Alert archive / California / 2011
Weather alerts in California, September 2011
291 weather alerts in September 2011, 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 September 2011. Tap one for its archive.
- Alerts
- 291
- Warnings
- 97
- Watches
- 19
- Advisories
- 74
- Busiest day
- September 13, 201164 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Sep 1, 1:31 PM PDT | Fire Weather Watch | MFR | Siskiyou | 16 hr |
| Sep 1, 1:31 PM PDT | Red Flag Warning | MFR | Siskiyou | 45 hr |
| Sep 2, 2:21 PM PDT | Small Craft Advisory | MTR | 7 hr | |
| Sep 3, 3:13 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 3, 10:16 AM PDT | Coastal Flood Statement | LOX | Los Angeles | 59 hr |
| Sep 3, 2:27 PM PDT | Small Craft Advisory | LOX | 67 hr | |
| Sep 3, 9:47 PM PDT | Small Craft Advisory | MTR | 23 hr | |
| Sep 4, 9:03 PM PDT | Small Craft Advisory | MTR | 24 hr | |
| Sep 5, 8:07 AM PDT | Special Marine Warning | SGX | 53 min | |
| Sep 5, 3:57 PM PDT | Areal Flood Advisory | PSR | Imperial | 2 hr |
| Sep 5, 3:58 PM PDT | Dust Storm Warning | PSR | 2 hr | |
| Sep 5, 4:19 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 41 min |
| Sep 6, 11:55 AM PDT | Fire Weather Watch | REV | Lassen, Modoc, Plumas, Sierra | 26 hr |
| Sep 6, 2:44 PM PDT | Fire Weather Watch | MFR | Modoc, Siskiyou | 48 hr |
| Sep 6, 4:45 PM PDT | Small Craft Advisory | MTR | 6 hr | |
| Sep 6, 9:03 PM PDT | Small Craft Advisory | LOX | 6 hr | |
| Sep 7, 2:43 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 7, 5:07 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 41 hr |
| Sep 7, 10:09 AM PDT | Fire Weather Watch | LOX | 6 hr | |
| Sep 7, 11:54 AM PDT | Fire Weather Watch | EKA | 27 hr | |
| Sep 7, 1:50 PM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 21 hr |
| Sep 7, 2:10 PM PDT | Small Craft Advisory | LOX | 45 hr | |
| Sep 7, 2:27 PM PDT | Fire Weather Watch | STO | 45 hr | |
| Sep 7, 2:42 PM PDT | Small Craft Advisory | MTR | 60 hr | |
| Sep 7, 2:55 PM PDT | Gale Watch | EKA | 12 hr | |
| Sep 7, 3:45 PM PDT | Red Flag Warning | LOX | 38 hr | |
| Sep 7, 8:34 PM PDT | Small Craft Advisory | EKA | 3 days | |
| Sep 8, 3:18 AM PDT | Gale Warning | EKA | 54 hr | |
| Sep 8, 4:18 AM PDT | Excessive Heat Warning | PSR | 16 hr | |
| Sep 8, 4:47 AM PDT | Dense Fog Advisory | LOX | 4 hr | |
| Sep 8, 4:47 AM PDT | Wind Advisory | LOX | 22 hr | |
| Sep 8, 5:51 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 17 hr |
| Sep 8, 9:04 AM PDT | Small Craft Advisory for Winds | SGX | 19 hr | |
| Sep 8, 10:36 AM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 24 hr |
| Sep 8, 11:56 AM PDT | Fire Weather Watch | HNX | 17 hr | |
| Sep 8, 2:44 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 3 days |
| Sep 8, 3:21 PM PDT | Red Flag Warning | EKA | 51 hr | |
| Sep 8, 3:41 PM PDT | Red Flag Warning | STO | 14 hr | |
| Sep 8, 5:03 PM PDT | Special Weather Statement | REV | Modoc | 42 min |
| Sep 9, 2:39 AM PDT | Dense Fog Advisory | SGX | San Diego | 5 hr |
| Sep 9, 4:58 AM PDT | Red Flag Warning | HNX | 40 hr | |
| Sep 9, 5:14 AM PDT | Red Flag Warning | STO | 39 hr | |
| Sep 9, 12:02 PM PDT | Fire Weather Watch | MTR | Alameda, Contra Costa, Monterey, San Benito, San Mateo, Santa Clara and 1 more | 16 hr |
| Sep 9, 12:02 PM PDT | Red Flag Warning | MTR | Alameda, Contra Costa, Monterey, San Benito, San Mateo, Santa Clara and 1 more | 23 hr |
