

855 

WWUS20 KWNS 292354

SEL4

SPC WW 292354

AZZ000-300600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 424

NWS STORM PREDICTION CENTER NORMAN OK

455 PM MST FRI JUL 29 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTH-CENTRAL ARIZONA



* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 455 PM UNTIL

  1100 PM MST.



* PRIMARY THREATS INCLUDE...

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



SUMMARY...A BROKEN BUT INCREASINGLY CONCENTRATED ARC OF

THUNDERSTORMS IS EVIDENT MOVING WESTWARD ACROSS SOUTHERNMOST

ARIZONA...AND SOUTHWESTWARD OFF THE MOGOLLON RIM.  THIS ACTIVITY IS

EXHIBITING INCREASING POTENTIAL FOR ORGANIZATION INTO A

SEVERE-WIND-PRODUCING EVENT AS IT MOVES INTO A HOT...MOIST AND

FAVORABLY UNSTABLE ENVIRONMENT OVER THE WATCH AREA.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75

STATUTE MILES EITHER SIDE OF A LINE FROM 75 MILES WEST SOUTHWEST

OF TUCSON ARIZONA TO 35 MILES NORTHEAST OF PHOENIX ARIZONA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 422...WW 423...



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

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

VECTOR 08030.





...EDWARDS

