Alert archive / Nebraska / Perkins County

Weather alerts in Perkins County, Nebraska, 2008

152 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Perkins County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts: 152
Warnings: 48
Watches: 32
Advisories: 31
Busiest month: May38 alerts
Busiest day: May 9, 20088 alerts

Over time

By month

Warning verification

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

1 of 4 tornado warnings covering Perkins County in 2008 had a tornado report inside them; 1 of 2 tornado reports fell inside a warning, on average 7 minutes after it went out.

Perkins County, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	1	75%	2	50%	7 min
Severe thunderstorm warnings	24	15	38%	12	75%	18 min
Flash flood warnings	2	0	100%	0

Each office's whole area, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS North Platte, NE: tornado warnings	82	11	87%	19	63%	25 min
NWS North Platte, NE: severe thunderstorm warnings	492	170	65%	297	75%	22 min
NWS North Platte, NE: flash flood warnings	35	6	83%	11	73%	230 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 15, 3:47 PM MST	Wind Advisory	LBF	13 hr
Jan 28, 2:57 PM MST	Wind Advisory	LBF	20 hr
Feb 16, 2:03 PM MST	Wind Advisory	LBF	30 hr
Feb 25, 2:44 AM MST	Wind Advisory	LBF	14 hr
Mar 2, 2:12 AM MST	Wind Advisory	LBF	15 hr
Mar 15, 2:36 PM MDT	Winter Storm Watch	LBF	23 hr
Mar 16, 1:10 PM MDT	Winter Storm Warning	LBF	22 hr
Mar 24, 10:50 AM MDT	Red Flag Warning	LBF	6 hr
Mar 24, 5:10 PM MDT	Red Flag Warning	LBF	110 min
Mar 30, 1:40 PM MDT	Winter Weather Advisory	LBF	22 hr
Apr 4, 2:20 PM MDT	Fire Weather Watch	LBF	13 hr
Apr 5, 3:47 AM MDT	Red Flag Warning	LBF	15 hr
Apr 6, 10:49 AM MDT	Red Flag Warning	LBF	6 hr
Apr 8, 3:43 PM MDT	Winter Storm Watch	LBF	24 hr
Apr 9, 3:35 PM MDT	Winter Storm Warning	LBF	43 hr
Apr 10, 1:14 PM MDT	Mesoscale Discussion	SPC	4 hr
Apr 11, 2:25 AM MDT	Blowing Snow Advisory	LBF	9 hr
Apr 11, 10:07 AM MDT	Wind Advisory	LBF	7 hr
Apr 14, 2:34 AM MDT	Fire Weather Watch	LBF	11 hr
Apr 14, 1:58 PM MDT	Red Flag Warning	LBF	29 hr
Apr 19, 9:33 AM MDT	Red Flag Warning	LBF	9 hr
Apr 19, 9:40 PM MDT	Red Flag Warning	LBF	23 hr
Apr 23, 1:25 PM MDT	Tornado Watch	SPC	8 hr
Apr 23, 5:47 PM MDT	Severe Thunderstorm Warning	LBF	43 min
Apr 23, 6:06 PM MDT	Mesoscale Discussion	SPC	114 min
Apr 24, 4:33 PM MDT	Mesoscale Discussion	SPC	87 min
Apr 24, 5:02 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 24, 5:54 PM MDT	Severe Thunderstorm Warning	LBF	51 min
Apr 24, 7:55 PM MDT	Mesoscale Discussion	SPC	95 min
Apr 28, 4:15 PM MDT	Fire Weather Watch	LBF	10 hr
Apr 29, 2:15 AM MDT	Red Flag Warning	LBF	12 hr
May 1, 2:41 AM MDT	Wind Advisory	LBF	37 hr
May 1, 2:43 PM MDT	Snow and Blowing Snow Advisory	LBF	24 hr
May 2, 1:21 PM MDT	Winter Weather Advisory	LBF	9 hr
May 6, 12:58 PM MDT	Mesoscale Discussion	SPC	92 min
May 6, 1:50 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 6, 3:22 PM MDT	Severe Thunderstorm Warning	LBF	38 min
May 6, 3:59 PM MDT	Severe Thunderstorm Warning	LBF	46 min
May 9, 12:00 PM MDT	Mesoscale Discussion	SPC	3 hr
May 9, 12:43 PM MDT	Wind Advisory	LBF	31 hr
May 9, 1:18 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
May 9, 2:47 PM MDT	Mesoscale Discussion	SPC	118 min
