

262 

WWUS20 KWNS 282116

SEL4

SPC WW 282116

TXZ000-290400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 14

NWS STORM PREDICTION CENTER NORMAN OK

315 PM CST THU JAN 28 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTH CENTRAL TEXAS



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 315 PM UNTIL

1000 PM CST.



TORNADOES...HAIL TO 2.5 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 EITHER SIDE OF A LINE FROM 80 MILES EAST NORTHEAST OF

JUNCTION TEXAS TO 15 MILES WEST OF DEL RIO TEXAS.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU4).



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 13...



DISCUSSION...ISOLATED THUNDERSTORMS ARE DEVELOPING ALONG A SURFACE

BOUNDARY EXTENDING FROM EAST OF SJT TO WEST OF DRT.  OTHER STORMS

ARE EXPECTED TO FORM OVER THE HIGHER TERRAIN OF NORTHERN MEXICO AND

TRACK INTO WATCH AREA DURING THE NEXT FEW HOURS.  RATHER STEEP MID

LEVEL LAPSE RATES AND FAVORABLE VERTICAL SHEAR PROFILES WILL PROMOTE

A RISK OF SUPERCELLS CAPABLE OF VERY LARGE HAIL AND DAMAGING

WINDS...ALONG WITH THE POTENTIAL FOR ISOLATED TORNADOES.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24035.





...HART

