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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings40100%20%
Flash flood warnings2150%20%

Each office's whole area, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS San Diego, CA: tornado warnings010%
NWS San Diego, CA: severe thunderstorm warnings20195%813%3 min
NWS San Diego, CA: flash flood warnings672267%9348%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.

IssuedProductOfficeLasted
Dec 31, 8:13 PM PSTBeach Hazards StatementSGX63 hr
Jan 7, 2:44 AM PSTDense Fog AdvisorySGX7 hr
Jan 10, 1:54 AM PSTHigh Surf AdvisorySGX6 days
Jan 10, 3:20 AM PSTWind AdvisorySGX55 hr
Jan 15, 4:53 AM PSTTsunami AdvisoryAAQ20 hr
Jan 19, 12:27 PM PSTWind AdvisorySGX28 hr
Jan 20, 3:26 AM PSTHigh Wind WatchSGX10 hr
Jan 20, 1:42 PM PSTHigh Wind WarningSGX52 hr
Jan 20, 1:42 PM PSTWind AdvisorySGX70 hr
Jan 23, 1:24 PM PSTBeach Hazards StatementSGX3 days
Jan 24, 1:39 PM PSTWind AdvisorySGX35 hr
Jan 26, 12:41 PM PSTWind AdvisorySGX61 hr
Feb 1, 3:52 AM PSTWind AdvisorySGX4 days
Feb 1, 12:55 PM PSTHigh Wind WarningSGX38 hr
Feb 5, 12:04 PM PSTWind AdvisorySGX50 hr
Feb 7, 5:39 PM PSTExcessive Heat WatchSGX18 hr
Feb 8, 12:04 PM PSTHeat AdvisorySGX5 days
Feb 9, 2:08 AM PSTWind AdvisorySGX25 hr
Feb 10, 2:40 AM PSTHigh Wind WarningSGX13 hr
Feb 10, 2:40 AM PSTWind AdvisorySGX13 hr
Feb 13, 1:15 PM PSTWind AdvisorySGX57 hr
Feb 15, 5:36 PM PSTBeach Hazards StatementSGX5 hr
Feb 16, 2:35 AM PSTWind AdvisorySGX36 hr
Feb 21, 3:18 AM PSTWinter Weather AdvisorySGX57 hr
Feb 21, 3:20 AM PSTWind AdvisorySGX47 hr
Feb 23, 2:49 AM PSTFrost AdvisorySGX29 hr
Feb 25, 2:30 AM PSTWind AdvisorySGX38 hr
Mar 3, 4:44 AM PSTDense Fog AdvisorySGX3 hr
Mar 3, 12:29 PM PSTHigh Surf AdvisorySGX72 hr
Mar 4, 1:01 AM PSTBeach Hazards StatementSGX3 hr
Mar 6, 1:09 PM PSTWind AdvisorySGX29 hr
Mar 8, 1:23 PM PSTWind AdvisorySGX3 days
Mar 16, 7:22 AM PDTBeach Hazards StatementSGX28 hr
Mar 17, 2:27 AM PDTWind AdvisorySGX9 hr
Mar 20, 3:50 AM PDTWind AdvisorySGX35 hr
Mar 21, 1:35 PM PDTWind AdvisorySGX24 hr
Mar 25, 6:26 AM PDTDense Fog AdvisorySGX3 hr
Mar 27, 7:38 AM PDTWind AdvisorySGX46 hr
Mar 28, 2:27 AM PDTBeach Hazards StatementSGX6 hr
Mar 28, 8:07 AM PDTHigh Surf AdvisorySGX42 hr
Mar 28, 9:14 AM PDTFlash Flood WatchSGX16 hr
Mar 28, 12:02 PM PDTAreal Flood AdvisorySGX3 hr
Mar 28, 8:52 PM PDTAreal Flood AdvisorySGX3 hr
Apr 4, 1:13 PM PDTHeat AdvisorySGX4 days
Apr 5, 1:11 PM PDTWind AdvisorySGX51 hr
Apr 11, 1:05 PM PDTBeach Hazards StatementSGX46 hr
Apr 12, 2:44 AM PDTWind AdvisorySGX16 hr
Apr 21, 2:02 AM PDTBeach Hazards StatementSGX67 hr
May 7, 1:40 AM PDTBeach Hazards StatementSGX42 hr
May 27, 1:55 PM PDTBeach Hazards StatementSGX4 days
Jun 22, 11:24 AM PDTSpecial Weather StatementSGX36 min
Jun 24, 1:30 PM PDTHeat AdvisorySGX4 days
Jul 16, 1:51 AM PDTBeach Hazards StatementSGX69 hr
Jul 18, 1:31 PM PDTHigh Surf AdvisorySGX66 hr
Jul 29, 9:03 PM PDTBeach Hazards StatementSGX5 days
Aug 7, 9:15 AM PDTHeat AdvisorySGX10 hr
