Alert archive / California / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in California, 2007
95 severe thunderstorm warnings in 2007. 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 2007. Tap one for its archive.
- Severe Thunderstorm Warnings
- 95
- Busiest month
- September26 severe thunderstorm warnings
- Busiest day
- October 30, 200712 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 |
|---|---|---|---|---|
| Feb 22, 6:42 PM PST | Severe Thunderstorm Warning | HNX | Kings, Tulare | 33 min |
| Apr 11, 2:56 PM PDT | Severe Thunderstorm Warning | STO | Colusa | 34 min |
| May 30, 2:54 PM PDT | Severe Thunderstorm Warning | REV | Alpine, El Dorado | 36 min |
| May 30, 7:20 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 40 min |
| May 31, 3:57 PM PDT | Severe Thunderstorm Warning | REV | Alpine | 33 min |
| May 31, 4:31 PM PDT | Severe Thunderstorm Warning | REV | Plumas | 29 min |
| May 31, 7:50 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 10 min |
| Jun 1, 5:23 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 37 min |
| Jun 5, 5:28 PM PDT | Severe Thunderstorm Warning | STO | Colusa, Sutter | 22 min |
| Jul 6, 2:38 PM PDT | Severe Thunderstorm Warning | REV | Plumas | 52 min |
| Jul 6, 2:48 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Sierra | 42 min |
| Jul 6, 3:20 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 40 min |
| Jul 6, 3:58 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 47 min |
| Jul 6, 4:19 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 26 min |
| Jul 6, 4:44 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 46 min |
| Jul 6, 6:45 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 45 min |
| Jul 10, 1:38 PM PDT | Severe Thunderstorm Warning | HNX | Mariposa | 52 min |
| Jul 10, 2:42 PM PDT | Severe Thunderstorm Warning | STO | Amador, Calaveras, El Dorado | 33 min |
| Jul 10, 4:13 PM PDT | Severe Thunderstorm Warning | STO | Shasta | 32 min |
| Jul 10, 4:35 PM PDT | Severe Thunderstorm Warning | REV | Nevada, Sierra | 55 min |
| Jul 10, 4:43 PM PDT | Severe Thunderstorm Warning | STO | Shasta | 32 min |
| Jul 10, 5:41 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Plumas | 49 min |
| Jul 10, 7:06 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 39 min |
| Jul 11, 3:38 PM PDT | Severe Thunderstorm Warning | REV | Mono | 37 min |
| Jul 21, 3:07 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 84 min |
| Jul 24, 2:20 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 28 min |
| Jul 25, 3:53 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 67 min |
| Jul 26, 4:47 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 43 min |
| Jul 26, 6:50 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 25 min |
| Jul 27, 7:35 PM PDT | Severe Thunderstorm Warning | VEF | Inyo, San Bernardino | 55 min |
| Jul 28, 6:42 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 63 min |
| Jul 28, 7:44 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 46 min |
| Aug 26, 12:54 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 66 min |
| Aug 26, 1:08 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 52 min |
| Aug 27, 2:02 PM PDT | Severe Thunderstorm Warning | REV | Mono | 58 min |
| Aug 27, 2:58 PM PDT | Severe Thunderstorm Warning | REV | Mono | 47 min |
| Aug 28, 3:13 PM PDT | Severe Thunderstorm Warning | REV | Mono | 30 min |
| Aug 29, 3:23 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 52 min |
| Aug 29, 11:31 PM PDT | Severe Thunderstorm Warning | LOX | San Luis Obispo, Santa Barbara | 59 min |
| Aug 30, 12:25 AM PDT | Severe Thunderstorm Warning | LOX | San Luis Obispo | 65 min |
| Aug 30, 1:16 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 57 min |
| Aug 30, 2:46 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 59 min |
| Aug 30, 4:28 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 48 min |
| Aug 30, 4:34 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 41 min |
| Aug 30, 5:21 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 54 min |
| Aug 30, 6:20 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 25 min |
| Aug 31, 1:10 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 65 min |
| Aug 31, 2:36 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Sierra | 24 min |
| Aug 31, 2:52 PM PDT | Severe Thunderstorm Warning | SGX | Riverside, San Bernardino | 53 min |
| Aug 31, 3:10 PM PDT | Severe Thunderstorm Warning | SGX | Riverside, San Bernardino | 65 min |
