Alert archive / Nebraska / Dakota County

Weather alerts in Dakota County, Nebraska, 2014

142 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Dakota County and its neighbors

Each county as a circle sized by its count in 2014. Tap one for its archive.

Alerts: 142
Warnings: 34
Watches: 27
Advisories: 42
Busiest month: June68 alerts
Busiest day: June 17, 20149 alerts

Over time

By month

Warning verification

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

2 of 3 tornado warnings covering Dakota County in 2014 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 14 minutes after it went out.

Dakota County, 2014

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	2	33%	1	100%	14 min
Severe thunderstorm warnings	18	12	33%	4	75%	14 min
Flash flood warnings	4	2	50%	0

Each office's whole area, 2014

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Sioux Falls, SD: tornado warnings	46	22	52%	52	85%	19 min
NWS Sioux Falls, SD: severe thunderstorm warnings	216	124	43%	250	85%	17 min
NWS Sioux Falls, SD: flash flood warnings	39	17	56%	24	92%	112 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 1, 3:09 PM CST	Wind Chill Advisory	FSD	21 hr
Jan 3, 3:04 PM CST	Wind Advisory	FSD	18 hr
Jan 3, 3:38 PM CST	Wind Chill Watch	FSD	12 hr
Jan 4, 3:34 AM CST	Wind Chill Warning	FSD	72 hr
Jan 4, 3:02 PM CST	Wind Chill Advisory	FSD	19 hr
Jan 6, 11:54 AM CST	Wind Chill Advisory	FSD	15 hr
Jan 13, 3:53 AM CST	Wind Advisory	FSD	37 hr
Jan 14, 3:16 PM CST	High Wind Watch	FSD	24 hr
Jan 15, 2:50 PM CST	High Wind Warning	FSD	30 hr
Jan 17, 2:58 PM CST	Wind Advisory	FSD	24 hr
Jan 19, 12:29 PM CST	Wind Advisory	FSD	6 hr
Jan 20, 3:37 AM CST	Wind Advisory	FSD	13 hr
Jan 20, 3:43 AM CST	Wind Chill Advisory	FSD	28 hr
Jan 21, 3:26 PM CST	Wind Chill Advisory	FSD	49 hr
Jan 24, 3:18 PM CST	High Wind Watch	FSD	23 hr
Jan 25, 2:42 PM CST	High Wind Warning	FSD	30 hr
Jan 26, 3:27 AM CST	Wind Chill Advisory	FSD	56 hr
Feb 4, 3:40 AM CST	Wind Chill Advisory	FSD	3 days
Feb 16, 2:39 PM CST	Winter Weather Advisory	FSD	18 hr
Feb 19, 4:37 AM CST	Winter Weather Advisory	FSD	43 hr
Feb 19, 3:16 PM CST	Wind Advisory	FSD	33 hr
Feb 20, 5:28 AM CST	Mesoscale Discussion	SPC	5 hr
Feb 25, 3:50 AM CST	Wind Chill Advisory	FSD	29 hr
Feb 26, 4:07 AM CST	Wind Chill Advisory	FSD	32 hr
Feb 28, 3:54 AM CST	Wind Chill Advisory	FSD	3 days
Feb 28, 3:35 PM CST	Winter Weather Advisory	FSD	28 hr
Mar 26, 3:55 AM CDT	Wind Advisory	FSD	18 hr
Mar 30, 3:52 PM CDT	Wind Advisory	FSD	39 hr
Apr 2, 3:42 PM CDT	Winter Weather Advisory	FSD	39 hr
Apr 13, 1:16 PM CDT	Mesoscale Discussion	SPC	6 hr
Apr 22, 3:53 PM CDT	Wind Advisory	FSD	28 hr
Apr 23, 6:16 PM CDT	Mesoscale Discussion	SPC	59 min
Apr 26, 12:14 PM CDT	Wind Advisory	FSD	8 hr
Apr 28, 12:54 PM CDT	Mesoscale Discussion	SPC	2 hr
May 7, 9:44 PM CDT	Mesoscale Discussion	SPC	91 min
May 8, 12:23 PM CDT	Mesoscale Discussion	SPC	2 hr
May 8, 1:46 PM CDT	Tornado Watch	SPC	7 hr
May 13, 2:16 PM CDT	Frost Advisory	FSD	18 hr
May 14, 3:55 PM CDT	Frost Advisory	FSD	16 hr
May 15, 3:08 PM CDT	Freeze Warning	FSD	17 hr
