Alert archive / California / River Flood Warnings

River Flood Warnings in California, 2022

8 river flood warnings in 2022. 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 river flood warnings reaches back to 2005.

River Flood Warnings by county

Each county as a circle sized by its count in 2022. Tap one for its archive.

River Flood Warnings: 8
Busiest month: December8 river flood warnings
Busiest day: December 30, 20225 river flood warnings

Over time

By month

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
Dec 30, 9:29 AM PST	River Flood Warning	EKA	Humboldt	47 hr
Dec 30, 10:22 AM PST	River Flood Warning	REV	Lassen	52 hr
Dec 30, 10:22 AM PST	River Flood Warning	REV	Alpine	36 hr
Dec 30, 3:40 PM PST	River Flood Warning	EKA	Mendocino	20 hr
Dec 30, 3:44 PM PST	River Flood Warning	EKA	Humboldt	12 hr
Dec 30, 9:03 PM PST	River Flood Warning	STO	Amador, El Dorado, Sacramento	37 hr
Dec 30, 9:58 PM PST	River Flood Warning	REV	Nevada, Placer	34 hr
Dec 30, 10:57 PM PST	River Flood Warning	EKA	Mendocino	2 hr

By county

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

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2021 2023

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.