

077 

WWUS20 KWNS 270104

SEL6

SPC WW 270104

TXZ000-270800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 196

NWS STORM PREDICTION CENTER NORMAN OK

805 PM CDT SUN APR 26 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST TEXAS



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 805 PM UNTIL

300 AM CDT.



TORNADOES...HAIL TO 3 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 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 90 MILES SOUTHWEST OF JUNCTION

TEXAS TO 35 MILES NORTH NORTHWEST OF ABILENE TEXAS.  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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 193. WATCH NUMBER 193 WILL NOT BE IN EFFECT AFTER

805 PM CDT. CONTINUE...WW 194...WW 195...



DISCUSSION...LONG-LIVED SUPERCELLS ONGOING AT 01Z NEAR I-10 IN

SUTTON COUNTY WILL LIKELY CONTINUE ESEWD FEEDING ON MODERATE

INSTABILITY TOWARDS THE TX HILL COUNTRY THROUGH THE LATE EVENING

BEFORE CAPPING FINALLY WEAKENS THEM.  IN ADDITION...RETREATING DRY

LINE WILL MAINTAIN INFLUX OF MOIST/UNSTABLE AIR INTO THE WEST TX

PLAINS/SWRN TX AHEAD OF UPPER TROUGH STILL APPROACHING THE REGION.

THIS SUGGESTS POTENTIAL FOR ADDITIONAL SEVERE THUNDERSTORM

DEVELOPMENT LATER THIS EVENING/OVERNIGHT ACROSS REMAINDER OF WW

WHERE SLY LLJ REMAINS IN PLACE.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 27025.





...EVANS