May 16, 3:05 PM CDT	Frost Advisory	FSD	17 hr
May 31, 1:18 PM CDT	Mesoscale Discussion	SPC	117 min
Jun 1, 1:28 PM CDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 1, 2:34 PM CDT	Mesoscale Discussion	SPC	86 min
Jun 1, 2:56 PM CDT	Severe Thunderstorm Warning	FSD	49 min
Jun 1, 3:29 PM CDT	Severe Thunderstorm Warning	FSD	31 min
Jun 1, 3:42 PM CDT	Mesoscale Discussion	SPC	63 min
Jun 3, 10:17 AM CDT	Flash Flood Watch	FSD	11 hr
Jun 3, 1:12 PM CDT	Tornado Watch	SPC	10 hr
Jun 5, 1:55 PM CDT	Mesoscale Discussion	SPC	95 min
Jun 5, 4:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jun 5, 4:55 PM CDT	Tornado Watch	SPC	4 hr
Jun 14, 1:57 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 14, 2:51 PM CDT	Flash Flood Watch	FSD	13 hr
Jun 14, 5:10 PM CDT	Tornado Watch	SPC	7 hr
Jun 14, 7:39 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 14, 8:20 PM CDT	Flash Flood Warning	FSD	5 hr
Jun 14, 9:39 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 14, 10:34 PM CDT	Severe Thunderstorm Warning	FSD	41 min
Jun 14, 11:00 PM CDT	Severe Thunderstorm Warning	FSD	45 min
Jun 14, 11:46 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 15, 12:35 AM CDT	Flash Flood Warning	FSD	115 min
Jun 15, 1:31 AM CDT	Areal Flood Warning	FSD	12 hr
Jun 16, 3:39 AM CDT	Flash Flood Watch	FSD	20 hr
Jun 16, 7:12 AM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 16, 10:07 AM CDT	Severe Thunderstorm Warning	FSD	38 min
Jun 16, 10:19 AM CDT	Mesoscale Discussion	SPC	116 min
Jun 16, 3:07 PM CDT	Tornado Watch PDS	SPC	7 hr
Jun 16, 4:58 PM CDT	Tornado Warning Tornado observed	FSD	32 min
Jun 16, 5:27 PM CDT	Tornado Warning	FSD	33 min
Jun 16, 5:47 PM CDT	Tornado Warning Tornado observed	FSD	43 min
Jun 16, 8:18 PM CDT	River Flood Warning	FSD	6 days
Jun 16, 9:06 PM CDT	Areal Flood Warning	FSD	12 hr
Jun 16, 9:11 PM CDT	Mesoscale Discussion	SPC	64 min
Jun 16, 9:34 PM CDT	Severe Thunderstorm Warning	FSD	41 min
Jun 16, 9:56 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 16, 10:15 PM CDT	Severe Thunderstorm Warning	FSD	45 min
Jun 16, 10:34 PM CDT	Severe Thunderstorm Warning	FSD	26 min
Jun 16, 11:11 PM CDT	Mesoscale Discussion	SPC	64 min
Jun 17, 6:48 PM CDT	Tornado Watch	SPC	6 hr
Jun 17, 10:18 PM CDT	Mesoscale Discussion	SPC	57 min
Jun 17, 11:01 PM CDT	Mesoscale Discussion	SPC	29 min
Jun 17, 11:24 PM CDT	Severe Thunderstorm Warning	FSD	51 min
Jun 17, 11:29 PM CDT	Flash Flood Warning	FSD	9 hr
Jun 17, 11:39 PM CDT	Tornado Watch	SPC	5 hr
Jun 18, 1:52 AM CDT	Mesoscale Discussion	SPC	83 min
Jun 18, 3:29 PM CDT	Mesoscale Discussion	SPC	91 min
Jun 18, 6:23 PM CDT	Tornado Watch	SPC	5 hr
Jun 19, 1:15 AM CDT	Mesoscale Discussion	SPC	90 min
Jun 19, 1:31 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jun 19, 3:15 AM CDT	Mesoscale Discussion	SPC	90 min
Jun 20, 2:20 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 20, 2:34 PM CDT	Severe Thunderstorm Warning	FSD	41 min
Jun 20, 5:40 PM CDT	Mesoscale Discussion	SPC	95 min
Jun 20, 8:29 PM CDT	Mesoscale Discussion	SPC	91 min
