Alert archive / California / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in California, 2016
90 severe thunderstorm warnings in 2016. 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 2016. Tap one for its archive.
- Severe Thunderstorm Warnings
- 90
- Busiest month
- January22 severe thunderstorm warnings
- Busiest day
- January 31, 201612 severe thunderstorm 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 6, 10:31 AM PST | Severe Thunderstorm Warning | LOX | Los Angeles, Ventura | 29 min |
| Jan 6, 12:46 PM PST | Severe Thunderstorm Warning | SGX | Orange, Riverside, San Bernardino | 44 min |
| Jan 6, 1:04 PM PST | Severe Thunderstorm Warning | SGX | Orange, Riverside, San Diego | 56 min |
| Jan 6, 2:23 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 52 min |
| Jan 6, 3:19 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 43 min |
| Jan 19, 9:33 AM PST | Severe Thunderstorm Warning | EKA | Del Norte | 42 min |
| Jan 19, 12:43 PM PST | Severe Thunderstorm Warning | MFR | Modoc, Siskiyou | 32 min |
| Jan 19, 1:12 PM PST | Severe Thunderstorm Warning | MFR | Modoc, Siskiyou | 36 min |
| Jan 23, 3:51 PM PST | Severe Thunderstorm Warning | STO | Butte, Tehama | 54 min |
| Jan 23, 4:47 PM PST | Severe Thunderstorm Warning | STO | Butte, Glenn, Tehama | 43 min |
| Jan 31, 11:20 AM PST | Severe Thunderstorm Warning | LOX | Santa Barbara | 55 min |
| Jan 31, 12:34 PM PST | Severe Thunderstorm Warning | LOX | Los Angeles, Ventura | 56 min |
| Jan 31, 1:08 PM PST | Severe Thunderstorm Warning | LOX | Los Angeles | 37 min |
| Jan 31, 1:33 PM PST | Severe Thunderstorm Warning | HNX | Kern | 12 min |
| Jan 31, 1:36 PM PST | Severe Thunderstorm Warning | VEF | San Bernardino | 39 min |
| Jan 31, 1:38 PM PST | Severe Thunderstorm Warning | SGX | Orange | 82 min |
| Jan 31, 1:48 PM PST | Severe Thunderstorm Warning | SGX | Riverside, San Diego | 87 min |
| Jan 31, 1:50 PM PST | Severe Thunderstorm Warning | LOX | Los Angeles | 25 min |
| Jan 31, 1:50 PM PST | Severe Thunderstorm Warning | VEF | San Bernardino | 40 min |
| Jan 31, 1:53 PM PST | Severe Thunderstorm Warning | HNX | Kern | 16 min |
| Jan 31, 2:55 PM PST | Severe Thunderstorm Warning | VEF | San Bernardino | 35 min |
| Jan 31, 3:22 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 83 min |
| Mar 7, 5:25 AM PST | Severe Thunderstorm Warning | LOX | Los Angeles, Santa Barbara, Ventura | 65 min |
| Mar 7, 6:36 AM PST | Severe Thunderstorm Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 84 min |
| Mar 7, 6:46 AM PST | Severe Thunderstorm Warning | LOX | Los Angeles | 45 min |
| Mar 7, 7:58 AM PST | Severe Thunderstorm Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 43 min |
| Mar 7, 8:06 AM PST | Severe Thunderstorm Warning | SGX | San Diego | 84 min |
| Mar 11, 10:40 AM PST | Severe Thunderstorm Warning | MTR | San Mateo, Santa Cruz | 20 min |
| Mar 11, 3:48 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 72 min |
| Apr 8, 2:23 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 37 min |
| Apr 24, 7:22 PM PDT | Severe Thunderstorm Warning | HNX | Kings | 23 min |
| Apr 24, 7:43 PM PDT | Severe Thunderstorm Warning | HNX | Kings | 47 min |
| Apr 24, 7:59 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 31 min |
| Apr 24, 9:07 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 23 min |
| Apr 24, 9:16 PM PDT | Severe Thunderstorm Warning | HNX | Kings, Tulare | 44 min |
| Apr 27, 1:06 PM PDT | Severe Thunderstorm Warning | STO | Calaveras, San Joaquin, Stanislaus, Tuolumne | 38 min |
| Apr 27, 2:23 PM PDT | Severe Thunderstorm Warning | MTR | Monterey | 25 min |
| Apr 27, 3:04 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 26 min |
| Apr 27, 3:13 PM PDT | Severe Thunderstorm Warning | STO | Amador, El Dorado, Sacramento | 62 min |
| Apr 27, 3:43 PM PDT | Severe Thunderstorm Warning | HNX | Kern, Kings | 47 min |
| Apr 27, 4:20 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 27 min |
| May 4, 5:49 PM PDT | Severe Thunderstorm Warning | STO | Glenn, Tehama | 42 min |
| May 4, 6:51 PM PDT | Severe Thunderstorm Warning | STO | Colusa, Glenn | 24 min |
| May 4, 10:10 PM PDT | Severe Thunderstorm Warning | STO | Butte, Glenn, Tehama | 8 min |
| May 4, 10:12 PM PDT | Severe Thunderstorm Warning | STO | Butte, Glenn, Tehama | 33 min |
| May 5, 12:48 PM PDT | Severe Thunderstorm Warning | STO | Sutter, Yuba | 42 min |
