Alert archive / California / Red Flag Warnings

Red Flag Warnings in California, 2023

40 red flag 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 red flag warnings reaches back to 2005.

Red Flag Warnings by county

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

Red Flag Warnings
40
Busiest month
August15 red flag warnings
Busiest day
October 27, 20236 red flag 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
Jul 8, 1:30 PM PDTRed Flag WarningVEFSan Bernardino55 hr
Jul 22, 2:52 PM PDTRed Flag WarningMFRModoc54 hr
Jul 24, 9:01 AM PDTRed Flag WarningREVLassen, Modoc11 hr
Jul 26, 8:12 AM PDTRed Flag WarningREVLassen, Modoc13 hr
Jul 28, 2:12 PM PDTRed Flag WarningMFRModoc, Siskiyou30 hr
Jul 29, 2:13 AM PDTRed Flag WarningREVLassen, Modoc18 hr
Aug 2, 1:31 PM PDTRed Flag WarningMFRModoc, Siskiyou56 hr
Aug 14, 6:49 PM PDTRed Flag WarningEKA8 hr
Aug 15, 2:56 AM PDTRed Flag WarningEKA2 hr
Aug 15, 9:21 AM PDTRed Flag WarningEKA13 hr
Aug 15, 1:25 PM PDTRed Flag WarningMFRModoc, Siskiyou32 hr
Aug 16, 3:40 AM PDTRed Flag WarningEKA16 hr
Aug 16, 1:12 PM PDTRed Flag WarningMFRModoc, Siskiyou30 hr
Aug 19, 3:35 AM PDTRed Flag WarningEKA16 hr
Aug 19, 4:11 AM PDTRed Flag WarningMFRSiskiyou16 hr
Aug 20, 2:27 PM PDTRed Flag WarningEKA21 hr
Aug 23, 1:26 PM PDTRed Flag WarningEKA33 hr
Aug 23, 2:31 PM PDTRed Flag WarningMFRSiskiyou38 hr
Aug 29, 9:03 AM PDTRed Flag WarningEKA35 hr
Aug 29, 9:08 AM PDTRed Flag WarningSTO35 hr
Aug 29, 12:24 PM PDTRed Flag WarningMTRNapa, Sonoma32 hr
Sep 9, 4:15 AM PDTRed Flag WarningMTRMonterey, San Benito8 hr
Sep 16, 12:45 PM PDTRed Flag WarningEKA7 hr
Sep 20, 10:27 AM PDTRed Flag WarningMTRNapa, Sonoma26 hr
Sep 20, 10:42 AM PDTRed Flag WarningSTO30 hr
Sep 20, 12:12 PM PDTRed Flag WarningEKA27 hr
Sep 24, 11:31 AM PDTRed Flag WarningMFRModoc31 hr
Sep 24, 12:36 PM PDTRed Flag WarningREVLassen, Modoc31 hr
Sep 26, 9:12 AM PDTRed Flag WarningLOXSanta Barbara, Ventura23 hr
Oct 27, 9:36 AM PDTRed Flag WarningEKA55 hr
Oct 27, 10:01 AM PDTRed Flag WarningMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Mateo and 3 more55 hr
Oct 27, 10:09 AM PDTRed Flag WarningSTO55 hr
Oct 27, 11:33 AM PDTRed Flag WarningVEFSan Bernardino3 days
Oct 27, 2:01 PM PDTRed Flag WarningHNXKern, Tulare3 days
Oct 27, 2:15 PM PDTRed Flag WarningLOXLos Angeles, Ventura4 days
Oct 28, 12:41 PM PDTRed Flag WarningPSRImperial, Riverside28 hr
Nov 8, 9:28 AM PSTRed Flag WarningLOXLos Angeles, Ventura33 hr
Dec 8, 9:29 AM PSTRed Flag WarningLOXSanta Barbara, Ventura21 hr
Dec 8, 12:38 PM PSTRed Flag WarningSGXRiverside, San Bernardino50 hr
Dec 8, 3:10 PM PSTRed Flag WarningLOXLos Angeles, Ventura48 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. October 27, 20236red flag warnings
  2. August 15, 20234red flag warnings
  3. August 29, 20233red flag warnings
  4. September 20, 20233red flag warnings
  5. December 8, 20233red flag warnings
  6. August 16, 20232red flag warnings
  7. August 19, 20232red flag warnings
  8. August 23, 20232red flag warnings
  9. September 24, 20232red flag warnings
  10. July 8, 20231red flag warnings
  11. July 22, 20231red flag warnings
  12. July 24, 20231red flag 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.