Jun 21, 8:34 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 22, 3:32 AM CDT	Flash Flood Watch	FSD	12 hr
Jun 26, 2:54 PM CDT	Mesoscale Discussion	SPC	3 hr
Jun 27, 3:12 PM CDT	Flash Flood Watch	FSD	13 hr
Jun 28, 5:15 PM CDT	Mesoscale Discussion	SPC	90 min
Jun 29, 2:02 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 30, 3:30 AM CDT	Flash Flood Watch	FSD	11 hr
Jun 30, 3:32 AM CDT	Mesoscale Discussion	SPC	58 min
Jun 30, 4:06 AM CDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 30, 5:08 AM CDT	Severe Thunderstorm Warning	FSD	37 min
Jun 30, 7:16 AM CDT	Mesoscale Discussion	SPC	89 min
Jun 30, 10:01 AM CDT	Severe Thunderstorm Warning	FSD	44 min
Jun 30, 10:32 AM CDT	Severe Thunderstorm Warning	FSD	43 min
Jun 30, 10:48 AM CDT	Mesoscale Discussion	SPC	87 min
Jun 30, 11:50 AM CDT	Severe Thunderstorm Warning	FSD	40 min
Jul 5, 1:54 AM CDT	Mesoscale Discussion	SPC	96 min
Jul 5, 3:20 AM CDT	Flash Flood Warning	FSD	3 hr
Jul 20, 3:41 PM CDT	Heat Advisory	FSD	29 hr
Jul 26, 9:44 AM CDT	Mesoscale Discussion	SPC	91 min
Jul 26, 10:15 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 26, 12:40 PM CDT	Mesoscale Discussion	SPC	65 min
Aug 20, 2:40 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 31, 2:20 PM CDT	Mesoscale Discussion	SPC	85 min
Aug 31, 3:31 PM CDT	Tornado Watch	SPC	5 hr
Aug 31, 4:52 PM CDT	Severe Thunderstorm Warning	FSD	38 min
Aug 31, 5:26 PM CDT	Severe Thunderstorm Warning	FSD	34 min
Aug 31, 5:52 PM CDT	Severe Thunderstorm Warning	FSD	38 min
Sep 8, 3:42 AM CDT	Mesoscale Discussion	SPC	3 hr
Sep 9, 4:13 AM CDT	Dense Fog Advisory	FSD	7 hr
Sep 12, 2:50 PM CDT	Frost Advisory	FSD	18 hr
Sep 19, 6:19 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 19, 10:34 PM CDT	Mesoscale Discussion	SPC	116 min
Sep 19, 11:01 PM CDT	Severe Thunderstorm Warning	FSD	29 min
Oct 2, 2:07 PM CDT	Wind Advisory	FSD	29 hr
Oct 3, 3:57 AM CDT	Freeze Warning	FSD	29 hr
Oct 10, 2:34 PM CDT	Freeze Warning	FSD	18 hr
Oct 23, 1:21 AM CDT	Dense Fog Advisory	FSD	9 hr
Nov 7, 3:48 AM CST	Wind Advisory	FSD	24 hr
Nov 10, 2:36 PM CST	Wind Advisory	FSD	13 hr
Nov 14, 3:53 AM CST	Winter Weather Advisory	FSD	44 hr
Nov 15, 3:24 PM CST	Winter Weather Advisory	FSD	30 hr
Nov 22, 4:56 AM CST	Dense Fog Advisory	FSD	6 hr
Dec 5, 7:55 AM CST	Dense Fog Advisory	FSD	5 hr
Dec 15, 6:20 PM CST	Wind Advisory	FSD	10 hr
Dec 26, 3:06 AM CST	Winter Weather Advisory	FSD	30 hr
Dec 29, 3:09 AM CST	Wind Chill Advisory	FSD	33 hr
Dec 30, 1:54 PM CST	Wind Chill Advisory	FSD	19 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	18
Tornado Warning	3
Severe Thunderstorm Watch	9
Tornado Watch	9
Mesoscale Discussion	39
Flooding
Areal Flood Warning	2
Flash Flood Warning	4
River Flood Warning	1
Flash Flood Watch	6
Winter
Winter Weather Advisory	7
Heat
Heat Advisory	1
Cold
Freeze Warning	3
Wind Chill Warning	1
Wind Chill Watch	1
Frost Advisory	4
Wind Chill Advisory	12
Wind and dust
High Wind Warning	2
High Wind Watch	2
Wind Advisory	14
Fog and smoke
Dense Fog Advisory	4

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2013 2015

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.