SPC Severe Thunderstorm Watch 690

WW 690 SEVERE TSTM AZ 220100Z - 220900Z URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 690 NWS Storm Prediction Center Norman OK 600 PM MST Wed Oct 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and Northern Arizona * Effective this Wednesday night and Thursday morning from 600 PM until 200 AM MST. * Primary threats include... Isolated damaging wind gusts to 65 mph possible Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Isolated severe thunderstorms capable of a risk for large hail and severe gusts will be possible tonight across the Watch area. A tornado is also possible with the more intense supercells. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 25 miles west of Flagstaff AZ to 30 miles north northeast of Show Low AZ. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Per...