Alert archive / Montana / Garfield County

Weather alerts in Garfield County, Montana, 2013

216 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Garfield County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts: 216
Warnings: 66
Watches: 20
Advisories: 76
Busiest month: June48 alerts
Busiest day: June 25, 20139 alerts

Over time

By month

Warning verification

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

Garfield County, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	47	31	34%	31	81%	29 min
Flash flood warnings	1	1	0%	0

Each office's whole area, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Glasgow, MT: tornado warnings	8	4	50%	5	100%	12 min
NWS Glasgow, MT: severe thunderstorm warnings	147	84	43%	196	76%	27 min
NWS Glasgow, MT: flash flood warnings	21	3	86%	5	60%	36 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
Dec 31, 9:22 PM MST	Dense Fog Advisory	GGW	9 hr
Jan 9, 2:41 AM MST	Winter Storm Watch	GGW	25 hr
Jan 9, 2:45 PM MST	Winter Storm Warning	GGW	60 hr
Jan 11, 11:20 PM MST	Wind Chill Advisory	GGW	12 hr
Jan 26, 3:17 AM MST	Freezing Rain Advisory	GGW	31 hr
Jan 28, 2:37 PM MST	Wind Chill Advisory	GGW	37 hr
Jan 30, 4:08 AM MST	Wind Chill Advisory	GGW	37 hr
Jan 30, 4:08 AM MST	Winter Weather Advisory	GGW	30 hr
Mar 3, 4:02 AM MST	Winter Storm Warning	GGW	40 hr
Mar 3, 4:02 AM MST	Winter Weather Advisory	GGW	34 hr
Mar 15, 2:22 PM MDT	Winter Storm Watch	GGW	24 hr
Mar 16, 2:47 PM MDT	Winter Storm Warning	GGW	36 hr
Apr 7, 3:16 AM MDT	Winter Storm Watch	GGW	12 hr
Apr 7, 2:44 PM MDT	Winter Storm Warning	GGW	23 hr
Apr 13, 3:37 AM MDT	Winter Storm Warning	GGW	48 hr
Apr 27, 2:50 AM MDT	Lake Wind Advisory	GGW	19 hr
Apr 28, 2:42 PM MDT	High Wind Warning	GGW	32 hr
Apr 28, 2:42 PM MDT	Lake Wind Advisory	GGW	54 hr
Apr 29, 8:03 AM MDT	Red Flag Warning	GGW	13 hr
May 7, 8:34 PM MDT	Lake Wind Advisory	GGW	6 hr
May 9, 2:56 PM MDT	Lake Wind Advisory	GGW	30 hr
May 12, 2:08 PM MDT	Fire Weather Watch	GGW	25 hr
May 13, 1:35 PM MDT	Lake Wind Advisory	GGW	29 hr
May 13, 2:46 PM MDT	Red Flag Warning	GGW	28 hr
May 13, 6:18 PM MDT	Mesoscale Discussion	SPC	87 min
May 20, 2:52 AM MDT	Lake Wind Advisory	GGW	16 hr
May 21, 2:06 PM MDT	Lake Wind Advisory	GGW	67 hr
May 25, 5:33 PM MDT	Severe Thunderstorm Warning	GGW	42 min
May 25, 6:14 PM MDT	Severe Thunderstorm Warning	GGW	61 min
May 25, 6:34 PM MDT	Severe Thunderstorm Warning	GGW	56 min
May 25, 7:12 PM MDT	Severe Thunderstorm Warning	GGW	63 min
May 25, 7:26 PM MDT	Severe Thunderstorm Warning	GGW	64 min
May 25, 8:02 PM MDT	Severe Thunderstorm Warning	GGW	58 min
May 26, 2:44 PM MDT	Mesoscale Discussion	SPC	91 min
