Alert archive / Nebraska / Valley County

Weather alerts in Valley County, Nebraska, 2010

195 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Valley County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 195
Warnings: 35
Watches: 37
Advisories: 49
Busiest month: June74 alerts
Busiest day: June 10, 201012 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 2 tornado warnings covering Valley County in 2010 had a tornado report inside them.

Valley County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	23	12	48%	10	80%	20 min
Flash flood warnings	2	0	100%	0

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Hastings, NE: tornado warnings	26	5	81%	6	100%	12 min
NWS Hastings, NE: severe thunderstorm warnings	308	157	49%	328	86%	20 min
NWS Hastings, NE: flash flood warnings	20	8	60%	11	73%	78 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, 9:27 PM CST	Wind Chill Advisory	GID	13 hr
Jan 5, 3:42 AM CST	Winter Weather Advisory	GID	62 hr
Jan 6, 3:45 AM CST	Wind Chill Watch	GID	12 hr
Jan 6, 3:24 PM CST	Wind Chill Warning	GID	45 hr
Jan 8, 3:05 AM CST	Wind Chill Advisory	GID	32 hr
Jan 11, 7:57 PM CST	Freezing Fog Advisory	GID	14 hr
Jan 17, 5:16 PM CST	Dense Fog Advisory	GID	30 hr
Jan 18, 11:25 PM CST	Freezing Fog Advisory	GID	13 hr
Jan 19, 4:23 AM CST	Winter Weather Advisory	GID	28 hr
Jan 19, 7:28 PM CST	Mesoscale Discussion	SPC	5 hr
Jan 20, 10:25 AM CST	Dense Fog Advisory	GID	24 hr
Jan 21, 7:24 AM CST	Freezing Fog Advisory	GID	3 hr
Jan 21, 5:53 PM CST	Freezing Fog Advisory	GID	19 hr
Jan 22, 9:41 AM CST	Dense Fog Advisory	GID	12 hr
Jan 24, 4:04 AM CST	Wind Advisory	GID	14 hr
Jan 24, 9:48 PM CST	Wind Advisory	GID	20 hr
Feb 3, 3:50 PM CST	Winter Weather Advisory	GID	44 hr
Feb 14, 4:07 AM CST	Wind Advisory	GID	14 hr
Feb 28, 12:29 AM CST	Freezing Fog Advisory	GID	9 hr
Mar 7, 3:30 PM CST	Flood Watch	GID	61 hr
Mar 8, 8:47 AM CST	Dense Fog Advisory	GID	3 hr
Mar 30, 3:43 AM CDT	Red Flag Warning	GID	16 hr
Mar 31, 3:32 PM CDT	Fire Weather Watch	GID	12 hr
Apr 1, 3:32 AM CDT	Red Flag Warning	GID	16 hr
Apr 1, 11:14 PM CDT	Special Weather Statement	GID	46 min
Apr 7, 4:01 AM CDT	Wind Advisory	GID	14 hr
Apr 12, 2:50 PM CDT	Wind Advisory	GID	33 hr
Apr 23, 11:43 AM CDT	Mesoscale Discussion	SPC	62 min
Apr 23, 1:18 PM CDT	Tornado Watch	SPC	7 hr
Apr 23, 4:10 PM CDT	Mesoscale Discussion	SPC	95 min
Apr 23, 7:02 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 23, 9:22 PM CDT	Mesoscale Discussion	SPC	53 min
Apr 26, 11:15 AM CDT	Wind Advisory	GID	9 hr
Apr 28, 10:30 AM CDT	Wind Advisory	GID	9 hr
May 6, 3:26 PM CDT	Freeze Watch	GID	24 hr
May 7, 4:13 AM CDT	Wind Advisory	GID	15 hr
May 7, 3:16 PM CDT	Freeze Warning	GID	17 hr
May 10, 2:32 AM CDT	Mesoscale Discussion	SPC	88 min
May 18, 5:14 AM CDT	Dense Fog Advisory	GID	4 hr
May 22, 3:57 AM CDT	Wind Advisory	GID	17 hr
May 23, 3:36 PM CDT	Wind Advisory	GID	29 hr
May 23, 7:50 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
May 24, 1:58 PM CDT	Severe Thunderstorm Warning	GID	26 min
