Weather alerts in Valley County, Montana, 2010

259 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: 259
Warnings: 80
Watches: 32
Advisories: 118
Busiest month: July43 alerts
Busiest day: July 29, 201014 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 6 tornado warnings covering Valley County in 2010 had a tornado report inside them; 1 of 4 tornado reports fell inside a warning, on average 0 minutes after it went out.

Valley County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	6	1	83%	4	25%	0 min
Severe thunderstorm warnings	50	32	36%	46	72%	32 min
Flash flood warnings	1	0	100%	2	0%

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Glasgow, MT: tornado warnings	25	5	80%	23	43%	14 min
NWS Glasgow, MT: severe thunderstorm warnings	181	104	43%	216	74%	26 min
NWS Glasgow, MT: flash flood warnings	2	0	100%	5	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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 3, 2:57 PM MST	Winter Storm Watch	GGW	23 hr
Jan 4, 3:33 AM MST	Winter Storm Warning	GGW	59 hr
Jan 4, 8:26 AM MST	Dense Fog Advisory	GGW	3 hr
Jan 6, 3:50 AM MST	Wind Chill Advisory	GGW	30 hr
Jan 7, 2:39 PM MST	Wind Chill Advisory	GGW	4 hr
Jan 7, 6:56 PM MST	Wind Chill Warning	GGW	16 hr
Jan 8, 2:27 PM MST	Wind Chill Advisory	GGW	6 hr
Jan 11, 2:37 AM MST	Dense Fog Advisory	GGW	7 hr
Jan 13, 8:42 PM MST	Dense Fog Advisory	GGW	14 hr
Jan 17, 4:59 AM MST	Dense Fog Advisory	GGW	7 hr
Jan 20, 3:36 AM MST	Dense Fog Advisory	GGW	7 hr
Jan 20, 1:54 PM MST	Winter Storm Watch	GGW	31 hr
Jan 20, 7:56 PM MST	Dense Fog Advisory	GGW	24 hr
Jan 21, 8:54 PM MST	Winter Storm Warning	GGW	60 hr
Jan 24, 8:27 AM MST	Blizzard Warning	GGW	30 hr
Jan 26, 2:54 PM MST	Wind Chill Advisory	GGW	21 hr
Jan 28, 5:51 AM MST	Wind Chill Advisory	GGW	6 hr
Feb 6, 2:27 PM MST	Wind Chill Advisory	GGW	45 hr
Feb 8, 2:22 PM MST	Wind Chill Advisory	GGW	22 hr
Feb 9, 6:38 PM MST	Wind Chill Advisory	GGW	9 hr
Feb 11, 5:16 PM MST	Dense Fog Advisory	GGW	16 hr
Feb 12, 3:26 AM MST	Winter Weather Advisory	GGW	35 hr
Feb 13, 2:30 PM MST	Wind Chill Advisory	GGW	18 hr
Feb 14, 6:27 PM MST	Wind Chill Advisory	GGW	17 hr
Feb 15, 3:32 AM MST	Dense Fog Advisory	GGW	7 hr
Feb 15, 7:20 PM MST	Wind Chill Advisory	GGW	8 hr
Feb 16, 2:44 PM MST	Winter Weather Advisory	GGW	31 hr
Feb 18, 3:58 AM MST	Dense Fog Advisory	GGW	10 hr
Feb 21, 7:50 PM MST	Dense Fog Advisory	GGW	14 hr
Feb 26, 3:11 AM MST	Dense Fog Advisory	GGW	7 hr
Mar 1, 4:57 AM MST	Dense Fog Advisory	GGW	5 hr
Mar 1, 2:34 PM MST	Dense Fog Advisory	GGW	22 hr
