Overview

• National Weather Service issued life‑threatening flash flood warnings in parts of Arizona, with 1 to 1.5 inches of rain already reported in Pinal and Maricopa counties.
• Phoenix logged record rain Saturday at Sky Harbor, roads including US 60 near Miami and Loop 202 at Cooper flooded, a Sky Harbor ground stop and long delays were reported, and Tempe’s Oktoberfest was canceled.
• Utah faced concurrent Severe Thunderstorm, Flash Flood, and High Wind warnings, including two‑inch hail, 60 mph gusts, slot‑canyon flooding in Garfield and Kane counties, and rapid temperature drops behind a cold front.
• Southern Utah saw earlier debris flows and road closures in Pine Valley, Dammeron Valley, and Veyo, and local agencies deployed sandbags and equipment in flood‑prone and burn‑scar areas.
• Forecasts call for additional downpours and thunderstorms in Arizona into Monday under flood watches, while Utah transitions to cooler, showery conditions with snow levels near 6,000 feet before a gradual drying trend.