Alert archive / California / Flash Flood Warnings
Flash Flood Warnings in California, 2016
124 flash flood warnings in 2016. 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 2016. Tap one for its archive.
- Flash Flood Warnings
- 124
- Busiest month
- August30 flash flood warnings
- Busiest day
- December 16, 201612 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 |
|---|---|---|---|---|
| Jan 5, 9:32 AM PST | Flash Flood Warning | LOX | Ventura | 3 hr |
| Jan 5, 11:44 AM PST | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Jan 5, 12:06 PM PST | Flash Flood Warning | SGX | Orange | 4 hr |
| Jan 5, 1:46 PM PST | Flash Flood Warning | SGX | Riverside, San Diego | 3 hr |
| Jan 5, 3:14 PM PST | Flash Flood Warning | SGX | San Diego | 3 hr |
| Jan 5, 4:11 PM PST | Flash Flood Warning | SGX | San Diego | 3 hr |
| Jan 6, 5:33 AM PST | Flash Flood Warning | MTR | Monterey | 57 min |
| Jan 6, 8:07 AM PST | Flash Flood Warning | LOX | Ventura | 3 hr |
| Jan 6, 10:19 AM PST | Flash Flood Warning | LOX | Ventura | 3 hr |
| Jan 6, 11:06 AM PST | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Jan 6, 12:10 PM PST | Flash Flood Warning | SGX | Orange | 5 hr |
| Jan 6, 12:38 PM PST | Flash Flood Warning | LOX | Los Angeles | 6 hr |
| Jan 6, 1:34 PM PST | Flash Flood Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 3 hr |
| Jan 6, 3:12 PM PST | Flash Flood Warning | SGX | San Diego | 3 hr |
| Jan 18, 5:20 AM PST | Flash Flood Warning | STO | Amador, Calaveras | 5 hr |
| Jan 31, 9:16 AM PST | Flash Flood Warning | LOX | San Luis Obispo | 3 hr |
| Jan 31, 9:18 AM PST | Flash Flood Warning | LOX | San Luis Obispo | 3 hr |
| Jan 31, 10:57 AM PST | Flash Flood Warning | LOX | Santa Barbara, Ventura | 3 hr |
| Jan 31, 11:34 AM PST | Flash Flood Warning | LOX | Santa Barbara, Ventura | 3 hr |
| Jan 31, 12:54 PM PST | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Jan 31, 1:59 PM PST | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Mar 5, 7:53 PM PST | Flash Flood Warning | STO | Colusa, Lake, Yolo | 6 hr |
| Mar 5, 9:59 PM PST | Flash Flood Warning | MTR | Napa | 3 hr |
| Mar 5, 10:27 PM PST | Flash Flood Warning | MTR | Santa Cruz | 4 hr |
| Mar 5, 10:41 PM PST | Flash Flood Warning | MTR | Alameda | 4 hr |
| Mar 5, 10:50 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 5, 11:46 PM PST | Flash Flood Warning | MTR | Santa Cruz | 3 hr |
| Mar 5, 11:57 PM PST | Flash Flood Warning | STO | Amador, Calaveras | 6 hr |
| Mar 6, 12:12 AM PST | Flash Flood Warning | MTR | Santa Cruz | 108 min |
| Mar 6, 12:42 AM PST | Flash Flood Warning | LOX | San Luis Obispo | 2 hr |
| Mar 7, 4:44 AM PST | Flash Flood Warning | LOX | Ventura | 91 min |
| Mar 10, 12:02 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 10, 3:57 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 10, 7:54 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 10, 8:15 PM PST | Flash Flood Warning | MTR | Sonoma | 4 hr |
| Mar 11, 12:15 AM PST | Flash Flood Warning | MTR | Sonoma | 3 hr |
| Mar 11, 8:50 AM PST | Flash Flood Warning | MTR | Monterey | 3 hr |
| Mar 11, 11:42 AM PST | Flash Flood Warning | LOX | Ventura | 108 min |
| Apr 8, 5:41 PM PDT | Flash Flood Warning | SGX | San Bernardino | 109 min |
| Apr 8, 6:30 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Apr 11, 3:53 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Apr 11, 5:40 PM PDT | Flash Flood Warning | LOX | Los Angeles | 110 min |
| May 5, 5:27 PM PDT | Flash Flood Warning | LOX | San Luis Obispo, Santa Barbara | 3 hr |
| May 6, 3:18 PM PDT | Flash Flood Warning | LOX | Santa Barbara | 3 hr |
| May 6, 3:56 PM PDT | Flash Flood Warning | HNX | Fresno, Kings | 3 hr |
| May 6, 4:26 PM PDT | Flash Flood Warning | HNX | Fresno | 94 min |
| May 6, 4:45 PM PDT | Flash Flood Warning | LOX | San Luis Obispo | 2 hr |
| May 6, 4:56 PM PDT | Flash Flood Warning | HNX | Kern | 94 min |
| May 6, 5:01 PM PDT | Flash Flood Warning | HNX | Kern, Kings | 119 min |
| May 6, 5:18 PM PDT | Flash Flood Warning | SGX | San Bernardino | 117 min |
| May 6, 5:43 PM PDT | Flash Flood Warning | HNX | Fresno | 92 min |
| May 6, 6:43 PM PDT | Flash Flood Warning | HNX | Kern | 92 min |
| Jun 5, 6:53 PM PDT | Flash Flood Warning | MFR | Siskiyou | 52 min |
| Jun 29, 5:56 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jun 30, 5:54 PM PDT | Flash Flood Warning | VEF | San Bernardino | 6 hr |
| Jun 30, 10:32 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jun 30, 11:08 PM PDT | Flash Flood Warning | VEF | Inyo | 4 hr |
| Jun 30, 11:49 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 1, 1:41 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 1, 2:06 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 1, 3:36 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 1, 3:01 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Jul 1, 4:24 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 1, 5:11 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Jul 1, 5:26 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 1, 8:41 PM PDT | Flash Flood Warning | VEF | Inyo | 4 hr |
