Alert archive / California / 2015
Weather alerts in California, September 2015
154 weather alerts in September 2015, 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 2015. Tap one for its archive.
- Alerts
- 154
- Warnings
- 37
- Watches
- 11
- Advisories
- 85
- Busiest day
- September 9, 201529 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, 8:49 AM PDT | Small Craft Advisory | MTR | 11 hr | |
| Sep 1, 9:55 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Nevada, Placer, Sierra | 35 hr |
| Sep 1, 3:07 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 30 hr |
| Sep 2, 3:07 AM PDT | Small Craft Advisory | MTR | 6 days | |
| Sep 2, 3:07 AM PDT | Small Craft Advisory | MTR | 5 days | |
| Sep 2, 3:33 AM PDT | Small Craft Advisory | EKA | 9 days | |
| Sep 2, 2:45 PM PDT | Small Craft Advisory | MTR | 3 days | |
| Sep 2, 7:50 PM PDT | Beach Hazards Statement | LOX | Los Angeles | 6 days |
| Sep 3, 3:02 AM PDT | Small Craft Advisory | LOX | 72 hr | |
| Sep 3, 12:47 PM PDT | Red Flag Warning | REV | 32 hr | |
| Sep 3, 12:54 PM PDT | Beach Hazards Statement | SGX | Orange, San Diego | 37 hr |
| Sep 3, 1:22 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 32 hr |
| Sep 3, 2:33 PM PDT | Small Craft Advisory | MTR | 56 hr | |
| Sep 3, 3:54 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 15 hr |
| Sep 4, 3:22 AM PDT | Frost Advisory | EKA | 30 hr | |
| Sep 4, 12:42 PM PDT | Freeze Watch | MFR | Modoc, Siskiyou | 27 hr |
| Sep 4, 2:36 PM PDT | Beach Hazards Statement | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 3 days |
| Sep 4, 5:04 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 15 hr |
| Sep 5, 1:35 AM PDT | High Surf Advisory | SGX | Orange, San Diego | 71 hr |
| Sep 5, 2:28 PM PDT | Hazardous Seas Warning | EKA | 3 days | |
| Sep 5, 3:48 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 16 hr |
| Sep 5, 4:57 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 15 hr |
| Sep 6, 3:37 AM PDT | Gale Watch | EKA | 11 hr | |
| Sep 6, 2:34 PM PDT | Gale Warning | EKA | 60 hr | |
| Sep 6, 3:01 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 18 hr |
| Sep 6, 3:01 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 18 hr |
| Sep 7, 11:05 AM PDT | Heat Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 4 days |
| Sep 7, 8:05 PM PDT | Excessive Heat Warning | LOX | Los Angeles | 72 hr |
| Sep 7, 9:22 PM PDT | Flash Flood Watch | SGX | Riverside, San Bernardino, San Diego | 71 hr |
| Sep 8, 12:39 AM PDT | Beach Hazards Statement | SGX | Orange | 19 hr |
| Sep 8, 2:27 AM PDT | Heat Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 17 hr |
| Sep 8, 2:27 AM PDT | Heat Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 41 hr |
| Sep 8, 3:40 AM PDT | Small Craft Advisory | EKA | 10 hr | |
| Sep 8, 12:47 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Sep 8, 1:31 PM PDT | Flash Flood Warning | SGX | San Diego | 3 hr |
| Sep 8, 1:50 PM PDT | Special Weather Statement | SGX | San Diego | 55 min |
| Sep 8, 2:29 PM PDT | Flash Flood Warning | SGX | San Bernardino | 4 hr |
| Sep 8, 2:49 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 56 min |
| Sep 8, 2:59 PM PDT | Flash Flood Warning | SGX | San Diego | 3 hr |
| Sep 8, 3:37 PM PDT | Special Weather Statement | PSR | Riverside | 38 min |
| Sep 8, 3:44 PM PDT | Blowing Dust Advisory | PSR | 76 min | |
| Sep 8, 4:19 PM PDT | Flash Flood Warning | SGX | Riverside | 3 hr |
| Sep 8, 4:35 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 55 min |
| Sep 8, 4:37 PM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 4 hr |
| Sep 8, 5:26 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Sep 8, 6:25 PM PDT | Severe Thunderstorm Warning | SGX | San Bernardino | 65 min |
| Sep 8, 6:52 PM PDT | Flash Flood Warning | SGX | San Bernardino | 5 hr |
| Sep 9, 2:33 AM PDT | Heat Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 40 hr |
| Sep 9, 2:59 AM PDT | Hazardous Seas Warning | EKA | 30 hr | |
