Alert archive / California / 2021
Weather alerts in California, August 2021
274 weather alerts in August 2021, 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 August 2021. Tap one for its archive.
- Alerts
- 274
- Warnings
- 99
- Watches
- 42
- Advisories
- 114
- Busiest day
- August 11, 202124 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 |
|---|---|---|---|---|
| Jul 31, 5:50 PM PDT | Areal Flood Advisory | SGX | Riverside, San Diego | 2 hr |
| Jul 31, 6:34 PM PDT | Areal Flood Advisory | EKA | Trinity | 79 min |
| Aug 1, 3:06 AM PDT | Small Craft Advisory | LOX | 5 days | |
| Aug 1, 12:50 PM PDT | Excessive Heat Watch | SGX | Riverside, San Bernardino, San Diego | 23 hr |
| Aug 1, 12:50 PM PDT | Heat Advisory | SGX | Riverside, San Bernardino, San Diego | 4 days |
| Aug 1, 1:31 PM PDT | Excessive Heat Watch | PSR | Imperial, Riverside, San Bernardino | 24 hr |
| Aug 1, 2:01 PM PDT | Areal Flood Advisory | REV | Lassen, Modoc | 119 min |
| Aug 1, 2:02 PM PDT | Small Craft Advisory | MTR | 31 hr | |
| Aug 1, 4:02 PM PDT | Flash Flood Warning | EKA | Del Norte | 58 min |
| Aug 2, 1:52 AM PDT | Excessive Heat Watch | VEF | San Bernardino | 11 hr |
| Aug 2, 2:28 AM PDT | Excessive Heat Watch | LOX | 9 hr | |
| Aug 2, 2:28 AM PDT | Heat Advisory | LOX | Los Angeles, Santa Barbara | 66 hr |
| Aug 2, 2:28 AM PDT | Wind Advisory | LOX | 25 hr | |
| Aug 2, 11:38 AM PDT | Excessive Heat Warning | SGX | Riverside, San Bernardino, San Diego | 3 days |
| Aug 2, 11:55 AM PDT | Excessive Heat Warning | LOX | 56 hr | |
| Aug 2, 12:10 PM PDT | Excessive Heat Warning | HNX | 56 hr | |
| Aug 2, 12:48 PM PDT | Excessive Heat Warning | VEF | Inyo, San Bernardino | 3 days |
| Aug 2, 1:45 PM PDT | Excessive Heat Warning | PSR | Imperial, Riverside, San Bernardino | 3 days |
| Aug 2, 2:01 PM PDT | Small Craft Advisory | MTR | 5 days | |
| Aug 2, 2:41 PM PDT | Small Craft Advisory | EKA | 62 hr | |
| Aug 2, 3:19 PM PDT | Fire Weather Watch | MFR | Modoc, Siskiyou | 22 hr |
| Aug 2, 3:19 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 29 hr |
| Aug 3, 2:07 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Aug 3, 2:48 AM PDT | Fire Weather Watch | REV | El Dorado, Lassen, Madera, Modoc, Mono, Nevada and 3 more | 25 hr |
| Aug 3, 2:51 AM PDT | Small Craft Advisory | EKA | 33 hr | |
| Aug 3, 3:08 AM PDT | Wind Advisory | LOX | 24 hr | |
| Aug 3, 9:02 AM PDT | Gale Watch | LOX | 17 hr | |
| Aug 3, 10:08 AM PDT | Red Flag Warning | STO | 59 hr | |
| Aug 3, 1:27 PM PDT | Fire Weather Watch | MFR | Modoc | 25 hr |
| Aug 3, 1:27 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 33 hr |
| Aug 3, 2:41 PM PDT | Small Craft Advisory | MTR | 30 hr | |
| Aug 3, 8:02 PM PDT | Heat Advisory | LOX | Santa Barbara | 24 hr |
| Aug 4, 2:08 AM PDT | Gale Warning | LOX | 49 hr | |
| Aug 4, 2:08 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Aug 4, 2:35 AM PDT | Small Craft Advisory | MTR | 5 days | |
| Aug 4, 3:09 AM PDT | Wind Advisory | LOX | 24 hr | |
