Alert archive / California / Riverside County / Flash Flood Watches
Flash Flood Watches in Riverside County, California, 2021
12 flash flood watches in 2021. An alert counts here when it covered this county. The archive of flash flood watches reaches back to 2005.
Riverside County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Flash Flood Watches
- 12
- Busiest month
- January3 flash flood watches
- Busiest day
- January 19, 20212 flash 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 | Lasted |
|---|---|---|---|
| Jan 19, 9:51 AM PST | Flash Flood Watch | PSR | 39 hr |
| Jan 19, 10:07 AM PST | Flash Flood Watch | SGX | 38 hr |
| Jan 27, 10:58 AM PST | Flash Flood Watch | SGX | 53 hr |
| Mar 10, 2:02 PM PST | Flash Flood Watch | SGX | 38 hr |
| Jul 18, 8:07 AM PDT | Flash Flood Watch | SGX | 11 hr |
| Jul 25, 6:53 PM PDT | Flash Flood Watch | SGX | 23 hr |
| Jul 29, 1:26 PM PDT | Flash Flood Watch | PSR | 40 hr |
| Aug 9, 1:34 PM PDT | Flash Flood Watch | SGX | 54 hr |
| Aug 30, 1:43 AM PDT | Flash Flood Watch | PSR | 3 days |
| Aug 30, 2:38 AM PDT | Flash Flood Watch | SGX | 42 hr |
| Sep 24, 8:56 AM PDT | Flash Flood Watch | SGX | 10 hr |
| Sep 24, 9:03 AM PDT | Flash Flood Watch | PSR | 10 hr |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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.