Alert archive / California / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in California, 2001
73 severe thunderstorm warnings in 2001. 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 2001. Tap one for its archive.
- Severe Thunderstorm Warnings
- 73
- Busiest month
- July25 severe thunderstorm warnings
- Busiest day
- July 10, 200112 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 24, 8:25 PM PST | Severe Thunderstorm Warning | STO | Tehama | 35 min |
| Feb 10, 3:48 PM PST | Severe Thunderstorm Warning | HNX | Madera | 42 min |
| Feb 10, 4:27 PM PST | Severe Thunderstorm Warning | HNX | Fresno, Madera | 63 min |
| Feb 10, 5:27 PM PST | Severe Thunderstorm Warning | HNX | Fresno | 33 min |
| Feb 13, 3:24 AM PST | Severe Thunderstorm Warning | SGX | Orange, Riverside, San Bernardino | 51 min |
| Feb 22, 2:05 PM PST | Severe Thunderstorm Warning | STO | Tehama | 30 min |
| Feb 22, 2:40 PM PST | Severe Thunderstorm Warning | STO | Glenn, Tehama | 35 min |
| Feb 22, 3:25 PM PST | Severe Thunderstorm Warning | STO | Butte | 35 min |
| Feb 22, 3:26 PM PST | Severe Thunderstorm Warning | STO | Glenn, Tehama | 34 min |
| Feb 22, 3:59 PM PST | Severe Thunderstorm Warning | STO | Butte | 16 min |
| Feb 22, 4:17 PM PST | Severe Thunderstorm Warning | STO | Tehama | 28 min |
| Feb 22, 4:36 PM PST | Severe Thunderstorm Warning | STO | Butte | 24 min |
| Feb 22, 4:47 PM PST | Severe Thunderstorm Warning | STO | Tehama | 28 min |
| Feb 22, 5:00 PM PST | Severe Thunderstorm Warning | STO | Butte | 30 min |
| Feb 22, 5:12 PM PST | Severe Thunderstorm Warning | STO | Tehama | 33 min |
| Feb 22, 5:29 PM PST | Severe Thunderstorm Warning | STO | Butte | 46 min |
| Feb 27, 3:20 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 40 min |
| Feb 27, 3:57 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 63 min |
| Mar 6, 3:13 PM PST | Severe Thunderstorm Warning | LOX | San Luis Obispo | 32 min |
| Mar 20, 5:18 PM PST | Severe Thunderstorm Warning | STO | Lake | 27 min |
| Mar 20, 5:48 PM PST | Severe Thunderstorm Warning | STO | Colusa, Lake, Yolo | 27 min |
| Mar 20, 6:15 PM PST | Severe Thunderstorm Warning | STO | Colusa, Lake, Yolo | 45 min |
| Mar 21, 4:27 PM PST | Severe Thunderstorm Warning | EKA | Mendocino | 33 min |
| Mar 21, 5:44 PM PST | Severe Thunderstorm Warning | EKA | Trinity | 31 min |
| Apr 7, 4:56 PM PDT | Severe Thunderstorm Warning | HNX | Merced | 29 min |
| Apr 7, 5:25 PM PDT | Severe Thunderstorm Warning | HNX | Merced | 35 min |
| Apr 7, 6:55 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 30 min |
| Apr 9, 5:45 PM PDT | Severe Thunderstorm Warning | MTR | Monterey | 30 min |
| Apr 11, 1:36 PM PDT | Severe Thunderstorm Warning | STO | Tehama | 39 min |
| Apr 26, 5:05 PM PDT | Severe Thunderstorm Warning | HNX | Kern, Kings | 30 min |
| May 22, 3:44 PM PDT | Severe Thunderstorm Warning | HNX | Tulare | 31 min |
| Jul 6, 2:48 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 42 min |
| Jul 6, 3:35 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 40 min |
| Jul 9, 2:44 PM PDT | Severe Thunderstorm Warning | STO | Tuolumne | 46 min |
| Jul 9, 3:20 PM PDT | Severe Thunderstorm Warning | STO | Nevada, Placer | 25 min |
| Jul 9, 5:35 PM PDT | Severe Thunderstorm Warning | STO | Lassen, Plumas | 40 min |
| Jul 9, 5:35 PM PDT | Severe Thunderstorm Warning | STO | Tehama | 40 min |
| Jul 9, 5:42 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 33 min |
| Jul 9, 6:23 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 37 min |
