Alert archive / California / 2009
Weather alerts in California, August 2009
152 weather alerts in August 2009, 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 2009. Tap one for its archive.
- Alerts
- 152
- Warnings
- 45
- Watches
- 18
- Advisories
- 67
- Busiest day
- August 23, 200916 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, 5:12 PM PDT | Special Weather Statement | REV | Sierra | 33 min |
| Jul 31, 5:27 PM PDT | Special Weather Statement | REV | Plumas | 33 min |
| Jul 31, 6:27 PM PDT | Special Weather Statement | REV | Plumas | 18 min |
| Jul 31, 6:34 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 26 min |
| Aug 1, 2:45 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Aug 1, 8:52 AM PDT | Small Craft Advisory | LOX | 4 days | |
| Aug 1, 2:46 PM PDT | Special Weather Statement | REV | Lassen | 29 min |
| Aug 1, 3:34 PM PDT | Mesoscale Discussion | SPC | Lassen, Modoc, Siskiyou | 56 min |
| Aug 1, 7:41 PM PDT | Special Weather Statement | REV | Lassen | 49 min |
| Aug 1, 9:43 PM PDT | Small Craft Advisory | MTR | 3 hr | |
| Aug 1, 11:10 PM PDT | Special Weather Statement | MFR | Siskiyou | 50 min |
| Aug 2, 2:44 AM PDT | Small Craft Advisory | MTR | 22 hr | |
| Aug 2, 1:18 PM PDT | Mesoscale Discussion | SPC | Siskiyou | 117 min |
| Aug 2, 2:31 PM PDT | Special Weather Statement | MFR | Modoc | 44 min |
| Aug 2, 2:37 PM PDT | Fire Weather Watch | REV | El Dorado, Lassen, Nevada, Placer, Plumas, Sierra | 25 hr |
| Aug 2, 2:37 PM PDT | Fire Weather Watch | REV | Lassen | 40 hr |
| Aug 2, 2:39 PM PDT | Severe Thunderstorm Watch | SPC | Modoc, Siskiyou | 6 hr |
| Aug 2, 2:50 PM PDT | Special Weather Statement | REV | Lassen | 25 min |
| Aug 2, 3:20 PM PDT | Special Weather Statement | MFR | Modoc | 25 min |
| Aug 2, 3:26 PM PDT | Severe Thunderstorm Warning | MFR | Modoc | 49 min |
| Aug 2, 3:48 PM PDT | Mesoscale Discussion | SPC | Modoc, Siskiyou | 57 min |
| Aug 2, 4:15 PM PDT | Severe Thunderstorm Warning | EKA | Del Norte | 30 min |
| Aug 2, 5:27 PM PDT | Mesoscale Discussion | SPC | Modoc, Siskiyou | 63 min |
| Aug 2, 6:46 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Sierra | 32 min |
| Aug 2, 6:55 PM PDT | Mesoscale Discussion | SPC | Modoc, Siskiyou | 65 min |
| Aug 2, 7:00 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Plumas | 30 min |
| Aug 2, 7:41 PM PDT | Special Weather Statement | REV | Sierra | 64 min |
| Aug 2, 8:29 PM PDT | Special Weather Statement | REV | Lassen | 61 min |
| Aug 3, 2:23 AM PDT | Small Craft Advisory | MTR | 19 hr | |
| Aug 3, 3:24 PM PDT | Fire Weather Watch | STO | 48 hr | |
| Aug 4, 2:31 AM PDT | Small Craft Advisory | MTR | 18 hr | |
| Aug 4, 6:32 AM PDT | Fire Weather Watch | VEF | San Bernardino | 8 hr |
| Aug 4, 6:34 AM PDT | Red Flag Warning | REV | Lassen | 38 hr |
| Aug 4, 2:37 PM PDT | Red Flag Warning | VEF | Inyo, San Bernardino, Tulare | 54 hr |
| Aug 4, 2:48 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 31 hr |
| Aug 4, 3:34 PM PDT | Dense Smoke Advisory | STO | 25 hr | |
| Aug 5, 9:19 AM PDT | Small Craft Advisory | LOX | 4 days | |
