Weather alerts in McCone County, Montana, 2023

152 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

McCone County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 152
Warnings: 28
Watches: 12
Advisories: 68
Busiest month: July39 alerts
Busiest day: July 11, 20238 alerts

Over time

By month

Warning verification

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

McCone County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	16	8	50%	5	80%	34 min
Flash flood warnings	0			0

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Glasgow, MT: tornado warnings	1	0	100%	2	0%
NWS Glasgow, MT: severe thunderstorm warnings	73	26	64%	69	74%	33 min
NWS Glasgow, MT: flash flood warnings	8	2	75%	7	29%	11 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, 9:50 AM MST	Dense Fog Advisory	GGW	53 hr
Jan 10, 6:57 PM MST	Dense Fog Advisory	GGW	44 hr
Jan 14, 7:11 PM MST	Dense Fog Advisory	GGW	63 hr
Jan 18, 7:02 PM MST	Dense Fog Advisory	GGW	40 hr
Jan 27, 12:31 PM MST	Wind Chill Advisory	GGW	3 days
Feb 13, 1:38 PM MST	Winter Weather Advisory	GGW	28 hr
Feb 19, 2:55 AM MST	Winter Storm Watch	GGW	24 hr
Feb 20, 2:40 AM MST	Winter Storm Warning	GGW	36 hr
Feb 20, 2:40 AM MST	Winter Weather Advisory	GGW	39 hr
Feb 21, 2:38 PM MST	Wind Chill Advisory	GGW	4 days
Feb 27, 7:58 PM MST	Winter Weather Advisory	GGW	33 hr
Mar 4, 2:12 PM MST	Winter Weather Advisory	GGW	3 days
Mar 8, 3:07 AM MST	Winter Weather Advisory	GGW	38 hr
Mar 10, 3:05 AM MST	Winter Weather Advisory	GGW	39 hr
Mar 14, 2:44 AM MDT	Winter Weather Advisory	GGW	48 hr
Mar 16, 2:13 PM MDT	Wind Chill Advisory	GGW	43 hr
Mar 29, 2:18 PM MDT	Winter Weather Advisory	GGW	36 hr
Apr 17, 2:13 PM MDT	Winter Storm Watch	GGW	25 hr
Apr 18, 2:56 PM MDT	Winter Storm Warning	GGW	36 hr
Apr 20, 2:31 AM MDT	Winter Weather Advisory	GGW	12 hr
May 2, 2:17 PM MDT	Lake Wind Advisory	GGW	5 hr
May 3, 7:13 PM MDT	Lake Wind Advisory	GGW	71 hr
May 9, 2:32 AM MDT	Flood Watch	GGW	72 hr
May 9, 8:01 PM MDT	Special Weather Statement	GGW	59 min
May 12, 2:26 PM MDT	Lake Wind Advisory	GGW	28 hr
May 16, 12:53 PM MDT	Lake Wind Advisory	GGW	29 hr
May 17, 7:23 AM MDT	Dense Smoke Advisory	GGW	19 hr
May 24, 3:48 PM MDT	Special Weather Statement	GGW	57 min
May 24, 4:04 PM MDT	Mesoscale Discussion	SPC	116 min
May 24, 4:26 PM MDT	Severe Thunderstorm Warning	GGW	37 min
May 24, 4:37 PM MDT	Severe Thunderstorm Warning	GGW	53 min
May 24, 5:04 PM MDT	Areal Flood Advisory	GGW	3 hr
May 24, 7:59 PM MDT	Special Weather Statement	GGW	61 min
May 25, 9:56 AM MDT	Flood Watch	GGW	62 hr
May 25, 12:49 PM MDT	Mesoscale Discussion	SPC	116 min
May 25, 9:23 PM MDT	Special Weather Statement	GGW	67 min
May 25, 10:37 PM MDT	Special Weather Statement	GGW	53 min
May 25, 11:59 PM MDT	Areal Flood Advisory	GGW	10 hr
May 27, 5:54 PM MDT	Mesoscale Discussion	SPC	96 min
May 27, 9:23 PM MDT	Special Weather Statement	GGW	67 min
May 28, 7:12 PM MDT	Special Weather Statement	GGW	63 min
May 29, 3:36 PM MDT	Special Weather Statement	GGW	54 min
May 31, 1:41 PM MDT	Flood Watch	GGW	4 days
Jun 1, 10:06 PM MDT	Special Weather Statement	GGW	54 min
Jun 2, 1:46 PM MDT	Mesoscale Discussion	SPC	119 min
