

527 

WWUS20 KWNS 271309

SEL0

SPC WW 271309

ALZ000-MSZ000-271900-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 230

NWS STORM PREDICTION CENTER NORMAN OK

810 AM CDT WED APR 27 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHERN ALABAMA

       NORTHERN MISSISSIPPI



EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 810 AM UNTIL

200 PM CDT.



TORNADOES...HAIL TO 2 INCHES 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 NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTHWEST OF OXFORD

MISSISSIPPI TO 30 MILES NORTH NORTHEAST OF GADSDEN ALABAMA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 226...WW 227...WW

228...WW 229...



DISCUSSION...STORMS DEVELOPING ACROSS NRN MS THROUGH NRN AL ARE

EMBEDDED WITHIN VERY STRONG VERTICAL SHEAR PROFILES WITH LARGE

HODOGRAPHS. AS THE ATMOSPHERE DESTABILIZES...POTENTIAL WILL EXIST

FOR TORNADOES...DAMAGING WIND AND LARGE HAIL.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24035.





...DIAL

