First published Oct 22, 2026, 11:40:15 PM UTC · Last updated Oct 23, 2026, 2:34:15 AM UTC

Floods

Flash Flood Warning for Graham County, Arizona

Reported by U.S. National Weather Service Alerts NWS, U.S. National Weather Service Alerts NWS, U.S. National Weather Service Alerts NWS

The National Weather Service in Tucson extended a warning for ongoing flash flooding in South Central Graham County, Arizona, through 8:00 PM MST. Flooding was reported in Stockton Wash, with people advised not to drive on flooded roads.

At a glance

Affected location: Graham County, Arizona

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Why it matters

Flash flooding was already occurring and the warning included immediate instructions to avoid flooded roads.

Location

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Update history

Oct 23, 2026, 1:56 AM UTC
The National Weather Service in Tucson extended a warning for ongoing flash flooding in South Central Graham County, Arizona, through 8:00 PM MST. Flooding was reported in Stockton Wash, with people advised not to drive on flooded roads.
U.S. National Weather Service Alerts NWS
Oct 23, 2026, 1:11 AM UTC
In Graham, Arizona, law enforcement reported heavy rain and flash flooding already occurring, with life-threatening flooding possible across creeks, streets, highways, and underpasses. The warning instructed people to avoid driving on flooded roads.
U.S. National Weather Service Alerts NWS

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 8/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

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Related developments reported in the last 30 days. These are not necessarily ongoing incidents.

Nearby · within 200 km
Severe Thunderstorm Warnings — TucsonOct 23, 2026, 1:43 AM UTC
3 related advisories are grouped here. Expand the group to review every affected area and source advisory.
Nearby · within 200 km
Flash Flood Warning issued October 22 at 5:50PM MST until October 22 at 8:00PM MST by NWS Tucson AZOct 23, 2026, 12:50 AM UTC
The National Weather Service in Tucson extended a flash flood warning for parts of Graham and Greenlee counties, Arizona, until 8:00 PM MST on October 22. Radar indicated heavy rain and ongoing or imminent life-threatening flash flooding; the warning advised people to turn around rather than drive through flooded roads.
Nearby · within 200 km
Severe Thunderstorm Warnings — FlagstaffOct 22, 2026, 11:28 PM UTC
28 related advisories are grouped here. Expand the group to review every affected area and source advisory.
Nearby · within 200 km
NWS Tucson warns of severe thunderstorm with large hail and damaging winds in Graham and Pinal CountiesOct 22, 2026, 10:06 PM UTC
A severe thunderstorm was reported southeast of Peridot, moving northeast at 50 mph, with tennis-ball-size hail and 60 mph wind gusts. People outdoors were instructed to shelter inside a sturdy building and stay away from windows.
Nearby · within 200 km
NWS Tucson issues severe thunderstorm warning for Graham, ArizonaOct 22, 2026, 10:03 PM UTC
The National Weather Service issued a severe thunderstorm warning for Graham, Arizona, from 3:03 to 3:30 p.m. MST on October 22, 2026. The alert reported 60 mph wind gusts and quarter-size hail and advised people to shelter indoors.
Nearby · within 200 km
Severe Thunderstorm Warnings — PhoenixOct 22, 2026, 8:58 PM UTC
7 related advisories are grouped here. Expand the group to review every affected area and source advisory.

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