

377 

WWUS20 KWNS 232327

SEL6

SPC WW 232327

ARZ000-LAZ000-TXZ000-240500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 436

NWS STORM PREDICTION CENTER NORMAN OK

630 PM CDT WED JUL 23 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EXTREME SOUTH-CENTRAL ARKANSAS

  NORTHERN LOUISIANA

  EAST TEXAS



* EFFECTIVE THIS WEDNESDAY NIGHT FROM 630 PM UNTIL MIDNIGHT CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES SOUTHWEST

OF CORSICANA TEXAS TO 75 MILES NORTHEAST OF NATCHITOCHES

LOUISIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 431...WW 432...WW

434...WW 435...



DISCUSSION...MCS WITH WELL-DEVELOPED COLD POOL...3-6 MB PER 2-HOUR

TRAILING PRESSURE RISES...AND FOREGOING MOIST AIR MASS...MAY PERSIST

WITH DAMAGING-GUST THREAT S OF WW 434 BEFORE WEAKENING IN

NOCTURNALLY COOLING AIR MASS.  REF SPC MESOSCALE DISCUSSION 1449 FOR

ADDITIONAL DETAILS.



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

TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 36030.





...EDWARDS

