851
WWUS20 KWNS 122157
SEL7
SPC WW 122157
AZZ000-130400-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 487
NWS STORM PREDICTION CENTER NORMAN OK
400 PM MDT SUN JUL 12 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND SOUTH CENTRAL ARIZONA
* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 400 PM UNTIL
1000 PM MDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE
SUMMARY...STORMS CLUSTERS ARE FORMING OVER THE MOGOLLON RIM AND THE
MOUNTAINS IN SOUTHEAST ARIZONA, AND THE STORMS ARE EXPECTED TO
SPREAD WESTWARD THROUGH LATE EVENING. THE STORM ENVIRONMENT FAVORS
SEVERE OUTFLOW GUSTS OF 60-70 MPH AS THE PRIMARY THREAT AS STORMS
PROPAGATE INTO THE LOWER DESERTS, ESPECIALLY WHERE OUTFLOW MERGERS
OCCUR. OTHERWISE, THE STRONGEST INITIAL CELLS COULD ALSO PRODUCE
ISOLATED LARGE HAIL NEAR 1 INCH DIAMETER.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH OF PHOENIX
AZ TO 60 MILES SOUTH SOUTHWEST OF TUCSON AZ. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU7).
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 485...WW 486...
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
08020.
...THOMPSON
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