Alert archive / California / Red Flag Warnings
Red Flag Warnings in California, 2017
128 red flag warnings in 2017. 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 2017. Tap one for its archive.
- Red Flag Warnings
- 128
- Busiest month
- July29 red flag warnings
- Busiest day
- October 13, 20176 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 |
|---|---|---|---|---|
| Mar 27, 12:52 PM PDT | Red Flag Warning | PSR | Imperial, Riverside | 30 hr |
| Mar 30, 2:56 AM PDT | Red Flag Warning | PSR | Imperial, Riverside | 17 hr |
| Apr 20, 9:14 AM PDT | Red Flag Warning | VEF | San Bernardino | 35 hr |
| Apr 27, 3:40 AM PDT | Red Flag Warning | PSR | Imperial, Riverside | 41 hr |
| Apr 27, 1:55 PM PDT | Red Flag Warning | VEF | San Bernardino | 55 hr |
| Apr 28, 2:25 PM PDT | Red Flag Warning | PSR | Imperial, Riverside | 29 hr |
| May 5, 2:41 PM PDT | Red Flag Warning | VEF | San Bernardino | 29 hr |
| Jun 8, 11:36 AM PDT | Red Flag Warning | VEF | San Bernardino | 3 days |
| Jun 17, 1:21 PM PDT | Red Flag Warning | STO | 32 hr | |
| Jun 20, 9:02 AM PDT | Red Flag Warning | STO | 3 days | |
| Jun 21, 3:04 PM PDT | Red Flag Warning | LOX | 30 hr | |
| Jun 24, 1:40 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 56 hr |
| Jun 25, 4:28 AM PDT | Red Flag Warning | VEF | San Bernardino | 41 hr |
| Jun 25, 9:26 AM PDT | Red Flag Warning | REV | Lassen | 38 hr |
| Jun 25, 8:37 PM PDT | Red Flag Warning | LOX | Los Angeles | 24 hr |
| Jun 26, 9:34 AM PDT | Red Flag Warning | SGX | Riverside, San Bernardino, San Diego | 39 hr |
| Jul 3, 2:26 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Jul 3, 2:26 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 54 hr |
| Jul 4, 7:35 AM PDT | Red Flag Warning | REV | 45 hr | |
| Jul 5, 2:22 AM PDT | Red Flag Warning | HNX | 16 hr | |
| Jul 5, 3:30 AM PDT | Red Flag Warning | VEF | Inyo, Tulare | 20 hr |
| Jul 5, 1:29 PM PDT | Red Flag Warning | LOX | 68 hr | |
| Jul 6, 2:42 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 18 hr |
| Jul 7, 9:11 PM PDT | Red Flag Warning | MTR | 30 hr | |
| Jul 8, 12:49 PM PDT | Red Flag Warning | REV | Lassen | 31 hr |
| Jul 8, 12:49 PM PDT | Red Flag Warning | REV | Lassen | 58 hr |
| Jul 12, 2:00 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Jul 13, 11:08 AM PDT | Red Flag Warning | MFR | Modoc | 33 hr |
| Jul 14, 1:12 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Jul 15, 10:32 AM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 57 hr |
| Jul 15, 2:00 PM PDT | Red Flag Warning | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz | 31 hr |
| Jul 15, 6:44 PM PDT | Red Flag Warning | STO | 21 hr | |
| Jul 16, 5:30 AM PDT | Red Flag Warning | MFR | Modoc | 15 hr |
| Jul 16, 8:32 AM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 59 hr |
| Jul 16, 11:31 AM PDT | Red Flag Warning | STO | 56 hr | |
| Jul 16, 2:13 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Jul 17, 2:26 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 31 hr |
| Jul 18, 1:34 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Jul 22, 9:09 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 37 hr |
| Jul 22, 2:50 PM PDT | Red Flag Warning | MFR | Modoc | 32 hr |
| Jul 23, 2:30 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 56 hr |
| Jul 25, 4:57 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 18 hr |
