

627 

WWUS20 KWNS 262044

SEL2

SPC WW 262044

COZ000-KSZ000-NMZ000-OKZ000-TXZ000-270300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 192

NWS STORM PREDICTION CENTER NORMAN OK

345 PM CDT THU APR 26 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHEAST COLORADO

       EXTREME SOUTHWEST KANSAS

       EXTREME NORTHEAST NEW MEXICO

       THE WESTERN OKLAHOMA PANHANDLE

       THE WESTERN TEXAS PANHANDLE AND SOUTH PLAINS



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 345 PM UNTIL

1000 PM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH

NORTHWEST OF LAMAR COLORADO TO 25 MILES WEST SOUTHWEST OF

PLAINVIEW TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 191...



DISCUSSION...HIGH-BASED THUNDERSTORM DEVELOPMENT IS EXPECTED IN THE

NEXT COUPLE OF HOURS ALONG A SHARPENING LEE TROUGH FROM NE NM INTO

SE CO...AND EWD INTO THE UPSLOPE FLOW REGIME ACROSS THE WRN TX

PANHANDLE.  INITIALLY LARGE TEMPERATURE-DEWPOINT SPREADS AND MODEST

LOW-LEVEL SHEAR SUGGEST THAT LARGE HAIL AND ISOLATED DAMAGING GUSTS

WILL BE THE MAIN THREATS FOR THE NEXT SEVERAL HOURS.  LOW-LEVEL

WINDS WILL RESPOND LATER THIS EVENING TO THE APPROACH OF A STRONG

SHORTWAVE TROUGH NEAR THE FOUR CORNERS...AND LOW-LEVEL MOISTURE WILL

SURGE NWWD.  NEAR AND AFTER SUNSET...THE RISK FOR A COUPLE OF

TORNADOES WILL BEGIN TO INCREASE.  THE TORNADO RISK WILL BE

REVISITED LATER THIS EVENING...WHEN A WATCH REPLACEMENT/UPGRADE

COULD BECOME NECESSARY.



AVIATION...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 26015.





...THOMPSON