| Jul 9, 7:17 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 28 min |
| Jul 9, 7:24 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 51 min |
| Jul 10, 1:29 PM PDT | Severe Thunderstorm Warning | REV | Plumas | 31 min |
| Jul 10, 2:15 PM PDT | Severe Thunderstorm Warning | REV | Alpine | 45 min |
| Jul 10, 3:00 PM PDT | Severe Thunderstorm Warning | REV | Nevada, Sierra | 30 min |
| Jul 10, 3:16 PM PDT | Severe Thunderstorm Warning | STO | Plumas | 44 min |
| Jul 10, 3:45 PM PDT | Severe Thunderstorm Warning | REV | Placer | 45 min |
| Jul 10, 3:56 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 34 min |
| Jul 11, 10:57 AM PDT | Severe Thunderstorm Warning | REV | Lassen, Plumas | 33 min |
| Jul 11, 1:22 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 23 min |
| Jul 11, 1:48 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 42 min |
| Jul 11, 2:34 PM PDT | Severe Thunderstorm Warning | EKA | Humboldt, Trinity | 41 min |
| Jul 11, 3:14 PM PDT | Severe Thunderstorm Warning | EKA | Humboldt, Trinity | 46 min |
| Jul 13, 7:38 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 67 min |
| Jul 14, 3:34 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 26 min |
| Jul 14, 3:55 PM PDT | Severe Thunderstorm Warning | STO | Lake | 35 min |
| Jul 14, 4:58 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 32 min |
| Aug 8, 2:24 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 66 min |
| Aug 11, 2:49 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 41 min |
| Aug 11, 9:10 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 35 min |
| Aug 11, 10:19 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 41 min |
| Aug 12, 4:32 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 58 min |
| Aug 12, 5:28 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 62 min |
| Aug 12, 8:38 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 67 min |
| Aug 14, 5:52 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 38 min |
| Sep 1, 1:14 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 46 min |
| Sep 1, 1:55 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 65 min |
| Sep 3, 2:58 PM PDT | Severe Thunderstorm Warning | LOX | Ventura | 32 min |
| Sep 25, 4:10 AM PDT | Severe Thunderstorm Warning | HNX | Madera, Mariposa | 50 min |
| Dec 2, 2:00 PM PST | Severe Thunderstorm Warning | STO | Nevada | 40 min |
| Dec 2, 2:40 PM PST | Severe Thunderstorm Warning | STO | Nevada | 35 min |
| Dec 20, 4:34 PM PST | Severe Thunderstorm Warning | MTR | Santa Clara, Santa Cruz | 26 min |
| Dec 20, 5:00 PM PST | Severe Thunderstorm Warning | MTR | Santa Clara | 15 min |
| Dec 20, 7:00 PM PST | Severe Thunderstorm Warning | MTR | Santa Clara, Santa Cruz | 30 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Tehama County9
- San Bernardino County7
- Trinity County7
- Siskiyou County6
- Butte County5
- San Diego County4
- Lake County4
- Nevada County4
- Plumas County4
- Madera County3
- Fresno County3
- Riverside County3
- Santa Clara County3
- Glenn County2
- Colusa County2
- Yolo County2
- Merced County2
- Placer County2
- Lassen County2
- Humboldt County2
- Imperial County2
- Santa Cruz County2
- Orange County1
- San Luis Obispo County1
- Mendocino County1
- Monterey County1
- Kern County1
- Kings County1
- Tulare County1
- Tuolumne County1
- Alpine County1
- Sierra County1
- Ventura County1
- Mariposa County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20002002
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.