Alert archive / California / River Flood Warnings

River Flood Warnings in California, 2023

72 river flood warnings in 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 river flood warnings reaches back to 2005.

River Flood Warnings by county

Each county as a circle sized by its count in 2023. Tap one for its archive.

River Flood Warnings
72
Busiest month
January28 river flood warnings
Busiest day
March 14, 20238 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.

IssuedProductOfficeCountiesLasted
Jan 3, 4:24 PM PSTRiver Flood WarningMTRSonoma34 hr
Jan 3, 7:16 PM PSTRiver Flood WarningEKAMendocino39 hr
Jan 4, 7:15 AM PSTRiver Flood WarningEKAMendocino9 hr
Jan 5, 1:44 AM PSTRiver Flood WarningEKAMendocino8 hr
Jan 7, 10:21 AM PSTRiver Flood WarningEKAMendocino59 hr
Jan 7, 5:51 PM PSTRiver Flood WarningEKAMendocino23 hr
Jan 8, 9:28 AM PSTRiver Flood WarningMTRSanta Clara30 hr
Jan 8, 12:32 PM PSTRiver Flood WarningMTRMonterey34 hr
Jan 8, 6:58 PM PSTRiver Flood WarningHNXMerced62 hr
Jan 8, 8:39 PM PSTRiver Flood WarningSTOAmador, El Dorado, Sacramento21 days
Jan 8, 9:33 PM PSTRiver Flood WarningMTRSonoma30 hr
Jan 8, 9:49 PM PSTRiver Flood WarningMTRMonterey, San Benito, Santa Clara, Santa Cruz29 hr
Jan 9, 9:00 AM PSTRiver Flood WarningEKAMendocino10 hr
Jan 9, 10:22 AM PSTRiver Flood WarningMTRMonterey9 days
Jan 9, 2:08 PM PSTRiver Flood WarningSTOTehama27 hr
Jan 10, 2:41 AM PSTRiver Flood WarningEKAMendocino54 hr
Jan 10, 6:31 AM PSTRiver Flood WarningMTRMonterey36 hr
Jan 11, 10:19 AM PSTRiver Flood WarningMTRSonoma12 hr
Jan 13, 11:30 AM PSTRiver Flood WarningEKAMendocino36 hr
Jan 13, 12:01 PM PSTRiver Flood WarningEKAMendocino33 hr
Jan 14, 10:22 AM PSTRiver Flood WarningSTOAmador, El Dorado, Sacramento16 hr
Jan 14, 12:32 PM PSTRiver Flood WarningMTRMonterey19 hr
Jan 14, 2:26 PM PSTRiver Flood WarningSTOTehama19 hr
Jan 14, 2:26 PM PSTRiver Flood WarningSTOButte, Glenn21 days
Jan 16, 3:56 AM PSTRiver Flood WarningSGXSan Diego21 hr
Jan 16, 7:17 AM PSTRiver Flood WarningSGXSan Diego17 hr
Jan 16, 11:47 AM PSTRiver Flood WarningSTOSan Joaquin19 hr
Jan 16, 11:47 AM PSTRiver Flood WarningSTOAmador, El Dorado, Sacramento18 hr
Feb 24, 9:09 PM PSTRiver Flood WarningLOXVentura5 hr
Feb 24, 9:26 PM PSTRiver Flood WarningSGXSan Diego31 hr
Feb 24, 11:58 PM PSTRiver Flood WarningLOXSanta Barbara30 hr
Mar 9, 5:10 AM PSTRiver Flood WarningEKAMendocino43 hr
Mar 9, 2:12 PM PSTRiver Flood WarningSTOAmador, El Dorado, Sacramento21 days
Mar 9, 2:20 PM PSTRiver Flood WarningMTRMonterey30 hr
Mar 10, 1:10 AM PSTRiver Flood WarningMTRNapa8 hr
Mar 10, 5:16 AM PSTRiver Flood WarningMTRMonterey6 days
Mar 10, 9:43 AM PSTRiver Flood WarningMTRMonterey, San Benito, Santa Clara, Santa Cruz6 days
