Alert archive / California

Weather alerts in Santa Barbara County, California

2,146 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Santa Barbara County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
2,146
Warnings
508
Watches
235
Advisories
1,199
Busiest year
2024322 alerts
Average year
56over 38 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

From 2008 to 2025, 0% of tornado reports in Santa Barbara County fell inside a tornado warning, and 100% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200820100%0
2010020%
201110100%0
201710100%0
201930100%0
202310100%10%
202410100%0

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200820100%0
200940100%0
20105180%250%74 min
201130100%0
2014010%
20162150%60%
201760100%30%
201950100%0
202010100%20%
2021020%
202210100%0
2023020%
2024440%863%22 min
20254250%540%50 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20088363%367%21 min
200930100%0
201040100%50%
20114250%1100%16 min
2013110%0
20144175%450%70 min
20159367%475%92 min
20165260%1100%15 min
20178275%520%67 min
20186350%786%99 min
201912192%110%
202010100%0
202110100%40%
202230100%10%
20237614%4173%164 min
20249633%5078%167 min
202513654%1436%88 min

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

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

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 8, 10:49 AM PDTExtreme Heat WarningLOX57 hr
Aug 24, 1:46 PM PDTRed Flag WarningLOX4 days
Aug 24, 12:44 PM PDTExtreme Heat WarningLOX4 days
Aug 2, 8:23 PM PDTExtreme Heat WarningLOX7 days
Jul 28, 9:57 AM PDTExtreme Heat WarningLOX12 days
Jul 14, 1:28 PM PDTRed Flag WarningLOX44 hr
Jul 13, 8:38 AM PDTExtreme Heat WarningLOX3 days
May 15, 12:21 PM PDTHigh Wind WarningLOX45 hr
Mar 15, 11:55 AM PDTExtreme Heat WarningLOX5 days
Mar 4, 12:07 AM PSTHigh Wind WarningLOX33 hr
Feb 20, 8:01 PM PSTFreeze WarningLOX13 hr
Feb 20, 3:11 AM PSTFreeze WarningLOX5 hr

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.