Alert archive / California / Flash Flood Warnings
Flash Flood Warnings in California, 2012
183 flash flood 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Flash Flood Warnings
- 183
- Busiest month
- August69 flash flood warnings
- Busiest day
- July 14, 201217 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 |
|---|---|---|---|---|
| May 3, 8:13 PM PDT | Flash Flood Warning | STO | Tehama | 107 min |
| Jul 13, 5:23 AM PDT | Flash Flood Warning | SGX | San Bernardino | 116 min |
| Jul 13, 1:22 PM PDT | Flash Flood Warning | VEF | Inyo | 113 min |
| Jul 13, 2:29 PM PDT | Flash Flood Warning | SGX | San Bernardino | 75 min |
| Jul 13, 2:30 PM PDT | Flash Flood Warning | PSR | Imperial | 2 hr |
| Jul 13, 2:43 PM PDT | Flash Flood Warning | SGX | San Bernardino | 61 min |
| Jul 13, 2:55 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 13, 3:21 PM PDT | Flash Flood Warning | PSR | Imperial | 114 min |
| Jul 13, 3:51 PM PDT | Flash Flood Warning | VEF | San Bernardino | 114 min |
| Jul 13, 3:53 PM PDT | Flash Flood Warning | HNX | Kern | 112 min |
| Jul 13, 4:09 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 13, 4:16 PM PDT | Flash Flood Warning | VEF | Inyo | 119 min |
| Jul 13, 4:27 PM PDT | Flash Flood Warning | PSR | Imperial | 2 hr |
| Jul 13, 5:35 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 13, 5:55 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 13, 6:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 13, 6:08 PM PDT | Flash Flood Warning | PSR | Riverside | 112 min |
| Jul 13, 6:54 PM PDT | Flash Flood Warning | PSR | Imperial | 111 min |
| Jul 13, 7:20 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 13, 8:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 61 min |
| Jul 13, 8:38 PM PDT | Flash Flood Warning | PSR | Imperial | 112 min |
| Jul 13, 8:50 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 13, 9:39 PM PDT | Flash Flood Warning | VEF | San Bernardino | 81 min |
| Jul 13, 11:46 PM PDT | Flash Flood Warning | VEF | San Bernardino | 97 min |
| Jul 14, 12:19 AM PDT | Flash Flood Warning | VEF | Inyo | 86 min |
| Jul 14, 1:19 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 min |
| Jul 14, 1:36 PM PDT | Flash Flood Warning | VEF | San Bernardino | 114 min |
| Jul 14, 3:43 PM PDT | Flash Flood Warning | SGX | Riverside | 80 min |
| Jul 14, 4:33 PM PDT | Flash Flood Warning | VEF | San Bernardino | 117 min |
| Jul 14, 4:38 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 14, 7:25 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 14, 9:16 PM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
| Jul 15, 12:29 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 15, 11:52 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 15, 11:59 AM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 22, 2:50 PM PDT | Flash Flood Warning | VEF | Inyo | 60 min |
| Jul 23, 11:47 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 23, 12:05 PM PDT | Flash Flood Warning | VEF | Inyo | 115 min |
| Jul 23, 12:18 PM PDT | Flash Flood Warning | VEF | San Bernardino | 117 min |
| Jul 30, 11:53 AM PDT | Flash Flood Warning | VEF | San Bernardino | 112 min |
| Jul 30, 12:38 PM PDT | Flash Flood Warning | VEF | San Bernardino | 112 min |
| Jul 30, 1:24 PM PDT | Flash Flood Warning | VEF | San Bernardino | 111 min |
| Jul 30, 2:11 PM PDT | Flash Flood Warning | SGX | San Diego | 64 min |
| Jul 30, 2:54 PM PDT | Flash Flood Warning | SGX | San Diego | 111 min |
