Alert archive / California / Orange County
Weather alerts in Orange County, California, 2022
115 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Orange County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 115
- Warnings
- 13
- Watches
- 9
- Advisories
- 61
- Busiest month
- September22 alerts
- Busiest day
- September 3, 20228 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Orange County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 0 | 100% | 2 | 0% | |
| Flash flood warnings | 2 | 1 | 50% | 2 | 0% |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS San Diego, CA: tornado warnings | 0 | 1 | 0% | |||
| NWS San Diego, CA: severe thunderstorm warnings | 20 | 1 | 95% | 8 | 13% | 3 min |
| NWS San Diego, CA: flash flood warnings | 67 | 22 | 67% | 93 | 48% | 51 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 | Lasted |
|---|---|---|---|
| Dec 31, 8:13 PM PST | Beach Hazards Statement | SGX | 63 hr |
| Jan 7, 2:44 AM PST | Dense Fog Advisory | SGX | 7 hr |
| Jan 10, 1:54 AM PST | High Surf Advisory | SGX | 6 days |
| Jan 10, 3:20 AM PST | Wind Advisory | SGX | 55 hr |
| Jan 15, 4:53 AM PST | Tsunami Advisory | AAQ | 20 hr |
| Jan 19, 12:27 PM PST | Wind Advisory | SGX | 28 hr |
| Jan 20, 3:26 AM PST | High Wind Watch | SGX | 10 hr |
| Jan 20, 1:42 PM PST | High Wind Warning | SGX | 52 hr |
| Jan 20, 1:42 PM PST | Wind Advisory | SGX | 70 hr |
| Jan 23, 1:24 PM PST | Beach Hazards Statement | SGX | 3 days |
| Jan 24, 1:39 PM PST | Wind Advisory | SGX | 35 hr |
| Jan 26, 12:41 PM PST | Wind Advisory | SGX | 61 hr |
| Feb 1, 3:52 AM PST | Wind Advisory | SGX | 4 days |
| Feb 1, 12:55 PM PST | High Wind Warning | SGX | 38 hr |
| Feb 5, 12:04 PM PST | Wind Advisory | SGX | 50 hr |
| Feb 7, 5:39 PM PST | Excessive Heat Watch | SGX | 18 hr |
| Feb 8, 12:04 PM PST | Heat Advisory | SGX | 5 days |
| Feb 9, 2:08 AM PST | Wind Advisory | SGX | 25 hr |
| Feb 10, 2:40 AM PST | High Wind Warning | SGX | 13 hr |
| Feb 10, 2:40 AM PST | Wind Advisory | SGX | 13 hr |
| Feb 13, 1:15 PM PST | Wind Advisory | SGX | 57 hr |
| Feb 15, 5:36 PM PST | Beach Hazards Statement | SGX | 5 hr |
| Feb 16, 2:35 AM PST | Wind Advisory | SGX | 36 hr |
| Feb 21, 3:18 AM PST | Winter Weather Advisory | SGX | 57 hr |
| Feb 21, 3:20 AM PST | Wind Advisory | SGX | 47 hr |
| Feb 23, 2:49 AM PST | Frost Advisory | SGX | 29 hr |
| Feb 25, 2:30 AM PST | Wind Advisory | SGX | 38 hr |
| Mar 3, 4:44 AM PST | Dense Fog Advisory | SGX | 3 hr |
| Mar 3, 12:29 PM PST | High Surf Advisory | SGX | 72 hr |
| Mar 4, 1:01 AM PST | Beach Hazards Statement | SGX | 3 hr |
| Mar 6, 1:09 PM PST | Wind Advisory | SGX | 29 hr |
| Mar 8, 1:23 PM PST | Wind Advisory | SGX | 3 days |
| Mar 16, 7:22 AM PDT | Beach Hazards Statement | SGX | 28 hr |
