Alert archive / California / Humboldt County

Weather alerts in Humboldt County, California, 2017

197 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Humboldt County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts: 197
Warnings: 30
Watches: 28
Advisories: 102
Busiest month: January54 alerts
Busiest day: January 9, 201711 alerts

Over time

By month

Warning verification

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

Humboldt County, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	2	1	50%	1	100%	14 min
Flash flood warnings	0			4	0%

Each office's whole area, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Eureka, CA: severe thunderstorm warnings	15	3	80%	4	75%	9 min
NWS Eureka, CA: flash flood warnings	0			19	0%

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.

Issued	Product	Office	Lasted
Jan 1, 11:07 AM PST	Winter Storm Warning	EKA	64 hr
Jan 1, 11:07 AM PST	Winter Weather Advisory	EKA	64 hr
Jan 4, 3:59 AM PST	Hard Freeze Warning	EKA	28 hr
Jan 5, 8:43 AM PST	Hard Freeze Watch	EKA	12 hr
Jan 5, 8:29 PM PST	Hard Freeze Warning	EKA	13 hr
Jan 6, 3:24 AM PST	Winter Storm Watch	EKA	9 hr
Jan 6, 3:24 AM PST	Winter Weather Advisory	EKA	33 hr
Jan 6, 12:36 PM PST	Winter Storm Warning	EKA	23 hr
Jan 6, 2:14 PM PST	Flood Watch	EKA	50 hr
Jan 6, 4:14 PM PST	River Flood Watch	EKA	45 hr
Jan 7, 9:32 AM PST	Wind Advisory	EKA	5 hr
Jan 7, 4:00 PM PST	Wind Advisory	EKA	24 hr
Jan 8, 2:26 AM PST	Coastal Flood Advisory	EKA	7 hr
Jan 8, 2:50 AM PST	Winter Weather Advisory	EKA	43 hr
Jan 8, 9:16 AM PST	River Flood Warning	EKA	4 days
Jan 8, 11:11 AM PST	Areal Flood Advisory	EKA	5 hr
Jan 8, 10:34 PM PST	Coastal Flood Advisory	EKA	11 hr
Jan 8, 10:50 PM PST	High Wind Watch	EKA	15 hr
Jan 9, 12:48 AM PST	Special Weather Statement	EKA	42 min
Jan 9, 3:28 AM PST	Flood Watch	EKA	40 hr
Jan 9, 4:15 AM PST	Coastal Flood Watch	EKA	24 hr
Jan 9, 4:15 AM PST	Coastal Flood Advisory	EKA	31 hr
Jan 9, 9:48 AM PST	River Flood Watch	EKA	6 hr
Jan 9, 1:30 PM PST	High Wind Warning	EKA	25 hr
Jan 9, 1:30 PM PST	Wind Advisory	EKA	30 hr
Jan 9, 3:09 PM PST	River Flood Warning	EKA	37 hr
Jan 9, 3:09 PM PST	River Flood Warning	EKA	40 hr
Jan 10, 3:50 AM PST	Coastal Flood Warning	EKA	7 hr
Jan 10, 12:10 PM PST	Areal Flood Advisory	EKA	3 hr
Jan 10, 12:22 PM PST	Areal Flood Advisory	EKA	3 hr
Jan 10, 12:39 PM PST	Coastal Flood Watch	EKA	6 hr
Jan 10, 12:39 PM PST	Coastal Flood Advisory	EKA	23 hr
Jan 10, 2:30 PM PST	River Flood Warning	EKA	27 hr
Jan 10, 6:57 PM PST	Coastal Flood Warning	EKA	17 hr
Jan 12, 5:38 AM PST	Coastal Flood Warning	EKA	7 hr
Jan 13, 5:07 AM PST	Coastal Flood Advisory	EKA	9 hr
Jan 14, 6:04 AM PST	Beach Hazards Statement	EKA	39 hr
Jan 17, 3:12 AM PST	Wind Advisory	EKA	37 hr
Jan 18, 11:03 AM PST	Wind Advisory	EKA	5 hr
Jan 18, 1:22 PM PST	Areal Flood Advisory	EKA	3 hr
Jan 19, 1:39 AM PST	Special Weather Statement	EKA	51 min