Mar 10, 10:56 AM PSTRiver Flood WarningLOXSan Luis Obispo8 hr
Mar 10, 12:31 PM PSTRiver Flood WarningHNXMerced12 days
Mar 10, 12:32 PM PSTRiver Flood WarningHNXMerced16 hr
Mar 11, 4:38 PM PSTRiver Flood WarningMTRMonterey7 days
Mar 13, 9:12 AM PDTRiver Flood WarningEKAHumboldt56 hr
Mar 13, 7:57 PM PDTRiver Flood WarningREVPlumas5 days
Mar 13, 9:18 PM PDTRiver Flood WarningSTOTehama21 days
Mar 13, 9:37 PM PDTRiver Flood WarningSTOAmador, El Dorado, Sacramento21 days
Mar 13, 10:35 PM PDTRiver Flood WarningEKAMendocino29 hr
Mar 14, 9:20 AM PDTRiver Flood WarningSTOTehama47 hr
Mar 14, 3:10 PM PDTRiver Flood WarningSTOButte, Glenn21 days
Mar 14, 4:43 PM PDTRiver Flood WarningEKAMendocino11 hr
Mar 14, 4:59 PM PDTRiver Flood WarningMFRModoc34 hr
Mar 14, 9:13 PM PDTRiver Flood WarningSTOTehama28 hr
Mar 14, 9:13 PM PDTRiver Flood WarningSTOTehama22 hr
Mar 14, 9:13 PM PDTRiver Flood WarningSTOButte, Glenn21 days
Mar 17, 8:47 AM PDTRiver Flood WarningSTOSan Joaquin21 days
Mar 21, 11:10 AM PDTRiver Flood WarningSGXSan Diego10 hr
Mar 21, 11:21 AM PDTRiver Flood WarningSGXSan Diego10 hr
Mar 23, 1:53 PM PDTRiver Flood WarningHNXMerced15 days
Apr 7, 9:58 AM PDTRiver Flood WarningHNXMerced3 days
Apr 14, 8:55 AM PDTRiver Flood WarningHNXMerced3 days
Apr 18, 9:15 AM PDTRiver Flood WarningHNXMerced72 hr
Apr 28, 9:06 AM PDTRiver Flood WarningHNXMariposa47 hr
May 14, 4:35 PM PDTRiver Flood WarningHNXMariposa12 days
May 17, 4:42 PM PDTRiver Flood WarningREVMono9 days
May 20, 9:04 AM PDTRiver Flood WarningREVAlpine47 hr
May 20, 9:24 AM PDTRiver Flood WarningHNXMariposa5 days
May 27, 8:50 AM PDTRiver Flood WarningHNXMariposa11 days
Jun 10, 9:08 PM PDTRiver Flood WarningHNXMariposa36 hr
Jun 14, 9:02 AM PDTRiver Flood WarningHNXMariposa4 days
Jun 14, 9:05 AM PDTRiver Flood WarningHNXMariposa49 hr
Jun 15, 1:05 PM PDTRiver Flood WarningREVMono55 hr
Jun 17, 9:14 AM PDTRiver Flood WarningHNXMariposa25 hr
Jun 19, 8:43 AM PDTRiver Flood WarningREVMono30 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.

  1. March 14, 20238river flood warnings
  2. January 9, 20237river flood warnings
  3. March 10, 20236river flood warnings
  4. January 14, 20234river flood warnings
  5. January 16, 20234river flood warnings
  6. January 4, 20233river flood warnings
  7. January 8, 20233river flood warnings
  8. February 25, 20233river flood warnings
  9. March 9, 20233river flood warnings
  10. March 15, 20233river flood warnings
  11. January 10, 20232river flood warnings
  12. January 13, 20232river flood warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20222024

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.