

236 

WWUS20 KWNS 271957

SEL9

SPC WW 271957

TXZ000-280100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 99

NWS STORM PREDICTION CENTER NORMAN OK

300 PM CDT SUN APR 27 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTH CENTRAL TEXAS



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 300 PM UNTIL

  800 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES WEST

NORTHWEST OF PARIS TEXAS TO 15 MILES EAST OF CORSICANA TEXAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 94. WATCH NUMBER 94 WILL NOT BE

IN EFFECT AFTER 300 PM CDT. CONTINUE...WW 95...WW 96...WW 97...WW

98...



DISCUSSION...STORMS ARE EXPECTED TO CONTINUE DEVELOPING ALONG A

SLOWLY EWD ADVANCING PACIFIC FRONT/DRYLINE WITHIN EXIT REGION OF AN

APPROACHING UPPER JET. THE ATMOSPHERE HAS BECOME MODERATELY UNSTABLE

AND 0-6 KM SHEAR UP TO 50 KT WILL SUPPORT SUPERCELLS WITH LARGE HAIL

AND DAMAGING WIND. AN ISOLATED TORNADO ALSO CANNOT BE RULED OUT.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 24035.





...DIAL

