Alert archive / California / 2012
Weather alerts in California, September 2012
193 weather alerts in September 2012, 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 2012. Tap one for its archive.
- Alerts
- 193
- Warnings
- 67
- Watches
- 24
- Advisories
- 81
- Busiest day
- September 10, 201239 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 |
|---|---|---|---|---|
| Aug 31, 6:19 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 116 min |
| Aug 31, 9:38 PM PDT | Small Craft Advisory | MTR | 23 hr | |
| Sep 2, 2:30 AM PDT | Hazardous Seas Warning | EKA | 61 hr | |
| Sep 2, 5:50 PM PDT | Rip Current Statement | SGX | San Diego | 24 hr |
| Sep 2, 6:35 PM PDT | Small Craft Advisory | LOX | 14 hr | |
| Sep 2, 8:24 PM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 3, 3:02 AM PDT | Dense Fog Advisory | MTR | Monterey, San Mateo, Santa Cruz | 6 hr |
| Sep 3, 3:52 PM PDT | Areal Flood Advisory | PSR | Riverside | 79 min |
| Sep 3, 4:23 PM PDT | Blowing Dust Advisory | PSR | 97 min | |
| Sep 3, 4:23 PM PDT | Flash Flood Warning | PSR | Riverside | 112 min |
| Sep 3, 6:08 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 37 min |
| Sep 3, 6:41 PM PDT | Areal Flood Advisory | PSR | Riverside | 3 hr |
| Sep 3, 6:43 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 63 min |
| Sep 3, 7:42 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 4, 6:12 AM PDT | Fire Weather Watch | MFR | Modoc | 8 hr |
| Sep 4, 8:25 AM PDT | Small Craft Advisory | MTR | 13 hr | |
| Sep 4, 1:45 PM PDT | Special Weather Statement | PSR | Riverside | 45 min |
| Sep 4, 1:55 PM PDT | Flash Flood Warning | PSR | Riverside, San Bernardino | 95 min |
| Sep 4, 2:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 65 min |
| Sep 4, 2:09 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Sep 4, 2:40 PM PDT | Areal Flood Advisory | SGX | San Diego | 51 min |
| Sep 4, 2:42 PM PDT | Areal Flood Advisory | PSR | Riverside | 94 min |
| Sep 4, 2:54 PM PDT | Special Weather Statement | PSR | Riverside | 66 min |
| Sep 4, 3:18 PM PDT | Areal Flood Advisory | PSR | Riverside, San Bernardino | 80 min |
| Sep 4, 3:33 PM PDT | Special Weather Statement | PSR | Imperial | 57 min |
| Sep 4, 3:44 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 4, 3:56 PM PDT | Blowing Dust Advisory | PSR | 2 hr | |
| Sep 4, 3:57 PM PDT | Special Weather Statement | PSR | Riverside | 78 min |
| Sep 4, 3:59 PM PDT | Flash Flood Warning | SGX | San Diego | 81 min |
| Sep 4, 4:06 PM PDT | Areal Flood Advisory | SGX | Riverside | 114 min |
| Sep 4, 4:09 PM PDT | Flash Flood Warning | PSR | Imperial | 92 min |
| Sep 4, 4:57 PM PDT | Special Weather Statement | PSR | Riverside | 48 min |
| Sep 4, 5:24 PM PDT | Areal Flood Advisory | PSR | Imperial, Riverside | 78 min |
| Sep 4, 5:38 PM PDT | Special Weather Statement | PSR | Imperial | 37 min |
| Sep 5, 2:27 AM PDT | Small Craft Advisory | MTR | 19 hr | |
| Sep 5, 10:13 AM PDT | Red Flag Warning | STO | 17 hr | |
| Sep 5, 10:18 AM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 17 hr |
| Sep 5, 10:46 AM PDT | Red Flag Warning | MTR | Alameda, Contra Costa, Marin, Napa, Sonoma | 16 hr |
| Sep 5, 4:56 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 26 min |
| Sep 5, 5:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 5, 5:38 PM PDT | Areal Flood Advisory | PSR | Imperial | 112 min |
| Sep 5, 7:35 PM PDT | Areal Flood Advisory | PSR | Imperial | 115 min |
| Sep 6, 2:34 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 6, 2:55 PM PDT | Beach Hazards Statement | MTR | Monterey | 3 days |
| Sep 6, 7:04 PM PDT | Blowing Dust Advisory | PSR | 116 min | |
| Sep 7, 2:46 AM PDT | Small Craft Advisory | LOX | 4 days | |