May 26, 3:47 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
May 26, 5:13 PM MDT	Severe Thunderstorm Warning	GGW	62 min
May 26, 6:08 PM MDT	Mesoscale Discussion	SPC	2 hr
May 26, 6:18 PM MDT	Severe Thunderstorm Warning	GGW	57 min
May 26, 7:17 PM MDT	Special Weather Statement	GGW	58 min
May 26, 8:09 PM MDT	Areal Flood Advisory	GGW	3 hr
May 26, 8:35 PM MDT	Severe Thunderstorm Warning	GGW	40 min
May 29, 3:24 AM MDT	Flood Watch	GGW	58 hr
May 30, 1:34 AM MDT	Areal Flood Warning	GGW	49 hr
May 31, 3:32 AM MDT	Lake Wind Advisory	GGW	17 hr
Jun 3, 7:46 AM MDT	Lake Wind Advisory	GGW	19 hr
Jun 3, 3:03 PM MDT	Areal Flood Warning	GGW	24 hr
Jun 3, 3:46 PM MDT	River Flood Warning	GGW	62 hr
Jun 3, 8:26 PM MDT	Areal Flood Warning	GGW	17 hr
Jun 4, 1:45 PM MDT	Areal Flood Warning	GGW	45 hr
Jun 6, 11:11 AM MDT	Areal Flood Advisory	GGW	48 hr
Jun 7, 2:52 PM MDT	Lake Wind Advisory	GGW	30 hr
Jun 7, 10:07 PM MDT	Special Weather Statement	GGW	53 min
Jun 7, 10:24 PM MDT	Areal Flood Warning	GGW	12 hr
Jun 11, 9:35 AM MDT	Lake Wind Advisory	GGW	13 hr
Jun 11, 12:05 PM MDT	Mesoscale Discussion	SPC	85 min
Jun 11, 1:07 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 11, 4:06 PM MDT	Mesoscale Discussion	SPC	84 min
Jun 11, 6:23 PM MDT	Mesoscale Discussion	SPC	97 min
Jun 11, 7:19 PM MDT	Areal Flood Warning	GGW	12 hr
Jun 11, 9:53 PM MDT	Areal Flood Advisory	GGW	8 hr
Jun 12, 8:47 AM MDT	Flash Flood Watch	GGW	13 hr
Jun 13, 3:04 AM MDT	Lake Wind Advisory	GGW	13 hr
Jun 13, 12:37 PM MDT	Mesoscale Discussion	SPC	53 min
Jun 13, 1:06 PM MDT	Severe Thunderstorm Watch	SPC	12 hr
Jun 13, 1:42 PM MDT	Flash Flood Watch	GGW	13 hr
Jun 13, 4:44 PM MDT	Mesoscale Discussion	SPC	61 min
Jun 13, 8:06 PM MDT	Mesoscale Discussion	SPC	54 min
Jun 13, 8:33 PM MDT	Severe Thunderstorm Warning	GGW	57 min
Jun 14, 12:31 AM MDT	Special Weather Statement	GGW	44 min
Jun 14, 2:45 AM MDT	Lake Wind Advisory	GGW	18 hr
Jun 15, 3:08 AM MDT	Lake Wind Advisory	GGW	17 hr
Jun 16, 10:40 AM MDT	Lake Wind Advisory	GGW	9 hr
Jun 18, 9:46 AM MDT	Lake Wind Advisory	GGW	41 hr
Jun 19, 8:25 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 19, 8:43 PM MDT	Severe Thunderstorm Warning	GGW	62 min
Jun 19, 9:40 PM MDT	Severe Thunderstorm Warning	GGW	65 min
Jun 19, 10:10 PM MDT	Severe Thunderstorm Warning	GGW	65 min
Jun 19, 10:44 PM MDT	Severe Thunderstorm Warning	GGW	61 min
Jun 19, 10:49 PM MDT	Mesoscale Discussion	SPC	86 min
Jun 19, 11:42 PM MDT	Severe Thunderstorm Warning	GGW	63 min
Jun 21, 4:34 PM MDT	Special Weather Statement	GGW	56 min
Jun 21, 5:15 PM MDT	Special Weather Statement	GGW	45 min
Jun 24, 6:39 PM MDT	Mesoscale Discussion	SPC	96 min