| Aug 5, 2:50 PM PDT | Fire Weather Watch | PSR | Riverside, San Bernardino | 29 hr |
| Aug 5, 2:56 PM PDT | Wind Advisory | PSR | 29 hr | |
| Aug 5, 3:10 PM PDT | Wind Advisory | VEF | Inyo, San Bernardino | 30 hr |
| Aug 5, 3:38 PM PDT | Red Flag Warning | STO | 22 hr | |
| Aug 5, 4:04 PM PDT | Special Weather Statement | EKA | Trinity | 26 min |
| Aug 5, 5:00 PM PDT | Special Weather Statement | EKA | Trinity | 30 min |
| Aug 5, 5:10 PM PDT | Special Weather Statement | EKA | Humboldt | 35 min |
| Aug 5, 5:30 PM PDT | Special Weather Statement | EKA | Trinity | 30 min |
| Aug 5, 5:41 PM PDT | Severe Thunderstorm Warning | EKA | Trinity | 34 min |
| Aug 5, 6:11 PM PDT | Severe Thunderstorm Warning | EKA | Humboldt, Trinity | 19 min |
| Aug 5, 6:29 PM PDT | Severe Thunderstorm Warning | EKA | Humboldt, Trinity | 16 min |
| Aug 5, 7:16 PM PDT | Special Weather Statement | STO | Trinity | 89 min |
| Aug 5, 9:41 PM PDT | Wind Advisory | HNX | 23 hr | |
| Aug 6, 8:51 AM PDT | Red Flag Warning | SGX | Riverside, San Bernardino | 12 hr |
| Aug 7, 2:46 AM PDT | Gale Watch | LOX | 7 hr | |
| Aug 7, 2:46 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Aug 7, 8:52 AM PDT | Small Craft Advisory | MTR | 10 days | |
| Aug 7, 9:27 AM PDT | Gale Warning | LOX | 12 hr | |
| Aug 7, 2:09 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 6 hr |
| Aug 7, 2:14 PM PDT | Small Craft Advisory | EKA | 4 days | |
| Aug 8, 2:52 AM PDT | Small Craft Advisory | LOX | 30 hr | |
| Aug 8, 3:46 AM PDT | Small Craft Advisory | MTR | 21 hr | |
| Aug 9, 9:03 AM PDT | Small Craft Advisory | LOX | 12 hr | |
| Aug 11, 8:20 PM PDT | Small Craft Advisory | LOX | 31 hr | |
| Aug 12, 2:25 AM PDT | Small Craft Advisory | EKA | 5 days | |
| Aug 12, 2:43 AM PDT | Small Craft Advisory | LOX | 5 days | |
| Aug 12, 2:55 PM PDT | Gale Watch | EKA | 22 hr | |
| Aug 13, 3:06 AM PDT | Hazardous Seas Watch | EKA | 10 hr | |
| Aug 13, 12:50 PM PDT | Gale Warning | EKA | 3 days | |
| Aug 13, 12:50 PM PDT | Hazardous Seas Warning | EKA | 5 days | |
| Aug 13, 2:26 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Mono, Nevada, Placer | 30 hr |
| Aug 13, 9:10 PM PDT | Small Craft Advisory | MTR | 24 hr | |
| Aug 14, 2:35 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Aug 14, 2:40 AM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 29 hr |
| Aug 14, 3:19 AM PDT | Red Flag Warning | REV | 17 hr | |
| Aug 14, 4:09 AM PDT | Wind Advisory | VEF | San Bernardino | 18 hr |
| Aug 16, 3:15 AM PDT | Small Craft Advisory for Winds | EKA | 18 hr | |
| Aug 16, 9:04 AM PDT | Small Craft Advisory | LOX | 18 hr | |
| Aug 16, 5:53 PM PDT | Small Craft Advisory | EKA | 3 hr | |
| Aug 16, 9:08 PM PDT | Small Craft Advisory for Winds | EKA | 56 hr | |
| Aug 16, 9:08 PM PDT | Small Craft Advisory for Hazardous Seas | EKA | 42 hr | |
| Aug 17, 2:25 AM PDT | Small Craft Advisory | MTR | 21 hr | |
| Aug 18, 3:34 AM PDT | Small Craft Advisory | MTR | 19 hr | |
| Aug 18, 2:45 PM PDT | Small Craft Advisory for Hazardous Seas | EKA | 14 hr | |
| Aug 19, 2:56 AM PDT | Small Craft Advisory | MTR | 24 hr | |
| Aug 20, 2:39 AM PDT | Gale Watch | EKA | 25 hr | |
