Alert archive / California / Flash Flood Watches

Flash Flood Watches in California, 2012

38 flash flood watches 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 watches reaches back to 2005.

Flash Flood Watches by county

Each county as a circle sized by its count in 2012. Tap one for its archive.

Flash Flood Watches
38
Busiest month
August16 flash flood watches
Busiest day
August 17, 20124 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.

IssuedProductOfficeCountiesLasted
Jul 11, 2:15 PM PDTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego55 hr
Jul 12, 10:56 AM PDTFlash Flood WatchVEFInyo, San Bernardino61 hr
Jul 12, 2:17 PM PDTFlash Flood WatchLOX28 hr
Jul 12, 8:35 PM PDTFlash Flood WatchHNX22 hr
Jul 13, 1:18 PM PDTFlash Flood WatchPSR11 hr
Jul 14, 9:43 AM PDTFlash Flood WatchSGXRiverside, San Diego9 hr
Jul 15, 10:14 AM PDTFlash Flood WatchVEFSan Bernardino11 hr
Jul 29, 9:00 PM PDTFlash Flood WatchVEFSan Bernardino25 hr
Jul 30, 10:55 AM PDTFlash Flood WatchSGXRiverside, San Diego9 hr
Jul 30, 12:25 PM PDTFlash Flood WatchPSR9 hr
Jul 30, 7:45 PM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego23 hr
Jul 31, 2:29 AM PDTFlash Flood WatchVEFSan Bernardino19 hr
Jul 31, 3:42 AM PDTFlash Flood WatchPSR15 hr
Aug 1, 2:44 AM PDTFlash Flood WatchVEFSan Bernardino20 hr
Aug 7, 9:31 AM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego9 hr
Aug 12, 9:18 AM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego12 hr
Aug 12, 9:33 AM PDTFlash Flood WatchLOX9 hr
Aug 12, 9:48 AM PDTFlash Flood WatchHNX9 hr
Aug 13, 3:23 AM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego16 hr
Aug 16, 7:07 PM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego25 hr
Aug 17, 2:58 AM PDTFlash Flood WatchHNX17 hr
Aug 17, 3:26 AM PDTFlash Flood WatchLOX15 hr
Aug 17, 11:23 AM PDTFlash Flood WatchVEFSan Bernardino8 hr
Aug 17, 8:26 PM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego20 hr
Aug 21, 9:07 AM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego11 hr
Aug 21, 11:39 AM PDTFlash Flood WatchVEFInyo, San Bernardino36 hr
Aug 22, 9:57 AM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego8 hr
Aug 30, 3:18 AM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego16 hr
Aug 31, 11:11 AM PDTFlash Flood WatchVEFSan Bernardino23 hr
Sep 9, 3:32 AM PDTFlash Flood WatchLOX17 hr
Sep 9, 2:26 PM PDTFlash Flood WatchVEFInyo, San Bernardino55 hr
Sep 9, 2:51 PM PDTFlash Flood WatchHNX28 hr
Sep 9, 7:01 PM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego23 hr
Sep 10, 3:23 AM PDTFlash Flood WatchLOX16 hr
Sep 11, 3:42 AM PDTFlash Flood WatchPSR11 hr
Nov 29, 11:22 AM PSTFlash Flood WatchMTRMarin, Monterey, Napa, City and County of San Francisco, San Mateo, Santa Clara and 2 more3 days
Dec 23, 9:31 AM PSTFlash Flood WatchMTRMarin, Napa, Sonoma5 hr
Dec 23, 3:12 PM PSTFlash Flood WatchMTRSanta Cruz4 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

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. Warning verification from the Mesonet's Cow. Rebuilt daily.