| Aug 4, 3:30 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Madera, Modoc, Mono, Nevada and 3 more | 42 hr |
| Aug 4, 1:36 PM PDT | Gale Watch | LOX | 12 hr | |
| Aug 4, 2:01 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Aug 4, 3:22 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 30 hr |
| Aug 4, 8:03 PM PDT | Small Craft Advisory | EKA | 6 days | |
| Aug 5, 3:06 AM PDT | Wind Advisory | LOX | 24 hr | |
| Aug 5, 2:38 PM PDT | Small Craft Advisory | MTR | 30 hr | |
| Aug 5, 5:12 PM PDT | Special Weather Statement | STO | Shasta | 33 min |
| Aug 6, 2:01 AM PDT | Small Craft Advisory | MTR | 43 hr | |
| Aug 6, 2:44 AM PDT | Small Craft Advisory | LOX | 26 hr | |
| Aug 6, 2:52 AM PDT | Small Craft Advisory | EKA | 57 hr | |
| Aug 7, 2:46 AM PDT | Small Craft Advisory | MTR | 42 hr | |
| Aug 7, 3:29 AM PDT | Gale Watch | EKA | 24 hr | |
| Aug 7, 8:57 AM PDT | Small Craft Advisory | MTR | 24 hr | |
| Aug 7, 1:23 PM PDT | Excessive Heat Watch | MFR | Siskiyou | 46 hr |
| Aug 8, 2:34 AM PDT | Small Craft Advisory | MTR | 42 hr | |
| Aug 8, 3:12 AM PDT | Gale Warning | EKA | 35 hr | |
| Aug 8, 3:41 AM PDT | Hazardous Seas Warning | EKA | 56 hr | |
| Aug 8, 8:57 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Aug 8, 7:43 PM PDT | Excessive Heat Watch | EKA | Humboldt, Lake, Mendocino, Trinity | 34 hr |
| Aug 9, 11:28 AM PDT | Excessive Heat Warning | MFR | Siskiyou | 5 days |
| Aug 9, 11:28 AM PDT | Heat Advisory | MFR | Modoc, Siskiyou | 4 days |
| Aug 9, 1:34 PM PDT | Flash Flood Watch | SGX | Riverside, San Bernardino, San Diego | 54 hr |
| Aug 9, 1:44 PM PDT | Areal Flood Advisory | PSR | Riverside, San Bernardino | 3 hr |
| Aug 9, 1:49 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Aug 9, 2:21 PM PDT | Areal Flood Advisory | SGX | Riverside | 3 hr |
| Aug 9, 2:37 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 9, 2:38 PM PDT | Flash Flood Warning | PSR | Riverside, San Bernardino | 3 hr |
| Aug 9, 2:41 PM PDT | Small Craft Advisory | MTR | 30 hr | |
| Aug 9, 3:26 PM PDT | Areal Flood Advisory | PSR | Riverside | 3 hr |
| Aug 9, 5:06 PM PDT | Areal Flood Advisory | PSR | Riverside | 3 hr |
| Aug 9, 5:26 PM PDT | Areal Flood Advisory | SGX | San Diego | 2 hr |
| Aug 9, 5:26 PM PDT | Special Weather Statement | SGX | San Diego | 64 min |
| Aug 9, 6:09 PM PDT | Areal Flood Advisory | PSR | Riverside, San Bernardino | 115 min |
| Aug 10, 2:50 AM PDT | Small Craft Advisory | EKA | 24 hr | |
| Aug 10, 5:16 AM PDT | Heat Advisory | EKA | Humboldt, Lake, Mendocino, Trinity | 57 hr |
| Aug 10, 1:53 PM PDT | Areal Flood Advisory | SGX | Riverside, San Bernardino | 101 min |
| Aug 10, 2:39 PM PDT | Small Craft Advisory | MTR | 30 hr | |
| Aug 10, 3:11 PM PDT | Areal Flood Advisory | PSR | Riverside, San Bernardino | 3 hr |
| Aug 10, 5:13 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 92 min |
| Aug 10, 5:49 PM PDT | Dust Storm Warning | VEF | San Bernardino | 56 min |
| Aug 10, 6:30 PM PDT | Severe Thunderstorm Warning | PSR | Riverside | 45 min |
| Aug 10, 6:43 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 47 min |