| May 5, 1:56 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 34 min |
| May 5, 2:39 PM PDT | Severe Thunderstorm Warning | EKA | Humboldt | 36 min |
| May 5, 6:45 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Madera, Merced | 30 min |
| May 6, 5:27 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 48 min |
| May 6, 6:36 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 39 min |
| Jun 5, 6:27 PM PDT | Severe Thunderstorm Warning | STO | Plumas | 48 min |
| Jun 5, 9:13 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 32 min |
| Jun 5, 9:46 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 29 min |
| Jun 28, 3:45 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 45 min |
| Jun 30, 2:42 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 63 min |
| Jun 30, 5:48 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 42 min |
| Jun 30, 6:26 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 34 min |
| Jun 30, 6:59 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 31 min |
| Jun 30, 10:56 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 64 min |
| Jul 1, 3:12 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 63 min |
| Jul 1, 3:14 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 61 min |
| Jul 1, 4:05 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 55 min |
| Jul 1, 4:59 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 61 min |
| Jul 1, 5:09 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 51 min |
| Jul 1, 10:20 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 25 min |
| Jul 1, 10:45 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 30 min |
| Jul 2, 1:26 AM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 49 min |
| Jul 2, 3:45 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 60 min |
| Jul 2, 5:54 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 38 min |
| Jul 29, 11:41 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 71 min |
| Jul 30, 12:50 AM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 85 min |
| Jul 30, 2:58 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 49 min |
| Aug 2, 1:56 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 49 min |
| Aug 5, 4:57 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 36 min |
| Aug 5, 5:28 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 47 min |
| Aug 5, 6:09 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 26 min |
| Aug 17, 6:19 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Plumas, Sierra | 41 min |
| Aug 19, 3:17 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 28 min |
| Aug 20, 2:46 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 44 min |
| Aug 26, 9:23 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 52 min |
| Aug 26, 9:40 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 35 min |
| Aug 26, 10:07 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 38 min |
| Aug 26, 10:50 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 40 min |
| Oct 2, 2:41 PM PDT | Severe Thunderstorm Warning | STO | Shasta, Tehama | 64 min |
| Oct 2, 2:59 PM PDT | Severe Thunderstorm Warning | STO | El Dorado, Placer, Sacramento | 46 min |
| Oct 2, 4:28 PM PDT | Severe Thunderstorm Warning | STO | Butte, Glenn, Tehama | 47 min |
| Oct 24, 8:14 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 61 min |
| Oct 31, 4:22 PM PDT | Severe Thunderstorm Warning | EKA | Humboldt | 23 min |
| Nov 19, 4:10 PM PST | Severe Thunderstorm Warning | EKA | Humboldt | 14 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County26
- San Diego County9
- Kern County8
- Riverside County7
- Siskiyou County7
- Tehama County7
- Los Angeles County6
- Glenn County6
- Orange County5
- Butte County5
- Kings County4
- Ventura County3
- Fresno County3
- Humboldt County3
- Inyo County3
- Modoc County2
- Santa Barbara County2
- Imperial County2
- El Dorado County2
- Sacramento County2
- Plumas County2
- Del Norte County1
- San Mateo County1
- Santa Cruz County1
- Tulare County1
- Calaveras County1
- San Joaquin County1
- Stanislaus County1
- Tuolumne County1
- Monterey County1
- Amador County1
- Colusa County1
- Sutter County1
- Yuba County1
- Trinity County1
- Madera County1
- Merced County1
- Lassen County1
- Sierra County1
- Shasta County1
1 more counties
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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. Rebuilt daily.