Alert archive / California / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in California, 1997
127 severe thunderstorm warnings in 1997. 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 1997. Tap one for its archive.
- Severe Thunderstorm Warnings
- 127
- Busiest month
- September42 severe thunderstorm warnings
- Busiest day
- September 3, 199711 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 13, 12:15 AM PST | Severe Thunderstorm Warning | LOX | Los Angeles | 60 min |
| Jan 13, 12:20 AM PST | Severe Thunderstorm Warning | SGX | Orange | 115 min |
| Jan 13, 1:00 AM PST | Severe Thunderstorm Warning | SGX | Riverside | 2 hr |
| Jan 15, 2:45 PM PST | Severe Thunderstorm Warning | LOX | Santa Barbara | 45 min |
| Jan 20, 4:10 PM PST | Severe Thunderstorm Warning | HNX | Tulare | 35 min |
| Jan 26, 5:20 PM PST | Severe Thunderstorm Warning | VEF | San Bernardino | 55 min |
| Feb 17, 2:25 PM PST | Severe Thunderstorm Warning | HNX | Kern | 2 hr |
| Mar 22, 3:30 PM PST | Severe Thunderstorm Warning | HNX | Fresno | 45 min |
| Mar 22, 3:55 PM PST | Severe Thunderstorm Warning | HNX | Fresno | 65 min |
| Mar 22, 4:04 PM PST | Severe Thunderstorm Warning | HNX | Kern | 56 min |
| Mar 22, 4:56 PM PST | Severe Thunderstorm Warning | HNX | Fresno | 64 min |
| Mar 22, 6:03 PM PST | Severe Thunderstorm Warning | HNX | Kings | 42 min |
| Mar 22, 6:45 PM PST | Severe Thunderstorm Warning | HNX | Kings | 45 min |
| Apr 2, 12:40 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 60 min |
| May 18, 3:13 PM PDT | Severe Thunderstorm Warning | SGX | Riverside, San Diego | 62 min |
| May 19, 12:19 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 51 min |
| May 19, 1:26 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 64 min |
| May 19, 1:45 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 60 min |
| May 20, 12:15 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 90 min |
| May 20, 1:05 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 55 min |
| May 20, 4:45 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 60 min |
| Jun 5, 2:49 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 56 min |
| Jun 5, 3:25 PM PDT | Severe Thunderstorm Warning | STO | Nevada, Placer | 50 min |
| Jun 5, 3:25 PM PDT | Severe Thunderstorm Warning | STO | Sierra | 50 min |
| Jun 6, 3:51 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 54 min |
| Jun 6, 4:16 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 59 min |
| Jun 6, 5:20 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 55 min |
| Jun 6, 6:17 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 43 min |
| Jun 6, 7:19 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 56 min |
| Jun 6, 7:20 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 25 min |
| Jun 9, 1:20 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 30 min |
| Jun 9, 1:55 PM PDT | Severe Thunderstorm Warning | EKA | Humboldt, Mendocino, Trinity | 55 min |
| Jun 9, 2:09 PM PDT | Severe Thunderstorm Warning | STO | Lake, Napa | 66 min |
| Jun 9, 4:02 PM PDT | Severe Thunderstorm Warning | STO | Stanislaus | 43 min |
| Jun 9, 6:09 PM PDT | Severe Thunderstorm Warning | STO | Butte | 66 min |
| Jun 11, 2:27 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 63 min |
| Jul 1, 7:03 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 42 min |
| Jul 1, 8:03 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 47 min |
| Jul 1, 8:18 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 32 min |
| Jul 16, 7:32 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 48 min |
| Jul 22, 3:08 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 92 min |
| Jul 22, 4:14 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 71 min |
| Jul 22, 4:18 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 57 min |
| Jul 22, 5:26 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 49 min |
| Jul 22, 6:03 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 62 min |
| Jul 22, 7:02 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 78 min |
| Jul 22, 8:01 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 74 min |
| Jul 22, 8:26 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 49 min |
| Jul 23, 2:55 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 65 min |
| Jul 23, 3:51 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 49 min |
| Jul 26, 2:05 PM PDT | Severe Thunderstorm Warning | REV | Sierra | 55 min |
| Jul 26, 4:10 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 55 min |
| Jul 26, 4:45 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 60 min |
| Jul 26, 4:50 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 55 min |
| Jul 26, 5:38 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 82 min |
| Jul 26, 6:58 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 92 min |
| Jul 27, 7:44 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 46 min |
| Jul 28, 1:05 AM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 55 min |
| Jul 28, 1:55 PM PDT | Severe Thunderstorm Warning | STO | Nevada, Sierra | 30 min |
| Jul 28, 4:49 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 56 min |
| Jul 30, 3:23 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 62 min |
| Jul 30, 7:00 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 30 min |
| Aug 3, 2:56 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 64 min |
| Aug 3, 3:00 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 60 min |
| Aug 3, 4:00 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 60 min |