| Aug 20, 2:39 AM PDT | Small Craft Advisory | EKA | 48 hr | |
| Aug 20, 2:39 AM PDT | Hazardous Seas Watch | EKA | 25 hr | |
| Aug 20, 3:21 AM PDT | Small Craft Advisory | MTR | 22 hr | |
| Aug 20, 2:14 PM PDT | Small Craft Advisory | MTR | 5 days | |
| Aug 20, 2:43 PM PDT | Excessive Heat Warning | VEF | Inyo, San Bernardino | 28 hr |
| Aug 21, 3:09 AM PDT | Gale Warning | EKA | 60 hr | |
| Aug 21, 3:09 AM PDT | Hazardous Seas Warning | EKA | 60 hr | |
| Aug 21, 1:33 PM PDT | Flash Flood Watch | SGX | Riverside, San Bernardino, San Diego | 30 hr |
| Aug 21, 9:25 PM PDT | Special Weather Statement | PSR | Imperial | 65 min |
| Aug 22, 2:45 AM PDT | Small Craft Advisory for Hazardous Seas | EKA | 48 hr | |
| Aug 22, 12:52 PM PDT | High Surf Advisory | SGX | San Diego | 3 days |
| Aug 22, 3:33 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 107 min |
| Aug 22, 3:40 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 112 min |
| Aug 22, 4:29 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 46 min |
| Aug 22, 5:12 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 22, 5:14 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 46 min |
| Aug 22, 5:51 PM PDT | Areal Flood Advisory | SGX | San Diego | 99 min |
| Aug 22, 6:00 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 30 min |
| Aug 23, 2:43 AM PDT | Small Craft Advisory | MTR | 45 hr | |
| Aug 23, 1:16 PM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
| Aug 23, 1:27 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 23, 2:45 PM PDT | Small Craft Advisory | EKA | 13 hr | |
| Aug 23, 3:11 PM PDT | Severe Thunderstorm Watch | SPC | San Bernardino | 6 hr |
| Aug 23, 3:54 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Aug 23, 4:12 PM PDT | Flash Flood Warning | LOX | Ventura | 63 min |
| Aug 23, 4:13 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 47 min |
| Aug 23, 4:17 PM PDT | Flash Flood Warning | SGX | San Diego | 88 min |
| Aug 23, 4:23 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 37 min |
| Aug 23, 4:53 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 37 min |
| Aug 23, 4:57 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 34 min |
| Aug 23, 5:51 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 2 hr |
| Aug 23, 6:11 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 30 min |
| Aug 23, 7:24 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 36 min |
| Aug 23, 7:56 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 34 min |
| Aug 24, 3:16 AM PDT | Small Craft Advisory for Winds | EKA | 18 hr | |
| Aug 24, 3:16 AM PDT | Small Craft Advisory for Hazardous Seas | EKA | 5 hr | |
| Aug 24, 8:42 PM PDT | Small Craft Advisory | LOX | 12 hr | |
| Aug 24, 8:59 PM PDT | Small Craft Advisory | EKA | 6 hr | |
| Aug 25, 3:17 AM PDT | Small Craft Advisory for Winds | EKA | 12 hr | |
| Aug 25, 9:03 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Aug 25, 9:55 AM PDT | Fire Weather Watch | LOX | 6 hr | |
| Aug 25, 1:52 PM PDT | Excessive Heat Watch | PSR | 24 hr | |
| Aug 25, 3:48 PM PDT | Red Flag Warning | LOX | 6 days | |
