Alert archive / California / Severe Thunderstorm Warnings / 2025
Severe Thunderstorm Warnings in California, March 2025
22 severe thunderstorm warnings in March 2025. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in March 2025. Tap one for its archive.
- Severe Thunderstorm Warnings
- 22
- Busiest day
- March 13, 20257 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Mar 2, 2:13 PM PST | Severe Thunderstorm Warning | HNX | Madera, Mariposa, Merced | 32 min |
| Mar 2, 2:25 PM PST | Severe Thunderstorm Warning | HNX | Kern, Tulare | 50 min |
| Mar 5, 2:31 PM PST | Severe Thunderstorm Warning | MTR | Santa Clara | 29 min |
| Mar 5, 2:59 PM PST | Severe Thunderstorm Warning | MTR | San Benito, Santa Clara | 31 min |
| Mar 12, 2:17 PM PDT | Severe Thunderstorm Warning | MTR | City and County of San Francisco, San Mateo | 28 min |
| Mar 12, 2:36 PM PDT | Severe Thunderstorm Warning | MTR | San Mateo, Santa Clara, Santa Cruz | 24 min |
| Mar 12, 2:43 PM PDT | Severe Thunderstorm Warning | MTR | Santa Cruz | 21 min |
| Mar 12, 2:49 PM PDT | Severe Thunderstorm Warning | MTR | Santa Cruz | 11 min |
| Mar 12, 3:00 PM PDT | Severe Thunderstorm Warning | MTR | San Mateo, Santa Clara, Santa Cruz | 15 min |
| Mar 12, 3:23 PM PDT | Severe Thunderstorm Warning | MTR | Monterey | 22 min |
| Mar 12, 8:01 PM PDT | Severe Thunderstorm Warning | LOX | Santa Barbara | 89 min |
| Mar 13, 12:29 AM PDT | Severe Thunderstorm Warning | LOX | Ventura | 31 min |
| Mar 13, 2:44 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 16 min |
| Mar 13, 3:47 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Kings, Tulare | 28 min |
| Mar 13, 4:11 PM PDT | Severe Thunderstorm Warning | HNX | Kern, Kings, Tulare | 49 min |
| Mar 13, 4:13 PM PDT | Severe Thunderstorm Warning | HNX | Kings, Tulare | 17 min |
| Mar 13, 4:23 PM PDT | Severe Thunderstorm Warning | HNX | Kern, Tulare | 37 min |
| Mar 17, 2:57 PM PDT | Severe Thunderstorm Warning | STO | Stanislaus, Tuolumne | 24 min |
| Mar 17, 3:35 PM PDT | Severe Thunderstorm Warning | STO | Butte, Glenn, Tehama | 40 min |
| Mar 17, 4:29 PM PDT | Severe Thunderstorm Warning | STO | Butte, Glenn, Tehama | 46 min |
| Mar 17, 4:55 PM PDT | Severe Thunderstorm Warning | HNX | Kings, Tulare | 35 min |
| Mar 17, 5:25 PM PDT | Severe Thunderstorm Warning | HNX | Kings, Tulare | 18 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Tulare County7
- Kings County5
- Kern County4
- Santa Clara County4
- Santa Cruz County4
- San Mateo County3
- Butte County2
- Glenn County2
- Tehama County2
- Madera County1
- Mariposa County1
- Merced County1
- San Benito County1
- City and County of San Francisco1
- Monterey County1
- Santa Barbara County1
- Ventura County1
- Fresno County1
- Stanislaus County1
- Tuolumne County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.