Alert archive / California / Flash Flood Warnings / 2023

Flash Flood Warnings in California, May 2023

14 flash flood warnings in May 2023. 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 May 2023. Tap one for its archive.

Flash Flood Warnings: 14
Busiest day: May 22, 20235 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, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
May 4, 2:23 PM PDT	Flash Flood Warning	REV	Lassen, Plumas	52 min
May 20, 2:22 PM PDT	Flash Flood Warning	REV	Alpine	69 min
May 20, 4:38 PM PDT	Flash Flood Warning	HNX	Fresno	48 min
May 20, 6:28 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo	3 hr
May 21, 3:58 PM PDT	Flash Flood Warning	HNX	Madera	55 min
May 21, 5:43 PM PDT	Flash Flood Warning	HNX	Tulare	80 min
May 21, 6:48 PM PDT	Flash Flood Warning	HNX	Kern	57 min
May 21, 6:51 PM PDT	Flash Flood Warning Considerable damage threat	VEF	San Bernardino	2 hr
May 21, 7:04 PM PDT	Flash Flood Warning	HNX	Kern	101 min
May 21, 7:24 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo	3 hr
May 29, 5:04 PM PDT	Flash Flood Warning	REV	Alpine, Mono	106 min
May 30, 3:08 PM PDT	Flash Flood Warning	MFR	Siskiyou	52 min
May 30, 4:54 PM PDT	Flash Flood Warning Considerable damage threat	LOX	Ventura	103 min
May 31, 4:09 PM PDT	Flash Flood Warning	REV	Alpine, Mono	111 min

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 2022 2024

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.