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617 

WWUS20 KWNS 150222

SEL4

SPC WW 150222

OKZ000-TXZ000-150800-



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

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