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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 274

NWS STORM PREDICTION CENTER NORMAN OK

1045 PM CDT MON JUN 3 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WESTERN OKLAHOMA

  EASTERN TEXAS PANHANDLE



* EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1045 PM

  UNTIL 400 AM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW SIGNIFICANT DAMAGING WIND GUSTS TO 80 MPH POSSIBLE

  A FEW VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTHWEST OF

GAGE OKLAHOMA TO 30 MILES SOUTHWEST OF FORT SILL OKLAHOMA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU4).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 273. WATCH NUMBER 273 WILL NOT

BE IN EFFECT AFTER 1045 PM CDT.



DISCUSSION...THE RISK FOR SEVERE WIND GUSTS WILL PERSIST AT LEAST

ANOTHER COUPLE OF HOURS WITH THE WEAKENING CONVECTIVE SYSTEM

PROPAGATING SOUTHWARD ACROSS WESTERN OKLAHOMA.  STRONGEST STORMS

PROBABLY WILL REMAIN CONFINED TO THE WESTERN FLANK OF THE

SYSTEM...NEAR THE OKLAHOMA/TEXAS PANHANDLE BORDER AREA.  AIDED BY

WARM ADVECTION ASSOCIATED WITH A SOUTH SOUTHWESTERLY 850 MB

JET...STRENGTHENING UP TO 40-50 KT...SOME RE-INTESIFICATION OF

CONVECTION ACROSS THE EASTERN TEXAS PANHANDLE INTO WESTERN OKLAHOMA

MAY NOT BE OUT OF THE QUESTION OVERNIGHT...AS AN UPPER IMPULSE

GRADUALLY PROGRESSES EAST OF THE SOUTHERN ROCKIES.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 31030.





...KERR

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