| Sep 9, 12:47 PM PDT | Fire Weather Watch | HNX | 17 hr | |
| Sep 9, 2:24 PM PDT | Fire Weather Watch | LOX | Santa Barbara | 14 hr |
| Sep 9, 2:29 PM PDT | Special Weather Statement | HNX | Mariposa | 46 min |
| Sep 9, 4:41 PM PDT | Special Weather Statement | STO | San Joaquin | 64 min |
| Sep 9, 8:31 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 10, 12:58 AM PDT | Special Weather Statement | PSR | Riverside | 47 min |
| Sep 10, 1:58 AM PDT | Areal Flood Advisory | PSR | Imperial | 2 hr |
| Sep 10, 3:37 AM PDT | Special Weather Statement | LOX | San Luis Obispo | 53 min |
| Sep 10, 3:40 AM PDT | Special Weather Statement | SGX | 50 min | |
| Sep 10, 3:49 AM PDT | Flood Watch | LOX | Santa Barbara | 36 hr |
| Sep 10, 3:49 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 116 min |
| Sep 10, 6:57 AM PDT | Special Weather Statement | LOX | Santa Barbara | 33 min |
| Sep 10, 7:07 AM PDT | Special Weather Statement | SGX | Orange | 53 min |
| Sep 10, 7:25 AM PDT | Special Marine Warning | LOX | 50 min | |
| Sep 10, 7:37 AM PDT | Severe Thunderstorm Warning | SGX | Orange | 23 min |
| Sep 10, 7:41 AM PDT | Special Weather Statement | HNX | Kern | 64 min |
| Sep 10, 7:43 AM PDT | Small Craft Advisory | MTR | 15 hr | |
| Sep 10, 8:13 AM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 47 min |
| Sep 10, 8:16 AM PDT | Special Marine Warning | LOX | 29 min | |
| Sep 10, 9:29 AM PDT | Special Weather Statement | LOX | 46 min | |
| Sep 10, 9:30 AM PDT | Special Weather Statement | SGX | Orange | 45 min |
| Sep 10, 10:06 AM PDT | Special Weather Statement | LOX | Ventura | 39 min |
| Sep 10, 10:08 AM PDT | Special Marine Warning | LOX | 22 min | |
| Sep 10, 10:58 AM PDT | Special Weather Statement | LOX | Ventura | 47 min |
| Sep 10, 11:21 AM PDT | Special Weather Statement | LOX | Los Angeles | 24 min |
| Sep 10, 11:45 AM PDT | Special Marine Warning | LOX | 30 min | |
| Sep 10, 11:52 AM PDT | Severe Thunderstorm Warning | LOX | Santa Barbara | 23 min |
| Sep 10, 12:10 PM PDT | Special Weather Statement | LOX | Los Angeles | 35 min |
| Sep 10, 12:15 PM PDT | Special Weather Statement | LOX | Ventura | 30 min |
| Sep 10, 12:20 PM PDT | Severe Thunderstorm Warning | LOX | Santa Barbara | 25 min |
| Sep 10, 12:45 PM PDT | Special Weather Statement | LOX | Ventura | 30 min |
| Sep 10, 12:49 PM PDT | Special Weather Statement | LOX | Ventura | 26 min |
| Sep 10, 1:31 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 59 min |
| Sep 10, 1:45 PM PDT | Special Weather Statement | LOX | Los Angeles | 30 min |
| Sep 10, 2:16 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 29 min |
| Sep 10, 2:48 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 2 hr |
| Sep 10, 2:49 PM PDT | Small Craft Advisory for Hazardous Seas | EKA | 11 hr | |
| Sep 10, 2:51 PM PDT | Flash Flood Warning | LOX | Los Angeles | 24 min |
| Sep 10, 2:51 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 39 min |
| Sep 10, 3:17 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 10, 3:30 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 10, 3:35 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 25 min |
| Sep 10, 3:39 PM PDT | Mesoscale Discussion | SPC | Kern | 3 hr |
| Sep 10, 4:16 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 29 min |
| Sep 10, 4:22 PM PDT | Special Weather Statement | HNX | 53 min | |