May 24, 6:03 PM CDT	Mesoscale Discussion	SPC	87 min
May 24, 7:17 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 24, 9:11 PM CDT	Mesoscale Discussion	SPC	64 min
May 24, 10:06 PM CDT	Severe Thunderstorm Warning	GID	21 min
Jun 1, 5:53 AM CDT	Mesoscale Discussion	SPC	97 min
Jun 1, 8:46 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 1, 12:37 PM CDT	Mesoscale Discussion	SPC	53 min
Jun 1, 1:53 PM CDT	Tornado Watch	SPC	9 hr
Jun 1, 5:39 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 1, 7:04 PM CDT	Special Weather Statement	GID	41 min
Jun 3, 5:37 PM CDT	Severe Thunderstorm Warning	GID	38 min
Jun 3, 5:57 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 3, 6:15 PM CDT	Severe Thunderstorm Warning	GID	30 min
Jun 3, 6:28 PM CDT	Tornado Warning	GID	32 min
Jun 3, 6:37 PM CDT	Tornado Warning	GID	23 min
Jun 3, 7:50 PM CDT	Severe Thunderstorm Warning	GID	40 min
Jun 3, 9:15 PM CDT	Mesoscale Discussion	SPC	60 min
Jun 5, 12:04 AM CDT	Severe Thunderstorm Warning	GID	26 min
Jun 5, 12:26 AM CDT	Severe Thunderstorm Warning	GID	49 min
Jun 5, 12:31 AM CDT	Mesoscale Discussion	SPC	29 min
Jun 5, 12:45 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 5, 2:29 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 5, 2:32 AM CDT	Severe Thunderstorm Warning	GID	43 min
Jun 6, 9:03 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 7, 7:23 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 7, 9:42 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 7, 10:31 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 7, 11:37 PM CDT	Mesoscale Discussion	SPC	113 min
Jun 8, 12:03 AM CDT	Severe Thunderstorm Warning	GID	42 min
Jun 8, 12:42 AM CDT	Severe Thunderstorm Warning	GID	48 min
Jun 8, 1:21 AM CDT	Severe Thunderstorm Warning	GID	39 min
Jun 8, 2:07 AM CDT	Flash Flood Warning	GID	4 hr
Jun 10, 1:41 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 10, 2:36 AM CDT	Special Weather Statement	GID	24 min
Jun 10, 3:03 AM CDT	Special Weather Statement	GID	27 min
Jun 10, 3:16 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 10, 3:32 AM CDT	Special Weather Statement	GID	28 min
Jun 10, 3:49 AM CDT	Severe Thunderstorm Warning	GID	41 min
Jun 10, 3:56 AM CDT	Areal Flood Advisory	GID	6 hr
Jun 10, 5:36 AM CDT	Mesoscale Discussion	SPC	114 min
Jun 10, 6:10 AM CDT	Special Weather Statement	GID	35 min
Jun 10, 6:24 AM CDT	Severe Thunderstorm Warning	GID	51 min
Jun 10, 9:29 AM CDT	Areal Flood Advisory	GID	6 hr
Jun 10, 4:08 PM CDT	Flash Flood Watch	GID	13 hr
Jun 10, 7:01 PM CDT	Tornado Watch	SPC	5 hr
Jun 10, 10:37 PM CDT	Mesoscale Discussion	SPC	53 min
Jun 10, 11:47 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 10, 11:51 PM CDT	Severe Thunderstorm Warning	GID	54 min
Jun 11, 1:45 AM CDT	Mesoscale Discussion	SPC	60 min
Jun 11, 4:10 AM CDT	Flood Watch	GID	26 hr
Jun 11, 10:34 PM CDT	Mesoscale Discussion	SPC	86 min
Jun 12, 1:00 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 12, 3:16 AM CDT	Mesoscale Discussion	SPC	59 min
Jun 12, 3:45 AM CDT	Areal Flood Warning	GID	6 hr