Jun 4, 5:21 PM MDT	Severe Thunderstorm Warning	GGW	28 min
Jun 7, 4:34 PM MDT	Special Weather Statement	GGW	56 min
Jun 7, 9:04 PM MDT	Special Weather Statement	GGW	41 min
Jun 8, 7:08 PM MDT	Severe Thunderstorm Warning	GGW	47 min
Jun 8, 7:54 PM MDT	Special Weather Statement	GGW	66 min
Jun 8, 8:38 PM MDT	Special Weather Statement	GGW	67 min
Jun 14, 2:44 PM MDT	Special Weather Statement	GGW	61 min
Jun 15, 2:36 AM MDT	Lake Wind Advisory	GGW	18 hr
Jun 18, 2:57 PM MDT	Mesoscale Discussion	SPC	93 min
Jun 19, 10:41 PM MDT	Special Weather Statement	GGW	64 min
Jun 20, 12:08 AM MDT	Severe Thunderstorm Warning	GGW	37 min
Jun 21, 1:51 PM MDT	Flood Watch	GGW	3 days
Jun 23, 2:17 PM MDT	Lake Wind Advisory	GGW	6 hr
Jun 27, 11:35 AM MDT	Special Weather Statement	GGW	55 min
Jun 27, 1:17 PM MDT	Special Weather Statement	GGW	58 min
Jun 27, 2:37 PM MDT	Special Weather Statement	GGW	53 min
Jul 1, 4:43 PM MDT	Special Weather Statement	GGW	62 min
Jul 1, 5:14 PM MDT	Special Weather Statement	GGW	61 min
Jul 1, 5:41 PM MDT	Special Weather Statement	GGW	64 min
Jul 1, 6:44 PM MDT	Special Weather Statement	GGW	61 min
Jul 2, 2:20 AM MDT	Lake Wind Advisory	GGW	18 hr
Jul 4, 2:04 AM MDT	Lake Wind Advisory	GGW	16 hr
Jul 10, 4:59 PM MDT	Lake Wind Advisory	GGW	17 hr
Jul 11, 1:04 PM MDT	Mesoscale Discussion	SPC	116 min
Jul 11, 1:56 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 11, 3:00 PM MDT	Special Weather Statement	GGW	60 min
Jul 11, 3:13 PM MDT	Severe Thunderstorm Warning	GGW	37 min
Jul 11, 3:20 PM MDT	Severe Thunderstorm Warning	GGW	55 min
Jul 11, 3:33 PM MDT	Special Weather Statement	GGW	57 min
Jul 11, 4:00 PM MDT	Severe Thunderstorm Warning	GGW	60 min
Jul 11, 4:33 PM MDT	Special Weather Statement	GGW	57 min
Jul 12, 2:13 PM MDT	Lake Wind Advisory	GGW	30 hr
Jul 13, 5:13 PM MDT	Special Weather Statement	GGW	62 min
Jul 13, 5:16 PM MDT	Severe Thunderstorm Warning	GGW	59 min
Jul 13, 8:23 PM MDT	Lake Wind Advisory	GGW	24 hr
Jul 14, 3:18 PM MDT	Dense Smoke Advisory	GGW	47 hr
Jul 14, 8:28 PM MDT	Special Weather Statement	GGW	62 min
Jul 17, 3:02 AM MDT	Lake Wind Advisory	GGW	42 hr
Jul 18, 8:43 PM MDT	Lake Wind Advisory	GGW	21 hr
Jul 21, 2:17 PM MDT	Heat Advisory	GGW	4 days
Jul 21, 6:04 PM MDT	Special Weather Statement	GGW	56 min
Jul 22, 10:25 PM MDT	Severe Thunderstorm Warning	GGW	65 min
Jul 23, 10:33 AM MDT	Red Flag Warning	GGW	10 hr
Jul 24, 2:32 AM MDT	Fire Weather Watch	GGW	24 hr
Jul 24, 8:51 PM MDT	Special Weather Statement	GGW	54 min
Jul 25, 2:51 AM MDT	Lake Wind Advisory	GGW	15 hr
Jul 25, 2:55 AM MDT	Red Flag Warning	GGW	18 hr
Jul 25, 4:54 PM MDT	Severe Thunderstorm Warning	GGW	36 min
Jul 30, 12:15 AM MDT	Special Weather Statement	GGW	60 min
Jul 30, 3:42 PM MDT	Mesoscale Discussion	SPC	93 min
Jul 30, 4:38 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	67 min
Jul 30, 5:43 PM MDT	Severe Thunderstorm Warning Destructive damage threat	GGW	62 min
Jul 30, 10:14 PM MDT	Special Weather Statement	GGW	61 min
Jul 30, 11:42 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	63 min
Jul 31, 12:42 AM MDT	Special Weather Statement	GGW	63 min
Aug 3, 2:06 PM MDT	Areal Flood Advisory	GGW	3 hr