| Sep 10, 4:22 PM PDT | Special Weather Statement | MTR | San Benito | 23 min |
| Sep 10, 4:34 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Sep 10, 4:40 PM PDT | Special Weather Statement | REV | Alpine | 35 min |
| Sep 10, 4:41 PM PDT | Special Weather Statement | HNX | Kern | 49 min |
| Sep 10, 4:41 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 64 min |
| Sep 10, 4:41 PM PDT | Flash Flood Warning | MTR | San Benito | 34 min |
| Sep 10, 4:51 PM PDT | Special Weather Statement | SGX | 54 min | |
| Sep 10, 5:04 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 10, 5:20 PM PDT | Special Weather Statement | STO | El Dorado | 40 min |
| Sep 10, 5:23 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 28 min |
| Sep 10, 5:29 PM PDT | Special Weather Statement | HNX | Kern | 46 min |
| Sep 10, 5:33 PM PDT | Special Weather Statement | SGX | 57 min | |
| Sep 10, 5:37 PM PDT | Special Weather Statement | SGX | 83 min | |
| Sep 10, 5:42 PM PDT | Special Weather Statement | LOX | Ventura | 63 min |
| Sep 10, 5:47 PM PDT | Special Weather Statement | HNX | 43 min | |
| Sep 10, 5:57 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 40 min |
| Sep 10, 6:24 PM PDT | Special Weather Statement | HNX | 51 min | |
| Sep 10, 6:39 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 51 min |
| Sep 10, 6:44 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Sep 10, 6:46 PM PDT | Special Weather Statement | HNX | 44 min | |
| Sep 10, 7:03 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 91 min |
| Sep 10, 7:19 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 26 min |
| Sep 10, 7:31 PM PDT | Special Weather Statement | PSR | Riverside | 44 min |
| Sep 10, 7:36 PM PDT | Special Weather Statement | LOX | 54 min | |
| Sep 10, 8:19 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 20 min |
| Sep 10, 8:21 PM PDT | Special Weather Statement | HNX | Kern | 84 min |
| Sep 10, 8:21 PM PDT | Special Weather Statement | LOX | Santa Barbara | 54 min |
| Sep 10, 9:14 PM PDT | Special Weather Statement | HNX | 91 min | |
| Sep 10, 9:35 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 40 min |
| Sep 10, 10:12 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Sep 10, 10:32 PM PDT | Areal Flood Advisory | VEF | Inyo | 3 hr |
| Sep 11, 8:37 AM PDT | Small Craft Advisory | MTR | 12 hr | |
| Sep 11, 1:12 PM PDT | Special Weather Statement | STO | 63 min | |
| Sep 11, 1:34 PM PDT | Special Weather Statement | STO | Sierra | 41 min |
| Sep 11, 2:07 PM PDT | Special Weather Statement | HNX | Mariposa | 38 min |
| Sep 11, 2:18 PM PDT | Special Weather Statement | STO | Nevada | 42 min |
| Sep 11, 2:42 PM PDT | Special Weather Statement | MFR | Modoc | 33 min |
| Sep 11, 2:58 PM PDT | Special Weather Statement | REV | Sierra | 32 min |
| Sep 11, 3:51 PM PDT | Special Weather Statement | STO | Plumas | 39 min |
| Sep 11, 3:58 PM PDT | Special Weather Statement | REV | Sierra | 47 min |
| Sep 11, 4:04 PM PDT | Areal Flood Advisory | VEF | Inyo | 85 min |
| Sep 11, 4:11 PM PDT | Severe Thunderstorm Warning | STO | Plumas, Sierra | 34 min |
| Sep 11, 4:18 PM PDT | Special Weather Statement | HNX | Kern | 57 min |
| Sep 11, 4:23 PM PDT | Special Weather Statement | MFR | Modoc | 37 min |
| Sep 11, 4:30 PM PDT | Special Weather Statement | STO | Alpine | 45 min |