Jun 12, 4:48 AM CDT	Flood Watch	GID	47 hr
Jun 12, 9:30 AM CDT	Areal Flood Warning	GID	24 hr
Jun 12, 3:31 PM CDT	Flash Flood Warning	GID	6 hr
Jun 13, 9:22 AM CDT	Areal Flood Warning	GID	4 hr
Jun 18, 3:19 AM CDT	Mesoscale Discussion	SPC	86 min
Jun 19, 10:08 PM CDT	Mesoscale Discussion	SPC	67 min
Jun 20, 4:26 AM CDT	Mesoscale Discussion	SPC	94 min
Jun 20, 4:46 AM CDT	Mesoscale Discussion	SPC	89 min
Jun 20, 10:27 AM CDT	Flash Flood Watch	GID	21 hr
Jun 20, 7:40 PM CDT	Severe Thunderstorm Warning	GID	50 min
Jun 20, 8:07 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 20, 8:46 PM CDT	Special Weather Statement	GID	44 min
Jun 20, 10:18 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 20, 11:43 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 21, 10:32 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 22, 3:28 PM CDT	Flash Flood Watch	GID	12 hr
Jun 22, 3:37 PM CDT	Mesoscale Discussion	SPC	23 min
Jun 22, 6:30 PM CDT	Tornado Watch	SPC	6 hr
Jun 22, 7:08 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 9:13 PM CDT	Special Weather Statement	GID	47 min
Jun 23, 1:05 AM CDT	Mesoscale Discussion	SPC	85 min
Jun 25, 5:32 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 26, 3:58 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 4:50 PM CDT	Tornado Watch	SPC	7 hr
Jul 2, 3:53 AM CDT	Wind Advisory	GID	15 hr
Jul 6, 9:20 PM CDT	Mesoscale Discussion	SPC	25 min
Jul 10, 1:55 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 10, 5:17 PM CDT	Mesoscale Discussion	SPC	58 min
Jul 10, 7:21 PM CDT	Special Weather Statement	GID	39 min
Jul 10, 7:51 PM CDT	Special Weather Statement	GID	39 min
Jul 10, 8:11 PM CDT	Severe Thunderstorm Warning	GID	28 min
Jul 10, 9:16 PM CDT	Mesoscale Discussion	SPC	59 min
Jul 11, 6:13 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 11, 7:38 PM CDT	Mesoscale Discussion	SPC	67 min
Jul 16, 3:49 PM CDT	Heat Advisory	GID	27 hr
Jul 17, 5:56 PM CDT	Mesoscale Discussion	SPC	64 min
Jul 17, 6:13 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 17, 9:31 PM CDT	Severe Thunderstorm Warning	GID	44 min
Jul 17, 10:25 PM CDT	Mesoscale Discussion	SPC	95 min
Jul 18, 8:08 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 18, 11:52 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 19, 5:42 PM CDT	Mesoscale Discussion	SPC	63 min
Jul 19, 11:23 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 19, 11:30 PM CDT	Special Weather Statement	GID	30 min
Jul 19, 11:39 PM CDT	Severe Thunderstorm Warning	GID	36 min
Jul 19, 11:59 PM CDT	Severe Thunderstorm Warning	GID	46 min
Jul 21, 7:22 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 22, 2:06 PM CDT	Mesoscale Discussion	SPC	114 min
Jul 22, 10:19 PM CDT	Mesoscale Discussion	SPC	86 min
Aug 7, 4:14 AM CDT	Heat Advisory	GID	64 hr
Aug 8, 5:47 PM CDT	Mesoscale Discussion	SPC	58 min
Aug 8, 7:05 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 9, 9:46 PM CDT	Mesoscale Discussion	SPC	89 min
Aug 12, 2:05 PM CDT	Mesoscale Discussion	SPC	115 min
Aug 16, 2:50 PM CDT	Mesoscale Discussion	SPC	85 min