| Sep 9, 3:00 AM PDT | Beach Hazards Statement | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 18 hr |
| Sep 9, 3:10 AM PDT | Flash Flood Watch | LOX | 18 hr | |
| Sep 9, 11:41 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Sep 9, 12:07 PM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 5 hr |
| Sep 9, 12:21 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 9, 1:21 PM PDT | Special Weather Statement | PSR | Riverside | 54 min |
| Sep 9, 1:21 PM PDT | Special Weather Statement | SGX | 54 min | |
| Sep 9, 1:27 PM PDT | Beach Hazards Statement | SGX | Orange | 7 hr |
| Sep 9, 1:27 PM PDT | Flash Flood Warning | SGX | San Bernardino | 4 hr |
| Sep 9, 1:30 PM PDT | Severe Thunderstorm Warning | SGX | Riverside | 60 min |
| Sep 9, 1:33 PM PDT | Flash Flood Warning | SGX | Riverside, San Bernardino | 4 hr |
| Sep 9, 1:35 PM PDT | Areal Flood Advisory | PSR | Riverside, San Bernardino | 3 hr |
| Sep 9, 2:02 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 9, 2:08 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 9, 2:10 PM PDT | Severe Thunderstorm Warning | SGX | Riverside, San Bernardino | 65 min |
| Sep 9, 2:12 PM PDT | Special Weather Statement | PSR | Riverside | 63 min |
| Sep 9, 2:34 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 9, 2:42 PM PDT | Flash Flood Warning | HNX | Kern | 6 hr |
| Sep 9, 2:54 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 9, 2:55 PM PDT | Flash Flood Warning | HNX | Kern | 3 hr |
| Sep 9, 2:56 PM PDT | Special Weather Statement | SGX | Orange | 64 min |
| Sep 9, 3:15 PM PDT | Special Weather Statement | PSR | Riverside | 45 min |
| Sep 9, 4:25 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Sep 9, 4:57 PM PDT | Special Weather Statement | HNX | 48 min | |
| Sep 9, 5:08 PM PDT | Special Weather Statement | HNX | 22 min | |
| Sep 9, 5:28 PM PDT | Special Weather Statement | HNX | 47 min | |
| Sep 9, 5:44 PM PDT | Flash Flood Warning | LOX | Los Angeles | 3 hr |
| Sep 9, 8:18 PM PDT | High Surf Advisory | LOX | Los Angeles | 29 hr |
| Sep 9, 8:50 PM PDT | Beach Hazards Statement | SGX | San Diego | 29 hr |
| Sep 9, 8:50 PM PDT | High Surf Advisory | SGX | Orange | 29 hr |
| Sep 9, 10:24 PM PDT | Beach Hazards Statement | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 23 hr |
| Sep 10, 2:43 AM PDT | Small Craft Advisory | MTR | 17 hr | |
| Sep 10, 3:14 AM PDT | Flash Flood Watch | LOX | 16 hr | |
| Sep 10, 1:37 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Sep 11, 1:43 AM PDT | Beach Hazards Statement | LOX | Los Angeles | 40 hr |
| Sep 11, 2:48 AM PDT | Small Craft Advisory | MTR | 42 hr | |
| Sep 11, 9:55 AM PDT | Beach Hazards Statement | SGX | Orange | 10 hr |
| Sep 11, 2:30 PM PDT | Small Craft Advisory | EKA | 4 days | |
| Sep 11, 4:34 PM PDT | Special Weather Statement | HNX | 56 min | |
| Sep 12, 3:04 AM PDT | Gale Watch | EKA | 11 hr | |
| Sep 12, 2:30 PM PDT | Gale Warning | EKA | 49 hr | |
| Sep 13, 12:08 AM PDT | Small Craft Advisory | MTR | 3 hr | |
| Sep 13, 2:52 AM PDT | Small Craft Advisory | MTR | 3 days | |
| Sep 13, 2:34 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 3 days |
| Sep 14, 3:01 AM PDT | Wind Advisory | VEF | San Bernardino | 48 hr |
| Sep 14, 3:03 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Sep 14, 3:06 AM PDT | Hazardous Seas Warning | EKA | 12 hr | |
| Sep 14, 4:37 AM PDT | Wind Advisory | LOX | 16 hr | |
| Sep 14, 12:48 PM PDT | Wind Advisory | SGX | Riverside, San Bernardino, San Diego | 14 hr |
| Sep 14, 2:04 PM PDT | Blowing Dust Advisory | PSR | 116 min | |
| Sep 14, 2:34 PM PDT | Small Craft Advisory | EKA | 12 hr | |
| Sep 15, 2:22 AM PDT | Small Craft Advisory | EKA | 43 hr | |
| Sep 15, 3:11 AM PDT | Areal Flood Advisory | LOX | Los Angeles, Ventura | 109 min |
| Sep 15, 4:53 AM PDT | Areal Flood Advisory | LOX | Los Angeles, Ventura | 112 min |
| Sep 15, 6:10 AM PDT | Areal Flood Advisory | SGX | Orange | 4 hr |
| Sep 15, 6:24 AM PDT | Areal Flood Advisory | LOX | Los Angeles | 5 hr |
