URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 689
NWS Storm Prediction Center Norman OK
135 PM MST Wed Oct 21 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Central and Southern Arizona

* Effective this Wednesday afternoon and evening from 135 PM
  until 900 PM MST.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...Thunderstorm coverage is expected to increase this
afternoon and evening across portions of central and southern
Arizona. Recent sounding from PHX sampled an unstable and strongly
sheared environment supportive of supercells. Primary hazards with
these storms are large hail and strong gusts. Isolated very large
hail (i.e. 2"+ in diameter) and a brief tornado could also occur.

The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 55 miles northwest of
Gila Bend AZ to 35 miles east of Safford AZ. 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...CONTINUE...WW 688...

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
21035.

...Mosier