Alert archive / California / Red Flag Warnings
Red Flag Warnings in California, 2012
108 red flag warnings in 2012. 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 2012. Tap one for its archive.
- Red Flag Warnings
- 108
- Busiest month
- June19 red flag warnings
- Busiest day
- January 7, 20123 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 3:30 AM PST | Red Flag Warning | STO | 33 hr | |
| Jan 7, 3:37 AM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 38 hr |
| Jan 7, 10:01 AM PST | Red Flag Warning | LOX | Los Angeles | 32 hr |
| Jan 8, 3:04 AM PST | Red Flag Warning | PSR | Imperial, Riverside | 13 hr |
| Jan 12, 9:44 AM PST | Red Flag Warning | LOX | Los Angeles | 32 hr |
| Jan 12, 1:20 PM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 27 hr |
| Jan 14, 3:37 AM PST | Red Flag Warning | REV | El Dorado, Lassen, Nevada, Placer, Plumas, Sierra | 42 hr |
| Jan 18, 6:08 AM PST | Red Flag Warning | REV | El Dorado, Nevada, Placer, Sierra | 16 hr |
| Jan 19, 6:32 AM PST | Red Flag Warning | REV | El Dorado, Nevada, Placer, Sierra | 15 hr |
| Jan 26, 3:22 PM PST | Red Flag Warning | LOX | Los Angeles | 66 hr |
| Jan 27, 10:36 AM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 47 hr |
| Mar 1, 3:51 AM PST | Red Flag Warning | VEF | San Bernardino | 39 hr |
| Mar 1, 4:01 AM PST | Red Flag Warning | PSR | Imperial, Riverside | 39 hr |
| Mar 5, 5:25 AM PST | Red Flag Warning | VEF | San Bernardino | 38 hr |
| Mar 5, 1:00 PM PST | Red Flag Warning | PSR | Imperial, Riverside | 30 hr |
| Mar 7, 2:31 PM PST | Red Flag Warning | VEF | San Bernardino | 28 hr |
| Mar 30, 4:46 AM PDT | Red Flag Warning | VEF | San Bernardino | 40 hr |
| Mar 31, 5:17 AM PDT | Red Flag Warning | VEF | San Bernardino | 33 hr |
| Apr 1, 1:34 PM PDT | Red Flag Warning | PSR | Imperial, Riverside | 30 hr |
| Apr 1, 2:09 PM PDT | Red Flag Warning | VEF | San Bernardino | 29 hr |
| Apr 4, 3:44 AM PDT | Red Flag Warning | VEF | San Bernardino | 40 hr |
| Apr 8, 11:23 AM PDT | Red Flag Warning | HNX | 51 hr | |
| Apr 9, 6:42 AM PDT | Red Flag Warning | VEF | Inyo, San Bernardino, Tulare | 36 hr |
| May 6, 2:33 PM PDT | Red Flag Warning | VEF | San Bernardino | 24 hr |
| May 13, 2:29 PM PDT | Red Flag Warning | VEF | Inyo, Tulare | 30 hr |
| May 13, 2:51 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 29 hr |
| May 13, 3:01 PM PDT | Red Flag Warning | REV | Lassen, Modoc | 28 hr |
| May 16, 9:54 AM PDT | Red Flag Warning | REV | 36 hr | |
| May 16, 11:12 AM PDT | Red Flag Warning | VEF | Inyo, Tulare | 36 hr |
| May 20, 2:02 PM PDT | Red Flag Warning | REV | 33 hr | |
| May 22, 2:25 PM PDT | Red Flag Warning | LOX | 39 hr | |
| May 23, 12:37 PM PDT | Red Flag Warning | REV | El Dorado, Nevada, Placer, Sierra | 34 hr |
| May 23, 3:07 PM PDT | Red Flag Warning | PSR | Imperial, Riverside, San Bernardino | 53 hr |
| May 23, 3:12 PM PDT | Red Flag Warning | VEF | Inyo, San Bernardino, Tulare | 56 hr |
| Jun 2, 6:57 AM PDT | Red Flag Warning | REV | 14 hr | |
| Jun 3, 7:01 AM PDT | Red Flag Warning | REV | 36 hr | |
| Jun 3, 3:10 PM PDT | Red Flag Warning | VEF | Inyo, San Bernardino, Tulare | 38 hr |
| Jun 4, 2:56 PM PDT | Red Flag Warning | VEF | San Bernardino | 29 hr |
| Jun 7, 2:26 PM PDT | Red Flag Warning | REV | El Dorado, Nevada, Placer, Sierra | 32 hr |
| Jun 8, 3:15 PM PDT | Red Flag Warning | STO | 51 hr | |
| Jun 9, 3:11 PM PDT | Red Flag Warning | MTR | 41 hr | |
| Jun 14, 3:26 PM PDT | Red Flag Warning | STO | 54 hr | |
| Jun 15, 7:33 AM PDT | Red Flag Warning | MTR | 25 hr | |
| Jun 16, 2:10 PM PDT | Red Flag Warning | VEF | San Bernardino | 56 hr |
| Jun 16, 2:50 PM PDT | Red Flag Warning | REV | Lassen | 30 hr |
| Jun 16, 2:50 PM PDT | Red Flag Warning | REV | El Dorado, Lassen, Nevada, Placer, Sierra | 55 hr |
| Jun 17, 9:05 AM PDT | Red Flag Warning | HNX | Kern | 35 hr |
| Jun 17, 2:39 PM PDT | Red Flag Warning | PSR | Riverside, San Bernardino | 32 hr |
| Jun 18, 3:34 AM PDT | Red Flag Warning | SGX | Riverside, San Bernardino, San Diego | 43 hr |
| Jun 18, 9:21 AM PDT | Red Flag Warning | LOX | 35 hr | |
| Jun 20, 1:20 PM PDT | Red Flag Warning | REV | El Dorado, Lassen, Nevada, Placer, Sierra | 33 hr |
| Jun 22, 5:16 AM PDT | Red Flag Warning | REV | 17 hr | |
| Jun 24, 1:45 PM PDT | Red Flag Warning | REV | 33 hr | |