Jan 19, 2:02 AM PST	Special Weather Statement	EKA	43 min
Jan 19, 4:44 AM PST	Winter Weather Advisory	EKA	56 hr
Jan 19, 11:55 AM PST	High Surf Warning	EKA	52 hr
Jan 19, 2:39 PM PST	Wind Advisory	EKA	15 hr
Jan 20, 3:35 PM PST	High Wind Watch	EKA	11 hr
Jan 21, 3:34 AM PST	High Wind Warning	EKA	23 hr
Jan 21, 3:34 AM PST	Wind Advisory	EKA	22 hr
Jan 21, 2:32 PM PST	Winter Weather Advisory	EKA	55 hr
Jan 21, 3:56 PM PST	High Surf Advisory	EKA	6 hr
Jan 22, 2:40 AM PST	High Surf Advisory	EKA	49 hr
Jan 22, 12:11 PM PST	Winter Weather Advisory	EKA	33 hr
Jan 24, 2:57 PM PST	High Surf Advisory	EKA	49 hr
Jan 25, 10:35 PM PST	Beach Hazards Statement	EKA	41 hr
Feb 1, 2:58 PM PST	Wind Advisory	EKA	19 hr
Feb 2, 10:42 AM PST	Wind Advisory	EKA	23 hr
Feb 4, 2:12 PM PST	Wind Advisory	EKA	44 min
Feb 4, 3:02 PM PST	Wind Advisory	EKA	34 hr
Feb 5, 4:54 PM PST	Severe Thunderstorm Warning	EKA	36 min
Feb 5, 5:11 PM PST	Special Weather Statement	EKA	34 min
Feb 5, 5:38 PM PST	Special Weather Statement	EKA	37 min
Feb 5, 10:26 PM PST	Coastal Flood Advisory	EKA	11 hr
Feb 6, 9:38 AM PST	Wind Advisory	EKA	25 hr
Feb 6, 10:45 AM PST	Flood Watch	EKA	20 hr
Feb 6, 3:19 PM PST	High Wind Watch	EKA	23 hr
Feb 6, 3:20 PM PST	River Flood Watch	EKA	18 hr
Feb 6, 9:34 PM PST	Coastal Flood Advisory	EKA	12 hr
Feb 7, 9:13 AM PST	River Flood Warning	EKA	3 days
Feb 7, 9:47 AM PST	River Flood Watch	EKA	35 hr
Feb 7, 9:47 AM PST	River Flood Watch	EKA	47 hr
Feb 7, 2:09 PM PST	Flood Watch	EKA	50 hr
Feb 7, 2:10 PM PST	High Wind Warning	EKA	44 hr
Feb 7, 2:10 PM PST	Wind Advisory	EKA	44 hr
Feb 7, 2:11 PM PST	Coastal Flood Advisory	EKA	21 hr
Feb 8, 3:10 PM PST	River Flood Warning	EKA	54 hr
Feb 8, 3:34 PM PST	Coastal Flood Advisory	EKA	20 hr
Feb 9, 7:37 AM PST	Areal Flood Advisory	EKA	3 hr
Feb 9, 8:39 AM PST	River Flood Warning	EKA	12 hr
Feb 9, 9:04 AM PST	Areal Flood Advisory	EKA	3 hr
Feb 10, 3:22 AM PST	Coastal Flood Advisory	EKA	9 hr
Feb 14, 3:45 AM PST	High Wind Watch	EKA	23 hr
Feb 15, 2:52 AM PST	Wind Advisory	EKA	25 hr
Feb 15, 2:32 PM PST	Flood Watch	EKA	19 hr
Feb 15, 11:13 PM PST	Areal Flood Advisory	EKA	10 hr
Feb 17, 2:12 PM PST	Flood Watch	EKA	3 days
Feb 19, 4:06 PM PST	High Wind Watch	EKA	24 hr
Feb 19, 4:06 PM PST	Wind Advisory	EKA	3 hr
Feb 19, 7:19 PM PST	Wind Advisory	EKA	13 hr
Feb 20, 3:40 PM PST	High Wind Warning	EKA	10 hr
Feb 20, 3:40 PM PST	Wind Advisory	EKA	17 hr
Feb 22, 3:01 PM PST	Winter Weather Advisory	EKA	19 hr
Feb 23, 2:17 AM PST	Winter Storm Watch	EKA	24 hr
Feb 23, 3:06 PM PST	Winter Weather Advisory	EKA	43 hr
Feb 25, 1:34 AM PST	Beach Hazards Statement	EKA	35 hr
Feb 25, 1:48 AM PST	Winter Storm Watch	EKA	13 hr
Feb 25, 2:40 PM PST	Winter Weather Advisory	EKA	36 hr
Feb 27, 2:01 PM PST	Freeze Watch	EKA	279 days
Feb 28, 2:11 AM PST	Frost Advisory	EKA	30 hr
Mar 1, 1:44 AM PST	Frost Advisory	EKA	30 hr