| Sep 11, 4:38 PM PDT | Areal Flood Advisory | HNX | Kern | 3 hr |
| Sep 11, 4:52 PM PDT | Special Weather Statement | STO | Plumas | 38 min |
| Sep 11, 4:54 PM PDT | Flash Flood Warning | REV | Placer | 109 min |
| Sep 11, 4:58 PM PDT | Special Weather Statement | REV | Sierra | 62 min |
| Sep 11, 5:34 PM PDT | Special Weather Statement | HNX | Kern | 86 min |
| Sep 11, 6:27 PM PDT | Special Weather Statement | STO | El Dorado | 48 min |
| Sep 11, 6:43 PM PDT | Areal Flood Advisory | HNX | Kern | 64 min |
| Sep 11, 7:19 PM PDT | Special Weather Statement | STO | Amador | 41 min |
| Sep 12, 2:17 AM PDT | Small Craft Advisory | MTR | 19 hr | |
| Sep 12, 3:58 AM PDT | Flash Flood Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 18 hr |
| Sep 12, 5:00 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 17 hr |
| Sep 12, 2:17 PM PDT | Special Weather Statement | REV | Lassen | 43 min |
| Sep 12, 2:43 PM PDT | Special Weather Statement | STO | Nevada, Placer | 32 min |
| Sep 12, 3:00 PM PDT | Special Weather Statement | STO | 45 min | |
| Sep 12, 3:15 PM PDT | Special Weather Statement | REV | Lassen | 60 min |
| Sep 12, 3:33 PM PDT | Special Weather Statement | STO | Sierra | 42 min |
| Sep 12, 3:38 PM PDT | Dust Storm Warning | PSR | 82 min | |
| Sep 12, 3:58 PM PDT | Severe Thunderstorm Warning | STO | Plumas | 32 min |
| Sep 12, 4:05 PM PDT | Special Weather Statement | REV | Sierra | 40 min |
| Sep 12, 4:22 PM PDT | Special Weather Statement | STO | 38 min | |
| Sep 12, 4:53 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 37 min |
| Sep 12, 5:02 PM PDT | Severe Thunderstorm Warning | MFR | Modoc, Siskiyou | 28 min |
| Sep 12, 5:11 PM PDT | Special Weather Statement | REV | Lassen | 34 min |
| Sep 12, 5:28 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 32 min |
| Sep 12, 5:55 PM PDT | Special Weather Statement | STO | 50 min | |
| Sep 12, 5:58 PM PDT | Flash Flood Warning | REV | Lassen | 88 min |
| Sep 12, 5:59 PM PDT | Special Weather Statement | MFR | Siskiyou | 16 min |
| Sep 12, 6:21 PM PDT | Special Weather Statement | MFR | Siskiyou | 24 min |
| Sep 12, 8:45 PM PDT | Special Weather Statement | EKA | Trinity | 30 min |
| Sep 12, 8:48 PM PDT | Small Craft Advisory | MTR | 5 days | |
| Sep 13, 1:53 AM PDT | Flash Flood Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 20 hr |
| Sep 13, 2:33 AM PDT | Small Craft Advisory | EKA | 4 days | |
| Sep 13, 2:51 AM PDT | Small Craft Advisory | MTR | 7 days | |
| Sep 13, 3:36 AM PDT | Flash Flood Watch | VEF | San Bernardino | 15 hr |
| Sep 13, 3:46 AM PDT | Special Weather Statement | SGX | San Diego | 44 min |
| Sep 13, 3:54 AM PDT | Flash Flood Watch | PSR | 17 hr | |
| Sep 13, 3:56 AM PDT | Special Weather Statement | SGX | San Diego | 34 min |
| Sep 13, 3:59 AM PDT | Severe Thunderstorm Warning | SGX | San Diego | 29 min |
| Sep 13, 4:57 AM PDT | Special Weather Statement | SGX | Riverside | 63 min |
| Sep 13, 5:03 AM PDT | Special Weather Statement | SGX | San Diego | 42 min |
| Sep 13, 5:42 AM PDT | Flash Flood Watch | SGX | Riverside, San Bernardino, San Diego | 15 hr |
| Sep 13, 5:46 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 119 min |
| Sep 13, 6:22 AM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 38 min |
| Sep 13, 6:31 AM PDT | Flash Flood Warning | VEF | San Bernardino | 86 min |
| Sep 13, 6:47 AM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 28 min |
