On the morning of 24 September 2026, monsoon thunderstorms across the Phoenix Valley triggered an FAA ground stop for departures headed to Sky Harbor (PHX). ABC15 cited an advisory posted around 6:45 a.m. local time holding traffic into the airport for thunderstorms, with an initial window toward 8:00 a.m. and a chance of extension. The airport site showed about three dozen delays that morning; not all were necessarily weather-related. This is a new storm day after the mid-September Phoenix stops already covered.
What travellers saw
Valley convective cells also brought local power outages reported alongside the aviation hold. When PHX is gated for weather, bank turns and desert connections compress quickly once the stop lifts into residual GDP-style metering.
If the schedule is critical
If you cannot wait for the cells to clear, a private jet or empty leg into an alternate Arizona field may be workable once the airspace reopens. Rahizi qualifies the brief and returns partner options.
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Facts from FAA advisories cited by ABC15 and KTAR coverage on 24 September 2026. Always verify with your carrier.