SPC Severe Thunderstorm Watch 392

WW 392 SEVERE TSTM CO KS OK TX 142050Z – 150400Z


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

via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0392.html