| Aug 25, 10:45 PM PDT | Small Craft Advisory | MTR | 5 hr | |
| Aug 26, 3:38 AM PDT | Small Craft Advisory | MTR | 21 hr | |
| Aug 26, 8:32 AM PDT | Small Craft Advisory for Hazardous Seas | EKA | 5 hr | |
| Aug 26, 8:44 AM PDT | Red Flag Warning | HNX | 60 hr | |
| Aug 26, 1:47 PM PDT | Excessive Heat Warning | PSR | 30 hr | |
| Aug 26, 1:47 PM PDT | Excessive Heat Warning | PSR | 4 days | |
| Aug 27, 2:58 AM PDT | Small Craft Advisory | LOX | 30 hr | |
| Aug 27, 3:35 AM PDT | Excessive Heat Watch | VEF | Inyo, San Bernardino | 25 hr |
| Aug 27, 3:35 AM PDT | Excessive Heat Warning | VEF | Inyo, San Bernardino | 39 hr |
| Aug 27, 3:48 AM PDT | Small Craft Advisory | MTR | 5 days | |
| Aug 27, 4:01 AM PDT | Red Flag Warning | MTR | Monterey, San Benito | 32 hr |
| Aug 27, 2:51 PM PDT | Excessive Heat Warning | PSR | 53 hr | |
| Aug 27, 9:48 PM PDT | Small Craft Advisory | MTR | 17 hr | |
| Aug 27, 10:51 PM PDT | Wind Advisory | LOX | 4 hr | |
| Aug 28, 2:53 AM PDT | Gale Watch | LOX | 6 hr | |
| Aug 28, 2:54 AM PDT | Small Craft Advisory | EKA | 3 days | |
| Aug 28, 4:22 AM PDT | Excessive Heat Warning | VEF | Inyo, San Bernardino | 39 hr |
| Aug 28, 9:11 AM PDT | Gale Warning | LOX | 5 hr | |
| Aug 28, 9:11 AM PDT | Small Craft Advisory | LOX | 12 hr | |
| Aug 28, 7:00 PM PDT | Flood Watch | MTR | Alameda, Contra Costa | 45 hr |
| Aug 29, 2:40 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Aug 29, 3:34 AM PDT | Excessive Heat Warning | PSR | 40 hr | |
| Aug 29, 9:41 AM PDT | Red Flag Warning | REV | El Dorado, Nevada, Placer, Sierra | 36 hr |
| Aug 29, 2:08 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Mono, Nevada, Placer | 32 hr |
| Aug 30, 12:02 PM PDT | Small Craft Advisory | LOX | 51 hr | |
| Aug 31, 3:05 AM PDT | Small Craft Advisory | MTR | 18 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 | 18 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 17 |
| Flooding | |
| Flash Flood Warning | 5 |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 5 |
| Heat | |
| Excessive Heat Warning | 7 |
| Excessive Heat Watch | 2 |
| Cold | |
| Frost Advisory | 2 |
| Wind and dust | |
| Lake Wind Advisory | 3 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 9 |
| Fire Weather Watch | 6 |
| Fog and smoke | |
| Dense Smoke Advisory | 1 |
| Coast and beach | |
| High Surf Advisory | 1 |
| Marine | |
| Gale Warning | 4 |
| Hazardous Seas Warning | 2 |
| Gale Watch | 4 |
| Hazardous Seas Watch | 2 |
| Small Craft Advisory | 41 |
| Small Craft Advisory for Hazardous Seas | 5 |
| Small Craft Advisory for Winds | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County29
- Lassen County12
- Modoc County10
- Siskiyou County9
- Trinity County7
- Sierra County6
- Inyo County6
- Plumas County5
- El Dorado County5
- Nevada County5
- Placer County5
- San Diego County4
- Alpine County3
- Mono County3
- Riverside County3
- Humboldt County3
- Del Norte County1
- Tulare County1
- Imperial County1
- Ventura County1
- Monterey County1
- San Benito County1
- Alameda County1
- Contra Costa County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.