A passing shower over the Lake Powell area led to strong wind gusts that caused damage to a marina.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FGZ wrote it up.
A passing shower over the Lake Powell area led to strong wind gusts that caused damage to a marina.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Flagstaff, AZ wrote its last area forecast discussion before the first event at May 28, 4:50 PM MST, 10 minutes earlier.
Area Forecast Discussion National Weather Service Flagstaff AZ 450 PM MST Wed May 28 2025 .SYNOPSIS...Warm and dry conditions expected over the next couple days. A cutoff Low approaches the area from the south this weekend, bringing a better than average chance of precipitation starting as soon as late Saturday afternoon and lasting into Monday afternoon. && .DISCUSSION...Negatively tilted ridge running northwest from Texas into Nevada will impact the area over the next two days. This will bring us dry weather as well as temperatures 5 to 10 degrees above end of May averages. At the same time an abnormally strong cutoff Low will begin to set up off the southern California coast and sit there over the same couple days. Starting on Saturday this cutoff Low will slowly advance and begin to pull up some subtropical moisture from the south. By late Saturday afternoon or evening some POPs will start moving into the southern part of our CWA, staying south of the I-40 corridor Saturday night, with POPs becoming widespread across the entire CWA on Sunday as the Low begins to open up and track to the northeast. POPS remain over the area through early Monday afternoon but will decrease from southwest to northeast as the Low continues to move out of the area. Temperatures will also take a dip to about 5 to 10 degrees below early June averages. Ensembles have been in pretty high agreement of this scenario so confidence is higher then it usually is on an event this far out. Current QPF estimates from Saturday night through Monday evening are in the 0.25-0.50" range, not bad for early June. Temperatures will remain a bit below average through the middle of next week due to another trough moving in after the first one leaves. However this one will be farther to the north so its not expected to be able to tap the subtropical moisture the first one could. This trough will bring the jet stream further south and that will elevate the winds higher then they've been in the last few days. Will have to keep an eye on this to see if it could present any fire weather concerns. By Thursday this trough will move east and a zonal pattern will set up with temperatures warming back to early June averages. && .AVIATION...Thursday 29/00Z through Friday 30/00Z...Expect VFR conditions. South to southwest winds 10-15 kts through around 02Z, then diminishing overnight. Isolated -SHRA/VIRGA through 02Z north of a KGCN-KRQE line, with localized gusty/erratic outflow winds to 30 kts. Most areas will have south through southwest winds 5-15 kts redeveloping after 17Z-20Z Thursday. OUTLOOK...Friday 30/00Z through Sunday 01/00Z...VFR conditions. Winds variable at speeds generally under 15 kts. Isolated -SHRA Saturday afternoon, with localized gusty/erratic outflow winds to 30 kts. && .FIRE WEATHER...Thursday and Friday...Look for dry conditions on Thursday followed by a slight chance of virga/sprinkles over the White Mountains area on Friday. Daytime south to southwest winds at 5 to 15 mph are forecast for Thursday becoming variable on Friday. Expect minimum relative humidity generally 10 percent or lower. Saturday through Monday...A chance of rain showers developing on Saturday (15-30%) then increasing from Sunday into Monday (40-60%). Thunderstorms possible over the White Mountains area starting Saturday, spreading area wide Sunday. Minimum relative humidity 10- 20% on Saturday increasing to 20-40% on Sunday and Monday. Daytime winds will generally be light and variable on Saturday, becoming southwesterly on Sunday at 5 to 15 mph, then increasing to 10 to 20 mph with gusts to 30 mph on Monday. && .FGZ WATCHES/WARNINGS/ADVISORIES...None. && PUBLIC...Bernhart AVIATION...JJ FIRE WEATHER...McCollum For Northern Arizona weather information visit weather.gov/flagstaff
The national radar mosaic for the moment the first event began.
1 strong wind. Local standard time, as filed.
Strong winds from passing showers caused significant damage to the Antelope Point Marina on Lake Powell. The wind blew a transformer and caused damage to Dock 3.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2025Every state in 2025This day in weather historyWarnings in Arizona, May 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1266430.