| Jul 25, 4:57 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 18 hr |
| Jul 25, 10:53 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 22 hr |
| Jul 31, 9:12 AM PDT | Red Flag Warning | LOX | 18 hr | |
| Aug 3, 2:43 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Aug 4, 2:23 PM PDT | Red Flag Warning | MFR | Modoc | 33 hr |
| Aug 5, 2:13 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Aug 6, 2:30 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Aug 6, 11:36 PM PDT | Red Flag Warning | EKA | 20 hr | |
| Aug 7, 2:16 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 32 hr |
| Aug 8, 3:22 AM PDT | Red Flag Warning | EKA | 17 hr | |
| Aug 8, 2:18 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 32 hr |
| Aug 8, 3:52 PM PDT | Red Flag Warning | EKA | 28 hr | |
| Aug 9, 1:02 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 33 hr |
| Aug 19, 3:40 AM PDT | Red Flag Warning | EKA | 28 hr | |
| Aug 21, 2:11 PM PDT | Red Flag Warning | EKA | 33 hr | |
| Aug 21, 2:13 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 33 hr |
| Aug 22, 2:09 AM PDT | Red Flag Warning | STO | 22 hr | |
| Aug 22, 2:58 PM PDT | Red Flag Warning | MFR | Modoc | 29 hr |
| Aug 24, 10:00 PM PDT | Red Flag Warning | MFR | Siskiyou | 47 hr |
| Aug 25, 2:36 AM PDT | Red Flag Warning | EKA | 62 hr | |
| Aug 26, 1:12 PM PDT | Red Flag Warning | MFR | Siskiyou | 32 hr |
| Aug 28, 2:16 PM PDT | Red Flag Warning | REV | Lassen, Modoc | 54 hr |
| Aug 29, 8:33 PM PDT | Red Flag Warning | MFR | Modoc | 87 min |
| Aug 30, 4:31 AM PDT | Red Flag Warning | MFR | Modoc | 14 hr |
| Aug 30, 12:00 PM PDT | Red Flag Warning | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz | 3 days |
| Aug 30, 2:45 PM PDT | Red Flag Warning | MFR | Siskiyou | 42 hr |
| Aug 30, 3:15 PM PDT | Red Flag Warning | EKA | 42 hr | |
| Aug 31, 4:47 AM PDT | Red Flag Warning | STO | 51 hr | |
| Sep 3, 3:09 AM PDT | Red Flag Warning | MFR | Siskiyou | 30 hr |
| Sep 3, 4:04 AM PDT | Red Flag Warning | EKA | 29 hr | |
| Sep 3, 11:25 AM PDT | Red Flag Warning | STO | 22 hr | |
| Sep 5, 2:07 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 51 hr |
| Sep 6, 4:44 AM PDT | Red Flag Warning | EKA | 29 hr | |
| Sep 6, 8:20 AM PDT | Red Flag Warning | STO | 11 hr | |
| Sep 6, 8:48 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 23 hr |
| Sep 6, 7:10 PM PDT | Red Flag Warning | STO | 19 hr | |
| Sep 11, 2:44 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 29 hr |
| Sep 17, 4:23 AM PDT | Red Flag Warning | REV | Lassen | 42 hr |
| Sep 23, 2:49 AM PDT | Red Flag Warning | MTR | 4 days | |
| Sep 23, 4:30 AM PDT | Red Flag Warning | STO | 4 days | |
| Sep 25, 9:30 AM PDT | Red Flag Warning | EKA | 29 hr | |
| Sep 30, 9:27 AM PDT | Red Flag Warning | STO | 3 days | |
| Sep 30, 9:57 AM PDT | Red Flag Warning | MTR | 3 days | |
| Sep 30, 10:27 AM PDT | Red Flag Warning | EKA | 3 days | |
| Oct 5, 9:36 AM PDT | Red Flag Warning | LOX | Los Angeles | 34 hr |
| Oct 6, 9:49 AM PDT | Red Flag Warning | MTR | Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara and 2 more | 4 days |
| Oct 6, 10:03 AM PDT | Red Flag Warning | STO | 3 days | |
| Oct 7, 9:35 AM PDT | Red Flag Warning | EKA | 53 hr | |
| Oct 7, 1:15 PM PDT | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 69 hr |
