Alert archive / California / Red Flag Warnings

Red Flag Warnings in California, 2025

49 red flag warnings in 2025. 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 2025. Tap one for its archive.

Red Flag Warnings
49
Busiest month
July14 red flag warnings
Busiest day
June 20, 20253 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
Jan 5, 2:40 PM PSTRed Flag WarningLOXLos Angeles, Santa Barbara, Ventura5 days
Jan 6, 12:57 PM PSTRed Flag WarningSGXOrange, Riverside, San Bernardino, San Diego4 days
Jan 11, 3:40 AM PSTRed Flag WarningSGXOrange, Riverside, San Bernardino, San Diego5 days
Jan 11, 1:16 PM PSTRed Flag WarningLOXLos Angeles, San Luis Obispo, Santa Barbara, Ventura5 days
Jan 18, 12:54 PM PSTRed Flag WarningSGXOrange, Riverside, San Bernardino, San Diego6 days
Jan 18, 2:43 PM PSTRed Flag WarningLOXLos Angeles, Santa Barbara, Ventura6 days
May 17, 12:48 PM PDTRed Flag WarningSTO53 hr
May 30, 12:27 PM PDTRed Flag WarningREVMadera, Mono56 hr
Jun 1, 11:26 AM PDTRed Flag WarningSTO33 hr
Jun 12, 9:51 AM PDTRed Flag WarningREVLassen, Modoc37 hr
Jun 18, 12:38 PM PDTRed Flag WarningREVLassen, Madera, Mono59 hr
Jun 19, 10:48 AM PDTRed Flag WarningHNXKern66 hr
Jun 20, 11:57 AM PDTRed Flag WarningSTO45 hr
Jun 20, 1:43 PM PDTRed Flag WarningHNXFresno, Kern, Kings, Madera, Mariposa, Merced and 1 more39 hr
Jun 20, 2:14 PM PDTRed Flag WarningLOXLos Angeles, Santa Barbara, Ventura39 hr
Jun 29, 12:26 PM PDTRed Flag WarningSTO56 hr
Jun 29, 12:41 PM PDTRed Flag WarningEKA34 hr
Jun 29, 1:19 PM PDTRed Flag WarningMFRSiskiyou31 hr
Jun 30, 11:30 AM PDTRed Flag WarningEKA36 hr
Jun 30, 1:28 PM PDTRed Flag WarningMFRSiskiyou31 hr
Jul 1, 12:54 PM PDTRed Flag WarningMFRModoc, Siskiyou31 hr
Jul 2, 2:10 PM PDTRed Flag WarningREVLassen19 min
Jul 2, 2:29 PM PDTRed Flag WarningREVLassen34 hr
Jul 3, 12:04 PM PDTRed Flag WarningMFRModoc20 hr
Jul 23, 12:16 PM PDTRed Flag WarningMFRModoc, Siskiyou35 hr
Jul 23, 12:31 PM PDTRed Flag WarningEKA34 hr
Jul 24, 11:37 AM PDTRed Flag WarningEKA35 hr
Jul 24, 11:51 AM PDTRed Flag WarningMFRModoc, Siskiyou35 hr
Jul 26, 12:05 PM PDTRed Flag WarningMFRSiskiyou33 hr
Jul 28, 10:34 AM PDTRed Flag WarningEKA7 hr
Jul 28, 12:59 PM PDTRed Flag WarningMFRModoc34 hr
Jul 29, 12:46 PM PDTRed Flag WarningMFRModoc, Siskiyou34 hr
Jul 29, 12:56 PM PDTRed Flag WarningEKA34 hr
Jul 30, 1:14 PM PDTRed Flag WarningMFRModoc, Siskiyou31 hr
Aug 18, 1:16 PM PDTRed Flag WarningLOXLos Angeles, San Luis Obispo, Santa Barbara, Ventura5 days
Aug 19, 2:44 PM PDTRed Flag WarningHNXKern4 days
Aug 23, 1:13 PM PDTRed Flag WarningMFRModoc, Siskiyou32 hr
Aug 24, 11:33 AM PDTRed Flag WarningEKA35 hr
Aug 24, 1:22 PM PDTRed Flag WarningMFRModoc, Siskiyou32 hr
Aug 25, 1:53 PM PDTRed Flag WarningMFRModoc, Siskiyou31 hr
Aug 26, 12:17 AM PDTRed Flag WarningEKA21 hr
Aug 26, 1:13 PM PDTRed Flag WarningMFRModoc, Siskiyou32 hr
Sep 1, 12:04 PM PDTRed Flag WarningEKA32 hr
Sep 1, 12:43 PM PDTRed Flag WarningREVLassen, Modoc34 hr
Sep 1, 1:46 PM PDTRed Flag WarningMFRModoc, Siskiyou55 hr
Sep 2, 8:50 PM PDTRed Flag WarningEKA8 hr
Sep 4, 7:01 PM PDTRed Flag WarningMFRModoc25 hr
Sep 25, 8:08 AM PDTRed Flag WarningSTO45 hr
Oct 27, 1:37 PM PDTRed Flag WarningLOXLos Angeles, Ventura52 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. June 20, 20253red flag warnings
  2. June 29, 20253red flag warnings
  3. September 1, 20253red flag warnings
  4. January 11, 20252red flag warnings
  5. January 18, 20252red flag warnings
  6. June 30, 20252red flag warnings
  7. July 2, 20252red flag warnings
  8. July 23, 20252red flag warnings
  9. July 24, 20252red flag warnings
  10. July 28, 20252red flag warnings
  11. July 29, 20252red flag warnings
  12. August 24, 20252red flag warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20242026

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.