

384 

WWUS20 KWNS 120312

SEL2

SPC WW 120312

ARZ000-OKZ000-120900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 172

NWS STORM PREDICTION CENTER NORMAN OK

1015 PM CDT WED MAY 11 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHWEST ARKANSAS

  PARTS OF CENTRAL AND EASTERN OKLAHOMA



* EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1015

  PM UNTIL 400 AM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



SUMMARY...THUNDERSTORMS ARE EXPECTED TO DEVELOP IN THE NEXT COUPLE

OF HOURS ALONG A SLOW-MOVING COLD FRONT FROM CENTRAL AND SOUTH

CENTRAL OKLAHOMA EAST-NORTHEASTWARD INTO NORTHWEST ARKANSAS.  THE

STORM ENVIRONMENT WILL SUPPORT A RISK FOR LARGE HAIL AND ISOLATED

STRONG/DAMAGING GUSTS FOR THE FIRST FEW HOURS AFTER STORM

DEVELOPMENT...OR THROUGH ABOUT 2-4 AM CDT.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH OF

CHICKASHA OKLAHOMA TO 25 MILES EAST OF FAYETTEVILLE ARKANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 170...WW 171...



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 27025.





...THOMPSON