| Jul 30, 3:12 PM PDT | Flash Flood Warning | PSR | Imperial | 3 hr |
| Jul 30, 3:59 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Jul 30, 4:38 PM PDT | Flash Flood Warning | PSR | Imperial | 3 hr |
| Jul 31, 4:58 AM PDT | Flash Flood Warning | PSR | Imperial | 3 hr |
| Jul 31, 10:00 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 31, 10:08 AM PDT | Flash Flood Warning | VEF | San Bernardino | 112 min |
| Jul 31, 10:16 AM PDT | Flash Flood Warning | PSR | Imperial, Riverside, San Bernardino | 3 hr |
| Jul 31, 10:38 AM PDT | Flash Flood Warning | VEF | San Bernardino | 94 min |
| Jul 31, 11:51 AM PDT | Flash Flood Warning | SGX | Riverside | 105 min |
| Jul 31, 11:58 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 31, 12:03 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 31, 1:23 PM PDT | Flash Flood Warning | SGX | San Diego | 82 min |
| Jul 31, 1:30 PM PDT | Flash Flood Warning | VEF | San Bernardino | 49 min |
| Jul 31, 1:31 PM PDT | Flash Flood Warning | PSR | San Bernardino | 119 min |
| Jul 31, 2:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 31, 2:26 PM PDT | Flash Flood Warning | SGX | Riverside | 109 min |
| Jul 31, 3:05 PM PDT | Flash Flood Warning | VEF | San Bernardino | 42 min |
| Jul 31, 3:25 PM PDT | Flash Flood Warning | VEF | San Bernardino | 65 min |
| Jul 31, 10:51 PM PDT | Flash Flood Warning | VEF | Inyo | 114 min |
| Jul 31, 11:31 PM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
| Aug 2, 5:23 PM PDT | Flash Flood Warning | VEF | Inyo | 112 min |
| Aug 2, 8:44 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Aug 3, 6:29 PM PDT | Flash Flood Warning | VEF | Inyo | 5 hr |
| Aug 3, 7:13 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Aug 3, 8:42 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Aug 7, 12:25 PM PDT | Flash Flood Warning | SGX | San Diego | 78 min |
| Aug 11, 1:23 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Aug 11, 2:49 PM PDT | Flash Flood Warning | VEF | San Bernardino | 116 min |
| Aug 12, 2:46 PM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
| Aug 12, 2:55 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Aug 12, 3:18 PM PDT | Flash Flood Warning | VEF | San Bernardino | 117 min |
| Aug 12, 5:53 PM PDT | Flash Flood Warning | SGX | San Diego | 3 hr |
| Aug 13, 12:19 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Aug 13, 12:35 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Aug 13, 1:31 PM PDT | Flash Flood Warning | SGX | Riverside, San Diego | 2 hr |
| Aug 13, 1:37 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Aug 14, 4:26 PM PDT | Flash Flood Warning | REV | Nevada, Placer | 2 hr |
| Aug 15, 5:04 PM PDT | Flash Flood Warning | REV | Nevada | 116 min |
| Aug 16, 12:16 PM PDT | Flash Flood Warning | SGX | San Diego | 94 min |
| Aug 16, 1:16 PM PDT | Flash Flood Warning | SGX | San Diego | 91 min |
| Aug 16, 3:13 PM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 54 min |
| Aug 16, 4:06 PM PDT | Flash Flood Warning | VEF | San Bernardino | 114 min |
| Aug 17, 12:14 PM PDT | Flash Flood Warning | SGX | Riverside | 61 min |
| Aug 17, 12:28 PM PDT | Flash Flood Warning | SGX | Riverside, San Diego | 2 hr |
| Aug 17, 1:07 PM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 3 hr |
| Aug 17, 1:40 PM PDT | Flash Flood Warning | SGX | San Diego | 95 min |
| Aug 17, 2:19 PM PDT | Flash Flood Warning | SGX | Riverside | 46 min |