Mar 2, 3:10 PM PST	Winter Storm Watch	EKA	25 hr
Mar 3, 4:17 PM PST	Winter Storm Warning	EKA	72 hr
Mar 5, 9:34 AM PST	Winter Weather Advisory	EKA	24 hr
Mar 5, 9:40 AM PST	Special Weather Statement	EKA	35 min
Mar 5, 9:56 AM PST	Special Weather Statement	EKA	34 min
Mar 5, 10:49 AM PST	Special Weather Statement	EKA	26 min
Mar 5, 10:55 AM PST	Special Weather Statement	EKA	35 min
Mar 5, 11:09 AM PST	Special Weather Statement	EKA	36 min
Mar 5, 11:23 AM PST	Special Weather Statement	EKA	37 min
Mar 5, 1:00 PM PST	Special Weather Statement	EKA	30 min
Mar 5, 8:52 PM PST	Special Weather Statement	EKA	23 min
Mar 5, 9:07 PM PST	Special Weather Statement	EKA	53 min
Mar 5, 10:48 PM PST	Special Weather Statement	EKA	27 min
Mar 5, 11:29 PM PST	Special Weather Statement	EKA	31 min
Mar 19, 3:01 PM PDT	Wind Advisory	EKA	29 hr
Mar 21, 2:04 AM PDT	Areal Flood Advisory	EKA	5 hr
Mar 21, 11:45 AM PDT	Mesoscale Discussion	SPC	3 hr
Mar 22, 2:26 PM PDT	Wind Advisory	EKA	39 hr
Apr 1, 9:23 PM PDT	Beach Hazards Statement	EKA	23 hr
Apr 5, 3:06 PM PDT	Wind Advisory	EKA	44 hr
Apr 6, 12:03 AM PDT	Wind Advisory	EKA	7 hr
Apr 6, 4:08 AM PDT	Winter Storm Watch	EKA	24 hr
Apr 6, 4:23 AM PDT	High Wind Warning	EKA	28 hr
Apr 6, 9:20 AM PDT	High Surf Advisory	EKA	30 hr
Apr 7, 12:13 AM PDT	Special Weather Statement	EKA	32 min
Apr 7, 12:42 AM PDT	Special Weather Statement	EKA	33 min
Apr 7, 1:04 AM PDT	Special Weather Statement	EKA	26 min
Apr 7, 1:42 AM PDT	Special Weather Statement	EKA	33 min
Apr 7, 2:45 AM PDT	Special Weather Statement	EKA	30 min
Apr 7, 4:13 AM PDT	Winter Weather Advisory	EKA	31 hr
Apr 8, 2:50 PM PDT	Frost Advisory	EKA	18 hr
Apr 8, 2:50 PM PDT	Freeze Warning	EKA	18 hr
Apr 11, 3:17 AM PDT	Wind Advisory	EKA	23 hr
Apr 12, 2:21 AM PDT	Wind Advisory	EKA	13 hr
Apr 12, 3:49 AM PDT	Winter Weather Advisory	EKA	36 hr
Apr 13, 3:21 PM PDT	Frost Advisory	EKA	16 hr
Apr 14, 7:11 PM PDT	Frost Advisory	EKA	13 hr
Apr 19, 4:55 PM PDT	Areal Flood Advisory	EKA	2 hr
May 6, 4:04 PM PDT	Wind Advisory	EKA	4 hr
May 7, 2:38 AM PDT	Wind Advisory	EKA	18 hr
Jun 16, 3:16 AM PDT	Heat Advisory	EKA	7 days
Jun 22, 8:28 PM PDT	Heat Advisory	EKA	47 hr
Jun 23, 3:40 PM PDT	Coastal Flood Advisory	EKA	10 hr
Jun 24, 2:35 PM PDT	Coastal Flood Advisory	EKA	12 hr
Jul 29, 12:32 PM PDT	Excessive Heat Watch	EKA	26 hr
Jul 30, 2:10 PM PDT	Excessive Heat Warning	EKA	4 days
Jul 30, 2:10 PM PDT	Heat Advisory	EKA	4 days
Aug 10, 4:48 PM PDT	Special Weather Statement	EKA	27 min
Aug 27, 6:49 AM PDT	Heat Advisory	EKA	13 hr
Aug 28, 3:17 AM PDT	Heat Advisory	EKA	17 hr
Aug 29, 3:33 AM PDT	Excessive Heat Watch	EKA	48 hr
Aug 30, 2:35 PM PDT	Excessive Heat Warning	EKA	4 days
Aug 31, 3:51 AM PDT	Heat Advisory	EKA	32 hr
Sep 2, 10:41 AM PDT	Heat Advisory	EKA	8 hr
Sep 3, 3:57 AM PDT	Heat Advisory	EKA	18 hr
Sep 5, 8:35 PM PDT	Special Weather Statement	EKA	25 min
Sep 6, 4:51 PM PDT	Severe Thunderstorm Warning	EKA	9 min