| Sep 15, 9:01 AM PDT | Areal Flood Advisory | SGX | Riverside, San Bernardino | 8 hr |
| Sep 15, 10:31 AM PDT | Areal Flood Advisory | SGX | Riverside, San Diego | 3 hr |
| Sep 15, 2:24 PM PDT | Small Craft Advisory | LOX | 4 days | |
| Sep 15, 2:54 PM PDT | Small Craft Advisory | MTR | 26 hr | |
| Sep 16, 6:43 PM PDT | Tsunami Advisory | AAQ | Los Angeles, Orange, Santa Barbara | 18 hr |
| Sep 17, 2:11 AM PDT | Small Craft Advisory | LOX | 55 hr | |
| Sep 17, 2:30 AM PDT | Small Craft Advisory | MTR | 24 hr | |
| Sep 17, 2:56 AM PDT | Freeze Watch | MFR | Modoc, Siskiyou | 11 hr |
| Sep 17, 3:09 AM PDT | Small Craft Advisory | EKA | 6 days | |
| Sep 17, 1:52 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 18 hr |
| Sep 17, 1:52 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 18 hr |
| Sep 17, 9:04 PM PDT | Small Craft Advisory | MTR | 6 days | |
| Sep 18, 2:04 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 18 hr |
| Sep 18, 8:23 PM PDT | Small Craft Advisory for Hazardous Seas | LOX | 6 hr | |
| Sep 20, 2:22 AM PDT | Small Craft Advisory | MTR | 72 hr | |
| Sep 20, 2:43 AM PDT | Heat Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 17 hr |
| Sep 20, 12:45 PM PDT | Flash Flood Watch | SGX | Riverside, San Bernardino, San Diego | 52 hr |
| Sep 20, 12:54 PM PDT | Flash Flood Watch | PSR | 38 hr | |
| Sep 20, 2:19 PM PDT | Flash Flood Watch | VEF | San Bernardino | 21 hr |
| Sep 20, 2:20 PM PDT | Small Craft Advisory | MTR | 37 hr | |
| Sep 21, 3:13 AM PDT | Heat Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 17 hr |
| Sep 21, 9:10 AM PDT | Small Craft Advisory | LOX | 12 hr | |
| Sep 21, 9:26 AM PDT | Gale Warning | EKA | 24 hr | |
| Sep 21, 4:36 PM PDT | Blowing Dust Advisory | PSR | 85 min | |
| Sep 21, 4:46 PM PDT | Blowing Dust Advisory | VEF | San Bernardino | 2 hr |
| Sep 22, 2:55 PM PDT | Blowing Dust Advisory | PSR | 65 min | |
| Sep 22, 8:22 PM PDT | Small Craft Advisory | LOX | 31 hr | |
| Sep 23, 1:56 AM PDT | Small Craft Advisory | MTR | 25 hr | |
| Sep 24, 3:16 AM PDT | Small Craft Advisory | MTR | 24 hr | |
| Sep 24, 6:57 AM PDT | Small Craft Advisory for Hazardous Seas | LOX | 5 hr | |
| Sep 24, 2:25 PM PDT | Small Craft Advisory | LOX | 12 hr | |
| Sep 25, 2:18 AM PDT | Small Craft Advisory | LOX | 44 hr | |
| Sep 25, 2:21 AM PDT | Small Craft Advisory | EKA | 43 hr | |
| Sep 25, 3:04 AM PDT | Small Craft Advisory | MTR | 53 hr | |
| Sep 25, 2:24 PM PDT | Small Craft Advisory | MTR | 55 hr | |
| Sep 26, 2:42 AM PDT | Gale Warning | EKA | 42 hr | |
| Sep 26, 2:42 AM PDT | Hazardous Seas Watch | EKA | 12 hr | |
| Sep 26, 9:55 PM PDT | Small Craft Advisory for Winds | LOX | 5 hr | |
| Sep 27, 2:33 AM PDT | Small Craft Advisory | LOX | 6 hr | |
| Sep 27, 2:46 AM PDT | Small Craft Advisory | EKA | 39 hr | |
| Sep 27, 5:34 PM PDT | Small Craft Advisory | LOX | 9 hr | |
| Sep 28, 12:06 AM PDT | Gale Warning | EKA | 3 hr | |
| Sep 28, 3:13 AM PDT | Small Craft Advisory | EKA | 9 hr | |
| Sep 29, 3:14 AM PDT | Small Craft Advisory | LOX | 5 days | |
| Sep 29, 6:47 PM PDT | Wind Advisory | LOX | 8 hr | |
| Sep 29, 8:56 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 12 hr |
| Sep 30, 3:08 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Sep 30, 9:02 AM PDT | Wind Advisory | LOX | 21 hr | |
| Sep 30, 1:07 PM PDT | Small Craft Advisory | SGX | 38 hr |
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 County25
- Riverside County18
- San Diego County12
- Modoc County12
- Siskiyou County12
- Los Angeles County11
- Orange County10
- Marin County8
- Monterey County8
- San Mateo County8
- Santa Cruz County8
- Sonoma County8
- City and County of San Francisco7
- Alameda County5
- Contra Costa County5
- Napa County5
- San Benito County5
- Santa Clara County5
- El Dorado County4
- Nevada County4
- Placer County4
- Lassen County3
- Sierra County3
- Alpine County3
- Plumas County2
- Kern County2
- Ventura County2
- Mono County1
- Santa Barbara County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.