Jun 24, 7:01 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 24, 8:55 PM MDT	Severe Thunderstorm Warning	GGW	50 min
Jun 24, 9:40 PM MDT	Severe Thunderstorm Warning	GGW	50 min
Jun 24, 9:47 PM MDT	Mesoscale Discussion	SPC	58 min
Jun 24, 9:54 PM MDT	Severe Thunderstorm Warning	GGW	66 min
Jun 24, 10:36 PM MDT	Flash Flood Warning	GGW	3 hr
Jun 24, 10:56 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Jun 25, 1:06 AM MDT	Mesoscale Discussion	SPC	54 min
Jun 26, 3:01 AM MDT	Lake Wind Advisory	GGW	18 hr
Jul 3, 4:22 PM MDT	Lake Wind Advisory	GGW	4 hr
Jul 5, 3:56 AM MDT	Special Weather Statement	GGW	64 min
Jul 5, 4:25 AM MDT	Severe Thunderstorm Warning	GGW	65 min
Jul 5, 12:42 PM MDT	Severe Thunderstorm Warning	GGW	63 min
Jul 6, 12:58 AM MDT	Special Weather Statement	GGW	62 min
Jul 6, 12:01 PM MDT	Lake Wind Advisory	GGW	8 hr
Jul 7, 4:00 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 7, 6:31 PM MDT	Mesoscale Discussion	SPC	119 min
Jul 8, 1:17 PM MDT	Severe Thunderstorm Warning	GGW	58 min
Jul 8, 1:23 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 8, 2:10 PM MDT	Severe Thunderstorm Warning	GGW	65 min
Jul 8, 3:11 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Jul 8, 4:01 PM MDT	Severe Thunderstorm Warning	GGW	59 min
Jul 8, 4:58 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 8, 6:14 PM MDT	Special Weather Statement	GGW	61 min
Jul 12, 7:30 PM MDT	Special Weather Statement	GGW	45 min
Jul 13, 3:05 AM MDT	Lake Wind Advisory	GGW	18 hr
Jul 17, 2:47 PM MDT	Lake Wind Advisory	GGW	30 hr
Jul 20, 2:34 PM MDT	Lake Wind Advisory	GGW	30 hr
Jul 20, 4:44 PM MDT	Mesoscale Discussion	SPC	91 min
Jul 22, 5:14 PM MDT	Special Weather Statement	GGW	61 min
Jul 22, 5:32 PM MDT	Severe Thunderstorm Warning	GGW	43 min
Jul 22, 6:08 PM MDT	Severe Thunderstorm Warning	GGW	37 min
Jul 22, 6:39 PM MDT	Severe Thunderstorm Warning	GGW	66 min
Jul 22, 8:00 PM MDT	Severe Thunderstorm Warning	GGW	45 min
Jul 22, 8:44 PM MDT	Special Weather Statement	GGW	61 min
Jul 22, 10:10 PM MDT	Special Weather Statement	GGW	65 min
Jul 22, 10:37 PM MDT	Severe Thunderstorm Warning	GGW	53 min
Jul 24, 1:21 PM MDT	Mesoscale Discussion	SPC	84 min
Jul 24, 5:08 PM MDT	Mesoscale Discussion	SPC	97 min
Jul 24, 5:26 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 24, 6:23 PM MDT	Severe Thunderstorm Warning	GGW	52 min
Jul 24, 6:26 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Jul 24, 7:02 PM MDT	Severe Thunderstorm Warning	GGW	58 min
Jul 24, 7:31 PM MDT	Severe Thunderstorm Warning	GGW	59 min
Jul 24, 7:48 PM MDT	Mesoscale Discussion	SPC	87 min
Jul 24, 7:51 PM MDT	Severe Thunderstorm Warning	GGW	54 min