| Sep 13, 6:59 AM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 46 min |
| Sep 13, 7:05 AM PDT | Severe Thunderstorm Warning | PSR | Riverside, San Bernardino | 55 min |
| Sep 13, 7:10 AM PDT | Flash Flood Warning | PSR | Riverside | 110 min |
| Sep 13, 7:15 AM PDT | Mesoscale Discussion | SPC | Riverside | 90 min |
| Sep 13, 7:55 AM PDT | Severe Thunderstorm Warning | PSR | Riverside, San Bernardino | 55 min |
| Sep 13, 8:01 AM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
| Sep 13, 8:21 AM PDT | Areal Flood Advisory | SGX | Riverside, San Diego | 3 hr |
| Sep 13, 9:09 AM PDT | Flash Flood Warning | VEF | San Bernardino | 111 min |
| Sep 13, 9:18 AM PDT | Areal Flood Advisory | PSR | Riverside | 3 hr |
| Sep 13, 9:38 AM PDT | Severe Thunderstorm Warning | PSR | Riverside | 33 min |
| Sep 13, 9:56 AM PDT | Flash Flood Warning | VEF | San Bernardino | 83 min |
| Sep 13, 10:00 AM PDT | Severe Thunderstorm Warning | PSR | Imperial, Riverside | 60 min |
| Sep 13, 10:22 AM PDT | Flash Flood Warning | VEF | San Bernardino | 113 min |
| Sep 13, 10:53 AM PDT | Severe Thunderstorm Warning | PSR | Riverside, San Bernardino | 40 min |
| Sep 13, 11:09 AM PDT | Flash Flood Warning | VEF | San Bernardino | 27 min |
| Sep 13, 11:17 AM PDT | Areal Flood Advisory | SGX | Riverside, San Diego | 3 hr |
| Sep 13, 12:00 PM PDT | Flash Flood Warning | PSR | Riverside, San Bernardino | 3 hr |
| Sep 13, 1:08 PM PDT | Flash Flood Warning | SGX | San Bernardino | 112 min |
| Sep 13, 1:18 PM PDT | Areal Flood Advisory | LOX | Los Angeles | 2 hr |
| Sep 13, 1:20 PM PDT | Dust Storm Warning | PSR | 100 min | |
| Sep 13, 1:20 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 40 min |
| Sep 13, 1:21 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 54 min |
| Sep 13, 2:12 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 63 min |
| Sep 13, 2:20 PM PDT | Areal Flood Advisory | SGX | Riverside, San Bernardino | 115 min |
| Sep 13, 2:30 PM PDT | Special Weather Statement | SGX | 60 min | |
| Sep 13, 2:47 PM PDT | Special Weather Statement | LOX | Los Angeles | 58 min |
| Sep 13, 2:52 PM PDT | Special Weather Statement | SGX | 53 min | |
| Sep 13, 2:55 PM PDT | Severe Thunderstorm Warning | SGX | Riverside, San Bernardino | 29 min |
| Sep 13, 3:00 PM PDT | Flash Flood Warning | PSR | Riverside | 106 min |
| Sep 13, 3:11 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles, Ventura | 64 min |
| Sep 13, 3:15 PM PDT | Special Weather Statement | PSR | Imperial | 45 min |
| Sep 13, 3:34 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 13, 3:34 PM PDT | Areal Flood Advisory | SGX | Riverside, San Bernardino | 3 hr |
| Sep 13, 3:51 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 24 min |
| Sep 13, 3:56 PM PDT | Mesoscale Discussion | SPC | Imperial, Riverside | 94 min |
| Sep 13, 4:08 PM PDT | Flash Flood Warning | LOX | Santa Barbara, Ventura | 3 hr |
| Sep 13, 4:14 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 16 min |
| Sep 13, 4:40 PM PDT | Flash Flood Warning | LOX | San Luis Obispo, Santa Barbara | 3 hr |
| Sep 13, 4:50 PM PDT | Special Weather Statement | LOX | San Luis Obispo | 55 min |
| Sep 13, 4:54 PM PDT | Special Weather Statement | PSR | Imperial | 21 min |
| Sep 13, 5:33 PM PDT | Flash Flood Warning | LOX | San Luis Obispo | 3 hr |
