Alert archive / California / Flash Flood Warnings
Flash Flood Warnings in California, 2009
52 flash flood warnings in 2009. 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Flash Flood Warnings
- 52
- Busiest month
- July11 flash flood warnings
- Busiest day
- August 23, 20095 flash flood 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 |
|---|---|---|---|---|
| Feb 5, 7:25 PM PST | Flash Flood Warning | LOX | Los Angeles | 80 min |
| Feb 7, 3:05 AM PST | Flash Flood Warning | LOX | Santa Barbara | 115 min |
| Feb 7, 3:06 PM PST | Flash Flood Warning | VEF | Inyo | 3 hr |
| Feb 7, 5:54 PM PST | Flash Flood Warning | VEF | Inyo | 2 hr |
| Feb 7, 10:10 PM PST | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Feb 17, 6:09 AM PST | Flash Flood Warning | MTR | Monterey | 36 min |
| Feb 17, 6:34 AM PST | Flash Flood Warning | MTR | Monterey | 26 min |
| Mar 2, 5:26 AM PST | Flash Flood Warning | MTR | Monterey | 3 hr |
| Mar 2, 9:45 AM PST | Flash Flood Warning | STO | Butte, Plumas, Tehama | 12 hr |
| Mar 4, 12:56 AM PST | Flash Flood Warning | MTR | Monterey | 57 min |
| May 23, 1:18 PM PDT | Flash Flood Warning | REV | Mono | 117 min |
| May 25, 5:21 PM PDT | Flash Flood Warning | REV | Alpine | 114 min |
| May 28, 2:15 PM PDT | Flash Flood Warning | STO | Tuolumne | 42 min |
| May 28, 2:19 PM PDT | Flash Flood Warning | STO | Amador, El Dorado | 110 min |
| May 28, 2:21 PM PDT | Flash Flood Warning | LOX | San Luis Obispo, Santa Barbara | 99 min |
| May 28, 4:32 PM PDT | Flash Flood Warning | REV | Lassen | 118 min |
| Jun 3, 5:05 PM PDT | Flash Flood Warning | EKA | Humboldt, Trinity | 25 min |
| Jul 20, 1:52 PM PDT | Flash Flood Warning | VEF | San Bernardino | 113 min |
| Jul 20, 2:44 PM PDT | Flash Flood Warning | VEF | Inyo | 90 min |
| Jul 20, 3:39 PM PDT | Flash Flood Warning | SGX | San Diego | 111 min |
| Jul 20, 5:52 PM PDT | Flash Flood Warning | VEF | Inyo | 57 min |
| Jul 20, 6:10 PM PDT | Flash Flood Warning | VEF | Inyo, San Bernardino | 53 min |
| Jul 20, 6:43 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 20, 8:26 PM PDT | Flash Flood Warning | VEF | Inyo | 94 min |
| Jul 25, 2:29 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 25, 3:30 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 28, 4:07 PM PDT | Flash Flood Warning | REV | Alpine, Mono | 113 min |
| Jul 30, 5:27 PM PDT | Flash Flood Warning | REV | Lassen, Plumas | 89 min |
| Aug 22, 5:12 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 23, 1:16 PM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
| Aug 23, 1:27 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 23, 4:12 PM PDT | Flash Flood Warning | LOX | Ventura | 63 min |
| Aug 23, 4:17 PM PDT | Flash Flood Warning | SGX | San Diego | 88 min |
| Sep 2, 2:11 PM PDT | Flash Flood Warning | SGX | Riverside | 49 min |
| Sep 2, 3:24 PM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 51 min |
| Sep 2, 3:33 PM PDT | Flash Flood Warning | SGX | San Diego | 65 min |
| Sep 4, 7:05 PM PDT | Flash Flood Warning | VEF | San Bernardino | 55 min |
| Sep 4, 7:28 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 4, 9:42 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 5, 5:25 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Oct 13, 7:07 AM PDT | Flash Flood Warning | MTR | Santa Cruz | 53 min |
| Oct 13, 7:58 AM PDT | Flash Flood Warning | MTR | Santa Cruz | 4 hr |
| Oct 13, 8:42 AM PDT | Flash Flood Warning | MTR | Monterey | 3 hr |
| Oct 13, 2:41 PM PDT | Flash Flood Warning | MTR | Santa Cruz | 3 hr |
| Oct 13, 2:44 PM PDT | Flash Flood Warning | MTR | Monterey | 6 hr |
| Oct 13, 7:00 PM PDT | Flash Flood Warning | MTR | Santa Cruz | 2 hr |
| Oct 14, 1:35 AM PDT | Flash Flood Warning | LOX | Santa Barbara | 3 hr |
| Oct 14, 3:04 AM PDT | Flash Flood Warning | HNX | Fresno | 6 hr |
| Dec 12, 4:11 PM PST | Flash Flood Warning | LOX | Los Angeles | 2 hr |
| Dec 12, 6:12 PM PST | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Dec 13, 12:55 AM PST | Flash Flood Warning | LOX | Los Angeles | 4 hr |
| Dec 13, 1:19 AM PST | Flash Flood Warning | SGX | San Diego | 109 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County11
- Inyo County8
- Monterey County6
- San Diego County5
- Los Angeles County4
- Santa Cruz County4
- Santa Barbara County3
- Plumas County2
- Mono County2
- Alpine County2
- Lassen County2
- Riverside County2
- Butte County1
- Tehama County1
- Tuolumne County1
- Amador County1
- El Dorado County1
- San Luis Obispo County1
- Humboldt County1
- Trinity County1
- Ventura County1
- Fresno County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.