Aug 26, 12:15 PM PDTBeach Hazards StatementSGX53 hr
Aug 28, 1:09 PM PDTExcessive Heat WatchSGX24 hr
Aug 29, 12:53 PM PDTExcessive Heat WarningSGX11 days
Sep 3, 2:01 PM PDTSevere Thunderstorm WarningSGX59 min
Sep 3, 2:22 PM PDTAreal Flood AdvisorySGX2 hr
Sep 3, 2:32 PM PDTSevere Thunderstorm WarningSGX43 min
Sep 3, 2:43 PM PDTFlash Flood Warning Considerable damage threatSGX3 hr
Sep 3, 2:48 PM PDTSevere Thunderstorm WarningSGX24 min
Sep 3, 2:52 PM PDTBeach Hazards StatementSGX63 min
Sep 3, 2:56 PM PDTAreal Flood AdvisorySGX2 hr
Sep 3, 3:00 PM PDTSpecial Weather StatementSGX45 min
Sep 7, 1:43 PM PDTBeach Hazards StatementSGX4 days
Sep 8, 2:19 PM PDTWind AdvisorySGX31 hr
Sep 11, 3:05 PM PDTSpecial Weather StatementSGX40 min
Sep 11, 3:12 PM PDTSpecial Weather StatementSGX33 min
Sep 11, 3:46 PM PDTSevere Thunderstorm WarningSGX44 min
Sep 11, 4:23 PM PDTSpecial Weather StatementSGX37 min
Sep 11, 5:05 PM PDTAreal Flood AdvisorySGX115 min
Sep 11, 5:24 PM PDTFlash Flood Warning Considerable damage threatSGX3 hr
Sep 12, 3:23 PM PDTSpecial Weather StatementSGX52 min
Sep 12, 3:38 PM PDTAreal Flood AdvisorySGX2 hr
Sep 23, 12:41 PM PDTExcessive Heat WatchSGX24 hr
Sep 23, 12:41 PM PDTExcessive Heat WarningSGX5 days
Sep 24, 1:05 PM PDTHeat AdvisorySGX4 days
Sep 28, 7:28 AM PDTDense Fog AdvisorySGX3 hr
Oct 7, 4:13 PM PDTSpecial Weather StatementSGX47 min
Oct 8, 2:46 PM PDTSpecial Weather StatementSGX44 min
Oct 8, 3:16 PM PDTSpecial Weather StatementSGX14 min
Oct 8, 3:31 PM PDTSpecial Weather StatementSGX29 min
Oct 8, 3:56 PM PDTSpecial Weather StatementSGX34 min
Oct 11, 5:28 PM PDTBeach Hazards StatementSGX7 hr
Oct 12, 7:58 AM PDTBeach Hazards StatementSGX3 hr
Oct 12, 9:07 AM PDTAreal Flood AdvisorySGX57 min
Oct 19, 2:30 AM PDTHeat AdvisorySGX16 hr
Oct 21, 12:58 PM PDTBeach Hazards StatementSGX4 days
Oct 23, 10:44 AM PDTWind AdvisorySGX27 hr
Nov 2, 3:11 AM PDTWind AdvisorySGX32 hr
Nov 6, 12:53 PM PSTFlash Flood WatchSGX62 hr
Nov 7, 12:48 PM PSTFlood WatchSGX38 hr
Nov 7, 1:15 PM PSTWind AdvisorySGX45 hr
Nov 8, 6:32 AM PSTAreal Flood AdvisorySGX4 hr
Nov 8, 7:48 AM PSTAreal Flood AdvisorySGX2 hr
Nov 8, 9:36 AM PSTMesoscale DiscussionSPC2 hr
Nov 8, 1:55 PM PSTAreal Flood AdvisorySGX4 hr
Nov 8, 6:15 PM PSTAreal Flood AdvisorySGX3 hr
Nov 13, 12:53 PM PSTHigh Wind WatchSGX25 hr
Nov 14, 1:24 PM PSTHigh Wind WarningSGX59 hr
Nov 15, 2:43 AM PSTWind AdvisorySGX42 hr
Nov 17, 1:06 PM PSTFire Weather WatchSGX20 hr
Nov 18, 9:32 AM PSTRed Flag WarningSGX36 hr
Nov 22, 1:13 PM PSTWind AdvisorySGX71 hr
Dec 9, 1:29 PM PSTWind AdvisorySGX67 hr
Dec 11, 3:11 AM PSTWinter Weather AdvisorySGX37 hr
Dec 11, 6:50 AM PSTAreal Flood AdvisorySGX2 hr
Dec 11, 7:32 AM PSTAreal Flood AdvisorySGX2 hr
Dec 12, 5:11 AM PSTBeach Hazards StatementSGX11 hr
Dec 21, 12:27 PM PSTBeach Hazards StatementSGX72 hr
Dec 23, 5:26 PM PSTDense Fog AdvisorySGX15 hr
Dec 26, 12:52 PM PSTHigh Surf AdvisorySGX3 days

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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.