Mar 2, 2:33 PM MST	Dense Fog Advisory	GGW	20 hr
Mar 3, 9:36 PM MST	Dense Fog Advisory	GGW	13 hr
Mar 4, 5:48 PM MST	Dense Fog Advisory	GGW	17 hr
Mar 5, 11:50 PM MST	Dense Fog Advisory	GGW	14 hr
Mar 6, 6:01 PM MST	Dense Fog Advisory	GGW	58 hr
Mar 8, 9:32 AM MST	Freezing Rain Advisory	GGW	4 hr
Mar 11, 7:26 AM MST	Dense Fog Advisory	GGW	4 hr
Mar 29, 9:44 AM MDT	Red Flag Warning	GGW	10 hr
Apr 7, 2:07 PM MDT	Red Flag Warning	GGW	55 hr
Apr 8, 2:39 PM MDT	High Wind Warning	GGW	13 hr
Apr 9, 3:13 PM MDT	Fire Weather Watch	GGW	12 hr
Apr 10, 3:37 AM MDT	Red Flag Warning	GGW	16 hr
Apr 14, 2:59 AM MDT	Lake Wind Advisory	GGW	39 hr
Apr 16, 9:21 PM MDT	Fire Weather Watch	GGW	6 hr
Apr 17, 3:38 AM MDT	Red Flag Warning	GGW	15 hr
Apr 17, 3:49 AM MDT	Lake Wind Advisory	GGW	14 hr
Apr 20, 3:37 AM MDT	Lake Wind Advisory	GGW	17 hr
Apr 21, 3:38 AM MDT	Lake Wind Advisory	GGW	17 hr
Apr 22, 2:24 PM MDT	Lake Wind Advisory	GGW	30 hr
Apr 24, 2:26 PM MDT	Lake Wind Advisory	GGW	31 hr
Apr 26, 2:53 PM MDT	Lake Wind Advisory	GGW	4 days
Apr 27, 9:43 PM MDT	Fire Weather Watch	GGW	6 hr
Apr 27, 9:43 PM MDT	Red Flag Warning	GGW	19 hr
Apr 30, 9:37 AM MDT	High Wind Warning	GGW	11 hr
Apr 30, 9:19 PM MDT	Lake Wind Advisory	GGW	23 hr
May 1, 9:53 AM MDT	Winter Weather Advisory	GGW	18 hr
May 1, 3:39 PM MDT	High Wind Watch	GGW	26 hr
May 2, 1:05 PM MDT	Lake Wind Advisory	GGW	5 hr
May 2, 5:45 PM MDT	High Wind Warning	GGW	51 hr
May 4, 9:18 PM MDT	Lake Wind Advisory	GGW	6 hr
May 17, 3:29 AM MDT	Lake Wind Advisory	GGW	16 hr
May 18, 3:56 AM MDT	Lake Wind Advisory	GGW	24 hr
May 18, 6:19 PM MDT	Severe Thunderstorm Warning	GGW	56 min
May 19, 6:36 PM MDT	Special Weather Statement	GGW	54 min
May 19, 7:26 PM MDT	Special Weather Statement	GGW	34 min
May 20, 3:37 AM MDT	Lake Wind Advisory	GGW	17 hr
May 20, 1:21 PM MDT	Mesoscale Discussion	SPC	54 min
May 20, 3:15 PM MDT	Severe Thunderstorm Warning	GGW	31 min
May 20, 3:52 PM MDT	Special Weather Statement	GGW	53 min
May 22, 2:29 PM MDT	Lake Wind Advisory	GGW	27 hr
May 24, 3:47 AM MDT	Lake Wind Advisory	GGW	39 hr
May 24, 2:10 PM MDT	Flood Watch	GGW	22 hr
May 24, 3:06 PM MDT	High Wind Warning	GGW	21 hr
May 25, 3:37 AM MDT	Areal Flood Warning	GGW	34 hr
May 25, 6:10 AM MDT	Areal Flood Warning	GGW	6 hr
May 26, 4:05 AM MDT	Lake Wind Advisory	GGW	48 hr
May 26, 2:37 PM MDT	Flash Flood Watch	GGW	20 hr
May 27, 10:51 AM MDT	Flash Flood Watch	GGW	23 hr
May 27, 10:43 PM MDT	Severe Thunderstorm Warning	GGW	62 min
May 27, 11:17 PM MDT	Severe Thunderstorm Warning	GGW	58 min
May 28, 12:40 AM MDT	Severe Thunderstorm Warning	GGW	65 min
