

200 

WWUS20 KWNS 290739

SEL8

SPC WW 290739

OKZ000-TXZ000-291500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 238

NWS STORM PREDICTION CENTER NORMAN OK

240 AM CDT WED MAY 29 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHWEST OKLAHOMA

  EASTERN TEXAS PANHANDLE



* EFFECTIVE THIS WEDNESDAY MORNING FROM 240 AM UNTIL 1000 AM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  SEVERAL LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 85 MILES WEST

SOUTHWEST OF GAGE OKLAHOMA TO 50 MILES EAST OF GAGE OKLAHOMA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



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...CONTINUE...WW 237...



DISCUSSION...A CLUSTER OF STRONG TO SEVERE THUNDERSTORMS IS ONGOING

IN THE EASTERN TEXAS PANHANDLE LOCATED NEAR THE AXIS OF A

STRENGTHENING LOW-LEVEL JET. THIS ALONG WITH MODERATE TO STRONG

INSTABILITY AND SUBSTANTIAL DEEP LAYER SHEAR WILL LIKELY CONTINUE TO

SUPPORT A SEVERE THREAT AS THE STORMS MOVE EAST NORTHEASTWARD INTO

NORTHWEST OKLAHOMA THIS MORNING. WIND DAMAGE...ISOLATED LARGE HAIL

AND A TORNADO THREAT WILL BE PROBABLE.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 25030.





...BROYLES

