Alert archive / California / Del Norte County

Weather alerts in Del Norte County, California, 2016

71 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Del Norte County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts
71
Warnings
10
Watches
9
Advisories
34
Busiest month
December22 alerts
Busiest day
October 14, 20166 alerts

Over time

By month

Warning verification

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

Del Norte County, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%0
Flash flood warnings020%

Each office's whole area, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Eureka, CA: severe thunderstorm warnings50100%0
NWS Eureka, CA: flash flood warnings0200%

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 13, 9:27 AM PSTSpecial Weather StatementEKA48 min
Jan 17, 5:18 AM PSTAreal Flood AdvisoryEKA3 hr
Jan 17, 8:11 AM PSTAreal Flood AdvisoryEKA13 hr
Jan 19, 9:05 AM PSTSpecial Weather StatementEKA55 min
Jan 19, 9:33 AM PSTSevere Thunderstorm WarningEKA42 min
Jan 19, 10:06 AM PSTSpecial Weather StatementEKA24 min
Jan 22, 1:06 AM PSTAreal Flood AdvisoryEKA3 hr
Jan 29, 9:01 AM PSTAreal Flood AdvisoryEKA3 hr
Feb 17, 1:47 PM PSTSpecial Weather StatementEKA43 min
Feb 19, 8:04 AM PSTSpecial Weather StatementEKA26 min
Mar 5, 4:13 PM PSTAreal Flood AdvisoryEKA6 hr
Mar 6, 5:41 PM PSTSpecial Weather StatementEKA49 min
Mar 12, 3:55 AM PSTSpecial Weather StatementEKA65 min
Apr 13, 6:21 PM PDTSpecial Weather StatementEKA39 min
Oct 2, 9:21 AM PDTSpecial Weather StatementEKA39 min
Oct 11, 1:31 PM PDTHigh Wind WatchEKA15 hr
Oct 12, 4:44 AM PDTHigh Wind WarningEKA42 hr
Oct 12, 4:44 AM PDTWind AdvisoryEKA41 hr
Oct 12, 2:06 PM PDTHigh Surf AdvisoryEKA46 hr
Oct 13, 2:30 PM PDTCoastal Flood AdvisoryEKA22 hr
Oct 13, 5:14 PM PDTAreal Flood AdvisoryEKA4 hr
Oct 13, 9:21 PM PDTAreal Flood AdvisoryEKA114 min
Oct 13, 11:11 PM PDTAreal Flood AdvisoryEKA3 hr
Oct 13, 11:56 PM PDTHigh Wind WatchEKA16 hr
Oct 14, 1:24 PM PDTSpecial Weather StatementEKA36 min
Oct 14, 3:31 PM PDTHigh Wind WarningEKA24 hr
Oct 15, 3:26 AM PDTFlood WatchEKA12 hr
Oct 16, 2:48 AM PDTCoastal Flood AdvisoryEKA11 hr
Oct 16, 2:28 PM PDTAreal Flood AdvisoryEKA62 min
Oct 16, 5:48 PM PDTSpecial Weather StatementEKA27 min
Oct 16, 6:25 PM PDTSpecial Weather StatementEKA35 min
Oct 16, 6:53 PM PDTSpecial Weather StatementEKA22 min
Oct 16, 7:12 PM PDTSpecial Weather StatementEKA18 min
Oct 16, 8:21 PM PDTSpecial Weather StatementEKA24 min
Nov 2, 10:45 AM PDTBeach Hazards StatementEKA24 hr
Nov 3, 11:16 AM PDTBeach Hazards StatementEKA8 hr
Nov 4, 8:57 PM PDTHigh Surf AdvisoryEKA35 hr
Nov 15, 3:22 PM PSTFreeze WatchEKA23 hr
Nov 16, 2:36 PM PSTFreeze WarningEKA18 hr
Nov 16, 9:50 PM PSTFrost AdvisoryEKA11 hr
Nov 17, 3:23 PM PSTWind AdvisoryEKA36 hr
Nov 24, 3:09 AM PSTWind AdvisoryEKA30 hr
Nov 24, 3:26 AM PSTFlood WatchEKA29 hr
Nov 25, 8:51 AM PSTWind AdvisoryEKA16 hr
Nov 25, 8:52 AM PSTFlood WatchEKA6 hr
Nov 25, 3:07 PM PSTWinter Weather AdvisoryEKA41 hr
Nov 26, 7:35 AM PSTWind AdvisoryEKA5 hr
Nov 28, 5:22 AM PSTHigh Surf AdvisoryEKA36 hr
Nov 30, 2:45 PM PSTFrost AdvisoryEKA18 hr
Dec 1, 2:10 PM PSTFrost AdvisoryEKA19 hr
Dec 3, 3:12 AM PSTHigh Surf AdvisoryEKA19 hr
Dec 5, 2:32 PM PSTWinter Weather AdvisoryEKA16 hr
Dec 6, 4:26 AM PSTFrost AdvisoryEKA30 hr
Dec 6, 4:26 AM PSTFreeze WarningEKA30 hr
Dec 6, 3:01 PM PSTWinter Weather AdvisoryEKA42 hr
Dec 7, 10:49 PM PSTWind AdvisoryEKA12 hr
Dec 12, 5:35 PM PSTFlood WatchEKA70 hr
Dec 13, 3:13 PM PSTCoastal Flood AdvisoryEKA20 hr
Dec 13, 7:21 PM PSTWind AdvisoryEKA24 hr
Dec 14, 11:42 AM PSTCoastal Flood WarningEKA78 min
Dec 14, 1:43 PM PSTAreal Flood WarningEKA3 hr
Dec 14, 1:57 PM PSTAreal Flood AdvisoryEKA4 hr
Dec 14, 8:12 PM PSTAreal Flood AdvisoryEKA3 hr
Dec 14, 9:42 PM PSTAreal Flood WarningEKA6 hr
Dec 16, 1:58 AM PSTFreeze WatchEKA13 hr
Dec 16, 2:55 PM PSTFreeze WarningEKA10 hr
Dec 16, 2:55 PM PSTHard Freeze WarningEKA18 hr
Dec 18, 5:18 AM PSTBeach Hazards StatementEKA43 hr
Dec 20, 9:28 PM PSTHigh Surf AdvisoryEKA15 hr
Dec 21, 3:50 PM PSTWinter Storm WatchEKA13 hr
Dec 22, 4:33 AM PSTWinter Weather AdvisoryEKA53 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 archive20152017

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.