SPC Severe Thunderstorm Watch 394

WW 394 SEVERE TSTM OK TX 150220Z – 150800Z


URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 394
NWS STORM PREDICTION CENTER NORMAN OK
920 PM CDT THU JUN 14 2012

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

       WESTERN OKLAHOMA
       NORTHWEST TEXAS

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 920 PM
UNTIL 300 AM 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 55
STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHWEST OF
ALVA OKLAHOMA TO 20 MILES EAST SOUTHEAST OF ABILENE TEXAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).

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...WW 392...WW 393...

DISCUSSION...TWO LINES OF STRONG/SEVERE STORMS ARE EXPECTED TO MOVE
SEWD/EWD INTO PARTS OF WRN OK AND NWRN TX.  NRN LINE FROM SWRN KS
INTO THE OK PANHANDLE IS MOVING SEWD AND WILL LIKELY MAINTAIN THREAT
FOR SEVERE WIND GUSTS NEXT SEVERAL HOURS.  SRN LINE FROM THE ERN TX
PANHANDLE INTO THE SOUTH PLAINS IS MOVING ESEWD WITH CONTINUING
THREAT FOR HAIL AND DAMAGING WIND GUSTS.  AIR MASS AHEAD OF THE
STORMS IS VERY UNSTABLE WITH MLCAPE OF 2500-3500 J/KG...AND ACTIVITY
MAY BE SUSTAINED INTO THE OVERNIGHT HOURS AS A SOUTHERLY LOW LEVEL
JET INTENSIFIES OVER THE PLAINS.

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 27020.


...WEISS

via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0394.html