| Aug 31, 3:33 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Plumas | 42 min |
| Aug 31, 4:48 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 57 min |
| Aug 31, 6:17 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 43 min |
| Aug 31, 6:24 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 36 min |
| Sep 1, 1:27 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 63 min |
| Sep 1, 2:45 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 60 min |
| Sep 1, 3:46 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 59 min |
| Sep 2, 12:03 AM PDT | Severe Thunderstorm Warning | PSR | Imperial | 57 min |
| Sep 2, 1:49 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 56 min |
| Sep 2, 2:17 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 28 min |
| Sep 2, 2:25 PM PDT | Severe Thunderstorm Warning | SGX | Orange, Riverside | 45 min |
| Sep 2, 3:44 PM PDT | Severe Thunderstorm Warning | SGX | Riverside, San Diego | 61 min |
| Sep 3, 3:38 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 37 min |
| Sep 3, 3:49 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 56 min |
| Sep 3, 5:30 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 30 min |
| Sep 4, 2:30 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 60 min |
| Sep 4, 3:03 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 27 min |
| Sep 4, 3:20 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 55 min |
| Sep 4, 3:48 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 57 min |
| Sep 4, 4:54 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 39 min |
| Sep 4, 5:00 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 45 min |
| Sep 4, 5:40 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 26 min |
| Sep 15, 7:21 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 39 min |
| Sep 21, 10:38 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 37 min |
| Sep 21, 11:48 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 27 min |
| Sep 22, 1:57 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 63 min |
| Sep 22, 6:15 PM PDT | Severe Thunderstorm Warning | HNX | Kings, Tulare | 45 min |
| Sep 22, 8:24 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 36 min |
| Oct 29, 1:16 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Madera, Mariposa, Tuolumne | 29 min |
| Oct 29, 4:00 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 30 min |
| Oct 29, 4:10 PM PDT | Severe Thunderstorm Warning | MTR | San Benito | 19 min |
| Oct 29, 4:28 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 47 min |
| Oct 29, 4:43 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 47 min |
| Oct 29, 5:02 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Madera | 43 min |
| Oct 29, 5:14 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 46 min |
| Oct 29, 5:22 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Kings, Tulare | 38 min |
| Oct 29, 5:29 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 34 min |
| Oct 29, 5:38 PM PDT | Severe Thunderstorm Warning | HNX | Kern, Kings, Tulare | 52 min |
| Oct 29, 5:56 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Madera | 49 min |
| Oct 29, 5:57 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Kings, Tulare | 48 min |
| Oct 29, 6:33 PM PDT | Severe Thunderstorm Warning | HNX | Kings, Tulare | 42 min |
| Oct 29, 6:38 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 52 min |
| Oct 29, 6:41 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Madera | 49 min |
| Oct 29, 6:56 PM PDT | Severe Thunderstorm Warning | HNX | Tulare | 49 min |
| Oct 29, 7:12 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Madera, Mariposa, Merced, Tulare, Tuolumne | 63 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County13
- Lassen County12
- Fresno County12
- Riverside County11
- Tulare County8
- San Diego County8
- Kern County7
- Kings County6
- Imperial County6
- Madera County5
- Plumas County4
- Mono County4
- Siskiyou County3
- Sierra County3
- Mariposa County3
- Los Angeles County3
- Colusa County2
- Alpine County2
- El Dorado County2
- Shasta County2
- San Luis Obispo County2
- Tuolumne County2
- Sutter County1
- Amador County1
- Calaveras County1
- Nevada County1
- Inyo County1
- Trinity County1
- Santa Barbara County1
- Orange County1
- San Benito County1
- Merced County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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.