| Mar 17, 2:27 AM PDT | Wind Advisory | SGX | 9 hr |
| Mar 20, 3:50 AM PDT | Wind Advisory | SGX | 35 hr |
| Mar 21, 1:35 PM PDT | Wind Advisory | SGX | 24 hr |
| Mar 25, 6:26 AM PDT | Dense Fog Advisory | SGX | 3 hr |
| Mar 27, 7:38 AM PDT | Wind Advisory | SGX | 46 hr |
| Mar 28, 2:27 AM PDT | Beach Hazards Statement | SGX | 6 hr |
| Mar 28, 8:07 AM PDT | High Surf Advisory | SGX | 42 hr |
| Mar 28, 9:14 AM PDT | Flash Flood Watch | SGX | 16 hr |
| Mar 28, 12:02 PM PDT | Areal Flood Advisory | SGX | 3 hr |
| Mar 28, 8:52 PM PDT | Areal Flood Advisory | SGX | 3 hr |
| Apr 4, 1:13 PM PDT | Heat Advisory | SGX | 4 days |
| Apr 5, 1:11 PM PDT | Wind Advisory | SGX | 51 hr |
| Apr 11, 1:05 PM PDT | Beach Hazards Statement | SGX | 46 hr |
| Apr 12, 2:44 AM PDT | Wind Advisory | SGX | 16 hr |
| Apr 21, 2:02 AM PDT | Beach Hazards Statement | SGX | 67 hr |
| May 7, 1:40 AM PDT | Beach Hazards Statement | SGX | 42 hr |
| May 27, 1:55 PM PDT | Beach Hazards Statement | SGX | 4 days |
| Jun 22, 11:24 AM PDT | Special Weather Statement | SGX | 36 min |
| Jun 24, 1:30 PM PDT | Heat Advisory | SGX | 4 days |
| Jul 16, 1:51 AM PDT | Beach Hazards Statement | SGX | 69 hr |
| Jul 18, 1:31 PM PDT | High Surf Advisory | SGX | 66 hr |
| Jul 29, 9:03 PM PDT | Beach Hazards Statement | SGX | 5 days |
| Aug 7, 9:15 AM PDT | Heat Advisory | SGX | 10 hr |
| Aug 26, 12:15 PM PDT | Beach Hazards Statement | SGX | 53 hr |
| Aug 28, 1:09 PM PDT | Excessive Heat Watch | SGX | 24 hr |
| Aug 29, 12:53 PM PDT | Excessive Heat Warning | SGX | 11 days |
| Sep 3, 2:01 PM PDT | Severe Thunderstorm Warning | SGX | 59 min |
| Sep 3, 2:22 PM PDT | Areal Flood Advisory | SGX | 2 hr |
| Sep 3, 2:32 PM PDT | Severe Thunderstorm Warning | SGX | 43 min |
| Sep 3, 2:43 PM PDT | Flash Flood Warning | SGX | 3 hr |
| Sep 3, 2:48 PM PDT | Severe Thunderstorm Warning | SGX | 24 min |
| Sep 3, 2:52 PM PDT | Beach Hazards Statement | SGX | 63 min |
| Sep 3, 2:56 PM PDT | Areal Flood Advisory | SGX | 2 hr |
| Sep 3, 3:00 PM PDT | Special Weather Statement | SGX | 45 min |
| Sep 7, 1:43 PM PDT | Beach Hazards Statement | SGX | 4 days |
| Sep 8, 2:19 PM PDT | Wind Advisory | SGX | 31 hr |
| Sep 11, 3:05 PM PDT | Special Weather Statement | SGX | 40 min |
| Sep 11, 3:12 PM PDT | Special Weather Statement | SGX | 33 min |
| Sep 11, 3:46 PM PDT | Severe Thunderstorm Warning | SGX | 44 min |
| Sep 11, 4:23 PM PDT | Special Weather Statement | SGX | 37 min |
| Sep 11, 5:05 PM PDT | Areal Flood Advisory | SGX | 115 min |
| Sep 11, 5:24 PM PDT | Flash Flood Warning | SGX | 3 hr |
| Sep 12, 3:23 PM PDT | Special Weather Statement | SGX | 52 min |
| Sep 12, 3:38 PM PDT | Areal Flood Advisory | SGX | 2 hr |
