

943 

WWUS20 KWNS 101735

SEL7

SPC WW 101735

ALZ000-LAZ000-MSZ000-TNZ000-CWZ000-110100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 17

NWS STORM PREDICTION CENTER NORMAN OK

1135 AM CST THU JAN 10 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       MUCH OF WESTERN AND NORTHERN ALABAMA

       PARTS OF SOUTHEAST LOUISIANA

       PARTS OF EASTERN MISSISSIPPI

       MUCH OF MIDDLE TENNESSEE

       COASTAL WATERS



EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1135 AM UNTIL

700 PM CST.



...THIS IS A PARTICULARLY DANGEROUS SITUATION...



DESTRUCTIVE TORNADOES...LARGE HAIL TO 2 INCHES IN DIAMETER...

THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE

POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES WEST SOUTHWEST OF

BOOTHVILLE LOUISIANA TO 50 MILES NORTHEAST OF NASHVILLE

TENNESSEE.  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.



OTHER WATCH INFORMATION...CONTINUE...WW 16...



DISCUSSION...WARM SECTOR HAS CONTINUED TO DESTABILIZE AS SHEAR

PROFILES CONTINUE TO INTENSIFY ACROSS MUCH OF WATCH AREA.  DISCRETE

SUPERCELLS ARE DEVELOPING AHEAD OF THE MAIN AREA OF SEVERE OVER WRN

MS/TN.  AS 500MB TROUGH AND 100KT WIND MAX ROTATE TOWARD AREA THIS

AFTERNOON...TORNADIC SUPERCELLS ARE EXPECTED TO INCREASE IN NUMBER

AND DEVELOP EWD ACROSS AL AND NWD INTO MID TN.  THERE IS A THREAT OF

LONG LIVED SUPERCELLS INCLUDING STRONG TORNADOES.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24040.





...HALES