May 28, 10:04 AM MDT	Flash Flood Watch	GGW	18 hr
May 28, 9:44 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 28, 10:14 PM MDT	Special Weather Statement	GGW	61 min
May 28, 10:41 PM MDT	Severe Thunderstorm Warning	GGW	64 min
May 29, 3:52 AM MDT	Lake Wind Advisory	GGW	17 hr
May 30, 3:41 AM MDT	Lake Wind Advisory	GGW	15 hr
Jun 2, 2:13 PM MDT	Lake Wind Advisory	GGW	31 hr
Jun 4, 2:36 PM MDT	Lake Wind Advisory	GGW	30 hr
Jun 7, 2:14 PM MDT	Lake Wind Advisory	GGW	31 hr
Jun 8, 9:49 PM MDT	Lake Wind Advisory	GGW	24 hr
Jun 15, 2:45 PM MDT	High Wind Watch	GGW	37 hr
Jun 15, 2:48 PM MDT	Flash Flood Watch	GGW	48 hr
Jun 16, 5:34 PM MDT	Mesoscale Discussion	SPC	86 min
Jun 16, 6:20 PM MDT	Tornado Watch	SPC	8 hr
Jun 16, 8:50 PM MDT	Mesoscale Discussion	SPC	55 min
Jun 16, 8:58 PM MDT	Severe Thunderstorm Warning	GGW	62 min
Jun 16, 8:59 PM MDT	Areal Flood Warning	GGW	3 hr
Jun 16, 9:33 PM MDT	Severe Thunderstorm Warning	GGW	57 min
Jun 17, 3:45 AM MDT	High Wind Warning	GGW	30 hr
Jun 18, 4:54 PM MDT	Areal Flood Advisory	GGW	47 hr
Jun 20, 2:29 PM MDT	Flash Flood Watch	GGW	33 hr
Jun 21, 2:57 PM MDT	Severe Thunderstorm Warning	GGW	63 min
Jun 21, 3:27 PM MDT	Tornado Warning	GGW	29 min
Jun 21, 3:41 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Jun 21, 3:51 PM MDT	Severe Thunderstorm Warning	GGW	54 min
Jun 21, 3:55 PM MDT	Tornado Watch	SPC	5 hr
Jun 21, 4:16 PM MDT	Severe Thunderstorm Warning	GGW	39 min
Jun 21, 4:38 PM MDT	Severe Thunderstorm Warning	GGW	52 min
Jun 21, 5:26 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Jun 24, 4:11 PM MDT	Special Weather Statement	GGW	64 min
Jun 24, 4:20 PM MDT	Severe Thunderstorm Warning	GGW	25 min
Jun 24, 4:45 PM MDT	Severe Thunderstorm Warning	GGW	50 min
Jun 24, 5:25 PM MDT	Mesoscale Discussion	SPC	95 min
Jun 24, 6:07 PM MDT	Severe Thunderstorm Warning	GGW	23 min
Jun 24, 6:16 PM MDT	Severe Thunderstorm Warning	GGW	59 min
Jun 28, 2:40 PM MDT	Lake Wind Advisory	GGW	25 hr
Jun 29, 6:00 PM MDT	Mesoscale Discussion	SPC	90 min
Jun 29, 8:39 PM MDT	Severe Thunderstorm Warning	GGW	52 min
Jul 1, 1:37 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 1, 4:57 PM MDT	Mesoscale Discussion	SPC	63 min
Jul 1, 7:55 PM MDT	Severe Thunderstorm Warning	GGW	54 min
Jul 1, 8:28 PM MDT	Severe Thunderstorm Warning	GGW	62 min
Jul 1, 8:59 PM MDT	Mesoscale Discussion	SPC	91 min
Jul 1, 9:28 PM MDT	Severe Thunderstorm Warning	GGW	62 min
Jul 2, 12:43 AM MDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 3:46 AM MDT	Lake Wind Advisory	GGW	17 hr