| Aug 10, 6:55 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 10, 7:15 PM PDT | Dust Storm Warning | PSR | Imperial, Riverside, San Bernardino | 60 min |
| Aug 10, 7:26 PM PDT | Severe Thunderstorm Warning | PSR | Imperial, Riverside | 49 min |
| Aug 10, 7:33 PM PDT | Flash Flood Warning | PSR | Imperial, Riverside | 4 hr |
| Aug 10, 8:18 PM PDT | Severe Thunderstorm Warning | PSR | Imperial, Riverside | 57 min |
| Aug 10, 8:38 PM PDT | Dust Storm Warning | PSR | Imperial, Riverside | 52 min |
| Aug 10, 9:08 PM PDT | Flash Flood Warning | PSR | Imperial, Riverside | 6 hr |
| Aug 10, 9:33 PM PDT | Dust Storm Warning | SGX | Riverside, San Diego | 57 min |
| Aug 10, 9:42 PM PDT | Dust Storm Warning | PSR | Imperial | 93 min |
| Aug 10, 9:54 PM PDT | Flash Flood Warning | PSR | Riverside | 86 min |
| Aug 10, 10:26 PM PDT | Areal Flood Advisory | SGX | Riverside, San Diego | 3 hr |
| Aug 10, 10:31 PM PDT | Dust Storm Advisory | SGX | San Diego | 59 min |
| Aug 10, 11:16 PM PDT | Special Weather Statement | PSR | Imperial | 74 min |
| Aug 10, 11:22 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 10, 11:27 PM PDT | Flash Flood Warning | SGX | Riverside, San Diego | 3 hr |
| Aug 11, 2:29 AM PDT | Special Marine Warning | LOX | 31 min | |
| Aug 11, 2:52 AM PDT | Special Marine Warning | LOX | 53 min | |
| Aug 11, 3:42 AM PDT | Special Marine Warning | LOX | 48 min | |
| Aug 11, 12:26 PM PDT | Fire Weather Watch | MFR | Modoc, Siskiyou | 25 hr |
| Aug 11, 2:01 PM PDT | Dust Storm Advisory | PSR | Imperial | 59 min |
| Aug 12, 2:52 AM PDT | Small Craft Advisory | MTR | 12 days | |
| Aug 12, 2:52 AM PDT | Small Craft Advisory | MTR | 48 hr | |
| Aug 12, 9:57 AM PDT | Excessive Heat Watch | LOX | Santa Barbara | 25 hr |
| Aug 12, 10:32 AM PDT | Excessive Heat Watch | SGX | San Bernardino | 27 hr |
| Aug 12, 12:34 PM PDT | Excessive Heat Watch | HNX | 24 hr | |
| Aug 12, 1:44 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 29 hr |
| Aug 12, 8:47 PM PDT | Small Craft Advisory | MTR | 5 days | |
| Aug 13, 2:37 AM PDT | Excessive Heat Watch | VEF | Inyo, San Bernardino | 12 hr |
| Aug 13, 3:02 AM PDT | Small Craft Advisory | MTR | 42 hr | |
| Aug 13, 10:59 AM PDT | Excessive Heat Warning | LOX | Santa Barbara | 3 days |
| Aug 13, 10:59 AM PDT | Heat Advisory | LOX | Los Angeles | 3 days |
| Aug 13, 12:50 PM PDT | Excessive Heat Watch | HNX | 20 hr | |
| Aug 13, 12:50 PM PDT | Excessive Heat Warning | HNX | 3 days | |
| Aug 13, 12:50 PM PDT | Heat Advisory | HNX | 47 hr | |
| Aug 13, 1:26 PM PDT | Heat Advisory | EKA | Lake, Mendocino | 55 hr |
| Aug 13, 1:46 PM PDT | Heat Advisory | STO | 56 hr | |
| Aug 13, 1:47 PM PDT | Excessive Heat Warning | SGX | San Bernardino | 3 days |
| Aug 13, 2:18 PM PDT | Excessive Heat Warning | VEF | Inyo, San Bernardino | 3 days |
| Aug 13, 2:23 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 52 min |
| Aug 13, 2:32 PM PDT | Flash Flood Warning | REV | Alpine | 118 min |
| Aug 13, 2:36 PM PDT | Small Craft Advisory | EKA | 8 days | |
