Alert archive / California / Flash Flood Watches / 2021
Flash Flood Watches in California, July 2021
12 flash flood watches in July 2021. 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 watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in July 2021. Tap one for its archive.
- Flash Flood Watches
- 12
- Busiest day
- July 29, 20214 flash flood watches
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Jul 12, 1:11 PM PDT | Flash Flood Watch | VEF | San Bernardino | 40 hr |
| Jul 18, 8:07 AM PDT | Flash Flood Watch | SGX | Riverside, San Diego | 11 hr |
| Jul 19, 2:37 AM PDT | Flash Flood Watch | VEF | Inyo | 17 hr |
| Jul 23, 1:11 PM PDT | Flash Flood Watch | VEF | San Bernardino | 3 days |
| Jul 25, 12:19 PM PDT | Flash Flood Watch | VEF | Inyo | 32 hr |
| Jul 25, 6:53 PM PDT | Flash Flood Watch | SGX | Riverside, San Bernardino, San Diego | 23 hr |
| Jul 26, 1:45 AM PDT | Flash Flood Watch | LOX | Los Angeles | 17 hr |
| Jul 26, 10:14 AM PDT | Flash Flood Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 11 hr |
| Jul 29, 9:38 AM PDT | Flash Flood Watch | HNX | 58 hr | |
| Jul 29, 12:09 PM PDT | Flash Flood Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 59 hr |
| Jul 29, 1:13 PM PDT | Flash Flood Watch | VEF | Inyo, San Bernardino | 55 hr |
| Jul 29, 1:26 PM PDT | Flash Flood Watch | PSR | Imperial, Riverside, San Bernardino | 40 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.