Jul 2, 1:39 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 2, 5:02 PM MDT	Mesoscale Discussion	SPC	58 min
Jul 2, 10:15 PM MDT	Severe Thunderstorm Warning	GGW	22 min
Jul 3, 12:17 AM MDT	Severe Thunderstorm Warning	GGW	25 min
Jul 5, 3:53 AM MDT	Lake Wind Advisory	GGW	14 hr
Jul 10, 4:04 AM MDT	Lake Wind Advisory	GGW	17 hr
Jul 12, 1:03 PM MDT	Mesoscale Discussion	SPC	87 min
Jul 12, 2:06 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 12, 2:36 PM MDT	Lake Wind Advisory	GGW	30 hr
Jul 12, 5:31 PM MDT	Mesoscale Discussion	SPC	59 min
Jul 12, 5:40 PM MDT	Severe Thunderstorm Warning	GGW	58 min
Jul 12, 5:53 PM MDT	Severe Thunderstorm Warning	GGW	62 min
Jul 14, 2:55 AM MDT	Lake Wind Advisory	GGW	18 hr
Jul 16, 3:16 PM MDT	Lake Wind Advisory	GGW	23 hr
Jul 26, 9:30 AM MDT	Lake Wind Advisory	GGW	27 hr
Jul 26, 4:15 PM MDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 26, 5:30 PM MDT	Tornado Warning	GGW	60 min
Jul 28, 9:31 AM MDT	Lake Wind Advisory	GGW	8 hr
Jul 28, 4:34 PM MDT	Mesoscale Discussion	SPC	56 min
Jul 28, 6:15 PM MDT	Severe Thunderstorm Warning	GGW	60 min
Jul 28, 7:15 PM MDT	Severe Thunderstorm Warning	GGW	60 min
Jul 28, 7:28 PM MDT	Tornado Warning	GGW	32 min
Jul 28, 7:56 PM MDT	Tornado Warning	GGW	34 min
Jul 28, 8:27 PM MDT	Severe Thunderstorm Warning	GGW	63 min
Jul 28, 8:48 PM MDT	Flash Flood Warning	GGW	2 hr
Jul 28, 9:25 PM MDT	Severe Thunderstorm Warning	GGW	65 min
Jul 28, 9:42 PM MDT	Lake Wind Advisory	GGW	6 hr
Jul 29, 3:03 PM MDT	Mesoscale Discussion	SPC	57 min
Jul 29, 3:35 PM MDT	Severe Thunderstorm Warning	GGW	55 min
Jul 29, 3:38 PM MDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 29, 3:44 PM MDT	Severe Thunderstorm Warning	GGW	61 min
Jul 29, 3:51 PM MDT	Severe Thunderstorm Warning	GGW	54 min
Jul 29, 5:49 PM MDT	Mesoscale Discussion	SPC	86 min
Jul 29, 6:07 PM MDT	Special Weather Statement	GGW	53 min
Jul 29, 6:28 PM MDT	Severe Thunderstorm Warning	GGW	62 min
Jul 31, 7:27 PM MDT	Severe Thunderstorm Warning	GGW	63 min
Jul 31, 7:44 PM MDT	Special Weather Statement	GGW	31 min
Jul 31, 8:05 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 31, 8:22 PM MDT	Severe Thunderstorm Warning	GGW	68 min
Jul 31, 8:32 PM MDT	Severe Thunderstorm Warning	GGW	58 min
Aug 1, 12:49 AM MDT	Mesoscale Discussion	SPC	56 min
Aug 1, 2:26 PM MDT	Severe Thunderstorm Warning	GGW	50 min
Aug 1, 2:39 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 1, 4:35 PM MDT	Severe Thunderstorm Warning	GGW	55 min
Aug 1, 5:37 PM MDT	Mesoscale Discussion	SPC	113 min
Aug 1, 8:16 PM MDT	Severe Thunderstorm Warning	GGW	59 min
