 MILES WEST SOUTHWEST OF NEW ORLEANS LOUISIANA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 1...



DISCUSSION...BROKEN BAND OF TSTMS EXPECTED TO PERSIST ALONG

SLOWLY-MOVING COLD FRONT OVER THE LWR MS VLY.  ADDITIONAL STORMS MAY

FORM LATER THIS MORNING ALONG PRE-FRONTAL CONFLUENCE AXIS IN SE

LA/SRN MS/WRN AL.

WHILE HEIGHT FALLS OVER WW WILL BE MINIMAL...UPR DIVERGENCE WILL

EXIST IN RIGHT ENTRANCE REGION OF STRONG UPR JET.  COUPLED WITH VERY

MOIST ENVIRONMENT AND PRESENCE OF AMPLE LOW LVL SHEAR/LOW LVL

CONFLUENCE...SETUP MAY CONTINUE TO POSE A RISK FOR ISOLD TORNADOES

IN SRN TWO THIRDS OF WATCH.  FARTHER N...STRONGER DEEP SHEAR AND THE

NEWD MOVEMENT OF EXISTING ROTATING STORMS MAY POSE A THREAT FOR

ISOLD TORNADOES AS FAR NE AS NE AL...DESPITE MORE LIMITED SFC-BASED

INSTABILITY.



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

450. MEAN STORM MOTION VECTOR 22040.





...CORFIDI

