Alert archive / California / Flash Flood Warnings
Flash Flood Warnings in California, 1993
52 flash flood warnings in 1993. 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 warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 1993. Tap one for its archive.
- Flash Flood Warnings
- 52
- Busiest month
- January45 flash flood warnings
- Busiest day
- January 20, 199311 flash flood warnings
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 8, 3:00 PM PST | Flash Flood Warning | HNX | Kern | 12 hr |
| Jan 9, 1:55 AM PST | Flash Flood Warning | HNX | Kern | 7 hr |
| Jan 9, 10:16 PM PST | Flash Flood Warning | SGX | San Diego | 119 min |
| Jan 13, 4:10 AM PST | Flash Flood Warning | MTR | Marin | 5 hr |
| Jan 13, 6:10 AM PST | Flash Flood Warning | MTR | Santa Clara, Santa Cruz | 3 hr |
| Jan 13, 6:10 AM PST | Flash Flood Warning | MTR | Alameda, Contra Costa | 3 hr |
| Jan 13, 9:18 AM PST | Flash Flood Warning | MTR | Alameda | 3 hr |
| Jan 13, 12:17 PM PST | Flash Flood Warning | STO | Butte | 8 hr |
| Jan 13, 5:25 PM PST | Flash Flood Warning | EKA | Humboldt | 7 hr |
| Jan 13, 5:25 PM PST | Flash Flood Warning | EKA | Butte | 7 hr |
| Jan 13, 9:10 PM PST | Flash Flood Warning | LOX | Ventura | 12 hr |
| Jan 13, 9:25 PM PST | Flash Flood Warning | EKA | Humboldt | 10 hr |
| Jan 13, 9:25 PM PST | Flash Flood Warning | EKA | Butte | 10 hr |
| Jan 14, 2:15 AM PST | Flash Flood Warning | STO | Butte | 8 hr |
| Jan 14, 3:45 AM PST | Flash Flood Warning | MTR | Monterey | 3 hr |
| Jan 14, 6:49 AM PST | Flash Flood Warning | MTR | Monterey | 2 hr |
| Jan 14, 9:30 AM PST | Flash Flood Warning | MTR | Monterey | 3 hr |
| Jan 17, 8:30 AM PST | Flash Flood Warning | LOX | Riverside | 10 hr |
| Jan 17, 2:05 PM PST | Flash Flood Warning | LOX | Riverside | 4 hr |
| Jan 18, 8:30 AM PST | Flash Flood Warning | LOX | Riverside | 4 hr |
| Jan 18, 8:44 AM PST | Flash Flood Warning | SGX | San Diego | 4 hr |
| Jan 18, 9:40 AM PST | Flash Flood Warning | LOX | Los Angeles, Orange, Ventura | 2 hr |
| Jan 18, 10:06 AM PST | Flash Flood Warning | SGX | San Diego | 6 hr |
| Jan 18, 12:29 PM PST | Flash Flood Warning | LOX | Los Angeles, Orange | 91 min |
| Jan 18, 1:59 PM PST | Flash Flood Warning | LOX | Los Angeles, Orange | 1 min |
| Jan 20, 7:15 AM PST | Flash Flood Warning | MTR | Marin, Sonoma | 5 hr |
| Jan 20, 9:12 AM PST | Flash Flood Warning | EKA | Lake, Mendocino | 3 hr |
| Jan 20, 10:15 AM PST | Flash Flood Warning | EKA | Mendocino | 6 hr |
| Jan 20, 10:15 AM PST | Flash Flood Warning | EKA | Napa, Sonoma | 6 hr |
| Jan 20, 10:55 AM PST | Flash Flood Warning | MTR | Marin, Sonoma | 4 hr |
| Jan 20, 11:48 AM PST | Flash Flood Warning | EKA | Lake, Mendocino | 4 hr |
| Jan 20, 2:32 PM PST | Flash Flood Warning | EKA | Lake, Mendocino | 6 hr |
| Jan 20, 2:35 PM PST | Flash Flood Warning | EKA | Napa, Sonoma | 5 hr |
| Jan 20, 2:35 PM PST | Flash Flood Warning | EKA | Mendocino | 5 hr |
| Jan 20, 3:40 PM PST | Flash Flood Warning | MTR | Napa, Sonoma | 6 hr |
| Jan 20, 3:40 PM PST | Flash Flood Warning | MTR | Marin | 6 hr |
| Jan 20, 8:40 PM PST | Flash Flood Warning | STO | Siskiyou, Trinity | 7 hr |
| Jan 20, 8:40 PM PST | Flash Flood Warning | STO | Butte, Glenn, Tehama | 7 hr |
| Jan 20, 8:40 PM PST | Flash Flood Warning | STO | Shasta | 7 hr |
| Jan 20, 8:53 PM PST | Flash Flood Warning | EKA | Lake, Mendocino | 3 hr |
| Jan 21, 12:05 AM PST | Flash Flood Warning | EKA | Lake, Mendocino | 9 hr |
| Jan 21, 12:05 AM PST | Flash Flood Warning | EKA | Del Norte | 9 hr |
| Jan 21, 3:45 PM PST | Flash Flood Warning | EKA | Napa, Sonoma | 6 hr |
| Jan 21, 3:45 PM PST | Flash Flood Warning | EKA | Mendocino | 6 hr |
| Jan 31, 12:26 AM PST | Flash Flood Warning | SGX | San Diego | 2 hr |
| Feb 8, 12:36 AM PST | Flash Flood Warning | HNX | Kern | 3 hr |
| Feb 8, 11:15 PM PST | Flash Flood Warning | LOX | Santa Barbara, Ventura | 3 hr |
| Feb 8, 11:15 PM PST | Flash Flood Warning | LOX | Orange, Riverside | 3 hr |
| Feb 8, 11:15 PM PST | Flash Flood Warning | LOX | Los Angeles, San Bernardino | 3 hr |
| Feb 18, 5:21 PM PST | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Mar 23, 10:32 PM PST | Flash Flood Warning | STO | Shasta | 3 hr |
| Mar 23, 10:32 PM PST | Flash Flood Warning | STO | Siskiyou | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mendocino County8
- Sonoma County6
- Butte County5
- Los Angeles County5
- Lake County5
- San Diego County4
- Marin County4
- Riverside County4
- Orange County4
- Napa County4
- Kern County3
- Ventura County3
- Monterey County3
- Alameda County2
- Humboldt County2
- Siskiyou County2
- Shasta County2
- Santa Clara County1
- Santa Cruz County1
- Contra Costa County1
- Trinity County1
- Glenn County1
- Tehama County1
- Del Norte County1
- Santa Barbara County1
- San Bernardino County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19921994
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.