Aug 1, 8:43 PM MDT	Mesoscale Discussion	SPC	62 min
Aug 6, 3:03 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 6, 7:32 PM MDT	Severe Thunderstorm Warning	GGW	58 min
Aug 6, 8:29 PM MDT	Severe Thunderstorm Warning	GGW	61 min
Aug 6, 8:53 PM MDT	Tornado Warning	GGW	37 min
Aug 6, 9:16 PM MDT	Tornado Warning	GGW	59 min
Aug 6, 9:24 PM MDT	Severe Thunderstorm Warning	GGW	66 min
Aug 6, 10:35 PM MDT	Areal Flood Advisory	GGW	2 hr
Aug 9, 5:59 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 9, 8:02 PM MDT	Mesoscale Discussion	SPC	58 min
Aug 9, 10:43 PM MDT	Mesoscale Discussion	SPC	62 min
Aug 11, 2:59 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 11, 4:50 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 11, 5:23 PM MDT	Severe Thunderstorm Warning	GGW	67 min
Aug 11, 6:41 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Aug 11, 7:32 PM MDT	Mesoscale Discussion	SPC	58 min
Aug 11, 8:43 PM MDT	Severe Thunderstorm Warning	GGW	62 min
Aug 11, 9:30 PM MDT	Severe Thunderstorm Warning	GGW	60 min
Aug 11, 10:16 PM MDT	Severe Thunderstorm Warning	GGW	59 min
Aug 12, 2:56 PM MDT	Lake Wind Advisory	GGW	30 hr
Aug 14, 11:54 AM MDT	Lake Wind Advisory	GGW	8 hr
Aug 21, 3:53 AM MDT	Lake Wind Advisory	GGW	11 hr
Aug 21, 2:19 PM MDT	Severe Thunderstorm Warning	GGW	56 min
Aug 21, 5:53 PM MDT	Severe Thunderstorm Warning	GGW	67 min
Aug 22, 3:17 PM MDT	Lake Wind Advisory	GGW	29 hr
Aug 24, 2:54 PM MDT	Fire Weather Watch	GGW	24 hr
Aug 25, 2:56 PM MDT	Red Flag Warning	GGW	54 hr
Aug 26, 2:25 PM MDT	Lake Wind Advisory	GGW	31 hr
Sep 1, 3:02 PM MDT	Lake Wind Advisory	GGW	28 hr
Sep 6, 8:51 AM MDT	Lake Wind Advisory	GGW	9 hr
Sep 7, 2:28 PM MDT	Lake Wind Advisory	GGW	36 hr
Sep 9, 2:14 PM MDT	Lake Wind Advisory	GGW	30 hr
Sep 9, 4:10 PM MDT	Mesoscale Discussion	SPC	65 min
Sep 19, 1:45 PM MDT	Lake Wind Advisory	GGW	6 hr
Sep 20, 3:27 AM MDT	Lake Wind Advisory	GGW	17 hr
Sep 24, 3:03 AM MDT	Lake Wind Advisory	GGW	15 hr
Sep 28, 7:55 AM MDT	Lake Wind Advisory	GGW	11 hr
Oct 1, 2:23 PM MDT	Lake Wind Advisory	GGW	29 hr
Oct 4, 2:22 PM MDT	Lake Wind Advisory	GGW	29 hr
Oct 11, 3:36 AM MDT	Lake Wind Advisory	GGW	14 hr
Oct 12, 1:28 PM MDT	Lake Wind Advisory	GGW	6 hr
Oct 14, 2:35 PM MDT	Lake Wind Advisory	GGW	31 hr
Oct 24, 2:27 PM MDT	Lake Wind Advisory	GGW	3 days
Oct 25, 2:25 PM MDT	Winter Weather Advisory	GGW	41 hr
Oct 30, 3:32 AM MDT	Dense Fog Advisory	GGW	5 hr
Nov 1, 3:04 PM MDT	Lake Wind Advisory	GGW	27 hr
Nov 8, 6:29 PM MST	Lake Wind Advisory	GGW	4 hr
Nov 8, 9:02 PM MST	Winter Weather Advisory	GGW	11 hr