| Aug 13, 2:46 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 13, 3:01 PM PDT | Areal Flood Advisory | REV | Nevada, Placer | 3 hr |
| Aug 13, 3:03 PM PDT | Special Weather Statement | REV | Alpine, Mono, Plumas | 72 min |
| Aug 13, 3:20 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 40 min |
| Aug 13, 4:04 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 41 min |
| Aug 13, 4:55 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 50 min |
| Aug 13, 5:19 PM PDT | Flash Flood Warning | REV | Lassen, Plumas | 116 min |
| Aug 13, 7:20 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 115 min |
| Aug 13, 11:05 PM PDT | Dust Storm Warning | PSR | Imperial, Riverside | 55 min |
| Aug 14, 1:46 AM PDT | Heat Advisory | REV | Modoc | 69 hr |
| Aug 14, 2:40 AM PDT | Gale Watch | LOX | 24 hr | |
| Aug 14, 2:40 AM PDT | Small Craft Advisory | LOX | 48 hr | |
| Aug 14, 2:59 AM PDT | Small Craft Advisory | MTR | 24 hr | |
| Aug 14, 2:59 AM PDT | Small Craft Advisory | MTR | 42 hr | |
| Aug 14, 12:17 PM PDT | Heat Advisory | MFR | Siskiyou | 35 hr |
| Aug 14, 2:04 PM PDT | Wind Advisory | LOX | 13 hr | |
| Aug 14, 2:26 PM PDT | Gale Warning | LOX | 37 hr | |
| Aug 14, 4:57 PM PDT | Flash Flood Warning | HNX | Tulare | 82 min |
| Aug 15, 2:57 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Aug 15, 2:57 AM PDT | Small Craft Advisory | MTR | 48 hr | |
| Aug 15, 1:13 PM PDT | Fire Weather Watch | REV | Lassen, Modoc, Plumas, Sierra | 24 hr |
| Aug 15, 2:16 PM PDT | Gale Watch | EKA | 12 hr | |
| Aug 15, 2:26 PM PDT | Fire Weather Watch | MFR | Modoc, Siskiyou | 23 hr |
| Aug 15, 2:26 PM PDT | Red Flag Warning | MFR | Modoc | 32 hr |
| Aug 15, 7:58 PM PDT | Small Craft Advisory | LOX | 7 hr | |
| Aug 16, 2:39 AM PDT | Gale Warning | EKA | 5 days | |
| Aug 16, 2:39 AM PDT | Hazardous Seas Watch | EKA | 24 hr | |
| Aug 16, 3:00 AM PDT | Fire Weather Watch | STO | 24 hr | |
| Aug 16, 3:01 AM PDT | Small Craft Advisory | LOX | 17 hr | |
| Aug 16, 3:02 AM PDT | Gale Watch | MTR | 11 hr | |
| Aug 16, 3:08 AM PDT | Dust Storm Advisory | PSR | Imperial, Riverside | 2 hr |
| Aug 16, 4:07 AM PDT | Fire Weather Watch | EKA | 24 hr | |
| Aug 16, 9:05 AM PDT | Gale Warning | LOX | 11 hr | |
| Aug 16, 1:08 PM PDT | Red Flag Warning | REV | El Dorado, Lassen, Madera, Modoc, Mono, Nevada and 3 more | 33 hr |
| Aug 16, 1:20 PM PDT | Fire Weather Watch | MTR | 14 hr | |
| Aug 16, 1:45 PM PDT | Fire Weather Watch | MFR | Siskiyou | 16 hr |
| Aug 16, 1:45 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 32 hr |
| Aug 16, 2:05 PM PDT | Gale Warning | MTR | 43 hr | |
| Aug 16, 2:05 PM PDT | Small Craft Advisory | MTR | 31 hr | |
| Aug 16, 2:12 PM PDT | Special Weather Statement | HNX | Tulare | 33 min |
| Aug 16, 3:17 PM PDT | Red Flag Warning | EKA | 68 hr | |
| Aug 16, 3:24 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 31 hr |
| Aug 16, 7:45 PM PDT | Small Craft Advisory | LOX | 31 hr | |
| Aug 17, 3:00 AM PDT | Red Flag Warning | STO | 65 hr | |
| Aug 17, 3:12 AM PDT | Wind Advisory | LOX | 18 hr | |