| Oct 7, 4:03 PM PDT | Red Flag Warning | LOX | Los Angeles, Santa Barbara | 66 hr |
| Oct 8, 3:40 AM PDT | Red Flag Warning | HNX | 43 hr | |
| Oct 10, 11:14 AM PDT | Red Flag Warning | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz | 54 hr |
| Oct 10, 12:11 PM PDT | Red Flag Warning | STO | 53 hr | |
| Oct 11, 2:55 PM PDT | Red Flag Warning | LOX | Los Angeles | 4 days |
| Oct 12, 5:18 PM PDT | Red Flag Warning | MTR | Marin, Napa, Sonoma | 63 hr |
| Oct 12, 10:37 PM PDT | Red Flag Warning | STO | 57 hr | |
| Oct 13, 11:18 AM PDT | Red Flag Warning | EKA | 34 hr | |
| Oct 13, 12:38 PM PDT | Red Flag Warning | HNX | 53 hr | |
| Oct 13, 1:01 PM PDT | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 47 hr |
| Oct 13, 2:45 PM PDT | Red Flag Warning | VEF | San Bernardino | 47 hr |
| Oct 19, 6:05 AM PDT | Red Flag Warning | REV | El Dorado, Nevada, Placer, Sierra | 14 hr |
| Oct 20, 1:14 PM PDT | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 5 days |
| Oct 20, 2:02 PM PDT | Red Flag Warning | LOX | Los Angeles | 5 days |
| Oct 20, 3:08 PM PDT | Red Flag Warning | VEF | San Bernardino | 23 hr |
| Oct 22, 12:45 PM PDT | Red Flag Warning | HNX | 53 hr | |
| Oct 22, 9:39 PM PDT | Red Flag Warning | VEF | San Bernardino | 44 hr |
| Nov 14, 2:15 PM PST | Red Flag Warning | REV | 23 hr | |
| Dec 2, 2:00 PM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 8 days |
| Dec 2, 2:41 PM PST | Red Flag Warning | LOX | Los Angeles | 13 days |
| Dec 7, 2:28 AM PST | Red Flag Warning | PSR | Imperial, Riverside | 13 hr |
| Dec 7, 3:21 AM PST | Red Flag Warning | HNX | 37 hr | |
| Dec 7, 3:24 AM PST | Red Flag Warning | VEF | San Bernardino | 12 hr |
| Dec 12, 10:39 AM PST | Red Flag Warning | HNX | 4 days | |
| Dec 13, 8:44 AM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 49 hr |
| Dec 13, 1:59 PM PST | Red Flag Warning | VEF | San Bernardino | 28 hr |
| Dec 14, 1:41 AM PST | Red Flag Warning | PSR | Imperial, Riverside, San Bernardino | 14 hr |
| Dec 15, 2:00 AM PST | Red Flag Warning | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz | 56 hr |
| Dec 15, 2:14 AM PST | Red Flag Warning | STO | 56 hr | |
| Dec 15, 9:51 AM PST | Red Flag Warning | LOX | Los Angeles | 58 hr |
| Dec 15, 12:41 PM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 55 hr |
| Dec 15, 1:57 PM PST | Red Flag Warning | LOX | Los Angeles | 54 hr |
| Dec 18, 2:31 PM PST | Red Flag Warning | REV | 44 hr | |
| Dec 18, 2:33 PM PST | Red Flag Warning | VEF | Inyo, San Bernardino, Tulare | 72 hr |
| Dec 19, 2:53 PM PST | Red Flag Warning | LOX | Los Angeles | 66 hr |
| Dec 20, 11:57 AM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 30 hr |
| Dec 24, 2:56 AM PST | Red Flag Warning | HNX | 32 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Modoc County34
- Siskiyou County22
- San Bernardino County20
- Riverside County14
- Lassen County9
- Los Angeles County9
- San Diego County8
- Orange County7
- Imperial County6
- Sierra County5
- San Mateo County5
- Santa Clara County5
- Santa Cruz County5
- Plumas County4
- Monterey County4
- San Benito County4
- El Dorado County3
- Nevada County3
- Placer County3
- Inyo County2
- Tulare County2
- Marin County2
- Napa County2
- Sonoma County2
- Alameda County1
- Contra Costa County1
- Santa Barbara County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.