Nov 15, 3:07 AM MST	Winter Storm Watch	GGW	12 hr
Nov 15, 7:46 AM MST	Winter Weather Advisory	GGW	4 hr
Nov 15, 3:20 PM MST	Winter Storm Warning	GGW	30 hr
Nov 17, 3:37 AM MST	Lake Wind Advisory	GGW	48 hr
Nov 18, 8:18 AM MST	Winter Weather Advisory	GGW	6 hr
Nov 19, 3:57 AM MST	Winter Weather Advisory	GGW	48 hr
Nov 22, 2:57 PM MST	Winter Weather Advisory	GGW	61 hr
Nov 23, 4:13 AM MST	Winter Storm Warning	GGW	35 hr
Nov 24, 2:50 PM MST	Wind Chill Advisory	GGW	19 hr
Nov 27, 2:53 PM MST	Winter Weather Advisory	GGW	7 hr
Nov 27, 9:26 PM MST	Winter Weather Advisory	GGW	6 hr
Nov 29, 7:11 PM MST	Dense Fog Advisory	GGW	19 hr
Dec 2, 1:31 AM MST	Dense Fog Advisory	GGW	12 hr
Dec 2, 2:07 PM MST	Dense Fog Advisory	GGW	7 hr
Dec 5, 7:40 PM MST	Dense Fog Advisory	GGW	32 hr
Dec 9, 2:37 PM MST	Winter Weather Advisory	GGW	32 hr
Dec 10, 3:11 PM MST	Wind Chill Advisory	GGW	18 hr
Dec 11, 3:38 AM MST	Winter Storm Watch	GGW	25 hr
Dec 11, 2:53 PM MST	Wind Chill Advisory	GGW	19 hr
Dec 12, 4:48 AM MST	Winter Weather Advisory	GGW	18 hr
Dec 14, 4:19 AM MST	Freezing Rain Advisory	GGW	19 hr
Dec 17, 2:51 AM MST	Wind Chill Advisory	GGW	32 hr
Dec 18, 3:33 PM MST	Winter Storm Watch	GGW	30 hr
Dec 19, 2:42 PM MST	Wind Chill Advisory	GGW	13 hr
Dec 19, 2:42 PM MST	Winter Storm Warning	GGW	27 hr
Dec 21, 3:02 PM MST	Wind Chill Advisory	GGW	19 hr
Dec 21, 9:22 PM MST	Dense Fog Advisory	GGW	12 hr
Dec 22, 2:20 PM MST	Wind Chill Advisory	GGW	13 hr
Dec 24, 12:51 AM MST	Dense Fog Advisory	GGW	32 hr
Dec 27, 3:37 PM MST	Winter Storm Watch	GGW	23 hr
Dec 27, 3:37 PM MST	Winter Weather Advisory	GGW	3 hr
Dec 28, 2:53 PM MST	Wind Chill Watch	GGW	43 hr
Dec 28, 2:53 PM MST	Winter Storm Warning	GGW	24 hr
Dec 29, 2:23 PM MST	Blizzard Warning	GGW	13 hr
Dec 30, 3:38 AM MST	Winter Weather Advisory	GGW	13 hr
Dec 30, 10:03 AM MST	Wind Chill Advisory	GGW	49 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	50
Tornado Warning	6
Severe Thunderstorm Watch	11
Tornado Watch	2
Mesoscale Discussion	22
Special Weather Statement	7
Flooding
Areal Flood Warning	3
Flash Flood Warning	1
Flash Flood Watch	5
Flood Watch	1
Areal Flood Advisory	2
Winter
Blizzard Warning	2
Winter Storm Warning	6
Winter Storm Watch	6
Freezing Rain Advisory	2
Winter Weather Advisory	15
Cold
Wind Chill Warning	1
Wind Chill Watch	1
Wind Chill Advisory	19
Wind and dust
High Wind Warning	5
High Wind Watch	2
Lake Wind Advisory	54
Fire
Red Flag Warning	6
Fire Weather Watch	4
Fog and smoke
Dense Fog Advisory	26

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.