Aug 16, 5:32 PM CDT	Mesoscale Discussion	SPC	28 min
Aug 19, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 19, 8:11 PM CDT	Mesoscale Discussion	SPC	64 min
Aug 30, 2:45 PM CDT	Mesoscale Discussion	SPC	30 min
Aug 30, 3:23 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 30, 4:32 PM CDT	Special Weather Statement	GID	43 min
Aug 30, 5:00 PM CDT	Severe Thunderstorm Warning	GID	45 min
Sep 2, 3:15 AM CDT	Mesoscale Discussion	SPC	90 min
Sep 6, 4:04 AM CDT	Wind Advisory	GID	14 hr
Sep 13, 2:38 PM CDT	Tornado Watch	SPC	7 hr
Sep 17, 11:11 PM CDT	Severe Thunderstorm Warning	GID	49 min
Sep 17, 11:12 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 17, 11:59 PM CDT	Severe Thunderstorm Warning	GID	46 min
Sep 18, 12:22 AM CDT	Areal Flood Advisory	GID	5 hr
Sep 18, 1:00 AM CDT	Mesoscale Discussion	SPC	60 min
Sep 20, 1:30 AM CDT	Dense Fog Advisory	GID	7 hr
Sep 20, 2:10 AM CDT	Wind Advisory	GID	17 hr
Sep 20, 8:34 PM CDT	Mesoscale Discussion	SPC	86 min
Sep 22, 3:24 PM CDT	Mesoscale Discussion	SPC	96 min
Sep 22, 4:00 PM CDT	Tornado Watch	SPC	7 hr
Sep 22, 7:25 PM CDT	Special Weather Statement	GID	35 min
Sep 22, 7:41 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 2, 3:50 AM CDT	Frost Advisory	GID	29 hr
Oct 23, 10:29 PM CDT	Special Weather Statement	GID	46 min
Oct 23, 10:38 PM CDT	Severe Thunderstorm Warning	GID	52 min
Oct 23, 11:30 PM CDT	Special Weather Statement	GID	30 min
Oct 24, 12:11 AM CDT	Special Weather Statement	GID	49 min
Oct 25, 11:17 AM CDT	Wind Advisory	GID	10 hr
Oct 25, 3:00 PM CDT	Wind Advisory	GID	28 hr
Oct 26, 3:38 AM CDT	Wind Advisory	GID	39 hr
Nov 20, 8:45 PM CST	Winter Weather Advisory	GID	14 hr
Nov 22, 1:21 AM CST	Freezing Rain Advisory	GID	8 hr
Nov 23, 3:31 PM CST	Freezing Rain Advisory	GID	12 hr
Nov 29, 3:46 AM CST	Wind Advisory	GID	26 hr
Dec 10, 3:39 PM CST	Wind Advisory	GID	32 hr
Dec 11, 3:18 PM CST	Wind Chill Advisory	GID	19 hr
Dec 15, 3:23 PM CST	Winter Weather Advisory	GID	8 hr
Dec 19, 9:06 PM CST	Dense Fog Advisory	GID	9 hr
Dec 23, 5:10 PM CST	Winter Weather Advisory	GID	13 hr
Dec 29, 1:12 PM CST	Winter Weather Advisory	GID	47 hr
Dec 30, 12:29 PM CST	Winter Storm Warning	GID	23 hr
Dec 30, 8:48 PM CST	Mesoscale Discussion	SPC	4 hr
Dec 31, 11:45 AM CST	Wind Chill Advisory	GID	24 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	23
Tornado Warning	2
Severe Thunderstorm Watch	21
Tornado Watch	7
Mesoscale Discussion	58
Special Weather Statement	16
Flooding
Areal Flood Warning	3
Flash Flood Warning	2
Flash Flood Watch	3
Flood Watch	3
Areal Flood Advisory	3
Winter
Winter Storm Warning	1
Freezing Rain Advisory	2
Winter Weather Advisory	7
Heat
Heat Advisory	2
Cold
Freeze Warning	1
Wind Chill Warning	1
Freeze Watch	1
Wind Chill Watch	1
Frost Advisory	1
Wind Chill Advisory	4
Wind and dust
Wind Advisory	18
Fire
Red Flag Warning	2
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	7
Freezing Fog Advisory	5

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2009 2011

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.