Aug 9, 2:21 PM MDT	Lake Wind Advisory	GGW	30 hr
Aug 9, 2:23 PM MDT	Red Flag Warning	GGW	30 hr
Aug 12, 5:20 PM MDT	Lake Wind Advisory	GGW	5 hr
Aug 15, 2:36 PM MDT	Lake Wind Advisory	GGW	30 hr
Aug 16, 2:36 PM MDT	Fire Weather Watch	GGW	23 hr
Aug 17, 2:41 AM MDT	Heat Advisory	GGW	43 hr
Aug 17, 2:05 PM MDT	Red Flag Warning	GGW	31 hr
Aug 18, 3:04 AM MDT	Lake Wind Advisory	GGW	18 hr
Aug 18, 6:37 PM MDT	Special Weather Statement	GGW	38 min
Aug 18, 8:02 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	58 min
Aug 18, 8:52 PM MDT	Special Weather Statement	GGW	83 min
Aug 18, 11:31 PM MDT	Lake Wind Advisory	GGW	12 hr
Aug 19, 1:44 PM MDT	Lake Wind Advisory	GGW	25 hr
Aug 28, 1:47 PM MDT	Lake Wind Advisory	GGW	3 days
Aug 29, 3:06 AM MDT	Red Flag Warning	GGW	22 hr
Aug 30, 5:59 PM MDT	Special Weather Statement	GGW	61 min
Aug 30, 6:33 PM MDT	Severe Thunderstorm Warning	GGW	57 min
Aug 30, 7:39 PM MDT	Special Weather Statement	GGW	51 min
Aug 30, 8:31 PM MDT	Special Weather Statement	GGW	59 min
Sep 4, 2:32 AM MDT	Lake Wind Advisory	GGW	17 hr
Sep 4, 11:30 AM MDT	Dense Smoke Advisory	GGW	39 hr
Sep 7, 2:03 PM MDT	Lake Wind Advisory	GGW	6 hr
Sep 15, 1:47 PM MDT	Fire Weather Watch	GGW	24 hr
Sep 16, 1:38 PM MDT	Red Flag Warning	GGW	55 hr
Sep 19, 9:40 AM MDT	Lake Wind Advisory	GGW	8 hr
Sep 20, 10:04 PM MDT	Lake Wind Advisory	GGW	56 hr
Sep 23, 11:39 PM MDT	Dense Fog Advisory	GGW	10 hr
Sep 25, 2:12 PM MDT	Lake Wind Advisory	GGW	31 hr
Sep 27, 6:53 PM MDT	Lake Wind Advisory	GGW	19 hr
Sep 29, 2:16 PM MDT	Lake Wind Advisory	GGW	30 hr
Oct 2, 2:09 PM MDT	Lake Wind Advisory	GGW	30 hr
Oct 4, 2:29 AM MDT	Lake Wind Advisory	GGW	44 hr
Oct 10, 2:35 AM MDT	Lake Wind Advisory	GGW	39 hr
Oct 16, 2:29 AM MDT	Fire Weather Watch	GGW	8 hr
Oct 16, 10:00 AM MDT	Red Flag Warning	GGW	35 hr
Oct 16, 10:01 AM MDT	High Wind Warning	GGW	43 hr
Oct 16, 3:51 PM MDT	Lake Wind Advisory	GGW	11 hr
Oct 19, 2:26 PM MDT	Lake Wind Advisory	GGW	22 hr
Oct 23, 3:11 AM MDT	Winter Storm Watch	GGW	35 hr
Oct 24, 2:43 AM MDT	Winter Storm Warning	GGW	63 hr
Oct 24, 1:55 PM MDT	Winter Weather Advisory	GGW	62 hr
Oct 26, 5:54 PM MDT	Winter Storm Warning	GGW	10 hr
Nov 2, 2:02 PM MDT	Winter Weather Advisory	GGW	22 hr
Nov 3, 5:14 PM MDT	Dense Fog Advisory	GGW	27 hr
Nov 5, 2:24 AM MST	Lake Wind Advisory	GGW	19 hr
Nov 7, 2:57 AM MST	Lake Wind Advisory	GGW	41 hr
Nov 10, 1:47 PM MST	Lake Wind Advisory	GGW	51 hr
Nov 15, 3:19 PM MST	Lake Wind Advisory	GGW	16 hr
Nov 19, 2:07 AM MST	Lake Wind Advisory	GGW	39 hr
Nov 25, 2:22 AM MST	Lake Wind Advisory	GGW	24 hr
Dec 6, 2:08 PM MST	Winter Weather Advisory	GGW	48 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	16
Severe Thunderstorm Watch	1
Mesoscale Discussion	7
Special Weather Statement	37
Flooding
Flood Watch	4
Areal Flood Advisory	3
Winter
Winter Storm Warning	4
Winter Storm Watch	3
Winter Weather Advisory	12
Heat
Heat Advisory	2
Cold
Wind Chill Advisory	3
Wind and dust
High Wind Warning	1
Lake Wind Advisory	39
Fire
Red Flag Warning	7
Fire Weather Watch	4
Fog and smoke
Dense Fog Advisory	6
Dense Smoke Advisory	3

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.