| Aug 17, 2:32 PM PDT | Flash Flood Warning | PSR | Riverside, San Bernardino | 118 min |
| Aug 17, 2:48 PM PDT | Flash Flood Warning | VEF | San Bernardino | 102 min |
| Aug 18, 4:47 PM PDT | Flash Flood Warning | VEF | Inyo | 118 min |
| Aug 19, 3:52 PM PDT | Flash Flood Warning | SGX | Riverside | 2 hr |
| Aug 19, 4:16 PM PDT | Flash Flood Warning | VEF | San Bernardino | 59 min |
| Aug 20, 7:27 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 21, 2:08 PM PDT | Flash Flood Warning | SGX | San Diego | 112 min |
| Aug 22, 9:34 AM PDT | Flash Flood Warning | VEF | Inyo, San Bernardino | 116 min |
| Aug 22, 9:45 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 22, 10:45 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 22, 10:49 AM PDT | Flash Flood Warning | VEF | San Bernardino | 116 min |
| Aug 22, 11:30 AM PDT | Flash Flood Warning | VEF | San Bernardino | 56 min |
| Aug 22, 11:50 AM PDT | Flash Flood Warning | VEF | San Bernardino | 54 min |
| Aug 22, 11:58 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 22, 1:03 PM PDT | Flash Flood Warning | VEF | San Bernardino | 87 min |
| Aug 22, 1:42 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 1:47 PM PDT | Flash Flood Warning | VEF | Inyo | 36 min |
| Aug 22, 1:50 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Aug 22, 1:55 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 1:59 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Aug 22, 2:57 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Aug 22, 3:36 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Aug 22, 3:55 PM PDT | Flash Flood Warning | VEF | Inyo | 65 min |
| Aug 22, 5:25 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Aug 22, 6:42 PM PDT | Flash Flood Warning | PSR | Riverside | 70 min |
| Aug 22, 7:29 PM PDT | Flash Flood Warning | VEF | San Bernardino | 111 min |
| Aug 29, 9:09 PM PDT | Flash Flood Warning | PSR | Riverside | 105 min |
| Aug 30, 11:25 AM PDT | Flash Flood Warning | PSR | Imperial | 2 hr |
| Aug 30, 11:57 AM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 2 hr |
| Aug 30, 12:11 PM PDT | Flash Flood Warning | SGX | San Diego | 3 hr |
| Aug 30, 12:45 PM PDT | Flash Flood Warning | SGX | Riverside | 3 hr |
| Aug 30, 1:05 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Aug 30, 1:58 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Aug 30, 2:31 PM PDT | Flash Flood Warning | SGX | Riverside | 119 min |
| Aug 30, 3:10 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Aug 30, 4:01 PM PDT | Flash Flood Warning | LOX | Los Angeles | 2 hr |
| Aug 30, 4:28 PM PDT | Flash Flood Warning | VEF | San Bernardino | 89 min |
| Aug 30, 4:29 PM PDT | Flash Flood Warning | HNX | Kern | 96 min |
| Aug 30, 5:20 PM PDT | Flash Flood Warning | VEF | Inyo | 115 min |
| Aug 31, 3:56 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 3, 4:23 PM PDT | Flash Flood Warning | PSR | Riverside | 112 min |
| Sep 3, 7:42 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 4, 1:55 PM PDT | Flash Flood Warning | PSR | Riverside, San Bernardino | 95 min |
| Sep 4, 2:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 65 min |
| Sep 4, 3:44 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 4, 3:59 PM PDT | Flash Flood Warning | SGX | San Diego | 81 min |
| Sep 4, 4:09 PM PDT | Flash Flood Warning | PSR | Imperial | 92 min |
| Sep 5, 5:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 9, 2:44 PM PDT | Flash Flood Warning | SGX | Orange, Riverside | 3 hr |
