Alert archive / California / Flash Flood Warnings
Flash Flood Warnings in California, 2011
122 flash flood warnings in 2011. 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 2011. Tap one for its archive.
- Flash Flood Warnings
- 122
- Busiest month
- July67 flash flood warnings
- Busiest day
- July 6, 201120 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 17, 10:24 AM PST | Flash Flood Warning | MTR | Sonoma | 106 min |
| Mar 20, 10:03 AM PDT | Flash Flood Warning | LOX | Santa Barbara | 3 hr |
| Mar 20, 3:00 PM PDT | Flash Flood Warning | LOX | Ventura | 3 hr |
| Mar 20, 5:47 PM PDT | Flash Flood Warning | LOX | Los Angeles | 118 min |
| Mar 20, 7:33 PM PDT | Flash Flood Warning | LOX | Los Angeles | 87 min |
| Mar 24, 3:08 PM PDT | Flash Flood Warning | MTR | Santa Cruz | 3 hr |
| Mar 24, 4:04 PM PDT | Flash Flood Warning | MTR | Santa Cruz | 56 min |
| Mar 24, 5:03 PM PDT | Flash Flood Warning | MTR | San Mateo | 2 hr |
| Mar 24, 5:27 PM PDT | Flash Flood Warning | MTR | Monterey | 3 hr |
| Jul 4, 12:43 AM PDT | Flash Flood Warning | VEF | San Bernardino | 62 min |
| Jul 4, 3:22 PM PDT | Flash Flood Warning | LOX | Ventura | 3 hr |
| Jul 4, 3:57 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Jul 4, 4:25 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Jul 4, 4:48 PM PDT | Flash Flood Warning | HNX | Kern | 117 min |
| Jul 4, 5:46 PM PDT | Flash Flood Warning | VEF | Inyo | 119 min |
| Jul 4, 6:52 PM PDT | Flash Flood Warning | VEF | Inyo | 113 min |
| Jul 4, 6:58 PM PDT | Flash Flood Warning | SGX | San Bernardino | 75 min |
| Jul 5, 1:10 PM PDT | Flash Flood Warning | LOX | Ventura | 110 min |
| Jul 5, 1:37 PM PDT | Flash Flood Warning | VEF | San Bernardino | 113 min |
| Jul 5, 1:48 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 5, 5:14 PM PDT | Flash Flood Warning | LOX | Los Angeles | 2 hr |
| Jul 5, 5:42 PM PDT | Flash Flood Warning | HNX | Kern | 3 hr |
| Jul 5, 11:49 PM PDT | Flash Flood Warning | VEF | San Bernardino | 116 min |
| Jul 6, 12:15 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 6, 12:05 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Jul 6, 12:52 PM PDT | Flash Flood Warning | SGX | San Bernardino | 100 min |
| Jul 6, 12:55 PM PDT | Flash Flood Warning | SGX | San Diego | 50 min |
| Jul 6, 1:04 PM PDT | Flash Flood Warning | HNX | Tulare | 3 hr |
| Jul 6, 1:12 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 6, 1:26 PM PDT | Flash Flood Warning | REV | Alpine | 3 hr |
| Jul 6, 1:28 PM PDT | Flash Flood Warning | LOX | Ventura | 3 hr |
| Jul 6, 1:29 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 6, 1:31 PM PDT | Flash Flood Warning | SGX | Riverside, San Diego | 59 min |
| Jul 6, 1:48 PM PDT | Flash Flood Warning | SGX | San Bernardino | 87 min |
| Jul 6, 1:55 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Jul 6, 3:56 PM PDT | Flash Flood Warning | HNX | Kern | 2 hr |
| Jul 6, 4:07 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 6, 4:12 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 6, 4:40 PM PDT | Flash Flood Warning | PSR | Imperial | 65 min |
| Jul 6, 4:55 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 6, 6:40 PM PDT | Flash Flood Warning | REV | Lassen | 80 min |
| Jul 7, 2:49 PM PDT | Flash Flood Warning | PSR | Riverside, San Bernardino | 116 min |
| Jul 7, 3:25 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 7, 3:34 PM PDT | Flash Flood Warning | SGX | San Diego | 59 min |
| Jul 7, 3:45 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 7, 3:49 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 7, 5:57 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 8, 2:26 PM PDT | Flash Flood Warning | VEF | San Bernardino | 79 min |
| Jul 8, 3:10 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 8, 3:35 PM PDT | Flash Flood Warning | VEF | San Bernardino | 66 min |
| Jul 9, 4:25 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 10, 5:19 PM PDT | Flash Flood Warning | VEF | San Bernardino | 100 min |
| Jul 29, 2:55 PM PDT | Flash Flood Warning | VEF | Inyo | 106 min |
| Jul 29, 4:37 PM PDT | Flash Flood Warning | VEF | San Bernardino | 113 min |
| Jul 29, 4:40 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 29, 4:43 PM PDT | Flash Flood Warning | REV | Mono | 3 hr |
| Jul 29, 6:07 PM PDT | Flash Flood Warning | VEF | Inyo | 53 min |
| Jul 29, 7:02 PM PDT | Flash Flood Warning | VEF | Inyo | 118 min |
| Jul 29, 8:53 PM PDT | Flash Flood Warning | VEF | Inyo | 82 min |
| Jul 30, 12:33 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Jul 30, 12:57 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 30, 1:39 PM PDT | Flash Flood Warning | SGX | San Bernardino | 96 min |
