Weather alerts in Carter County, Montana, 2014

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

Carter County and its neighbors

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

Alerts: 147
Warnings: 39
Watches: 18
Advisories: 26
Busiest month: June57 alerts
Busiest day: June 17, 201411 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 2 tornado warnings covering Carter County in 2014 had a tornado report inside them; 3 of 3 tornado reports fell inside a warning, on average 10 minutes after it went out.

Carter County, 2014

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	2	0%	3	100%	10 min
Severe thunderstorm warnings	31	14	55%	16	75%	22 min
Flash flood warnings	0			0

Each office's whole area, 2014

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Billings, MT: tornado warnings	6	2	67%	6	50%	10 min
NWS Billings, MT: severe thunderstorm warnings	120	56	53%	151	77%	25 min
NWS Billings, MT: flash flood warnings	4	2	50%	6	33%	106 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 2, 3:31 PM MST	Winter Weather Advisory	BYZ	60 hr
Jan 4, 3:55 AM MST	Wind Chill Advisory	BYZ	11 hr
Jan 4, 3:19 PM MST	Wind Chill Warning	BYZ	37 hr
Jan 6, 4:01 AM MST	Wind Chill Advisory	BYZ	7 hr
Jan 11, 3:48 AM MST	High Wind Warning	BYZ	67 hr
Jan 25, 3:49 PM MST	Winter Weather Advisory	BYZ	24 hr
Jan 26, 4:00 AM MST	Wind Chill Advisory	BYZ	29 hr
Jan 29, 3:55 AM MST	Winter Weather Advisory	BYZ	35 hr
Feb 3, 2:33 PM MST	Wind Chill Advisory	BYZ	69 hr
Feb 10, 3:48 AM MST	Winter Weather Advisory	BYZ	39 hr
Feb 11, 3:37 PM MST	Special Weather Statement	BYZ	68 min
Feb 21, 2:26 PM MST	Winter Storm Watch	BYZ	24 hr
Feb 22, 2:50 PM MST	Winter Weather Advisory	BYZ	47 hr
Feb 25, 1:03 PM MST	Winter Storm Watch	BYZ	51 hr
Feb 27, 3:38 PM MST	Winter Weather Advisory	BYZ	50 hr
Feb 27, 9:18 PM MST	Wind Chill Advisory	BYZ	63 hr
Mar 4, 2:33 AM MST	Special Weather Statement	BYZ	117 min
Mar 9, 3:27 PM MDT	Winter Weather Advisory	BYZ	42 hr
Mar 10, 1:00 PM MDT	Areal Flood Warning	BYZ	5 days
Mar 16, 3:57 AM MDT	Winter Weather Advisory	BYZ	48 hr
Mar 28, 2:10 PM MDT	Winter Storm Watch	BYZ	38 hr
Mar 29, 3:31 AM MDT	Winter Storm Warning	BYZ	56 hr
Mar 30, 10:18 AM MDT	Blizzard Warning	BYZ	25 hr
Mar 30, 8:13 PM MDT	Mesoscale Discussion	SPC	3 hr
Apr 1, 4:17 AM MDT	Special Weather Statement	BYZ	73 min
Apr 1, 5:35 AM MDT	Special Weather Statement	BYZ	85 min
Apr 2, 8:11 AM MDT	Winter Weather Advisory	BYZ	12 hr
Apr 6, 6:31 PM MDT	Special Weather Statement	BYZ	89 min
Apr 27, 11:38 AM MDT	Special Weather Statement	BYZ	82 min
Apr 27, 12:11 PM MDT	Winter Weather Advisory	BYZ	22 hr
May 5, 2:48 PM MDT	Mesoscale Discussion	SPC	57 min
May 5, 7:22 PM MDT	Special Weather Statement	BYZ	83 min
May 18, 12:37 PM MDT	Mesoscale Discussion	SPC	83 min
May 18, 4:57 PM MDT	Mesoscale Discussion	SPC	63 min
May 18, 5:12 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 18, 5:20 PM MDT	Severe Thunderstorm Warning	BYZ	55 min
May 18, 6:14 PM MDT	Severe Thunderstorm Warning	BYZ	61 min
May 18, 7:00 PM MDT	Severe Thunderstorm Warning	BYZ	60 min
May 18, 7:44 PM MDT	Mesoscale Discussion	SPC	61 min
May 18, 7:52 PM MDT	Severe Thunderstorm Warning	BYZ	53 min
May 18, 8:40 PM MDT	Severe Thunderstorm Warning	BYZ	65 min