| Sep 9, 5:22 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 9, 5:30 PM PDT | Flash Flood Warning | SGX | San Diego | 104 min |
| Sep 9, 8:10 PM PDT | Flash Flood Warning | PSR | Imperial | 3 hr |
| Sep 10, 1:29 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Sep 10, 2:38 PM PDT | Flash Flood Warning | LOX | Ventura | 3 hr |
| Sep 10, 2:42 PM PDT | Flash Flood Warning | SGX | San Diego | 93 min |
| Sep 10, 2:59 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Sep 10, 3:40 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 10, 6:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 11, 1:20 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Sep 11, 2:03 PM PDT | Flash Flood Warning | VEF | Inyo | 117 min |
| Sep 11, 3:57 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 11, 4:02 PM PDT | Flash Flood Warning | VEF | Inyo | 57 min |
| Sep 11, 5:43 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 11, 6:41 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Sep 11, 7:54 PM PDT | Flash Flood Warning | VEF | Inyo | 71 min |
| Sep 11, 11:02 PM PDT | Flash Flood Warning | VEF | San Bernardino | 118 min |
| Oct 11, 8:39 AM PDT | Flash Flood Warning | VEF | San Bernardino | 111 min |
| Oct 11, 1:02 PM PDT | Flash Flood Warning | LOX | Ventura | 3 hr |
| Oct 11, 2:55 PM PDT | Flash Flood Warning | LOX | Los Angeles | 98 min |
| Oct 11, 4:37 PM PDT | Flash Flood Warning | LOX | Los Angeles | 113 min |
| Oct 11, 5:02 PM PDT | Flash Flood Warning | VEF | Inyo | 88 min |
| Oct 11, 5:25 PM PDT | Flash Flood Warning | VEF | Inyo | 95 min |
| Oct 11, 7:28 PM PDT | Flash Flood Warning | VEF | Inyo | 92 min |
| Oct 11, 8:35 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Oct 12, 12:03 AM PDT | Flash Flood Warning | VEF | Inyo | 87 min |
| Nov 30, 4:16 AM PST | Flash Flood Warning | MTR | Sonoma | 119 min |
| Nov 30, 6:22 AM PST | Flash Flood Warning | MTR | Sonoma | 3 hr |
| Nov 30, 9:29 AM PST | Flash Flood Warning | MTR | Monterey | 61 min |
| Nov 30, 10:38 AM PST | Flash Flood Warning | MTR | Monterey | 82 min |
| Nov 30, 11:59 AM PST | Flash Flood Warning | MTR | Monterey | 3 hr |
| Dec 2, 6:35 AM PST | Flash Flood Warning | MTR | Napa, Sonoma | 85 min |
| Dec 2, 7:41 AM PST | Flash Flood Warning | MTR | Sonoma | 64 min |
| Dec 2, 8:15 AM PST | Flash Flood Warning | MTR | Santa Clara, Santa Cruz | 2 hr |
| Dec 2, 8:42 AM PST | Flash Flood Warning | MTR | Marin | 93 min |
| Dec 2, 8:47 AM PST | Flash Flood Warning | MTR | Sonoma | 88 min |
| Dec 23, 8:55 AM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Dec 23, 1:41 PM PST | Flash Flood Warning | MTR | Sonoma | 3 hr |
| Dec 23, 2:38 PM PST | Flash Flood Warning | MTR | Santa Cruz | 5 hr |
| Dec 23, 4:43 PM PST | Flash Flood Warning | MTR | Santa Cruz | 2 hr |
| Dec 23, 5:05 PM PST | Flash Flood Warning | MTR | San Mateo, Santa Cruz | 115 min |
| Dec 23, 7:01 PM PST | Flash Flood Warning | MTR | Santa Cruz | 108 min |
| Dec 23, 7:04 PM PST | Flash Flood Warning | MTR | San Mateo, Santa Cruz | 86 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County80
- Inyo County30
- Riverside County21
- San Diego County21
- Imperial County12
- Sonoma County7
- Santa Cruz County6
- Los Angeles County5
- Monterey County3
- Kern County2
- Nevada County2
- Ventura County2
- San Mateo County2
- Tehama County1
- Placer County1
- Orange County1
- Napa County1
- Santa Clara County1
- Marin 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.