Jul 24, 8:44 PM MDT	Special Weather Statement	GGW	61 min
Jul 24, 11:31 PM MDT	Mesoscale Discussion	SPC	29 min
Jul 26, 2:28 PM MDT	Lake Wind Advisory	GGW	31 hr
Jul 28, 3:56 PM MDT	Mesoscale Discussion	SPC	3 hr
Jul 30, 3:37 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 3, 1:17 PM MDT	Mesoscale Discussion	SPC	118 min
Aug 3, 1:50 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 3, 4:01 PM MDT	Severe Thunderstorm Warning	GGW	59 min
Aug 3, 4:58 PM MDT	Severe Thunderstorm Warning	GGW	62 min
Aug 3, 5:11 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Aug 3, 5:34 PM MDT	Severe Thunderstorm Warning	GGW	41 min
Aug 3, 5:44 PM MDT	Mesoscale Discussion	SPC	61 min
Aug 3, 5:56 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Aug 3, 6:22 PM MDT	Special Weather Statement	GGW	53 min
Aug 3, 6:45 PM MDT	Areal Flood Warning	GGW	4 hr
Aug 5, 2:56 PM MDT	Special Weather Statement	GGW	64 min
Aug 12, 2:10 PM MDT	Mesoscale Discussion	SPC	3 hr
Aug 14, 10:50 AM MDT	Special Weather Statement	GGW	55 min
Aug 14, 11:00 AM MDT	Areal Flood Advisory	GGW	3 hr
Aug 21, 9:39 AM MDT	Lake Wind Advisory	GGW	5 hr
Aug 22, 8:43 AM MDT	Lake Wind Advisory	GGW	6 hr
Aug 28, 2:54 PM MDT	Mesoscale Discussion	SPC	96 min
Aug 28, 3:10 PM MDT	Special Weather Statement	GGW	65 min
Aug 28, 3:53 PM MDT	Special Weather Statement	GGW	67 min
Aug 28, 4:14 PM MDT	Severe Thunderstorm Warning	GGW	61 min
Aug 28, 4:23 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 28, 6:03 PM MDT	Severe Thunderstorm Warning	GGW	57 min
Aug 28, 6:26 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Aug 28, 7:22 PM MDT	Special Weather Statement	GGW	53 min
Aug 28, 7:29 PM MDT	Severe Thunderstorm Warning	GGW	61 min
Aug 28, 7:45 PM MDT	Special Weather Statement	GGW	60 min
Aug 28, 8:41 PM MDT	Severe Thunderstorm Warning	GGW	64 min
Aug 30, 2:16 PM MDT	Lake Wind Advisory	GGW	29 hr
Aug 30, 3:34 PM MDT	Severe Thunderstorm Warning	GGW	56 min
Aug 30, 3:47 PM MDT	Mesoscale Discussion	SPC	88 min
Aug 30, 4:36 PM MDT	Severe Thunderstorm Warning	GGW	39 min
Sep 5, 7:29 PM MDT	Special Weather Statement	GGW	61 min
Sep 6, 7:37 PM MDT	Special Weather Statement	GGW	53 min
Sep 6, 8:20 PM MDT	Special Weather Statement	GGW	55 min
Sep 7, 3:46 AM MDT	Lake Wind Advisory	GGW	16 hr
Sep 7, 9:07 AM MDT	Flash Flood Watch	GGW	37 hr
Sep 8, 1:40 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 8, 4:49 PM MDT	Mesoscale Discussion	SPC	116 min
Sep 8, 6:50 PM MDT	Mesoscale Discussion	SPC	115 min
Sep 8, 7:20 PM MDT	Special Weather Statement	GGW	55 min
Sep 8, 8:10 PM MDT	Special Weather Statement	GGW	65 min
Sep 13, 2:11 PM MDT	Lake Wind Advisory	GGW	30 hr