| Sep 13, 5:45 PM PDT | Flash Flood Warning | LOX | Santa Barbara | 3 hr |
| Sep 13, 6:08 PM PDT | Areal Flood Advisory | SGX | San Diego | 82 min |
| Sep 13, 6:10 PM PDT | Special Weather Statement | STO | Placer | 50 min |
| Sep 13, 7:13 PM PDT | Small Craft Advisory | LOX | 4 days | |
| Sep 13, 7:13 PM PDT | Special Weather Statement | STO | Sierra | 47 min |
| Sep 13, 7:30 PM PDT | Special Weather Statement | REV | Sierra | 30 min |
| Sep 13, 7:50 PM PDT | Severe Thunderstorm Warning | STO | Plumas, Sierra | 40 min |
| Sep 13, 7:59 PM PDT | Severe Thunderstorm Warning | REV | Plumas | 31 min |
| Sep 13, 8:07 PM PDT | Severe Thunderstorm Warning | STO | Plumas | 38 min |
| Sep 13, 8:29 PM PDT | Severe Thunderstorm Warning | STO | Plumas, Sierra, Yuba | 61 min |
| Sep 13, 9:26 PM PDT | Special Weather Statement | STO | Butte | 34 min |
| Sep 14, 2:34 PM PDT | Areal Flood Advisory | SGX | Riverside, San Bernardino | 3 hr |
| Sep 14, 4:03 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 14, 4:16 PM PDT | Special Weather Statement | LOX | Los Angeles | 59 min |
| Sep 14, 5:31 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 2 hr |
| Sep 14, 5:36 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 39 min |
| Sep 14, 6:41 PM PDT | Special Weather Statement | SGX | 64 min | |
| Sep 15, 2:11 PM PDT | Areal Flood Advisory | SGX | San Diego | 109 min |
| Sep 15, 6:21 PM PDT | Wind Advisory | HNX | 5 hr | |
| Sep 15, 9:12 PM PDT | Small Craft Advisory | MTR | 26 hr | |
| Sep 16, 9:47 AM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 22 hr |
| Sep 16, 8:52 PM PDT | Small Craft Advisory | EKA | 18 hr | |
| Sep 17, 2:28 PM PDT | Small Craft Advisory | LOX | 13 hr | |
| Sep 18, 2:52 AM PDT | Small Craft Advisory | MTR | 12 hr | |
| Sep 19, 2:35 AM PDT | Small Craft Advisory | EKA | 4 days | |
| Sep 19, 4:13 PM PDT | Special Weather Statement | REV | Mono | 32 min |
| Sep 19, 5:22 PM PDT | Special Weather Statement | REV | Mono | 38 min |
| Sep 21, 4:43 AM PDT | Marine Dense Fog Advisory | MTR | 4 hr | |
| Sep 21, 4:43 AM PDT | Small Craft Advisory | MTR | 46 hr | |
| Sep 22, 2:20 AM PDT | Small Craft Advisory | MTR | 21 hr | |
| Sep 22, 1:57 PM PDT | Fire Weather Watch | MTR | Monterey | 16 hr |
| Sep 22, 9:49 PM PDT | Dense Fog Advisory | LOX | 11 hr | |
| Sep 23, 2:56 AM PDT | Small Craft Advisory | MTR | 11 hr | |
| Sep 23, 3:29 AM PDT | Red Flag Warning | LOX | Santa Barbara | 26 hr |
| Sep 23, 6:19 AM PDT | Red Flag Warning | MTR | Monterey, San Benito | 23 hr |
| Sep 23, 9:09 AM PDT | Red Flag Warning | HNX | 20 hr | |
| Sep 23, 12:35 PM PDT | Special Weather Statement | SGX | San Diego | 55 min |
| Sep 23, 12:58 PM PDT | Special Weather Statement | SGX | Orange | 62 min |
| Sep 23, 2:31 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 32 hr |
| Sep 23, 2:33 PM PDT | Special Weather Statement | SGX | San Diego | 57 min |
| Sep 23, 3:05 PM PDT | Special Weather Statement | SGX | 55 min | |
| Sep 23, 3:13 PM PDT | Small Craft Advisory | EKA | 71 hr | |
| Sep 23, 3:23 PM PDT | Fire Weather Watch | REV | 36 hr | |
| Sep 23, 4:38 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 37 min |
| Sep 23, 4:41 PM PDT | Special Weather Statement | SGX | 64 min | |
| Sep 23, 5:14 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 31 min |
| Sep 23, 8:03 PM PDT | Special Weather Statement | HNX | Kings | 42 min |