May 18, 9:43 PM MDT	Mesoscale Discussion	SPC	62 min
May 18, 9:51 PM MDT	Special Weather Statement	BYZ	39 min
May 19, 6:20 PM MDT	Special Weather Statement	BYZ	55 min
May 31, 2:22 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 31, 7:32 PM MDT	Mesoscale Discussion	SPC	118 min
May 31, 8:25 PM MDT	Special Weather Statement	BYZ	35 min
May 31, 9:09 PM MDT	Special Weather Statement	BYZ	51 min
Jun 3, 12:51 PM MDT	Mesoscale Discussion	SPC	114 min
Jun 3, 12:59 PM MDT	Severe Thunderstorm Warning	BYZ	37 min
Jun 3, 1:37 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 3, 2:53 PM MDT	Special Weather Statement	BYZ	37 min
Jun 3, 3:07 PM MDT	Severe Thunderstorm Warning	BYZ	23 min
Jun 3, 3:36 PM MDT	Special Weather Statement	BYZ	39 min
Jun 3, 5:40 PM MDT	Mesoscale Discussion	SPC	65 min
Jun 4, 12:58 PM MDT	Mesoscale Discussion	SPC	92 min
Jun 4, 1:34 PM MDT	Severe Thunderstorm Warning	BYZ	56 min
Jun 4, 1:44 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 4, 2:27 PM MDT	Severe Thunderstorm Warning	BYZ	63 min
Jun 4, 2:35 PM MDT	Special Weather Statement	BYZ	40 min
Jun 4, 2:56 PM MDT	Severe Thunderstorm Warning	BYZ	23 min
Jun 4, 3:10 PM MDT	Severe Thunderstorm Warning	BYZ	50 min
Jun 4, 3:29 PM MDT	Severe Thunderstorm Warning	BYZ	31 min
Jun 4, 3:59 PM MDT	Severe Thunderstorm Warning	BYZ	46 min
Jun 5, 9:04 PM MDT	Special Weather Statement	BYZ	56 min
Jun 5, 9:52 PM MDT	Special Weather Statement	BYZ	23 min
Jun 10, 1:29 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 10, 2:43 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 10, 4:54 PM MDT	Mesoscale Discussion	SPC	66 min
Jun 10, 5:52 PM MDT	Severe Thunderstorm Warning	BYZ	53 min
Jun 13, 1:46 PM MDT	Mesoscale Discussion	SPC	89 min
Jun 13, 2:09 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 13, 3:59 PM MDT	Special Weather Statement	BYZ	46 min
Jun 13, 4:43 PM MDT	Special Weather Statement	BYZ	32 min
Jun 13, 5:00 PM MDT	Special Weather Statement	BYZ	30 min
Jun 13, 6:11 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 16, 8:24 PM MDT	Special Weather Statement	BYZ	51 min
Jun 17, 2:36 AM MDT	Flash Flood Watch	BYZ	24 hr
Jun 17, 11:40 AM MDT	Mesoscale Discussion	SPC	2 hr
Jun 17, 12:31 PM MDT	Tornado Watch	SPC	7 hr
Jun 17, 2:15 PM MDT	Tornado Warning	BYZ	45 min
Jun 17, 2:22 PM MDT	Mesoscale Discussion	SPC	113 min
Jun 17, 2:23 PM MDT	Severe Thunderstorm Warning	BYZ	52 min
Jun 17, 2:59 PM MDT	Tornado Warning	BYZ	46 min
Jun 17, 3:45 PM MDT	Severe Thunderstorm Warning	BYZ	45 min
Jun 17, 4:00 PM MDT	Severe Thunderstorm Warning	BYZ	30 min
Jun 17, 4:31 PM MDT	Severe Thunderstorm Warning	BYZ	29 min
Jun 17, 7:58 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 24, 2:25 PM MDT	Flash Flood Watch	BYZ	3 days
Jun 25, 1:50 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 25, 3:28 PM MDT	Special Weather Statement	BYZ	32 min
Jun 25, 3:41 PM MDT	Severe Thunderstorm Warning	BYZ	64 min
Jun 25, 3:44 PM MDT	Severe Thunderstorm Warning	BYZ	61 min
Jun 25, 4:44 PM MDT	Severe Thunderstorm Warning	BYZ	31 min
Jun 25, 5:07 PM MDT	Mesoscale Discussion	SPC	83 min
Jun 26, 12:35 PM MDT	Mesoscale Discussion	SPC	115 min
Jun 26, 1:33 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 26, 5:15 PM MDT	Mesoscale Discussion	SPC	90 min
Jun 26, 7:23 PM MDT	Special Weather Statement	BYZ	37 min