Sep 18, 7:03 PM PDT	Beach Hazards Statement	EKA	38 hr
Sep 20, 3:12 AM PDT	Frost Advisory	EKA	29 hr
Oct 1, 3:22 PM PDT	Frost Advisory	EKA	17 hr
Oct 4, 2:46 PM PDT	Frost Advisory	EKA	18 hr
Oct 7, 3:43 PM PDT	Beach Hazards Statement	EKA	27 hr
Oct 11, 3:35 PM PDT	Frost Advisory	EKA	18 hr
Oct 12, 2:54 PM PDT	Frost Advisory	EKA	19 hr
Oct 13, 12:55 PM PDT	Frost Advisory	EKA	20 hr
Oct 18, 6:16 AM PDT	High Surf Advisory	EKA	60 hr
Oct 18, 2:37 PM PDT	Wind Advisory	EKA	26 hr
Oct 20, 3:29 AM PDT	Special Weather Statement	EKA	46 min
Oct 20, 4:21 AM PDT	Special Weather Statement	EKA	39 min
Oct 22, 3:12 AM PDT	Beach Hazards Statement	EKA	41 hr
Oct 25, 7:41 PM PDT	Beach Hazards Statement	EKA	4 days
Nov 4, 4:50 PM PDT	Frost Advisory	EKA	18 hr
Nov 6, 1:45 AM PST	Frost Advisory	EKA	30 hr
Nov 7, 3:20 AM PST	Wind Advisory	EKA	48 hr
Nov 12, 5:46 PM PST	Wind Advisory	EKA	12 hr
Nov 14, 3:15 AM PST	Wind Advisory	EKA	43 hr
Nov 15, 7:40 AM PST	High Wind Warning	EKA	14 hr
Nov 16, 3:20 PM PST	Winter Storm Warning	EKA	90 min
Nov 16, 3:20 PM PST	Winter Weather Advisory	EKA	12 hr
Nov 17, 3:06 AM PST	Frost Advisory	EKA	30 hr
Nov 17, 3:06 AM PST	Freeze Warning	EKA	30 hr
Nov 18, 8:34 AM PST	Frost Advisory	EKA	25 hr
Nov 19, 2:22 PM PST	Flood Watch	EKA	29 hr
Nov 20, 4:44 AM PST	Areal Flood Advisory	EKA	3 hr
Nov 24, 3:09 PM PST	Wind Advisory	EKA	45 hr
Nov 27, 2:20 AM PST	Frost Advisory	EKA	25 hr
Nov 28, 2:33 PM PST	Frost Advisory	EKA	14 hr
Nov 28, 3:09 PM PST	High Surf Advisory	EKA	27 hr
Nov 29, 2:22 PM PST	Frost Advisory	EKA	19 hr
Nov 29, 7:35 PM PST	High Surf Advisory	EKA	5 hr
Dec 3, 2:32 AM PST	Frost Advisory	EKA	31 hr
Dec 3, 2:34 AM PST	Coastal Flood Advisory	EKA	11 hr
Dec 3, 1:54 PM PST	Freeze Warning	EKA	20 hr
Dec 4, 2:12 AM PST	Beach Hazards Statement	EKA	38 hr
Dec 4, 10:13 AM PST	Frost Advisory	EKA	23 hr
Dec 12, 11:08 AM PST	Beach Hazards Statement	EKA	59 hr
Dec 18, 2:35 PM PST	Winter Weather Advisory	EKA	46 hr
Dec 23, 10:08 AM PST	Beach Hazards Statement	EKA	31 hr

By product

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

Product	Alerts
Severe storms
Severe Thunderstorm Warning	2
Mesoscale Discussion	1
Special Weather Statement	25
Flooding
River Flood Warning	7
Flood Watch	7
River Flood Watch	5
Areal Flood Advisory	10
Winter
Winter Storm Warning	4
Winter Storm Watch	5
Winter Weather Advisory	14
Heat
Excessive Heat Warning	2
Excessive Heat Watch	2
Heat Advisory	8
Cold
Freeze Warning	3
Hard Freeze Warning	2
Freeze Watch	1
Hard Freeze Watch	1
Frost Advisory	20
Wind and dust
High Wind Warning	6
High Wind Watch	5
Wind Advisory	30
Coast and beach
Coastal Flood Warning	3
High Surf Warning	1
Coastal Flood Watch	2
Coastal Flood Advisory	13
High Surf Advisory	7
Beach Hazards Statement	11

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2016 2018

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.