SPC Severe Thunderstorm Watch 691
WW 691 SEVERE TSTM AZ 220900Z - 221700Z



URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 691
NWS Storm Prediction Center Norman OK
200 AM MST Thu Oct 22 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Northern and Central Arizona

* Effective this Thursday morning from 200 AM until 1000 AM MST.

* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Isolated damaging wind gusts to 65 mph possible
A tornado or two possible

SUMMARY...Supercells should continue to pose some threat for large
hail generally up to 1.0-1.75 inches in diameter this morning, with
2+ inches possible on an isolated basis. The threat for a tornado or
two and occasional severe/damaging winds will also persist with any
supercell that can remain surface based.

The severe thunderstorm watch area is approximately along and 85
statute miles east and west of a line from 95 miles northeast of
Grand Canyon AZ to 75 miles southeast of Prescott AZ. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).

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 690...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 55 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
22035.

...Gleason


Read more
https://www.spc.noaa.gov/products/watch/ww0691.html