Alert archive / California / Flood Watches
Flood Watches in California, 2022
51 flood watches in 2022. 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 flood watches reaches back to 2005.
Flood Watches by county
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Flood Watches
- 51
- Busiest month
- August14 flood watches
- Busiest day
- December 28, 20225 flood watches
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 2, 10:31 AM PST | Flood Watch | MFR | Siskiyou | 62 hr |
| Jan 3, 3:56 AM PST | Flood Watch | EKA | Del Norte, Humboldt | 16 hr |
| Jan 4, 5:21 PM PST | Flood Watch | MTR | Monterey | 5 hr |
| Jul 24, 2:11 AM PDT | Flood Watch | VEF | San Bernardino | 7 days |
| Jul 25, 12:44 PM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 5 hr |
| Jul 30, 12:30 AM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 23 hr |
| Jul 30, 12:32 AM PDT | Flood Watch | LOX | Los Angeles | 22 hr |
| Jul 30, 12:47 AM PDT | Flood Watch | VEF | San Bernardino | 22 hr |
| Jul 31, 12:15 AM PDT | Flood Watch | VEF | Inyo, San Bernardino | 46 hr |
| Jul 31, 12:35 AM PDT | Flood Watch | LOX | Los Angeles | 20 hr |
| Jul 31, 2:01 AM PDT | Flood Watch | SGX | Riverside, San Bernardino | 18 hr |
| Aug 1, 1:25 AM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 19 hr |
| Aug 3, 9:11 AM PDT | Flood Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 37 hr |
| Aug 3, 1:15 PM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 31 hr |
| Aug 3, 1:23 PM PDT | Flood Watch | VEF | Inyo, San Bernardino | 54 hr |
| Aug 4, 12:23 AM PDT | Flood Watch | REV | Mono | 43 hr |
| Aug 9, 1:56 AM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 19 hr |
| Aug 9, 2:04 AM PDT | Flood Watch | VEF | San Bernardino | 68 hr |
| Aug 9, 2:18 AM PDT | Flood Watch | PSR | Imperial, Riverside, San Bernardino | 23 hr |
| Aug 12, 12:54 AM PDT | Flood Watch | VEF | San Bernardino | 3 days |
| Aug 12, 8:56 AM PDT | Flood Watch | PSR | Imperial, Riverside, San Bernardino | 62 hr |
| Aug 13, 2:32 AM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 16 hr |
| Aug 24, 1:01 AM PDT | Flood Watch | PSR | Imperial, Riverside, San Bernardino | 24 hr |
| Aug 24, 1:52 AM PDT | Flood Watch | VEF | San Bernardino | 22 hr |
| Aug 24, 2:12 AM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 44 hr |
| Sep 7, 12:51 PM PDT | Flood Watch | PSR | Imperial, Riverside, San Bernardino | 3 days |
| Sep 7, 12:51 PM PDT | Flood Watch | VEF | San Bernardino | 13 min |
| Sep 7, 1:07 PM PDT | Flood Watch | VEF | Inyo, San Bernardino | 3 days |
| Sep 7, 1:57 PM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 3 days |
| Sep 8, 12:37 PM PDT | Flood Watch | HNX | Kern, Tulare | 36 hr |
| Sep 8, 2:05 PM PDT | Flood Watch | LOX | 58 hr | |
| Sep 11, 3:21 AM PDT | Flood Watch | LOX | San Luis Obispo, Santa Barbara | 20 hr |
| Sep 11, 7:02 AM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 15 hr |
| Sep 12, 2:43 AM PDT | Flood Watch | LOX | 19 hr | |
| Sep 12, 2:46 AM PDT | Flood Watch | SGX | Riverside, San Bernardino | 17 hr |
| Oct 11, 2:40 AM PDT | Flood Watch | LOX | Santa Barbara | 19 hr |
| Oct 14, 1:18 AM PDT | Flood Watch | VEF | San Bernardino | 48 hr |
| Oct 14, 1:23 AM PDT | Flood Watch | PSR | Imperial, Riverside, San Bernardino | 58 hr |
| Oct 14, 12:15 PM PDT | Flood Watch | SGX | Riverside, San Bernardino, San Diego | 38 hr |
| Nov 6, 12:51 PM PST | Flood Watch | LOX | Los Angeles | 53 hr |
| Nov 7, 12:48 PM PST | Flood Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 38 hr |
| Dec 9, 1:03 PM PST | Flood Watch | SGX | Riverside, San Bernardino | 53 hr |
| Dec 24, 2:17 PM PST | Flood Watch | EKA | Del Norte, Humboldt, Lake, Mendocino, Trinity | 66 hr |
| Dec 25, 1:37 PM PST | Flood Watch | MTR | Marin, Monterey, Napa, City and County of San Francisco, San Mateo, Santa Clara and 2 more | 49 hr |
| Dec 26, 7:34 PM PST | Flood Watch | HNX | Madera, Mariposa, Merced | 23 hr |
| Dec 28, 9:17 AM PST | Flood Watch | STO | 4 days | |
| Dec 28, 9:29 AM PST | Flood Watch | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 56 hr |
| Dec 28, 9:35 AM PST | Flood Watch | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 4 days |
| Dec 28, 12:56 PM PST | Flood Watch | EKA | Del Norte, Humboldt, Lake, Mendocino, Trinity | 3 days |
| Dec 28, 2:00 PM PST | Flood Watch | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 3 days |
| Dec 30, 9:11 AM PST | Flood Watch | MFR | Modoc | 24 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County29
- Riverside County19
- San Diego County11
- Imperial County5
- Del Norte County3
- Humboldt County3
- Monterey County3
- Los Angeles County3
- Inyo County3
- Mono County3
- Alpine County2
- El Dorado County2
- Nevada County2
- Placer County2
- Kern County2
- Tulare County2
- Santa Barbara County2
- Lake County2
- Mendocino County2
- Trinity County2
- Marin County2
- Napa County2
- City and County of San Francisco2
- San Mateo County2
- Santa Clara County2
- Santa Cruz County2
- Sonoma County2
- Madera County2
- Mariposa County2
- Merced County2
- Modoc County2
- Siskiyou County1
- San Luis Obispo County1
- Orange County1
- Lassen County1
- Plumas County1
- Sierra County1
- Fresno County1
- Kings County1
- Alameda County1
2 more counties
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20212023
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.