

104 

WWUS20 KWNS 170155

SEL8

SPC WW 170155

OKZ000-170800-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 178

NWS STORM PREDICTION CENTER NORMAN OK

855 PM CDT MON MAY 16 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WEST CENTRAL AND SOUTHWEST OKLAHOMA



* EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 855 PM

  UNTIL 300 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE



SUMMARY...MERGING CLUSTERS OF SUPERCELLS WILL CONTINUE TO GROW

UPSCALE INTO AN MCS THAT WILL MOVE EAST-SOUTHEASTWARD ACROSS WEST

CENTRAL AND SOUTHWEST OKLAHOMA THROUGH THE OVERNIGHT HOURS.

DAMAGING WINDS CAN BE EXPECTED WITH THE STRONGEST EMBEDDED

SUPERCELLS/BOWING SEGMENTS...AS WELL AS LARGE HAIL.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST OF

CLINTON OKLAHOMA TO 25 MILES SOUTHEAST OF CHICKASHA 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 176...WW 177...



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 29035.





...THOMPSON

