

314 

WWUS20 KWNS 142048

SEL2

SPC WW 142048

COZ000-KSZ000-OKZ000-TXZ000-150400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 392

NWS STORM PREDICTION CENTER NORMAN OK

350 PM CDT THU JUN 14 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       FAR SOUTHEAST COLORADO

       SOUTHWEST KANSAS

       OKLAHOMA PANHANDLE

       WESTERN TEXAS INCLUDING THE PANHANDLE



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 350 PM UNTIL

1100 PM CDT.



HAIL TO 2.5 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 80

STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH

NORTHWEST OF GARDEN CITY KANSAS TO 50 MILES SOUTH SOUTHEAST OF

LUBBOCK 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 389...WW 390...WW 391...



DISCUSSION...TSTMS DEVELOPING WITHIN THE HOT DEEPLY-MIXED BOUNDARY

LAYER INVOF DRYLINE ARE EXPECTED TO MOVE/DEVELOP EWD INTO A

PROGRESSIVELY MORE MOIST AND UNSTABLE ENVIRONMENT WHERE MLCAPE HAS

INCREASED TO 2000-4500 J/KG.  THIS INSTABILITY COINCIDES WITH 25-35

KT OF DEEP...WNWLY SHEAR WHICH WILL PROMOTE SUPERCELLS AND ORGANIZED

MULTICELL CLUSTERS CAPABLE OF VERY LARGE HAIL AND DAMAGING WIND

GUSTS.



AVIATION...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 550. MEAN STORM

MOTION VECTOR 27020.





...MEAD

