Alert archive / California / Flash Flood Watches

Flash Flood Watches in California, 2019

61 flash flood watches in 2019. 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 2019. Tap one for its archive.

Flash Flood Watches
61
Busiest month
January13 flash flood watches
Busiest day
February 1, 20194 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
Jan 5, 3:47 PM PSTFlash Flood WatchLOX11 hr
Jan 13, 3:00 PM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego30 hr
Jan 14, 1:38 PM PSTFlash Flood WatchLOXLos Angeles30 hr
Jan 15, 5:23 AM PSTFlash Flood WatchHNX65 hr
Jan 15, 11:18 AM PSTFlash Flood WatchMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more37 hr
Jan 15, 7:19 PM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego47 hr
Jan 16, 2:16 PM PSTFlash Flood WatchLOXLos Angeles19 hr
Jan 17, 2:50 AM PSTFlash Flood WatchSTO13 hr
Jan 20, 7:20 AM PSTFlash Flood WatchSTO14 hr
Jan 30, 12:33 PM PSTFlash Flood WatchSGXOrange, Riverside, San Diego29 hr
Jan 31, 7:27 AM PSTFlash Flood WatchLOXLos Angeles5 hr
Jan 31, 10:45 AM PSTFlash Flood WatchHNX68 hr
Jan 31, 10:57 AM PSTFlash Flood WatchMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more45 hr
Jan 31, 8:44 PM PSTFlash Flood WatchLOXLos Angeles55 hr
Jan 31, 9:21 PM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego45 hr
Feb 1, 2:10 PM PSTFlash Flood WatchSTO3 days
Feb 1, 2:28 PM PSTFlash Flood WatchEKAMendocino3 days
Feb 11, 1:09 PM PSTFlash Flood WatchMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more69 hr
Feb 12, 2:04 PM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego51 hr
Feb 12, 2:06 PM PSTFlash Flood WatchVEFSan Bernardino52 hr
Feb 13, 2:47 PM PSTFlash Flood WatchLOXLos Angeles22 hr
Feb 24, 8:29 AM PSTFlash Flood WatchSTO51 hr
Feb 24, 1:38 PM PSTFlash Flood WatchMTRAlameda, Contra Costa, City and County of San Francisco, San Mateo, Santa Clara, Santa Cruz61 hr
Mar 4, 10:05 AM PSTFlash Flood WatchHNX66 hr
Mar 4, 2:30 PM PSTFlash Flood WatchLOXLos Angeles45 hr
Mar 5, 9:26 AM PSTFlash Flood WatchVEFInyo, San Bernardino29 hr
Mar 6, 9:23 AM PSTFlash Flood WatchSTO11 hr
Mar 6, 10:30 AM PSTFlash Flood WatchEKA10 hr
Mar 7, 4:12 AM PSTFlash Flood WatchHNX6 hr
Mar 28, 9:35 AM PDTFlash Flood WatchSTO11 hr
Apr 4, 12:12 PM PDTFlash Flood WatchSTO35 hr
Apr 8, 3:00 AM PDTFlash Flood WatchSTO18 hr
May 9, 2:36 AM PDTFlash Flood WatchVEFInyo36 hr
Jun 1, 4:09 AM PDTFlash Flood WatchLOXSanta Barbara17 hr
Jun 2, 3:35 AM PDTFlash Flood WatchLOXSanta Barbara17 hr
Jun 5, 9:36 AM PDTFlash Flood WatchLOXSanta Barbara10 hr
Jul 24, 11:58 AM PDTFlash Flood WatchPSRRiverside, San Bernardino8 hr
Jul 24, 12:24 PM PDTFlash Flood WatchVEFInyo, San Bernardino9 hr
Jul 24, 12:24 PM PDTFlash Flood WatchVEFInyo32 hr
Jul 25, 11:55 AM PDTFlash Flood WatchHNX8 hr
Sep 2, 2:22 AM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego18 hr
Sep 2, 3:09 AM PDTFlash Flood WatchLOX19 hr
Sep 3, 2:59 AM PDTFlash Flood WatchLOX16 hr
Sep 5, 4:23 AM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego15 hr
Sep 24, 2:25 PM PDTFlash Flood WatchPSRImperial, Riverside, San Bernardino51 hr
Sep 24, 2:25 PM PDTFlash Flood WatchVEFSan Bernardino51 hr
Nov 18, 11:59 AM PSTFlash Flood WatchPSRImperial, Riverside58 hr
Nov 18, 1:40 PM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego59 hr
Nov 18, 1:44 PM PSTFlash Flood WatchVEFSan Bernardino48 hr
Nov 24, 1:50 PM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego4 days
Nov 26, 3:41 AM PSTFlash Flood WatchMTRMarin, Napa, Sonoma18 hr
Nov 26, 1:07 PM PSTFlash Flood WatchPSRImperial, Riverside3 days
Nov 29, 3:42 AM PSTFlash Flood WatchMTRMarin, Napa, Sonoma71 hr
Dec 3, 1:07 PM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego29 hr
Dec 3, 10:46 PM PSTFlash Flood WatchLOXLos Angeles13 hr
Dec 5, 3:17 AM PSTFlash Flood WatchMTRMarin, Napa, Sonoma49 hr
Dec 6, 10:54 AM PSTFlash Flood WatchSTO30 hr
Dec 6, 12:10 PM PSTFlash Flood WatchEKAMendocino29 hr
Dec 7, 4:56 AM PSTFlash Flood WatchMTRMarin, Napa, Sonoma17 hr
Dec 25, 3:04 AM PSTFlash Flood WatchPSRImperial, Riverside, San Bernardino42 hr
Dec 25, 3:50 AM PSTFlash Flood WatchVEFSan Bernardino41 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.

  1. February 1, 20194flash flood watches
  2. January 31, 20193flash flood watches
  3. July 24, 20193flash flood watches
  4. November 18, 20193flash flood watches
  5. January 15, 20192flash flood watches
  6. January 16, 20192flash flood watches
  7. February 12, 20192flash flood watches
  8. February 24, 20192flash flood watches
  9. March 4, 20192flash flood watches
  10. March 6, 20192flash flood watches
  11. September 2, 20192flash flood watches
  12. September 24, 20192flash flood watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20182020

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.