| Jul 30, 2:07 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 30, 2:20 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 30, 2:30 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Jul 30, 3:57 PM PDT | Flash Flood Warning | LOX | Los Angeles | 48 min |
| Jul 30, 4:27 PM PDT | Flash Flood Warning | REV | Alpine | 96 min |
| Jul 30, 4:29 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Jul 30, 4:35 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 30, 5:21 PM PDT | Flash Flood Warning | VEF | Inyo | 74 min |
| Jul 31, 12:31 PM PDT | Flash Flood Warning | SGX | San Diego | 119 min |
| Jul 31, 1:30 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Jul 31, 2:34 PM PDT | Flash Flood Warning | VEF | Inyo | 56 min |
| Jul 31, 3:33 PM PDT | Flash Flood Warning | SGX | San Diego | 117 min |
| Jul 31, 3:59 PM PDT | Flash Flood Warning | SGX | San Bernardino | 100 min |
| Jul 31, 4:37 PM PDT | Flash Flood Warning | SGX | San Diego | 113 min |
| Aug 1, 1:59 PM PDT | Flash Flood Warning | SGX | San Diego | 91 min |
| Aug 1, 2:09 PM PDT | Flash Flood Warning | SGX | Riverside | 81 min |
| Aug 1, 3:14 PM PDT | Flash Flood Warning | SGX | San Bernardino | 61 min |
| Aug 1, 3:47 PM PDT | Flash Flood Warning | VEF | San Bernardino | 67 min |
| Aug 1, 4:43 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Aug 1, 6:45 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 2, 4:29 PM PDT | Flash Flood Warning | SGX | San Diego | 81 min |
| Aug 13, 3:11 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 27, 12:49 PM PDT | Flash Flood Warning | SGX | San Bernardino | 86 min |
| Aug 27, 2:01 PM PDT | Flash Flood Warning | VEF | San Bernardino | 4 hr |
| Aug 27, 2:24 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Aug 27, 2:28 PM PDT | Flash Flood Warning | SGX | Riverside, San Diego | 92 min |
| Aug 27, 4:31 PM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
| Aug 27, 5:40 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 28, 1:39 PM PDT | Flash Flood Warning | SGX | Riverside, San Diego | 81 min |
| Aug 28, 2:37 PM PDT | Flash Flood Warning | VEF | San Bernardino | 113 min |
| Aug 28, 3:01 PM PDT | Flash Flood Warning | SGX | San Bernardino | 89 min |
| Aug 28, 3:33 PM PDT | Flash Flood Warning | SGX | San Bernardino | 73 min |
| Aug 28, 3:47 PM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 66 min |
| Aug 28, 4:28 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 9, 8:31 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 10, 2:51 PM PDT | Flash Flood Warning | LOX | Los Angeles | 24 min |
| Sep 10, 3:17 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 10, 3:30 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 10, 4:34 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Sep 10, 4:41 PM PDT | Flash Flood Warning | MTR | San Benito | 34 min |
| Sep 10, 5:04 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 10, 6:44 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Sep 11, 4:54 PM PDT | Flash Flood Warning | REV | Placer | 109 min |
| Sep 12, 5:58 PM PDT | Flash Flood Warning | REV | Lassen | 88 min |
| Sep 13, 6:31 AM PDT | Flash Flood Warning | VEF | San Bernardino | 86 min |
| Sep 13, 7:10 AM PDT | Flash Flood Warning | PSR | Riverside | 110 min |
| Sep 13, 8:01 AM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
| Sep 13, 9:09 AM PDT | Flash Flood Warning | VEF | San Bernardino | 111 min |
| Sep 13, 9:56 AM PDT | Flash Flood Warning | VEF | San Bernardino | 83 min |
| Sep 13, 10:22 AM PDT | Flash Flood Warning | VEF | San Bernardino | 113 min |
| Sep 13, 11:09 AM PDT | Flash Flood Warning | VEF | San Bernardino | 27 min |
| Sep 13, 12:00 PM PDT | Flash Flood Warning | PSR | Riverside, San Bernardino | 3 hr |
| Sep 13, 1:08 PM PDT | Flash Flood Warning | SGX | San Bernardino | 112 min |
| Sep 13, 3:00 PM PDT | Flash Flood Warning | PSR | Riverside | 106 min |
| Sep 13, 3:34 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 13, 4:08 PM PDT | Flash Flood Warning | LOX | Santa Barbara, Ventura | 3 hr |
| Sep 13, 4:40 PM PDT | Flash Flood Warning | LOX | San Luis Obispo, Santa Barbara | 3 hr |
| Sep 13, 5:33 PM PDT | Flash Flood Warning | LOX | San Luis Obispo | 3 hr |
| Sep 13, 5:45 PM PDT | Flash Flood Warning | LOX | Santa Barbara | 3 hr |
| Sep 14, 4:03 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County48
- Inyo County19
- Los Angeles County15
- San Diego County11
- Riverside County9
- Ventura County5
- Santa Barbara County4
- Kern County3
- Santa Cruz County2
- Alpine County2
- Lassen County2
- San Luis Obispo County2
- Sonoma County1
- San Mateo County1
- Monterey County1
- Tulare County1
- Imperial County1
- Mono County1
- San Benito County1
- Placer County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.