| Sep 7, 3:02 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 7, 2:21 PM PDT | Small Craft Advisory | MTR | 60 hr | |
| Sep 7, 2:23 PM PDT | Fire Weather Watch | REV | Lassen, Modoc, Plumas, Sierra | 24 hr |
| Sep 7, 2:31 PM PDT | Areal Flood Advisory | PSR | Imperial, Riverside | 119 min |
| Sep 7, 3:34 PM PDT | Special Weather Statement | PSR | Imperial | 41 min |
| Sep 8, 3:28 AM PDT | Fire Weather Watch | MFR | Modoc | 11 hr |
| Sep 8, 2:12 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 30 hr |
| Sep 8, 2:30 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Sep 8, 2:43 PM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 29 hr |
| Sep 8, 3:15 PM PDT | Areal Flood Advisory | HNX | Tulare | 3 hr |
| Sep 8, 3:17 PM PDT | Areal Flood Advisory | SGX | Riverside, San Bernardino | 74 min |
| Sep 8, 4:43 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 112 min |
| Sep 8, 7:36 PM PDT | Red Flag Warning | STO | 24 hr | |
| Sep 9, 2:20 AM PDT | Small Craft Advisory | MTR | 67 hr | |
| Sep 9, 3:19 AM PDT | Gale Watch | EKA | 11 hr | |
| Sep 9, 3:19 AM PDT | Small Craft Advisory | EKA | 3 days | |
| Sep 9, 3:32 AM PDT | Flash Flood Watch | LOX | 17 hr | |
| Sep 9, 2:18 PM PDT | Freeze Watch | MFR | Modoc, Siskiyou | 22 hr |
| Sep 9, 2:26 PM PDT | Flash Flood Watch | VEF | Inyo, San Bernardino | 55 hr |
| Sep 9, 2:33 PM PDT | Gale Warning | EKA | 66 hr | |
| Sep 9, 2:44 PM PDT | Flash Flood Warning | SGX | Orange, Riverside | 3 hr |
| Sep 9, 2:51 PM PDT | Flash Flood Watch | HNX | 28 hr | |
| Sep 9, 4:41 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 34 min |
| Sep 9, 4:41 PM PDT | Areal Flood Advisory | REV | Mono | 2 hr |
| Sep 9, 4:46 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 39 min |
| Sep 9, 5:15 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 60 min |
| Sep 9, 5:22 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 9, 5:23 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 45 min |
| Sep 9, 5:30 PM PDT | Flash Flood Warning | SGX | San Diego | 104 min |
| Sep 9, 5:59 PM PDT | Dust Storm Warning | PSR | 2 hr | |
| Sep 9, 6:16 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 59 min |
| Sep 9, 6:40 PM PDT | Areal Flood Advisory | LOX | 93 min | |
| Sep 9, 6:54 PM PDT | Severe Thunderstorm Warning | PSR | San Bernardino | 38 min |
| Sep 9, 7:01 PM PDT | Flash Flood Watch | SGX | Riverside, San Bernardino, San Diego | 23 hr |
| Sep 9, 7:15 PM PDT | Special Weather Statement | PSR | Imperial | 60 min |
| Sep 9, 7:26 PM PDT | Blowing Dust Advisory | SGX | Riverside, San Diego | 3 hr |
| Sep 9, 7:29 PM PDT | Areal Flood Advisory | PSR | Imperial | 2 hr |
| Sep 9, 8:10 PM PDT | Flash Flood Warning | PSR | Imperial | 3 hr |
| Sep 9, 8:16 PM PDT | Special Weather Statement | PSR | Imperial | 44 min |
| Sep 10, 3:23 AM PDT | Flash Flood Watch | LOX | 16 hr | |
| Sep 10, 11:49 AM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 20 hr |
| Sep 10, 12:21 PM PDT | Areal Flood Advisory | SGX | Riverside, San Bernardino | 119 min |
| Sep 10, 12:47 PM PDT | Mesoscale Discussion | SPC | Riverside, San Bernardino, San Diego | 118 min |
| Sep 10, 1:17 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 49 min |
| Sep 10, 1:29 PM PDT | Flash Flood Warning | SGX | San Bernardino | 3 hr |
| Sep 10, 2:00 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 3 hr |
| Sep 10, 2:11 PM PDT | Special Weather Statement | PSR | Riverside | 49 min |
| Sep 10, 2:15 PM PDT | Areal Flood Advisory | LOX | 3 hr | |
| Sep 10, 2:29 PM PDT | Fire Weather Watch | MFR | Siskiyou | 24 hr |
| Sep 10, 2:33 PM PDT | Severe Thunderstorm Warning | SGX | Orange, Riverside | 50 min |