| Aug 17, 3:47 AM PDT | Red Flag Warning | MTR | 32 hr | |
| Aug 17, 12:20 PM PDT | Beach Hazards Statement | SGX | Orange | 4 days |
| Aug 17, 8:58 PM PDT | Hazardous Seas Warning | EKA | 14 hr | |
| Aug 18, 3:01 AM PDT | Wind Advisory | STO | 14 hr | |
| Aug 18, 3:11 AM PDT | Wind Advisory | LOX | 18 hr | |
| Aug 18, 3:11 AM PDT | Small Craft Advisory | MTR | 49 min | |
| Aug 18, 8:40 PM PDT | Gale Warning | EKA | 30 hr | |
| Aug 18, 8:40 PM PDT | Hazardous Seas Warning | EKA | 15 hr | |
| Aug 18, 10:02 PM PDT | Beach Hazards Statement | LOX | Los Angeles | 3 days |
| Aug 19, 2:37 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Aug 19, 1:58 PM PDT | Small Craft Advisory | MTR | 31 hr | |
| Aug 20, 2:10 AM PDT | Hazardous Seas Warning | EKA | 33 hr | |
| Aug 20, 3:05 AM PDT | Small Craft Advisory | MTR | 42 hr | |
| Aug 20, 12:31 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 31 hr |
| Aug 20, 12:54 PM PDT | Red Flag Warning | STO | 31 hr | |
| Aug 20, 2:38 PM PDT | Small Craft Advisory | EKA | 9 hr | |
| Aug 21, 2:17 AM PDT | Small Craft Advisory | MTR | 43 hr | |
| Aug 21, 8:09 AM PDT | Small Craft Advisory | EKA | 13 days | |
| Aug 22, 2:30 PM PDT | Small Craft Advisory | EKA | 49 hr | |
| Aug 23, 2:04 AM PDT | Small Craft Advisory | MTR | 9 days | |
| Aug 23, 12:32 PM PDT | Excessive Heat Watch | SGX | Riverside, San Diego | 25 hr |
| Aug 23, 1:06 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Aug 23, 1:37 PM PDT | Excessive Heat Watch | PSR | Imperial, Riverside | 24 hr |
| Aug 23, 2:58 PM PDT | Hazardous Seas Warning | EKA | 21 hr | |
| Aug 24, 2:31 AM PDT | Small Craft Advisory | MTR | 4 days | |
| Aug 24, 1:20 PM PDT | Excessive Heat Warning | PSR | Imperial, Riverside, San Bernardino | 5 days |
| Aug 24, 1:27 PM PDT | Excessive Heat Watch | VEF | San Bernardino | 11 hr |
| Aug 24, 1:30 PM PDT | Excessive Heat Warning | SGX | Riverside, San Bernardino, San Diego | 5 days |
| Aug 24, 1:30 PM PDT | Heat Advisory | SGX | Riverside, San Bernardino, San Diego | 5 days |
| Aug 24, 8:50 PM PDT | Small Craft Advisory | LOX | 3 days | |
| Aug 25, 12:50 AM PDT | Excessive Heat Warning | VEF | San Bernardino | 6 days |
| Aug 25, 2:24 PM PDT | Fire Weather Watch | STO | 19 hr | |
| Aug 25, 3:04 PM PDT | Gale Watch | EKA | 12 hr | |
| Aug 25, 7:36 PM PDT | Gale Watch | MTR | 31 hr | |
| Aug 26, 1:06 AM PDT | Heat Advisory | EKA | Lake, Mendocino | 4 days |
| Aug 26, 2:07 AM PDT | Excessive Heat Warning | VEF | Inyo, San Bernardino | 5 days |
| Aug 26, 2:43 AM PDT | Gale Warning | EKA | 3 days | |
| Aug 26, 2:43 AM PDT | Small Craft Advisory | EKA | 39 hr | |
| Aug 26, 2:43 AM PDT | Hazardous Seas Watch | EKA | 24 hr | |
| Aug 26, 9:49 AM PDT | Red Flag Warning | STO | 49 hr | |
| Aug 26, 8:36 PM PDT | Wind Advisory | LOX | 5 hr | |
| Aug 27, 2:16 AM PDT | Hazardous Seas Warning | EKA | 25 hr | |
| Aug 27, 2:16 AM PDT | Hazardous Seas Warning | EKA | 16 hr | |
| Aug 27, 2:37 AM PDT | Gale Warning | MTR | 18 hr | |
| Aug 27, 3:25 AM PDT | Heat Advisory | LOX | Los Angeles, Santa Barbara | 4 days |
