Alert archive / California / Red Flag Warnings
Red Flag Warnings in California, 2010
45 red flag warnings in 2010. 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 2010. Tap one for its archive.
- Red Flag Warnings
- 45
- Busiest month
- August13 red flag warnings
- Busiest day
- August 16, 20103 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 |
|---|---|---|---|---|
| Apr 27, 3:13 PM PDT | Red Flag Warning | PSR | Imperial, Riverside | 29 hr |
| Apr 29, 1:52 PM PDT | Red Flag Warning | PSR | Imperial, Riverside | 6 hr |
| May 1, 1:33 PM PDT | Red Flag Warning | PSR | Imperial, Riverside | 29 hr |
| May 5, 3:32 AM PDT | Red Flag Warning | VEF | San Bernardino | 17 hr |
| May 8, 6:29 AM PDT | Red Flag Warning | VEF | San Bernardino | 41 hr |
| May 8, 2:42 PM PDT | Red Flag Warning | PSR | Imperial, Riverside, San Bernardino | 32 hr |
| May 20, 1:35 PM PDT | Red Flag Warning | SGX | Riverside, San Bernardino, San Diego | 48 hr |
| May 20, 2:02 PM PDT | Red Flag Warning | VEF | San Bernardino | 57 hr |
| May 22, 5:19 AM PDT | Red Flag Warning | PSR | Imperial, Riverside, San Bernardino | 14 hr |
| May 22, 5:19 AM PDT | Red Flag Warning | PSR | Imperial, Riverside | 39 hr |
| Jun 9, 2:58 PM PDT | Red Flag Warning | VEF | San Bernardino | 35 hr |
| Jun 11, 4:57 AM PDT | Red Flag Warning | STO | 39 hr | |
| Jun 11, 9:14 AM PDT | Red Flag Warning | MTR | 46 hr | |
| Jun 15, 4:54 AM PDT | Red Flag Warning | VEF | Inyo, San Bernardino | 41 hr |
| Jul 17, 2:52 PM PDT | Red Flag Warning | REV | Lassen, Modoc | 30 hr |
| Jul 24, 9:21 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 57 hr |
| Jul 24, 10:57 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 35 hr |
| Jul 25, 1:09 PM PDT | Red Flag Warning | STO | 11 hr | |
| Jul 26, 9:16 AM PDT | Red Flag Warning | REV | Lassen, Modoc | 9 hr |
| Jul 27, 10:22 AM PDT | Red Flag Warning | REV | Lassen, Modoc | 22 hr |
| Jul 29, 12:16 PM PDT | Red Flag Warning | REV | Lassen, Modoc | 34 hr |
| Jul 30, 12:17 PM PDT | Red Flag Warning | REV | Lassen, Modoc | 32 hr |
| Aug 16, 9:36 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 39 hr |
| Aug 16, 2:46 PM PDT | Red Flag Warning | EKA | 30 hr | |
| Aug 16, 3:02 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Aug 17, 2:10 AM PDT | Red Flag Warning | STO | 18 hr | |
| Aug 17, 10:29 AM PDT | Red Flag Warning | REV | 35 hr | |
| Aug 20, 7:40 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 39 hr |
| Aug 20, 10:03 AM PDT | Red Flag Warning | STO | 34 hr | |
| Aug 20, 10:46 AM PDT | Red Flag Warning | MFR | Modoc | 34 hr |
| Aug 25, 10:36 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 37 hr |
| Aug 25, 12:51 PM PDT | Red Flag Warning | MFR | Modoc | 33 hr |
| Aug 25, 1:26 PM PDT | Red Flag Warning | STO | 31 hr | |
| Aug 26, 10:15 AM PDT | Red Flag Warning | REV | El Dorado, Nevada, Placer, Sierra | 53 hr |
| Aug 27, 10:05 AM PDT | Red Flag Warning | VEF | San Bernardino | 35 hr |
| Sep 3, 3:57 PM PDT | Red Flag Warning | LOX | 29 hr | |
| Sep 6, 1:46 PM PDT | Red Flag Warning | REV | El Dorado, Lassen, Nevada, Placer, Sierra | 33 hr |
| Sep 7, 2:08 AM PDT | Red Flag Warning | VEF | San Bernardino | 42 hr |
| Sep 18, 1:41 PM PDT | Red Flag Warning | REV | 31 hr | |
| Sep 25, 9:10 AM PDT | Red Flag Warning | LOX | Los Angeles | 60 hr |
| Sep 26, 1:45 PM PDT | Red Flag Warning | HNX | 30 hr | |
| Sep 30, 7:41 AM PDT | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 14 hr |
| Oct 11, 4:53 AM PDT | Red Flag Warning | STO | 14 hr | |
| Oct 11, 9:47 AM PDT | Red Flag Warning | MTR | 44 hr | |
| Nov 12, 2:49 PM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 13 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.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20092011
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.