| Jul 2, 4:08 PM PDT | Flash Flood Warning | REV | Mono | 3 hr |
| Jul 2, 6:26 PM PDT | Flash Flood Warning | REV | Mono | 3 hr |
| Jul 28, 4:59 PM PDT | Flash Flood Warning | REV | Mono | 3 hr |
| Aug 1, 2:29 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 1, 2:47 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 1, 3:44 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 1, 4:51 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 2, 2:41 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 2, 3:11 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 2, 2:38 PM PDT | Flash Flood Warning | VEF | San Bernardino | 6 hr |
| Aug 3, 4:53 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 3, 6:20 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 3, 8:40 PM PDT | Flash Flood Warning | VEF | San Bernardino | 6 hr |
| Aug 4, 12:37 AM PDT | Flash Flood Warning | VEF | San Bernardino | 113 min |
| Aug 4, 2:24 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 4, 1:49 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 4, 2:22 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Aug 4, 3:25 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 4, 5:03 PM PDT | Flash Flood Warning | VEF | San Bernardino | 6 hr |
| Aug 18, 5:26 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 18, 7:21 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 18, 9:06 PM PDT | Flash Flood Warning | VEF | San Bernardino | 114 min |
| Aug 19, 2:44 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 5:45 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 6:20 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 8:31 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 8:46 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 26, 9:26 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 26, 9:44 PM PDT | Flash Flood Warning | VEF | Inyo, San Bernardino | 3 hr |
| Aug 26, 10:01 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 26, 10:35 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 27, 5:06 AM PDT | Flash Flood Warning | VEF | San Bernardino | 4 hr |
| Aug 27, 4:04 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Oct 15, 5:47 PM PDT | Flash Flood Warning | REV | El Dorado | 6 hr |
| Oct 16, 9:58 AM PDT | Flash Flood Warning | MTR | Monterey | 8 hr |
| Oct 16, 10:05 AM PDT | Flash Flood Warning | MTR | Santa Clara, Santa Cruz | 8 hr |
| Oct 16, 11:48 AM PDT | Flash Flood Warning | REV | El Dorado | 6 hr |
| Oct 16, 5:59 PM PDT | Flash Flood Warning | STO | Amador, Calaveras | 6 hr |
| Oct 28, 3:18 AM PDT | Flash Flood Warning | LOX | Santa Barbara | 87 min |
| Nov 21, 12:16 AM PST | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Nov 21, 1:38 AM PST | Flash Flood Warning | LOX | Los Angeles | 52 min |
| Dec 15, 12:57 PM PST | Flash Flood Warning | MTR | Marin, Sonoma | 4 hr |
| Dec 15, 3:38 PM PST | Flash Flood Warning | MTR | Napa | 3 hr |
| Dec 15, 4:13 PM PST | Flash Flood Warning | MTR | Marin | 3 hr |
| Dec 15, 5:08 PM PST | Flash Flood Warning | MTR | Marin, Sonoma | 3 hr |
| Dec 15, 5:29 PM PST | Flash Flood Warning | MTR | Santa Clara | 46 min |
| Dec 15, 6:12 PM PST | Flash Flood Warning | MTR | Santa Clara | 3 hr |
| Dec 15, 6:16 PM PST | Flash Flood Warning | MTR | Monterey | 6 hr |
| Dec 15, 6:38 PM PST | Flash Flood Warning | MTR | San Mateo, Santa Clara, Santa Cruz | 4 hr |
| Dec 15, 8:40 PM PST | Flash Flood Warning | LOX | San Luis Obispo | 5 hr |
| Dec 15, 10:46 PM PST | Flash Flood Warning | HNX | Kern, Tulare | 89 min |
| Dec 15, 11:09 PM PST | Flash Flood Warning | HNX | Fresno, Tulare | 96 min |
| Dec 15, 11:55 PM PST | Flash Flood Warning | HNX | Tulare | 95 min |
| Dec 16, 12:13 AM PST | Flash Flood Warning | HNX | Kern, Tulare | 92 min |
| Dec 16, 3:29 AM PST | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Dec 23, 4:57 PM PST | Flash Flood Warning | HNX | Kern, Tulare | 6 hr |
| Dec 23, 9:19 PM PST | Flash Flood Warning | LOX | Los Angeles | 116 min |
| Dec 23, 11:02 PM PST | Flash Flood Warning | LOX | Los Angeles | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County44
- Los Angeles County9
- Sonoma County8
- Ventura County7
- Inyo County7
- San Luis Obispo County6
- Kern County6
- San Diego County5
- Santa Barbara County5
- Santa Cruz County5
- Tulare County5
- Monterey County4
- Fresno County4
- Santa Clara County4
- Orange County3
- Amador County3
- Calaveras County3
- Mono County3
- Marin County3
- Riverside County2
- Napa County2
- Kings County2
- El Dorado County2
- Colusa County1
- Lake County1
- Yolo County1
- Alameda County1
- Siskiyou County1
- San Mateo County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.