Alert archive / California / Orange County

Weather alerts in Orange County, California, 2026

61 weather alerts in 2026, 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 2026. Tap one for its archive.

Alerts
61
Warnings
6
Watches
3
Advisories
38
Busiest month
February19 alerts
Busiest day
February 16, 20267 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, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings2150%2100%34 min
Flash flood warnings00

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS San Diego, CA: severe thunderstorm warnings7271%956%17 min
NWS San Diego, CA: flash flood warnings9189%425%13 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

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
Jan 1, 3:06 AM PSTAreal Flood AdvisorySGX4 hr
Jan 1, 7:04 AM PSTAreal Flood AdvisorySGX119 min
Jan 1, 9:02 AM PSTAreal Flood AdvisorySGX3 hr
Jan 7, 11:34 AM PSTWind AdvisorySGX5 days
Jan 20, 7:12 PM PSTDense Fog AdvisorySGX14 hr
Jan 24, 2:47 PM PSTWind AdvisorySGX13 hr
Feb 1, 1:16 AM PSTBeach Hazards StatementSGX44 hr
Feb 3, 3:11 AM PSTWind AdvisorySGX57 hr
Feb 5, 10:32 AM PSTHigh Surf AdvisorySGX67 hr
Feb 14, 11:08 AM PSTHigh Surf AdvisorySGX6 days
Feb 14, 11:33 AM PSTWind AdvisorySGX61 hr
Feb 16, 3:15 AM PSTWind AdvisorySGX4 days
Feb 16, 11:20 AM PSTAreal Flood AdvisorySGX4 hr
Feb 16, 11:59 AM PSTAreal Flood AdvisorySGX4 hr
Feb 16, 12:22 PM PSTAreal Flood AdvisorySGX3 hr
Feb 16, 12:42 PM PSTAreal Flood AdvisorySGX3 hr
Feb 16, 12:54 PM PSTAreal Flood AdvisorySGX3 hr
Feb 16, 3:43 PM PSTAreal Flood AdvisorySGX72 min
Feb 17, 12:46 AM PSTSpecial Weather StatementSGX44 min
Feb 17, 1:18 AM PSTSpecial Weather StatementSGX42 min
Feb 17, 1:55 AM PSTBeach Hazards StatementSGX2 hr
Feb 18, 1:26 AM PSTSevere Thunderstorm WarningSGX64 min
Feb 18, 1:40 AM PSTSpecial Weather StatementLOX65 min
Feb 18, 2:28 AM PSTSevere Thunderstorm WarningSGX62 min
Feb 18, 11:15 AM PSTWind AdvisorySGX39 hr
Mar 5, 12:55 AM PSTWind AdvisorySGX4 days
Mar 10, 12:04 PM PDTHeat AdvisorySGX3 days
Mar 13, 10:31 AM PDTExtreme Heat WatchSGX26 hr
Mar 14, 12:18 PM PDTHeat AdvisorySGX6 days
Mar 15, 12:37 PM PDTBeach Hazards StatementSGX59 hr
Apr 2, 10:51 AM PDTWind AdvisorySGX50 hr
Apr 16, 11:45 AM PDTWind AdvisorySGX29 hr
May 15, 11:57 AM PDTBeach Hazards StatementSGX69 hr
Jun 7, 12:19 PM PDTBeach Hazards StatementSGX4 days
Jun 12, 12:20 PM PDTBeach Hazards StatementSGX9 days
Jun 22, 12:03 PM PDTBeach Hazards StatementSGX3 days
Jul 10, 12:44 PM PDTBeach Hazards StatementSGX5 days
Jul 12, 12:00 PM PDTExtreme Heat WatchSGX23 hr
Jul 13, 10:37 AM PDTHeat AdvisorySGX3 days
Jul 13, 10:37 AM PDTExtreme Heat WarningSGX3 days
Jul 17, 12:05 PM PDTHigh Surf AdvisorySGX4 days
Jul 20, 12:11 PM PDTHeat AdvisorySGX7 days
Jul 22, 12:14 PM PDTBeach Hazards StatementSGX7 days
Jul 27, 1:36 PM PDTCoastal Flood AdvisorySGX5 days
Jul 27, 1:36 PM PDTHigh Surf AdvisorySGX5 days
Jul 28, 1:56 AM PDTHeat AdvisorySGX7 days
Jul 28, 1:56 AM PDTExtreme Heat WarningSGX13 days
Aug 4, 12:24 AM PDTHeat AdvisorySGX6 days
Aug 9, 12:24 PM PDTCoastal Flood AdvisorySGX3 days
Aug 19, 12:58 AM PDTExtreme Heat WarningSGX11 days
Aug 21, 12:23 PM PDTHeat AdvisorySGX8 days
Aug 22, 1:10 PM PDTExtreme Heat WatchSGX36 hr
Aug 25, 1:16 PM PDTBeach Hazards StatementSGX58 hr
Sep 3, 1:32 PM PDTCoastal Flood AdvisorySGX6 days
Sep 3, 1:32 PM PDTHigh Surf AdvisorySGX5 days
Sep 7, 11:09 AM PDTHeat AdvisorySGX3 days
Sep 7, 11:09 AM PDTExtreme Heat WarningSGX4 days
Sep 8, 3:10 AM PDTHeat AdvisorySGX35 hr
Sep 11, 2:30 AM PDTHeat AdvisorySGX18 hr
Sep 24, 12:38 PM PDTBeach Hazards StatementSGX4 days
Sep 26, 2:08 PM PDTCoastal Flood AdvisorySGX4 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 archive2025

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.