Flash Flood Warnings in Arizona

7,510 flash flood warnings since 1986. 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 since 1986. Tap one for its archive.

Flash Flood Warnings: 7,510
Busiest year: 2022946 flash flood warnings
Average year: 183over 41 years on file

Over time

By year

Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.

By month of the year

By county

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

The latest flash flood warnings

The most recent on file, newest first.

Issued	Product	Office	Counties	Lasted
Sep 18, 2:11 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Apache	3 hr
Sep 17, 5:08 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino	3 hr
Sep 16, 10:15 PM MST	Flash Flood Warning	TWC	Pima	6 hr
Sep 16, 6:25 PM MST	Flash Flood Warning	TWC	Pima, Pinal	4 hr
Sep 16, 5:52 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	4 hr
Sep 16, 5:52 PM MST	Flash Flood Warning	TWC	Pima	3 hr
Sep 16, 5:36 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	4 hr
Sep 16, 5:24 PM MST	Flash Flood Warning	TWC	Pima	5 hr
Sep 16, 4:37 PM MST	Flash Flood Warning	TWC	Cochise	113 min
Sep 16, 4:18 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Sep 16, 3:57 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Sep 16, 3:32 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Yavapai	4 hr

Nearby

Alerts in force now Tornadoes on record The radar archive

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. Rebuilt daily.