| Sep 10, 2:34 PM PDT | Special Weather Statement | HNX | Kern | 56 min |
| Sep 10, 2:38 PM PDT | Flash Flood Warning | LOX | Ventura | 3 hr |
| Sep 10, 2:42 PM PDT | Areal Flood Advisory | PSR | Riverside | 2 hr |
| Sep 10, 2:42 PM PDT | Flash Flood Warning | SGX | San Diego | 93 min |
| Sep 10, 2:44 PM PDT | Small Craft Advisory for Hazardous Seas | MTR | 12 hr | |
| Sep 10, 2:59 PM PDT | Flash Flood Warning | SGX | San Bernardino | 2 hr |
| Sep 10, 3:07 PM PDT | Special Weather Statement | SGX | Orange | 53 min |
| Sep 10, 3:40 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 10, 3:49 PM PDT | Special Weather Statement | HNX | 41 min | |
| Sep 10, 3:49 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 26 min |
| Sep 10, 4:11 PM PDT | Severe Thunderstorm Warning | LOX | Los Angeles | 64 min |
| Sep 10, 4:21 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 78 min |
| Sep 10, 4:25 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 35 min |
| Sep 10, 4:34 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 116 min |
| Sep 10, 5:03 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 27 min |
| Sep 10, 6:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 10, 7:16 PM PDT | Areal Flood Advisory | SGX | San Diego | 97 min |
| Sep 11, 2:53 AM PDT | Areal Flood Advisory | SGX | Riverside | 3 hr |
| Sep 11, 3:08 AM PDT | Hazardous Seas Warning | EKA | 24 hr | |
| Sep 11, 3:42 AM PDT | Flash Flood Watch | PSR | 11 hr | |
| Sep 11, 5:42 AM PDT | Areal Flood Advisory | SGX | Riverside | 8 hr |
| Sep 11, 10:16 AM PDT | Areal Flood Advisory | PSR | Riverside | 119 min |
| Sep 11, 1:20 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Sep 11, 2:03 PM PDT | Flash Flood Warning | VEF | Inyo | 117 min |
| Sep 11, 2:07 PM PDT | Areal Flood Advisory | PSR | Imperial, Riverside | 3 hr |
| Sep 11, 2:52 PM PDT | Red Flag Warning | MFR | Siskiyou | 47 hr |
| Sep 11, 3:52 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 63 min |
| Sep 11, 3:57 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 11, 4:02 PM PDT | Flash Flood Warning | VEF | Inyo | 57 min |
| Sep 11, 5:25 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 35 min |
| Sep 11, 5:43 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 11, 5:54 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 19 min |
| Sep 11, 6:02 PM PDT | Special Weather Statement | PSR | Riverside | 28 min |
| Sep 11, 6:41 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Sep 11, 7:54 PM PDT | Flash Flood Warning | VEF | Inyo | 71 min |
| Sep 11, 8:36 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 39 min |
| Sep 11, 9:15 PM PDT | Small Craft Advisory | MTR | 24 hr | |
| Sep 11, 9:59 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 76 min |
| Sep 11, 11:02 PM PDT | Flash Flood Warning | VEF | San Bernardino | 118 min |
| Sep 11, 11:14 PM PDT | Areal Flood Advisory | SGX | Riverside | 76 min |
| Sep 12, 8:45 AM PDT | Small Craft Advisory | LOX | 72 hr | |
| Sep 12, 9:14 PM PDT | Small Craft Advisory | MTR | 24 hr | |
| Sep 13, 9:17 PM PDT | Small Craft Advisory | MTR | 29 hr | |
| Sep 14, 9:10 AM PDT | Fire Weather Watch | MFR | Modoc, Siskiyou | 6 hr |
| Sep 14, 9:10 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 12 hr |
| Sep 14, 10:44 AM PDT | Fire Weather Watch | STO | 4 hr | |
| Sep 14, 2:27 PM PDT | Red Flag Warning | STO | 30 hr | |
| Sep 14, 2:40 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Sep 15, 2:39 AM PDT | Small Craft Advisory | EKA | 42 hr | |
| Sep 15, 6:56 AM PDT | Red Flag Warning | REV | Lassen, Modoc | 13 hr |
| Sep 15, 8:37 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Sep 16, 8:49 AM PDT | Small Craft Advisory | LOX | 3 days | |