Jun 26, 8:13 PM MDT	Mesoscale Discussion	SPC	62 min
Jun 27, 5:08 PM MDT	Special Weather Statement	BYZ	37 min
Jun 27, 5:26 PM MDT	Severe Thunderstorm Warning	BYZ	64 min
Jul 11, 11:31 PM MDT	Special Weather Statement	BYZ	44 min
Jul 22, 2:30 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 22, 2:57 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 22, 3:40 PM MDT	Severe Thunderstorm Warning	BYZ	65 min
Jul 22, 4:03 PM MDT	Severe Thunderstorm Warning	BYZ	57 min
Jul 22, 4:44 PM MDT	Severe Thunderstorm Warning	BYZ	61 min
Jul 22, 4:59 PM MDT	Severe Thunderstorm Warning	BYZ	61 min
Jul 22, 5:29 PM MDT	Severe Thunderstorm Warning	BYZ	31 min
Jul 22, 5:44 PM MDT	Severe Thunderstorm Warning	BYZ	31 min
Jul 22, 6:21 PM MDT	Mesoscale Discussion	SPC	114 min
Jul 22, 8:17 PM MDT	Mesoscale Discussion	SPC	88 min
Jul 23, 8:28 PM MDT	Mesoscale Discussion	SPC	92 min
Jul 23, 10:52 PM MDT	Mesoscale Discussion	SPC	83 min
Jul 24, 3:07 PM MDT	Mesoscale Discussion	SPC	53 min
Jul 24, 4:53 PM MDT	Mesoscale Discussion	SPC	97 min
Jul 24, 5:32 PM MDT	Special Weather Statement	BYZ	43 min
Jul 24, 6:00 PM MDT	Severe Thunderstorm Warning	BYZ	60 min
Jul 24, 6:16 PM MDT	Special Weather Statement	BYZ	14 min
Aug 5, 5:38 PM MDT	Special Weather Statement	BYZ	52 min
Aug 5, 6:26 PM MDT	Special Weather Statement	BYZ	49 min
Aug 17, 2:50 PM MDT	Special Weather Statement	BYZ	25 min
Aug 21, 6:18 PM MDT	Special Weather Statement	BYZ	57 min
Aug 21, 7:16 PM MDT	Special Weather Statement	BYZ	44 min
Aug 21, 7:39 PM MDT	Severe Thunderstorm Warning	BYZ	36 min
Aug 22, 10:03 PM MDT	Flood Watch	BYZ	23 hr
Aug 23, 1:04 PM MDT	Areal Flood Advisory	BYZ	24 hr
Aug 30, 2:12 PM MDT	Mesoscale Discussion	SPC	3 hr
Aug 30, 5:49 PM MDT	Mesoscale Discussion	SPC	86 min
Aug 30, 6:02 PM MDT	Special Weather Statement	BYZ	58 min
Aug 30, 6:07 PM MDT	Severe Thunderstorm Warning	BYZ	41 min
Oct 17, 10:08 AM MDT	Special Weather Statement	BYZ	82 min
Oct 26, 7:41 AM MDT	Special Weather Statement	BYZ	94 min
Nov 7, 2:42 PM MST	Winter Storm Watch	BYZ	37 hr
Nov 9, 3:54 AM MST	Winter Storm Warning	BYZ	48 hr
Nov 9, 3:54 AM MST	Winter Weather Advisory	BYZ	11 hr
Nov 10, 3:55 AM MST	Winter Weather Advisory	BYZ	6 hr
Nov 15, 3:04 PM MST	Winter Weather Advisory	BYZ	29 hr
Nov 25, 7:26 AM MST	Special Weather Statement	BYZ	4 hr
Nov 28, 3:32 PM MST	Winter Weather Advisory	BYZ	39 hr
Nov 29, 9:27 PM MST	Wind Chill Advisory	BYZ	13 hr
Dec 14, 10:36 AM MST	Freezing Rain Advisory	BYZ	4 hr
Dec 21, 3:19 PM MST	Winter Weather Advisory	BYZ	35 hr
Dec 23, 2:42 PM MST	Winter Weather Advisory	BYZ	48 hr
Dec 29, 2:39 PM MST	Wind Chill Advisory	BYZ	19 hr
Dec 30, 2:17 PM MST	Wind Chill Advisory	BYZ	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	31
Tornado Warning	2
Severe Thunderstorm Watch	10
Tornado Watch	1
Mesoscale Discussion	29
Special Weather Statement	35
Flooding
Areal Flood Warning	1
Flash Flood Watch	2
Flood Watch	1
Areal Flood Advisory	1
Winter
Blizzard Warning	1
Winter Storm Warning	2
Winter Storm Watch	4
Freezing Rain Advisory	1
Winter Weather Advisory	16
Cold
Wind Chill Warning	1
Wind Chill Advisory	8
Wind and dust
High Wind Warning	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 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.