Sep 16, 2:59 AM MDT	Lake Wind Advisory	GGW	15 hr
Sep 18, 2:21 PM MDT	Lake Wind Advisory	GGW	28 hr
Sep 22, 12:53 PM MDT	Lake Wind Advisory	GGW	4 hr
Sep 22, 9:16 PM MDT	Lake Wind Advisory	GGW	23 hr
Sep 25, 2:45 PM MDT	Lake Wind Advisory	GGW	30 hr
Sep 28, 3:30 AM MDT	Lake Wind Advisory	GGW	16 hr
Sep 28, 2:50 PM MDT	Lake Wind Advisory	GGW	29 hr
Sep 29, 2:51 PM MDT	Lake Wind Advisory	GGW	51 hr
Oct 3, 3:09 AM MDT	Lake Wind Advisory	GGW	11 hr
Oct 7, 2:33 PM MDT	Lake Wind Advisory	GGW	24 hr
Oct 11, 3:30 AM MDT	Lake Wind Advisory	GGW	17 hr
Oct 14, 11:39 AM MDT	Lake Wind Advisory	GGW	7 hr
Oct 18, 3:13 AM MDT	Lake Wind Advisory	GGW	13 hr
Oct 19, 12:30 AM MDT	Lake Wind Advisory	GGW	30 hr
Oct 21, 3:07 AM MDT	Lake Wind Advisory	GGW	17 hr
Oct 25, 3:28 AM MDT	Lake Wind Advisory	GGW	17 hr
Oct 26, 2:30 PM MDT	Lake Wind Advisory	GGW	52 hr
Oct 27, 2:16 PM MDT	Winter Weather Advisory	GGW	37 hr
Oct 31, 2:55 AM MDT	Lake Wind Advisory	GGW	39 hr
Nov 2, 2:27 PM MDT	Lake Wind Advisory	GGW	52 hr
Nov 7, 2:35 PM MST	Lake Wind Advisory	GGW	29 hr
Nov 9, 2:47 PM MST	Winter Weather Advisory	GGW	42 hr
Nov 16, 2:56 PM MST	Lake Wind Advisory	GGW	18 hr
Nov 19, 1:59 PM MST	Winter Weather Advisory	GGW	28 hr
Nov 30, 2:01 AM MST	Freezing Rain Advisory	GGW	9 hr
Dec 1, 2:54 AM MST	Winter Storm Watch	GGW	24 hr
Dec 2, 3:06 AM MST	Winter Storm Warning	GGW	49 hr
Dec 3, 9:18 PM MST	Wind Chill Advisory	GGW	46 hr
Dec 4, 10:57 AM MST	Wind Chill Advisory	GGW	33 hr
Dec 6, 3:07 AM MST	Wind Chill Advisory	GGW	40 hr
Dec 7, 11:01 AM MST	Wind Chill Warning	GGW	23 hr
Dec 7, 11:01 AM MST	Wind Chill Advisory	GGW	48 hr
Dec 8, 2:15 PM MST	Winter Weather Advisory	GGW	30 hr
Dec 10, 7:48 PM MST	Wind Chill Advisory	GGW	16 hr
Dec 18, 3:37 AM MST	Winter Weather Advisory	GGW	34 hr
Dec 20, 2:25 PM MST	Winter Weather Advisory	GGW	30 hr
Dec 22, 2:30 PM MST	Winter Weather Advisory	GGW	36 hr
Dec 27, 3:01 PM MST	Wind Chill Advisory	GGW	36 hr
Dec 28, 9:42 AM MST	Winter Weather Advisory	GGW	5 hr
Dec 30, 3:20 AM MST	Winter Weather Advisory	GGW	55 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	47
Severe Thunderstorm Watch	11
Mesoscale Discussion	29
Special Weather Statement	25
Flooding
Areal Flood Warning	7
Flash Flood Warning	1
River Flood Warning	1
Flash Flood Watch	3
Flood Watch	1
Areal Flood Advisory	4
Winter
Winter Storm Warning	6
Winter Storm Watch	4
Freezing Rain Advisory	2
Winter Weather Advisory	11
Cold
Wind Chill Warning	1
Wind Chill Advisory	9
Wind and dust
High Wind Warning	1
Lake Wind Advisory	49
Fire
Red Flag Warning	2
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2012 2014

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.