Weather alerts in California, 2001
132 weather alerts in 2001, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2001. Tap one for its archive.
- Alerts
- 132
- Warnings
- 130
- Watches
- 2
- Advisories
- 0
- Busiest month
- July57 alerts
- Busiest day
- July 7, 200115 alerts
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 10, 9:30 PM PST | Flash Flood Warning | LOX | Santa Barbara, Ventura | 3 hr |
| Jan 10, 11:58 PM PST | Flash Flood Warning | LOX | Los Angeles, Santa Barbara, Ventura | 62 min |
| Jan 11, 2:00 AM PST | Flash Flood Warning | SGX | Orange | 14 hr |
| Jan 11, 3:00 AM PST | Flash Flood Warning | LOX | Los Angeles, Ventura | 3 hr |
| Jan 24, 8:25 PM PST | Severe Thunderstorm Warning | STO | Tehama | 35 min |
| Jan 25, 12:15 PM PST | Severe Thunderstorm Watch | SPC | Alameda, Contra Costa, Marin, San Mateo, Santa Clara, Santa Cruz | 5 hr |
| 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, 3:12 PM PST | Flash Flood Warning | SGX | San Diego | 63 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 |
| Feb 27, 4:11 PM PST | Flash Flood Warning | SGX | San Diego | 49 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 21, 11:36 AM PDT | Tornado Warning | VEF | San Bernardino | 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 5, 1:39 PM PDT | Flash Flood Warning | HNX | Kern | 3 hr |
| Jul 6, 1:59 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 6, 2:48 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 42 min |
| Jul 6, 2:53 PM PDT | Flash Flood Warning | SGX | Riverside | 37 min |
| Jul 6, 3:30 PM PDT | Flash Flood Warning | HNX | Kern | 2 hr |
| Jul 6, 3:35 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 40 min |
| Jul 6, 4:54 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 6, 5:00 PM PDT | Flash Flood Warning | SGX | San Diego | 60 min |
| Jul 6, 5:00 PM PDT | Flash Flood Warning | SGX | San Diego | 30 min |
| Jul 7, 11:45 AM PDT | Flash Flood Warning | SGX | San Bernardino | 75 min |
| Jul 7, 12:49 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 7, 12:50 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Jul 7, 12:53 PM PDT | Tornado Warning | VEF | San Bernardino | 27 min |
| Jul 7, 1:05 PM PDT | Flash Flood Warning | PSR | Riverside | 25 min |
| Jul 7, 1:35 PM PDT | Tornado Warning | VEF | San Bernardino | 40 min |
| Jul 7, 2:25 PM PDT | Flash Flood Warning | SGX | Riverside | 65 min |
| Jul 7, 2:53 PM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 2 hr |
| Jul 7, 3:00 PM PDT | Flash Flood Warning | LOX | Ventura | 30 min |
| Jul 7, 3:26 PM PDT | Flash Flood Warning | HNX | Kern | 2 hr |
| Jul 7, 3:59 PM PDT | Flash Flood Warning | LOX | Los Angeles | 61 min |
| Jul 7, 4:26 PM PDT | Flash Flood Warning | VEF | Inyo, San Bernardino | 3 hr |
| Jul 7, 4:46 PM PDT | Flash Flood Warning | LOX | Santa Barbara | 119 min |
| Jul 7, 5:00 PM PDT | Flash Flood Warning | LOX | Los Angeles | 2 hr |
| Jul 7, 5:13 PM PDT | Flash Flood Warning | SGX | San Bernardino | 47 min |
| Jul 7, 5:28 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 7, 7:32 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 8, 5:55 PM PDT | Flash Flood Warning | REV | Nevada, Placer | 50 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 10, 4:20 PM PDT | Flash Flood Warning | REV | Alpine, Mono | 55 min |
| Jul 10, 4:40 PM PDT | Flash Flood Warning | REV | Nevada, Placer | 60 min |
| Jul 10, 6:45 PM PDT | Flash Flood Warning | REV | Mono | 45 min |
| Jul 10, 7:35 PM PDT | Flash Flood Warning | REV | Mono | 40 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, 4:27 PM PDT | Flash Flood Warning | MFR | Siskiyou | 3 hr |
| Jul 14, 4:58 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 32 min |
| Jul 14, 5:21 PM PDT | Flash Flood Warning | EKA | Trinity | 54 min |
| Jul 14, 6:09 PM PDT | Flash Flood Warning | MFR | Siskiyou | 2 hr |
| Aug 8, 2:24 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 66 min |
| Aug 8, 2:31 PM PDT | Flash Flood Warning | VEF | San Bernardino | 119 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 11, 10:30 PM PDT | Flash Flood Warning | PSR | Imperial | |
| 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, 6:42 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 12, 8:38 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 67 min |
| Aug 12, 9:47 PM PDT | Flash Flood Warning | PSR | Imperial, Riverside | 73 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 2, 1:28 PM PDT | Flash Flood Warning | SGX | San Diego | 92 min |
| Sep 2, 2:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 2, 3:55 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Sep 2, 4:34 PM PDT | Flash Flood Warning | SGX | Riverside | 86 min |
| Sep 3, 1:15 PM PDT | Flash Flood Warning | LOX | Ventura | 90 min |
| Sep 3, 1:45 PM PDT | Flash Flood Warning | LOX | Santa Barbara | 90 min |
| Sep 3, 2:45 PM PDT | Flash Flood Warning | LOX | Ventura | 90 min |
| Sep 3, 2:58 PM PDT | Severe Thunderstorm Warning | LOX | Ventura | 32 min |
| Sep 3, 4:35 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 3, 4:55 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Sep 3, 6:00 PM PDT | Flash Flood Warning | REV | Mono | 60 min |
| Sep 25, 4:10 AM PDT | Severe Thunderstorm Warning | HNX | Madera, Mariposa | 50 min |
| Dec 1, 1:45 PM PST | Flash Flood Warning | MTR | Marin | 4 hr |
| Dec 2, 2:50 AM PST | Special Marine Warning | EKA | 85 min | |
| Dec 2, 2:50 AM PST | Special Marine Warning | EKA | 85 min | |
| Dec 2, 12:07 PM PST | Special Marine Warning | EKA | 23 min | |
| Dec 2, 1:00 PM PST | Tornado Watch | SPC | Amador, Butte, Colusa, El Dorado, Glenn, Nevada and 7 more | 5 hr |
| 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 product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 73 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 1 |
| Flooding | |
| Flash Flood Warning | 51 |
| Marine | |
| Special Marine Warning | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County24
- Tehama County10
- Riverside County9
- San Diego County9
- Trinity County8
- Siskiyou County8
- Ventura County7
- Nevada County7
- Butte County6
- Placer County5
- Santa Barbara County4
- Los Angeles County4
- Santa Clara County4
- Lake County4
- Kern County4
- Plumas County4
- Mono County4
- Imperial County4
- Santa Cruz County3
- Madera County3
- Fresno County3
- Glenn County3
- Colusa County3
- Yolo County3
- Inyo County3
- Orange County2
- Marin County2
- Merced County2
- Lassen County2
- Alpine County2
- Humboldt County2
- Alameda County1
- Contra Costa County1
- San Mateo County1
- San Luis Obispo County1
- Mendocino County1
- Monterey County1
- Kings County1
- Tulare County1
- Tuolumne 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.