

560 

WWUS20 KWNS 300947

SEL6

SPC WW 300947

MSZ000-301400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 16

NWS STORM PREDICTION CENTER NORMAN OK

345 AM CST WED JAN 30 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI



EFFECTIVE THIS WEDNESDAY MORNING FROM 345 AM UNTIL 800 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 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 10 MILES EAST OF COLUMBUS

MISSISSIPPI TO 55 MILES SOUTH SOUTHEAST OF JACKSON MISSISSIPPI.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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...WW 14...WW

15...



DISCUSSION...DESPITE WEAK INSTABILITY...STRONG DEEP LAYER AND LOW

LEVEL SHEAR WILL CONTINUE TO PROMOTE AN ENVIRONMENT CONDUCIVE FOR

STRONG TO SEVERE STORMS...WITH LINE/BOWING SEGMENTS THE PRIMARY

STORM MODE AS ACTIVITY ADVANCES EWD ACROSS CENTRAL AND SRN MS.

DAMAGING WINDS WILL BE THE PRIMARY THREAT.  HOWEVER...GIVEN THE

STRENGTH OF THE LOW LEVEL SHEAR PER WSR-88D VWP DATA IN CENTRAL MS

WITH SFC-1 KM SHEAR AROUND 40 KT AND 0-1 KM SRH NEAR 250

M2/S2...TORNADOES REMAIN A LIKELIHOOD.



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 24050.





...PETERS/MEAD