May 9, 4:56 PM MDT	Tornado Warning	LBF	34 min
May 9, 5:02 PM MDT	Mesoscale Discussion	SPC	118 min
May 9, 5:30 PM MDT	Tornado Warning	LBF	30 min
May 9, 5:47 PM MDT	Severe Thunderstorm Warning	LBF	43 min
May 9, 10:03 PM MDT	Severe Thunderstorm Warning	LBF	42 min
May 9, 10:16 PM MDT	Mesoscale Discussion	SPC	2 hr
May 10, 2:52 AM MDT	Freeze Watch	LBF	12 hr
May 10, 3:03 PM MDT	Freeze Warning	LBF	17 hr
May 21, 2:49 AM MDT	Wind Advisory	LBF	12 hr
May 22, 2:53 AM MDT	Wind Advisory	LBF	12 hr
May 22, 11:48 AM MDT	Dense Fog Advisory	LBF	3 hr
May 22, 1:29 PM MDT	Mesoscale Discussion	SPC	61 min
May 22, 2:13 PM MDT	Tornado Watch	SPC	7 hr
May 22, 2:48 PM MDT	Severe Thunderstorm Warning	LBF	42 min
May 22, 4:03 PM MDT	Severe Thunderstorm Warning	LBF	42 min
May 22, 4:30 PM MDT	Tornado Warning	LBF	45 min
May 22, 5:46 PM MDT	Mesoscale Discussion	SPC	59 min
May 22, 7:16 PM MDT	Mesoscale Discussion	SPC	29 min
May 23, 2:55 AM MDT	Flash Flood Watch	LBF	24 hr
May 23, 8:53 AM MDT	Mesoscale Discussion	SPC	67 min
May 23, 3:15 PM MDT	Wind Advisory	LBF	10 hr
May 23, 6:07 PM MDT	Tornado Watch	SPC	5 hr
May 23, 6:16 PM MDT	Severe Thunderstorm Warning	LBF	29 min
May 23, 8:35 PM MDT	Areal Flood Warning	LBF	8 hr
May 23, 10:14 PM MDT	Mesoscale Discussion	SPC	61 min
May 24, 2:49 AM MDT	Dense Fog Advisory	LBF	4 hr
May 29, 12:33 PM MDT	Tornado Watch	SPC	7 hr
Jun 1, 6:45 PM MDT	Mesoscale Discussion	SPC	60 min
Jun 1, 8:07 PM MDT	Severe Thunderstorm Warning	LBF	38 min
Jun 1, 8:43 PM MDT	Severe Thunderstorm Warning	LBF	21 min
Jun 2, 12:09 PM MDT	Flash Flood Watch	LBF	14 hr
Jun 4, 3:17 AM MDT	Flash Flood Watch	LBF	49 hr
Jun 4, 12:42 PM MDT	Tornado Watch	SPC	7 hr
Jun 4, 2:26 PM MDT	Mesoscale Discussion	SPC	64 min
Jun 4, 4:38 PM MDT	Severe Thunderstorm Warning	LBF	52 min
Jun 4, 5:08 PM MDT	Mesoscale Discussion	SPC	67 min
Jun 4, 6:55 PM MDT	Mesoscale Discussion	SPC	65 min
Jun 5, 4:07 AM MDT	Mesoscale Discussion	SPC	2 hr
Jun 5, 4:33 AM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 5, 6:23 AM MDT	Mesoscale Discussion	SPC	67 min
Jun 5, 6:35 AM MDT	Severe Thunderstorm Warning	LBF	55 min
Jun 5, 7:14 AM MDT	Flash Flood Warning	LBF	4 hr
Jun 5, 10:08 AM MDT	Mesoscale Discussion	SPC	67 min
Jun 5, 4:08 PM MDT	Flash Flood Warning	LBF	3 hr
Jun 11, 3:03 AM MDT	Wind Advisory	LBF	7 hr
Jun 16, 3:50 AM MDT	Mesoscale Discussion	SPC	55 min
Jun 17, 3:50 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 17, 6:53 PM MDT	Mesoscale Discussion	SPC	67 min
Jun 17, 8:26 PM MDT	Mesoscale Discussion	SPC	64 min
Jun 17, 10:11 PM MDT	Severe Thunderstorm Warning	LBF	34 min
Jun 18, 1:19 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 18, 2:21 PM MDT	Severe Thunderstorm Warning	LBF	54 min
Jun 18, 5:29 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 19, 4:07 PM MDT	Mesoscale Discussion	SPC	53 min
Jun 23, 4:36 PM MDT	Mesoscale Discussion	SPC	54 min
Jun 23, 4:52 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 23, 6:50 PM MDT	Mesoscale Discussion	SPC	55 min
Jun 26, 4:50 PM MDT	Mesoscale Discussion	SPC	25 min
Jun 26, 5:04 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 26, 5:50 PM MDT	Severe Thunderstorm Warning	LBF	40 min
Jun 26, 6:26 PM MDT	Severe Thunderstorm Warning	LBF	49 min
Jun 26, 6:53 PM MDT	Severe Thunderstorm Warning	LBF	52 min