| Sep 16, 9:00 PM PDT | Small Craft Advisory | MTR | 24 hr | |
| Sep 17, 3:00 PM PDT | Small Craft Advisory | MTR | 9 days | |
| Sep 18, 9:22 PM PDT | Gale Watch | LOX | 5 hr | |
| Sep 19, 2:26 AM PDT | Gale Warning | LOX | 54 hr | |
| Sep 19, 2:26 AM PDT | Small Craft Advisory | LOX | 25 hr | |
| Sep 19, 7:49 PM PDT | Wind Advisory | LOX | 5 hr | |
| Sep 20, 2:01 PM PDT | Small Craft Advisory | EKA | 7 days | |
| Sep 20, 2:30 PM PDT | Small Craft Advisory | LOX | 37 hr | |
| Sep 20, 2:42 PM PDT | Fire Weather Watch | MFR | Modoc | 22 hr |
| Sep 21, 8:53 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 21, 1:45 PM PDT | Hazardous Seas Warning | EKA | 26 hr | |
| Sep 21, 2:04 PM PDT | Beach Hazards Statement | MTR | Monterey, Santa Cruz | 4 days |
| Sep 22, 7:25 AM PDT | Dense Fog Advisory | SGX | San Diego | 2 hr |
| Sep 22, 3:20 PM PDT | Gale Watch | EKA | 36 hr | |
| Sep 22, 3:20 PM PDT | Small Craft Advisory | EKA | 12 hr | |
| Sep 23, 2:11 AM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 21 hr |
| Sep 23, 3:25 AM PDT | Dense Fog Advisory | SGX | San Diego | 5 hr |
| Sep 23, 7:09 AM PDT | Dense Fog Advisory | MTR | Monterey, San Benito | 3 hr |
| Sep 23, 2:04 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 18 hr |
| Sep 23, 2:47 PM PDT | Small Craft Advisory | MTR | 6 hr | |
| Sep 23, 3:17 PM PDT | Small Craft Advisory | EKA | 3 days | |
| Sep 24, 1:38 AM PDT | Dense Fog Advisory | LOX | 7 hr | |
| Sep 24, 3:42 AM PDT | Hazardous Seas Warning | EKA | 65 hr | |
| Sep 24, 3:26 PM PDT | Wind Advisory | LOX | 6 hr | |
| Sep 24, 9:29 PM PDT | Small Craft Advisory for Rough Bar | MTR | 17 hr | |
| Sep 25, 2:22 AM PDT | Small Craft Advisory | MTR | 31 hr | |
| Sep 25, 3:29 PM PDT | Beach Hazards Statement | MTR | Monterey, Santa Cruz | 6 hr |
| Sep 27, 2:47 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 27, 3:58 PM PDT | Special Weather Statement | PSR | Riverside | 32 min |
| Sep 28, 8:36 AM PDT | Small Craft Advisory | MTR | 12 hr | |
| Sep 28, 10:57 AM PDT | Excessive Heat Watch | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 40 hr |
| Sep 28, 1:14 PM PDT | Fire Weather Watch | LOX | Los Angeles | 3 days |
| Sep 28, 2:05 PM PDT | Small Craft Advisory | EKA | 5 days | |
| Sep 28, 2:05 PM PDT | Hazardous Seas Watch | EKA | 13 hr | |
| Sep 28, 2:09 PM PDT | Fire Weather Watch | HNX | 24 hr | |
| Sep 28, 2:23 PM PDT | Beach Hazards Statement | MTR | Monterey, Santa Cruz | 63 hr |
| Sep 28, 5:35 PM PDT | Excessive Heat Watch | SGX | Riverside, San Bernardino, San Diego | 11 hr |
| Sep 29, 2:45 AM PDT | Small Craft Advisory | LOX | 30 hr | |
| Sep 29, 3:01 AM PDT | Hazardous Seas Warning | EKA | 66 hr | |
| Sep 29, 9:05 AM PDT | Small Craft Advisory | MTR | 12 hr | |
| Sep 29, 1:45 PM PDT | Red Flag Warning | HNX | 3 days | |
| Sep 29, 2:50 PM PDT | Gale Watch | EKA | 24 hr | |
| Sep 29, 3:51 PM PDT | Red Flag Warning | LOX | Los Angeles | 3 days |
| Sep 30, 3:12 AM PDT | Hazardous Seas Watch | EKA | 48 hr | |
| Sep 30, 2:29 PM PDT | Gale Warning | EKA | 3 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County32
- Riverside County31
- Imperial County16
- Modoc County15
- San Diego County13
- Siskiyou County8
- Monterey County7
- Los Angeles County7
- Inyo County6
- Santa Cruz County5
- Lassen County4
- Plumas County3
- Sierra County3
- Orange County3
- Kern County3
- San Mateo County2
- Alameda County2
- Contra Costa County2
- Marin County2
- Napa County2
- Sonoma County2
- Alpine County2
- El Dorado County2
- Nevada County2
- Placer County2
- San Benito County2
- Tulare County1
- Mono County1
- Ventura County1
- Santa Clara County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.