| Sep 23, 8:21 PM PDT | Special Weather Statement | HNX | Kern | 54 min |
| Sep 23, 8:53 PM PDT | Special Weather Statement | HNX | Fresno, Kings | 52 min |
| Sep 23, 9:33 PM PDT | Small Craft Advisory | MTR | 87 min | |
| Sep 23, 10:29 PM PDT | Special Weather Statement | LOX | San Luis Obispo | 61 min |
| Sep 24, 2:47 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 24, 8:56 AM PDT | Special Weather Statement | HNX | Merced | 34 min |
| Sep 24, 1:59 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 30 hr |
| Sep 24, 2:16 PM PDT | Special Weather Statement | HNX | Mariposa | 44 min |
| Sep 24, 3:09 PM PDT | Special Weather Statement | HNX | Mariposa | 36 min |
| Sep 24, 4:18 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 42 min |
| Sep 24, 9:20 PM PDT | Special Weather Statement | HNX | Kings | 7 hr |
| Sep 25, 3:08 AM PDT | Small Craft Advisory | LOX | 66 hr | |
| Sep 25, 9:40 AM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 22 hr |
| Sep 25, 2:27 PM PDT | Small Craft Advisory | MTR | 66 hr | |
| Sep 26, 2:54 AM PDT | Small Craft Advisory | MTR | 56 hr | |
| Sep 26, 1:58 PM PDT | Frost Advisory | MFR | Modoc | 18 hr |
| Sep 26, 2:23 PM PDT | Small Craft Advisory | EKA | 61 hr | |
| Sep 27, 2:36 PM PDT | Small Craft Advisory for Rough Bar | MTR | 24 hr | |
| Sep 29, 2:17 PM PDT | Small Craft Advisory | MTR | 6 hr | |
| Sep 30, 4:12 AM PDT | Small Craft Advisory | MTR | 118 min | |
| Sep 30, 6:10 AM PDT | Small Craft Advisory | MTR | 15 hr | |
| Sep 30, 1:44 PM PDT | Special Weather Statement | SGX | San Diego | 61 min |
| Sep 30, 2:46 PM PDT | Areal Flood Advisory | SGX | San Diego | 2 hr |
| Sep 30, 3:20 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 29 hr |
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 | 45 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 97 |
| Flooding | |
| Flash Flood Warning | 26 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| Areal Flood Advisory | 23 |
| Heat | |
| Excessive Heat Warning | 1 |
| Cold | |
| Frost Advisory | 3 |
| Wind and dust | |
| Dust Storm Warning | 3 |
| Lake Wind Advisory | 3 |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 16 |
| Fire Weather Watch | 12 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Coast and beach | |
| Coastal Flood Statement | 1 |
| Marine | |
| Gale Warning | 1 |
| Special Marine Warning | 5 |
| Gale Watch | 1 |
| Marine Dense Fog Advisory | 1 |
| Small Craft Advisory | 36 |
| Small Craft Advisory for Hazardous Seas | 1 |
| Small Craft Advisory for Rough Bar | 1 |
| Small Craft Advisory for Winds | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County38
- Riverside County23
- Los Angeles County21
- Modoc County15
- Sierra County15
- San Diego County14
- Siskiyou County13
- Plumas County12
- Kern County12
- Lassen County10
- Santa Barbara County10
- Imperial County9
- Placer County8
- Ventura County8
- Alpine County7
- El Dorado County7
- Nevada County7
- San Benito County5
- San Luis Obispo County5
- Monterey County4
- Mariposa County4
- Orange County4
- Mono County4
- Kings County3
- Alameda County2
- Contra Costa County2
- San Mateo County2
- Santa Clara County2
- Santa Cruz County2
- Inyo County2
- San Joaquin County1
- Amador County1
- Trinity County1
- Yuba County1
- Butte County1
- Fresno County1
- Merced County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.