| Aug 27, 12:33 PM PDT | Excessive Heat Warning | HNX | 3 days | |
| Aug 27, 12:33 PM PDT | Heat Advisory | HNX | 56 hr | |
| Aug 27, 1:57 PM PDT | Excessive Heat Warning | LOX | 3 days | |
| Aug 28, 12:05 AM PDT | Dense Fog Advisory | LOX | 9 hr | |
| Aug 28, 2:29 AM PDT | Small Craft Advisory | EKA | 6 days | |
| Aug 28, 2:29 AM PDT | Hazardous Seas Warning | EKA | 59 hr | |
| Aug 28, 2:47 AM PDT | Fire Weather Watch | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 23 hr |
| Aug 28, 1:47 PM PDT | Fire Weather Watch | MFR | Modoc | 14 hr |
| Aug 28, 1:47 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Aug 28, 2:18 PM PDT | Fire Weather Watch | STO | 19 hr | |
| Aug 29, 2:03 AM PDT | Gale Warning | EKA | 4 days | |
| Aug 29, 2:13 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 4 days |
| Aug 29, 2:33 AM PDT | Gale Warning | MTR | 48 hr | |
| Aug 29, 2:33 AM PDT | Small Craft Advisory | MTR | 3 days | |
| Aug 29, 3:44 AM PDT | Red Flag Warning | MFR | Modoc | 40 hr |
| Aug 29, 9:30 AM PDT | Red Flag Warning | STO | 4 days | |
| Aug 29, 12:49 PM PDT | Areal Flood Advisory | SGX | Riverside | 3 hr |
| Aug 29, 12:54 PM PDT | Special Weather Statement | SGX | San Diego | 51 min |
| Aug 29, 1:14 PM PDT | Special Weather Statement | PSR | Riverside | 31 min |
| Aug 29, 1:18 PM PDT | Flash Flood Warning | SGX | Riverside, San Diego | 3 hr |
| Aug 29, 2:35 PM PDT | Special Weather Statement | SGX | San Diego | 40 min |
| Aug 29, 3:30 PM PDT | Special Weather Statement | PSR | Riverside | 30 min |
| Aug 29, 3:51 PM PDT | Areal Flood Advisory | SGX | San Diego | 114 min |
| Aug 29, 4:01 PM PDT | Special Weather Statement | PSR | Riverside | 29 min |
| Aug 29, 4:24 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 3 hr |
| Aug 29, 4:29 PM PDT | Flash Flood Warning | PSR | Riverside, San Bernardino | 3 hr |
| Aug 29, 4:33 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 29, 6:53 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 29, 10:29 PM PDT | Small Craft Advisory | LOX | 5 hr | |
| Aug 30, 1:43 AM PDT | Flash Flood Watch | PSR | Imperial, Riverside, San Bernardino | 3 days |
| Aug 30, 2:38 AM PDT | Flash Flood Watch | SGX | Riverside, San Bernardino, San Diego | 42 hr |
| Aug 30, 3:28 AM PDT | Flash Flood Watch | VEF | San Bernardino | 59 hr |
| Aug 30, 11:30 AM PDT | Areal Flood Advisory | SGX | San Bernardino | 3 hr |
| Aug 30, 12:22 PM PDT | Areal Flood Advisory | SGX | San Diego | 113 min |
| Aug 30, 12:39 PM PDT | Special Weather Statement | SGX | San Diego | 51 min |
| Aug 30, 12:40 PM PDT | Small Craft Advisory | EKA | 20 hr | |
| Aug 30, 1:17 PM PDT | Areal Flood Advisory | SGX | Riverside, San Diego | 118 min |
| Aug 30, 1:17 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 30, 2:14 PM PDT | Small Craft Advisory | MTR | 3 days | |
| Aug 30, 2:22 PM PDT | Areal Flood Advisory | SGX | Riverside | 113 min |
| Aug 30, 2:37 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 30, 2:49 PM PDT | Lake Wind Advisory | REV | Mono | 30 hr |