Jul 5, 2:13 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 6, 2:18 PM MDT	Flash Flood Watch	LBF	12 hr
Jul 6, 2:26 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 6, 7:18 PM MDT	Severe Thunderstorm Warning	LBF	42 min
Jul 6, 7:50 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 6, 8:29 PM MDT	Severe Thunderstorm Warning	LBF	36 min
Jul 12, 2:26 AM MDT	Mesoscale Discussion	SPC	64 min
Jul 14, 2:49 PM MDT	Mesoscale Discussion	SPC	116 min
Jul 14, 3:38 PM MDT	Tornado Warning	LBF	37 min
Jul 14, 3:57 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 14, 4:16 PM MDT	Severe Thunderstorm Warning	LBF	44 min
Jul 14, 6:03 PM MDT	Mesoscale Discussion	SPC	57 min
Jul 15, 2:53 PM MDT	Mesoscale Discussion	SPC	97 min
Jul 15, 6:23 PM MDT	Severe Thunderstorm Warning	LBF	37 min
Jul 23, 7:09 PM MDT	Mesoscale Discussion	SPC	96 min
Jul 24, 9:03 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 25, 1:36 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 25, 6:12 PM MDT	Mesoscale Discussion	SPC	63 min
Jul 31, 2:51 PM MDT	Fire Weather Watch	LBF	12 hr
Jul 31, 2:51 PM MDT	Fire Weather Watch	LBF	24 hr
Aug 1, 2:47 PM MDT	Red Flag Warning	LBF	29 hr
Aug 3, 5:40 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 3, 6:02 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 5, 2:24 AM MDT	Areal Flood Advisory	LBF	4 hr
Aug 11, 1:58 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 13, 5:38 PM MDT	Mesoscale Discussion	SPC	67 min
Aug 13, 6:57 PM MDT	Severe Thunderstorm Warning	LBF	63 min
Aug 13, 7:51 PM MDT	Severe Thunderstorm Warning	LBF	54 min
Sep 1, 3:36 PM MDT	Mesoscale Discussion	SPC	84 min
Oct 21, 2:03 AM MDT	Winter Storm Watch	LBF	34 hr
Oct 21, 2:21 PM MDT	High Wind Warning	LBF	28 hr
Oct 22, 2:46 AM MDT	Winter Storm Warning	LBF	31 hr
Nov 5, 3:04 PM MST	Wind Advisory	LBF	47 hr
Nov 6, 12:36 AM MST	High Wind Warning	LBF	19 hr
Nov 6, 2:33 PM MST	Wind Advisory	LBF	24 hr
Nov 10, 2:26 PM MST	Winter Weather Advisory	LBF	21 hr
Nov 13, 12:15 PM MST	Wind Advisory	LBF	29 hr
Nov 29, 2:18 PM MST	High Wind Watch	LBF	12 hr
Nov 30, 2:42 AM MST	High Wind Warning	LBF	14 hr
Dec 8, 7:47 PM MST	Wind Advisory	LBF	10 hr
Dec 13, 2:41 PM MST	Wind Advisory	LBF	15 hr
Dec 13, 2:46 PM MST	Winter Weather Advisory	LBF	24 hr
Dec 14, 2:48 PM MST	Wind Chill Advisory	LBF	20 hr
Dec 17, 2:49 PM MST	Winter Weather Advisory	LBF	34 hr
Dec 20, 3:11 PM MST	Wind Chill Warning	LBF	21 hr
Dec 20, 3:11 PM MST	Wind Chill Advisory	LBF	8 hr
Dec 21, 2:29 AM MST	Wind Chill Advisory	LBF	10 hr
Dec 29, 2:35 PM MST	Wind Advisory	LBF	26 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	24
Tornado Warning	4
Severe Thunderstorm Watch	13
Tornado Watch	5
Mesoscale Discussion	41
Flooding
Areal Flood Warning	1
Flash Flood Warning	2
Flash Flood Watch	4
Areal Flood Advisory	1
Winter
Winter Storm Warning	3
Winter Storm Watch	3
Blowing Snow Advisory	1
Snow and Blowing Snow Advisory	1
Winter Weather Advisory	5
Cold
Freeze Warning	1
Wind Chill Warning	1
Freeze Watch	1
Wind Chill Advisory	3
Wind and dust
High Wind Warning	3
High Wind Watch	1
Wind Advisory	18
Fire
Red Flag Warning	9
Fire Weather Watch	5
Fog and smoke
Dense Fog Advisory	2

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2007 2009

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.