Alert archive / California / Santa Barbara County

Weather alerts in Santa Barbara County, California, 2011

61 weather alerts in 2011, 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 in 2011. Tap one for its archive.

Alerts
61
Warnings
14
Watches
10
Advisories
34
Busiest month
February15 alerts
Busiest day
March 20, 20116 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Santa Barbara County in 2011 had a tornado report inside them.

Santa Barbara County, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings30100%0
Flash flood warnings4250%1100%16 min

Each office's whole area, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Los Angeles, CA: tornado warnings10100%0
NWS Los Angeles, CA: severe thunderstorm warnings17288%2100%17 min
NWS Los Angeles, CA: flash flood warnings24675%1155%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
Jan 1, 6:25 PM PSTWind AdvisoryLOX21 hr
Jan 2, 5:34 AM PSTAreal Flood AdvisoryLOX103 min
Jan 2, 7:24 AM PSTAreal Flood AdvisoryLOX3 hr
Jan 2, 10:02 AM PSTAreal Flood AdvisoryLOX13 hr
Feb 17, 3:47 AM PSTHigh Wind WatchLOX11 hr
Feb 17, 3:47 AM PSTWind AdvisoryLOX47 hr
Feb 17, 7:31 PM PSTFlash Flood WatchLOX55 hr
Feb 18, 1:51 PM PSTAreal Flood AdvisoryLOX60 min
Feb 18, 2:51 PM PSTAreal Flood AdvisoryLOX114 min
Feb 18, 3:16 PM PSTSpecial Weather StatementLOX59 min
Feb 18, 4:32 PM PSTAreal Flood AdvisoryLOX4 hr
Feb 18, 8:35 PM PSTAreal Flood AdvisoryLOX4 hr
Feb 18, 10:05 PM PSTSevere Thunderstorm WarningLOX55 min
Feb 19, 9:17 AM PSTWinter Weather AdvisoryLOX18 hr
Feb 19, 6:06 PM PSTTornado WarningLOX39 min
Feb 24, 3:16 AM PSTWinter Storm WatchLOX24 hr
Feb 25, 3:05 AM PSTWinter Weather AdvisoryLOX32 hr
Feb 25, 3:08 AM PSTWind AdvisoryLOX23 hr
Feb 25, 6:40 PM PSTAreal Flood AdvisoryLOX2 hr
Mar 6, 2:27 PM PSTWind AdvisoryLOX43 hr
Mar 18, 3:07 PM PDTHigh Wind WatchLOX31 hr
Mar 19, 6:18 AM PDTFlash Flood WatchLOX48 hr
Mar 19, 11:27 AM PDTHigh Wind WarningLOX35 hr
Mar 19, 3:36 PM PDTWind AdvisoryLOX31 hr
Mar 19, 10:26 PM PDTAreal Flood AdvisoryLOX23 hr
Mar 20, 10:03 AM PDTAreal Flood AdvisoryLOX117 min
Mar 20, 10:03 AM PDTFlash Flood WarningLOX3 hr
Mar 20, 11:46 AM PDTRiver Flood WarningLOX46 hr
Mar 20, 12:01 PM PDTAreal Flood AdvisoryLOX3 hr
Mar 20, 3:07 PM PDTAreal Flood AdvisoryLOX3 hr
Mar 20, 5:51 PM PDTAreal Flood AdvisoryLOX3 hr
Mar 20, 6:05 PM PDTAreal Flood AdvisoryLOX3 hr
Mar 23, 4:02 AM PDTWind AdvisoryLOX10 hr
Mar 24, 3:20 AM PDTWind AdvisoryLOX24 hr
Apr 8, 2:19 PM PDTFrost AdvisoryLOX19 hr
Apr 9, 1:38 PM PDTFrost AdvisoryLOX19 hr
May 25, 6:34 PM PDTWind AdvisoryLOX4 days
Jun 4, 4:59 AM PDTWind AdvisoryLOX10 hr
Jul 6, 3:31 AM PDTFlash Flood WatchLOX17 hr
Sep 9, 2:24 PM PDTFire Weather WatchLOX14 hr
Sep 10, 3:49 AM PDTFlood WatchLOX36 hr
Sep 10, 6:57 AM PDTSpecial Weather StatementLOX33 min
Sep 10, 11:52 AM PDTSevere Thunderstorm WarningLOX23 min
Sep 10, 12:20 PM PDTSevere Thunderstorm WarningLOX25 min
Sep 10, 8:21 PM PDTSpecial Weather StatementLOX54 min
Sep 13, 4:08 PM PDTFlash Flood WarningLOX3 hr
Sep 13, 4:40 PM PDTFlash Flood WarningLOX3 hr
Sep 13, 5:45 PM PDTFlash Flood WarningLOX3 hr
Sep 23, 3:29 AM PDTRed Flag WarningLOX26 hr
Oct 5, 8:16 AM PDTAreal Flood AdvisoryLOX4 hr
Oct 26, 3:45 AM PDTFrost AdvisoryLOX29 hr
Oct 27, 3:04 AM PDTFrost AdvisoryLOX30 hr
Nov 4, 2:01 PM PDTFrost AdvisoryLOX19 hr
Nov 7, 3:45 AM PSTFrost AdvisoryLOX29 hr
Nov 8, 3:54 AM PSTFreeze WarningLOX29 hr
Nov 9, 1:56 PM PSTFrost AdvisoryLOX19 hr
Nov 20, 5:06 AM PSTAreal Flood AdvisoryLOX8 hr
Dec 2, 4:09 AM PSTFreeze WatchLOX10 hr
Dec 2, 2:24 PM PSTFreeze WatchLOX19 hr
Dec 2, 5:27 PM PSTFreeze WarningLOX16 hr
Dec 3, 9:07 AM PSTFreeze WarningLOX24 hr

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 archive20102012

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.