| Aug 3, 4:29 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 61 min |
| Aug 3, 4:59 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 31 min |
| Aug 6, 1:32 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 43 min |
| Aug 8, 2:11 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 64 min |
| Aug 9, 3:50 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 115 min |
| Aug 16, 5:33 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 57 min |
| Sep 1, 2:12 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 58 min |
| Sep 1, 3:08 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 67 min |
| Sep 1, 4:15 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 60 min |
| Sep 2, 1:58 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 62 min |
| Sep 2, 2:33 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 57 min |
| Sep 2, 3:03 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 117 min |
| Sep 2, 3:03 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 117 min |
| Sep 2, 3:35 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 55 min |
| Sep 2, 3:47 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 58 min |
| Sep 2, 4:05 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 55 min |
| Sep 2, 4:13 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 62 min |
| Sep 2, 5:28 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 2 hr |
| Sep 2, 5:28 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 2 hr |
| Sep 2, 5:40 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 65 min |
| Sep 2, 5:49 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 56 min |
| Sep 2, 6:02 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 28 min |
| Sep 2, 6:25 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 60 min |
| Sep 2, 6:43 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 77 min |
| Sep 2, 6:43 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 77 min |
| Sep 2, 7:22 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 58 min |
| Sep 2, 8:54 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 36 min |
| Sep 3, 2:25 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 65 min |
| Sep 3, 5:02 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 118 min |
| Sep 3, 7:41 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 49 min |
| Sep 4, 3:45 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 30 min |
| Sep 4, 4:22 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 38 min |
| Sep 4, 5:30 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 30 min |
| Sep 4, 5:58 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 62 min |
| Sep 4, 6:02 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 28 min |
| Sep 5, 1:17 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 58 min |
| Sep 5, 2:12 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 63 min |
| Sep 5, 2:24 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 66 min |
| Sep 5, 3:15 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 60 min |
| Sep 5, 3:27 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 63 min |
| Sep 5, 4:04 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 61 min |
| Sep 5, 4:14 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 61 min |
| Sep 5, 5:45 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 60 min |
| Sep 5, 6:37 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 68 min |
| Sep 5, 7:10 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 65 min |
| Sep 14, 3:00 PM PDT | Severe Thunderstorm Warning | STO | Butte, Tehama | 45 min |
| Sep 14, 3:38 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 47 min |
| Sep 14, 4:43 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 62 min |
| Nov 13, 2:23 PM PST | Severe Thunderstorm Warning | STO | San Joaquin | 47 min |
| Nov 13, 2:55 PM PST | Severe Thunderstorm Warning | HNX | Merced | 35 min |
| Nov 13, 4:40 PM PST | Severe Thunderstorm Warning | STO | Stanislaus | 30 min |
| Nov 26, 3:13 AM PST | Severe Thunderstorm Warning | LOX | San Luis Obispo, Santa Barbara | 47 min |
| Nov 26, 4:00 AM PST | Severe Thunderstorm Warning | LOX | San Luis Obispo, Santa Barbara | 60 min |
| Nov 26, 5:00 AM PST | Severe Thunderstorm Warning | LOX | Santa Barbara | 60 min |
| Nov 26, 9:20 AM PST | Severe Thunderstorm Warning | LOX | Los Angeles | 70 min |
| Nov 26, 9:40 AM PST | Severe Thunderstorm Warning | SGX | Orange, San Bernardino | 2 hr |
| Nov 30, 8:12 AM PST | Severe Thunderstorm Warning | SGX | Orange | 63 min |
| Dec 6, 2:18 AM PST | Severe Thunderstorm Warning | LOX | Santa Barbara | 57 min |
| Dec 6, 2:30 AM PST | Severe Thunderstorm Warning | LOX | Ventura | 60 min |
| Dec 6, 3:40 AM PST | Severe Thunderstorm Warning | LOX | Los Angeles | 65 min |
| Dec 6, 3:51 AM PST | Severe Thunderstorm Warning | SGX | Orange | 69 min |
| Dec 6, 9:45 AM PST | Severe Thunderstorm Warning | SGX | Orange, Riverside | 60 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County37
- Riverside County14
- San Diego County13
- Siskiyou County9
- Imperial County8
- Kern County7
- Orange County5
- Santa Barbara County5
- Los Angeles County4
- Inyo County4
- Fresno County3
- Sierra County3
- Trinity County3
- Lassen County3
- Kings County2
- Nevada County2
- Stanislaus County2
- Butte County2
- San Luis Obispo County2
- Tulare County1
- Placer County1
- Humboldt County1
- Mendocino County1
- Lake County1
- Napa County1
- Tehama County1
- San Joaquin County1
- Merced County1
- Ventura County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19961998
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.