| Aug 30, 2:55 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 30, 3:47 PM PDT | Dust Storm Advisory | PSR | Imperial, Riverside | 58 min |
| Aug 30, 4:56 PM PDT | Dust Storm Advisory | PSR | Imperial, Riverside, San Bernardino | 94 min |
| Aug 30, 5:14 PM PDT | Flash Flood Warning | PSR | Imperial, Riverside | 4 hr |
| Aug 30, 6:49 PM PDT | Areal Flood Advisory | PSR | Imperial | 3 hr |
| Aug 30, 7:37 PM PDT | Special Weather Statement | PSR | Riverside | 23 min |
| Aug 30, 7:52 PM PDT | Areal Flood Advisory | PSR | Riverside | 23 min |
| Aug 30, 7:58 PM PDT | Special Weather Statement | SGX | Riverside | 47 min |
| Aug 30, 8:13 PM PDT | Flash Flood Warning | PSR | Riverside | 50 min |
| Aug 30, 8:18 PM PDT | Flash Flood Warning | SGX | Riverside | 37 min |
| Aug 30, 9:06 PM PDT | Flash Flood Warning | PSR | Riverside | 5 hr |
| Aug 31, 2:54 AM PDT | Small Craft Advisory | MTR | 11 hr | |
| Aug 31, 5:46 AM PDT | Areal Flood Advisory | PSR | Imperial | 3 hr |
| Aug 31, 1:13 PM PDT | Areal Flood Advisory | PSR | Imperial, Riverside | 6 hr |
| Aug 31, 1:24 PM PDT | Flash Flood Warning | PSR | Imperial, Riverside | 13 hr |
| Aug 31, 2:13 PM PDT | Small Craft Advisory | MTR | 31 hr | |
| Aug 31, 3:30 PM PDT | Special Weather Statement | SGX | San Diego | 45 min |
| Aug 31, 3:48 PM PDT | Special Weather Statement | PSR | Imperial | 87 min |
| Aug 31, 4:13 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 62 min |
| Aug 31, 4:15 PM PDT | Special Weather Statement | PSR | Imperial | 90 min |
| Aug 31, 4:30 PM PDT | Severe Thunderstorm Warning | PSR | Imperial | 75 min |
| Aug 31, 4:55 PM PDT | Special Weather Statement | SGX | 65 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 | 11 |
| Special Weather Statement | 17 |
| Flooding | |
| Flash Flood Warning | 25 |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 26 |
| Heat | |
| Excessive Heat Warning | 16 |
| Excessive Heat Watch | 14 |
| Heat Advisory | 15 |
| Wind and dust | |
| Dust Storm Warning | 6 |
| Dust Storm Advisory | 5 |
| Lake Wind Advisory | 4 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 19 |
| Fire Weather Watch | 14 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Beach Hazards Statement | 2 |
| Marine | |
| Gale Warning | 11 |
| Hazardous Seas Warning | 8 |
| Special Marine Warning | 3 |
| Gale Watch | 8 |
| Hazardous Seas Watch | 2 |
| Small Craft Advisory | 54 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Riverside County54
- San Bernardino County49
- Imperial County26
- San Diego County24
- Modoc County23
- Siskiyou County12
- Lassen County10
- Plumas County10
- Nevada County9
- Placer County9
- El Dorado County8
- Sierra County8
- Mono County7
- Santa Barbara County5
- Alpine County5
- Los Angeles County4
- Inyo County4
- Lake County4
- Mendocino County4
- Trinity County3
- Madera County3
- Humboldt County2
- Tulare County2
- Del Norte County1
- Shasta County1
- Orange County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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. Warning verification from the Mesonet's Cow. Rebuilt daily.