

975 

WWUS20 KWNS 200108

SEL3

SPC WW 200108

LAZ000-CWZ000-200700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 183

NWS STORM PREDICTION CENTER NORMAN OK

810 PM CDT THU MAY 19 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTH-CENTRAL AND SOUTHEASTERN LOUISIANA

  COASTAL WATERS



* EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 810 PM

  UNTIL 200 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...INCREASINGLY WELL-ORGANIZED CONVECTIVE SYSTEM...WITH

MULTIPLE BOW ECHOES OF DIFFERENT SCALES...WILL POSE A PRIMARY RISK

OF WIND DAMAGE AND ALSO THE POTENTIAL FOR A BRIEF TORNADO OR TWO AS

IT SWEEPS EASTWARD ACROSS THE WATCH AREA.  SEE SPC MESOSCALE

DISCUSSION 656 FOR INITIAL METEOROLOGICAL REASONING.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

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

LAFAYETTE LOUISIANA TO 5 MILES EAST SOUTHEAST OF BOOTHVILLE

LOUISIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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.



&&



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS.

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

VECTOR 27035.





...EDWARDS

