Alert archive / Arizona / Flash Flood Warnings / 2025

Flash Flood Warnings in Arizona, September 2025

109 flash flood warnings in September 2025. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.

Flash Flood Warnings by county

Each county as a circle sized by its count in September 2025. Tap one for its archive.

Flash Flood Warnings: 109
Busiest day: September 4, 202516 flash flood warnings

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Sep 1, 5:47 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 2, 3:33 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	2 hr
Sep 3, 1:46 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 3, 2:01 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Navajo	3 hr
Sep 3, 3:48 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Gila	3 hr
Sep 3, 3:49 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa	2 hr
Sep 3, 4:06 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 3, 4:26 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 3, 5:29 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Gila	3 hr
Sep 3, 5:36 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 3, 6:33 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Sep 3, 8:54 PM MST	Flash Flood Warning	PSR	Maricopa	111 min
Sep 3, 9:18 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	3 hr
Sep 4, 12:09 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino	6 hr
Sep 4, 12:40 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino	3 hr
Sep 4, 1:24 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino	3 hr
Sep 4, 1:44 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	3 hr
Sep 4, 1:56 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 4, 2:18 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	3 hr
Sep 4, 2:20 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima, Pinal	3 hr
Sep 4, 2:31 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz	3 hr
Sep 4, 2:36 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	3 hr
Sep 4, 3:15 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 4, 4:26 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Sep 4, 5:14 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino	3 hr
Sep 4, 5:59 PM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	4 hr
Sep 4, 6:14 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 4, 7:45 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	4 hr
Sep 4, 8:40 PM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	4 hr
Sep 5, 2:39 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 5, 3:41 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 5, 4:36 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 5, 5:06 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 5, 5:15 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 5, 6:23 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 6, 1:30 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 6, 2:34 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 6, 4:06 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 6, 3:46 PM MST	Flash Flood Warning Considerable damage threat	TWC	Santa Cruz	3 hr
Sep 6, 5:29 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima, Santa Cruz	3 hr
Sep 6, 7:06 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Sep 7, 3:56 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	111 min
Sep 11, 2:42 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	2 hr
Sep 11, 5:11 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Sep 15, 12:04 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Sep 16, 4:36 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	114 min
Sep 16, 6:00 PM MST	Flash Flood Warning	TWC	Pima	2 hr
Sep 17, 3:01 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Sep 17, 4:41 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	2 hr
Sep 17, 5:40 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	2 hr
Sep 18, 12:18 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	7 hr
Sep 18, 12:36 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz	7 hr
Sep 18, 1:20 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz	6 hr
Sep 18, 2:29 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila	3 hr
Sep 18, 2:58 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	3 hr
Sep 18, 3:20 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa	3 hr
Sep 18, 4:53 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Gila, Yavapai	6 hr
Sep 18, 5:15 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila	3 hr
Sep 18, 5:34 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Sep 19, 1:33 AM MST	Flash Flood Warning Considerable damage threat	FGZ	Gila	3 hr
Sep 19, 4:11 AM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 19, 1:18 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 19, 2:43 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	2 hr
Sep 21, 2:57 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Sep 21, 4:00 PM MST	Flash Flood Warning Considerable damage threat	TWC	Santa Cruz	2 hr
Sep 25, 1:00 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Sep 25, 2:24 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa, Pinal	4 hr
Sep 25, 2:40 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pinal	3 hr
Sep 25, 2:51 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Sep 26, 10:22 AM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	6 hr
Sep 26, 11:25 AM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	6 hr
Sep 26, 11:57 AM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	6 hr
Sep 26, 12:14 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	3 hr
Sep 26, 12:53 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	5 hr
Sep 26, 1:02 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 26, 1:27 PM MST	Flash Flood Warning Considerable damage threat	TWC	Santa Cruz	2 hr
Sep 26, 1:43 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	2 hr
Sep 26, 2:16 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	119 min
Sep 26, 2:45 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 26, 2:54 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	3 hr
Sep 26, 3:37 PM MST	Flash Flood Warning Considerable damage threat	PSR	Pinal	3 hr
Sep 26, 5:03 PM MST	Flash Flood Warning Considerable damage threat	PSR	Pinal	3 hr
Sep 26, 5:47 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa, Pinal	3 hr
Sep 26, 6:49 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Pinal	3 hr
Sep 27, 9:57 AM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	3 hr
Sep 27, 11:08 AM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	3 hr
Sep 27, 11:26 AM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	3 hr
Sep 27, 1:09 PM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	3 hr
Sep 27, 1:12 PM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	2 hr
Sep 27, 2:27 PM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	2 hr
Sep 27, 2:58 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila	3 hr
Sep 27, 3:06 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino	3 hr
Sep 27, 4:08 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Navajo	3 hr
Sep 27, 4:13 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	2 hr
Sep 27, 4:47 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 27, 5:00 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 27, 5:24 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	4 hr
Sep 27, 5:27 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino	2 hr
Sep 27, 5:49 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 27, 6:47 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 27, 7:18 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Sep 28, 4:38 AM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino, Gila	5 hr
Sep 28, 11:00 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 28, 12:40 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 28, 1:41 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Sep 28, 2:04 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	5 hr
Sep 28, 2:25 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	4 hr
Sep 28, 3:27 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino, Gila	3 hr
Sep 28, 6:26 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	2 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

Nearby

Alerts in force now Tornadoes on record The radar archive 2024 2026

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.