| Sep 23, 12:41 PM PDT | Excessive Heat Watch | SGX | 24 hr |
| Sep 23, 12:41 PM PDT | Excessive Heat Warning | SGX | 5 days |
| Sep 24, 1:05 PM PDT | Heat Advisory | SGX | 4 days |
| Sep 28, 7:28 AM PDT | Dense Fog Advisory | SGX | 3 hr |
| Oct 7, 4:13 PM PDT | Special Weather Statement | SGX | 47 min |
| Oct 8, 2:46 PM PDT | Special Weather Statement | SGX | 44 min |
| Oct 8, 3:16 PM PDT | Special Weather Statement | SGX | 14 min |
| Oct 8, 3:31 PM PDT | Special Weather Statement | SGX | 29 min |
| Oct 8, 3:56 PM PDT | Special Weather Statement | SGX | 34 min |
| Oct 11, 5:28 PM PDT | Beach Hazards Statement | SGX | 7 hr |
| Oct 12, 7:58 AM PDT | Beach Hazards Statement | SGX | 3 hr |
| Oct 12, 9:07 AM PDT | Areal Flood Advisory | SGX | 57 min |
| Oct 19, 2:30 AM PDT | Heat Advisory | SGX | 16 hr |
| Oct 21, 12:58 PM PDT | Beach Hazards Statement | SGX | 4 days |
| Oct 23, 10:44 AM PDT | Wind Advisory | SGX | 27 hr |
| Nov 2, 3:11 AM PDT | Wind Advisory | SGX | 32 hr |
| Nov 6, 12:53 PM PST | Flash Flood Watch | SGX | 62 hr |
| Nov 7, 12:48 PM PST | Flood Watch | SGX | 38 hr |
| Nov 7, 1:15 PM PST | Wind Advisory | SGX | 45 hr |
| Nov 8, 6:32 AM PST | Areal Flood Advisory | SGX | 4 hr |
| Nov 8, 7:48 AM PST | Areal Flood Advisory | SGX | 2 hr |
| Nov 8, 9:36 AM PST | Mesoscale Discussion | SPC | 2 hr |
| Nov 8, 1:55 PM PST | Areal Flood Advisory | SGX | 4 hr |
| Nov 8, 6:15 PM PST | Areal Flood Advisory | SGX | 3 hr |
| Nov 13, 12:53 PM PST | High Wind Watch | SGX | 25 hr |
| Nov 14, 1:24 PM PST | High Wind Warning | SGX | 59 hr |
| Nov 15, 2:43 AM PST | Wind Advisory | SGX | 42 hr |
| Nov 17, 1:06 PM PST | Fire Weather Watch | SGX | 20 hr |
| Nov 18, 9:32 AM PST | Red Flag Warning | SGX | 36 hr |
| Nov 22, 1:13 PM PST | Wind Advisory | SGX | 71 hr |
| Dec 9, 1:29 PM PST | Wind Advisory | SGX | 67 hr |
| Dec 11, 3:11 AM PST | Winter Weather Advisory | SGX | 37 hr |
| Dec 11, 6:50 AM PST | Areal Flood Advisory | SGX | 2 hr |
| Dec 11, 7:32 AM PST | Areal Flood Advisory | SGX | 2 hr |
| Dec 12, 5:11 AM PST | Beach Hazards Statement | SGX | 11 hr |
| Dec 21, 12:27 PM PST | Beach Hazards Statement | SGX | 72 hr |
| Dec 23, 5:26 PM PST | Dense Fog Advisory | SGX | 15 hr |
| Dec 26, 12:52 PM PST | High Surf Advisory | SGX | 3 days |
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 | 4 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 13 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 3 |
| Heat Advisory | 6 |
| Cold | |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 2 |
| Wind Advisory | 28 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Coast and beach | |
| High Surf Advisory | 5 |
| Tsunami Advisory | 1 |
| Beach Hazards Statement | 20 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.