

865 

WWUS20 KWNS 300330

SEL5

SPC WW 300330

OKZ000-TXZ000-300800-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 65

NWS STORM PREDICTION CENTER NORMAN OK

1030 PM CDT FRI MAR 29 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHERN OKLAHOMA

       NORTH-CENTRAL TEXAS



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1030 PM

UNTIL 300 AM CDT.



HAIL TO 1.5 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 35

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH

SOUTHWEST OF WICHITA FALLS TEXAS TO 30 MILES EAST OF DURANT

OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 64...



DISCUSSION...PRIMARY SEVERE THREAT WILL LIKELY BE ASSOCIATED WITH A

SMALL BUT WELL-ORGANIZED/ACCELERATING MCS ACROSS EXTREME SOUTHERN OK

AND NORTH-CENTRAL TX. ALTHOUGH BOUNDARY LAYER CINH WILL NOCTURNALLY

INCREASE...SUSTENANCE OF THE MCS WILL BE AIDED BY A MODEST LOW LEVEL

JET /30 KT PER FORT WORTH WSR-88D VWP/ AND MOIST/UNSTABLE INFLOW

ABOVE THE SURFACE. BOUTS OF DAMAGING WINDS/SEVERE HAIL WILL REMAIN A

CONCERN INTO THE OVERNIGHT.



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 450. MEAN STORM

MOTION VECTOR 27040.





...GUYER