| Jul 8, 9:44 AM PDT | Red Flag Warning | LOX | 11 hr | |
| Jul 8, 11:40 AM PDT | Red Flag Warning | HNX | Kern | 8 hr |
| Jul 8, 7:30 PM PDT | Red Flag Warning | HNX | 26 hr | |
| Jul 12, 2:48 AM PDT | Red Flag Warning | HNX | Kern | 26 hr |
| Jul 12, 3:05 AM PDT | Red Flag Warning | LOX | 18 hr | |
| Jul 12, 6:27 AM PDT | Red Flag Warning | VEF | Inyo, Tulare | 16 hr |
| Jul 16, 9:26 AM PDT | Red Flag Warning | REV | 13 hr | |
| Jul 21, 8:58 PM PDT | Red Flag Warning | MFR | Modoc | 23 hr |
| Jul 25, 10:00 AM PDT | Red Flag Warning | HNX | 12 hr | |
| Jul 25, 9:49 PM PDT | Red Flag Warning | HNX | 11 hr | |
| Aug 3, 3:04 PM PDT | Red Flag Warning | STO | 47 hr | |
| Aug 3, 3:11 PM PDT | Red Flag Warning | EKA | 48 hr | |
| Aug 3, 3:17 PM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 53 hr |
| Aug 4, 3:12 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 47 hr |
| Aug 4, 11:08 AM PDT | Red Flag Warning | MTR | Monterey, San Benito | 7 hr |
| Aug 7, 9:04 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 11 hr |
| Aug 10, 1:56 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Aug 11, 1:41 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Aug 16, 3:40 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 55 hr |
| Aug 20, 2:50 PM PDT | Red Flag Warning | REV | Lassen | 30 hr |
| Aug 21, 10:27 AM PDT | Red Flag Warning | LOX | Los Angeles | 29 hr |
| Aug 21, 2:50 PM PDT | Red Flag Warning | HNX | 25 hr | |
| Aug 22, 9:45 AM PDT | Red Flag Warning | LOX | 6 hr | |
| Aug 25, 8:29 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 36 hr |
| Aug 25, 1:35 PM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 32 hr |
| Aug 25, 1:57 PM PDT | Red Flag Warning | STO | 32 hr | |
| Aug 27, 6:52 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 39 hr |
| Aug 27, 2:12 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Aug 27, 2:53 PM PDT | Red Flag Warning | STO | 31 hr | |
| Sep 4, 2:09 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Sep 5, 10:13 AM PDT | Red Flag Warning | STO | 17 hr | |
| Sep 5, 10:18 AM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 17 hr |
| Sep 5, 10:46 AM PDT | Red Flag Warning | MTR | Alameda, Contra Costa, Marin, Napa, Sonoma | 16 hr |
| Sep 8, 2:30 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Sep 8, 2:43 PM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 29 hr |
| Sep 8, 7:36 PM PDT | Red Flag Warning | STO | 24 hr | |
| Sep 11, 2:52 PM PDT | Red Flag Warning | MFR | Siskiyou | 47 hr |
| Sep 14, 9:10 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 12 hr |
| Sep 14, 2:27 PM PDT | Red Flag Warning | STO | 30 hr | |
| Sep 14, 2:40 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Sep 15, 6:56 AM PDT | Red Flag Warning | REV | Lassen, Modoc | 13 hr |
| Sep 29, 1:45 PM PDT | Red Flag Warning | HNX | 3 days | |
| Sep 29, 3:51 PM PDT | Red Flag Warning | LOX | Los Angeles | 3 days |
| Oct 16, 5:18 PM PDT | Red Flag Warning | STO | 39 hr | |
| Oct 17, 10:35 AM PDT | Red Flag Warning | MTR | 21 hr | |
| Oct 24, 1:40 PM PDT | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 3 days |
| Oct 24, 3:42 PM PDT | Red Flag Warning | LOX | Los Angeles | 3 days |
| Nov 3, 1:04 PM PDT | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 14 hr |
| Nov 3, 3:30 PM PDT | Red Flag Warning | LOX | 50 hr | |
| Nov 7, 8:42 AM PST | Red Flag Warning | REV | 34 hr | |
| Nov 7, 10:00 AM PST | Red Flag Warning | VEF | Inyo, Tulare | 36 hr |
| Nov 12, 10:08 AM PST | Red Flag Warning | LOX | Los Angeles | 32 hr |
| Dec 8, 1:35 PM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 38 hr |
| Dec 8, 3:23 PM PST | Red Flag Warning | LOX | Los Angeles | 41 hr |
| Dec 10, 3:45 AM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 9 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County23
- Modoc County20
- Riverside County14
- Lassen County12
- Sierra County12
- El Dorado County9
- Nevada County9
- Placer County9
- San Diego County8
- Los Angeles County8
- Siskiyou County8
- Orange County7
- Inyo County7
- Tulare County7
- Plumas County6
- Imperial County5
- Kern County3
- Monterey County1
- San Benito County1
- Alameda County1
- Contra Costa County1
- Marin County1
- Napa County1
- Sonoma County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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. Rebuilt daily.