Weather alerts in Logan County, Colorado, 2025

214 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Logan County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts: 214
Warnings: 67
Watches: 36
Advisories: 18
Busiest month: June51 alerts
Busiest day: May 18, 202513 alerts

Over time

By month

Warning verification

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

4 of 8 tornado warnings covering Logan County in 2025 had a tornado report inside them; 2 of 4 tornado reports fell inside a warning, on average 18 minutes after it went out.

Logan County, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	8	4	50%	4	50%	18 min
Severe thunderstorm warnings	46	20	57%	36	67%	25 min
Flash flood warnings	0			0

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Denver/Boulder, CO: tornado warnings	32	10	69%	25	56%	13 min
NWS Denver/Boulder, CO: severe thunderstorm warnings	363	126	65%	369	75%	20 min
NWS Denver/Boulder, CO: flash flood warnings	22	2	91%	5	60%	42 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 3, 1:36 PM MST	Dense Fog Advisory	BOU	20 hr
Jan 3, 1:49 PM MST	Winter Weather Advisory	BOU	49 hr
Jan 17, 2:02 PM MST	Cold Weather Advisory	BOU	4 days
Feb 10, 2:11 PM MST	Winter Weather Advisory	BOU	43 hr
Feb 12, 2:21 AM MST	Cold Weather Advisory	BOU	30 hr
Feb 16, 2:05 PM MST	Extreme Cold Watch	BOU	13 hr
Feb 17, 2:58 AM MST	Cold Weather Advisory	BOU	3 days
Feb 18, 1:45 PM MST	Winter Weather Advisory	BOU	15 hr
Mar 2, 2:34 AM MST	Winter Storm Watch	BOU	33 hr
Mar 2, 2:38 PM MST	Winter Weather Advisory	BOU	50 hr
Mar 3, 2:20 AM MST	High Wind Watch	BOU	10 hr
Mar 3, 2:20 AM MST	High Wind Warning	BOU	39 hr
Mar 9, 2:03 PM MDT	Red Flag Warning	BOU	29 hr
Mar 12, 2:35 PM MDT	High Wind Watch	BOU	23 hr
Mar 13, 1:47 PM MDT	High Wind Warning	BOU	30 hr
Mar 15, 1:40 PM MDT	Fire Weather Watch	BOU	13 hr
Mar 16, 2:48 AM MDT	Red Flag Warning	BOU	16 hr
Mar 16, 1:54 PM MDT	Red Flag Warning	BOU	29 hr
Mar 17, 12:38 PM MDT	Winter Weather Advisory	BOU	44 hr
Mar 18, 11:32 PM MDT	Mesoscale Discussion	SPC	4 hr
Mar 20, 2:30 AM MDT	Fire Weather Watch	BOU	24 hr
Mar 21, 2:28 AM MDT	Fire Weather Watch	BOU	13 hr
Mar 21, 3:09 PM MDT	Red Flag Warning	BOU	29 hr
Apr 7, 1:43 PM MDT	Fire Weather Watch	BOU	13 hr
Apr 8, 2:36 AM MDT	Red Flag Warning	BOU	16 hr
Apr 8, 2:01 PM MDT	Red Flag Warning	BOU	29 hr
Apr 20, 12:58 PM MDT	Red Flag Warning	BOU	30 hr
Apr 25, 8:07 PM MDT	Dense Fog Advisory	BOU	14 hr
May 14, 3:56 PM MDT	Mesoscale Discussion	SPC	94 min
May 14, 4:33 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
May 14, 4:45 PM MDT	Severe Thunderstorm Warning	BOU	45 min
May 14, 5:22 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	38 min
May 14, 5:58 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	47 min
May 14, 6:42 PM MDT	Mesoscale Discussion	SPC	93 min
May 14, 6:43 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	47 min
May 18, 1:12 PM MDT	Mesoscale Discussion	SPC	3 hr
May 18, 1:57 PM MDT	Tornado Watch	SPC	6 hr
May 18, 2:45 PM MDT	Severe Thunderstorm Warning	BOU	45 min
May 18, 2:56 PM MDT	Tornado Warning	BOU	34 min
May 18, 3:25 PM MDT	Severe Thunderstorm Warning	BOU	35 min
May 18, 3:55 PM MDT	Severe Thunderstorm Warning	BOU	20 min
May 18, 4:01 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	44 min
May 18, 4:10 PM MDT	Tornado Warning	BOU	35 min
May 18, 4:11 PM MDT	Tornado Warning	BOU	34 min
May 18, 4:14 PM MDT	Mesoscale Discussion	SPC	2 hr
May 18, 4:26 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	34 min
May 18, 4:48 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	31 min
May 18, 4:50 PM MDT	Severe Thunderstorm Warning	BOU	40 min
May 22, 9:13 PM MDT	Special Weather Statement	BOU	32 min
May 22, 9:43 PM MDT	Special Weather Statement	BOU	47 min
May 22, 10:23 PM MDT	Special Weather Statement	BOU	37 min
May 23, 12:53 PM MDT	Mesoscale Discussion	SPC	3 hr
May 23, 2:59 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
May 23, 4:02 PM MDT	Severe Thunderstorm Warning	BOU	43 min
May 23, 4:09 PM MDT	Mesoscale Discussion	SPC	2 hr
May 23, 4:30 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BOU	45 min
May 23, 4:56 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	49 min
May 23, 5:11 PM MDT	Tornado Warning Tornado observed	BOU	34 min
May 24, 7:13 PM MDT	Dense Fog Advisory	BOU	10 hr
May 27, 4:44 PM MDT	Severe Thunderstorm Warning	BOU	46 min
May 28, 11:53 AM MDT	Mesoscale Discussion	SPC	3 hr
Jun 2, 1:14 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 2, 2:12 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 2, 4:55 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 2, 6:39 PM MDT	Severe Thunderstorm Warning	BOU	36 min
Jun 2, 6:55 PM MDT	Tornado Warning	BOU	35 min
Jun 2, 7:23 PM MDT	Tornado Warning	BOU	22 min
Jun 2, 7:44 PM MDT	Tornado Warning	BOU	31 min
Jun 2, 8:09 PM MDT	Tornado Warning	BOU	21 min
Jun 2, 8:27 PM MDT	Areal Flood Advisory	BOU	2 hr
Jun 5, 12:30 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 5, 1:39 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 12, 2:04 PM MDT	Mesoscale Discussion	SPC	116 min
Jun 12, 2:53 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 12, 5:08 PM MDT	Mesoscale Discussion	SPC	97 min
Jun 12, 5:30 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jun 12, 6:22 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jun 13, 12:41 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 13, 1:56 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 13, 6:48 PM MDT	Severe Thunderstorm Warning	BOU	42 min
Jun 13, 7:02 PM MDT	Mesoscale Discussion	SPC	58 min
Jun 13, 7:40 PM MDT	Severe Thunderstorm Warning	BOU	35 min
Jun 13, 8:14 PM MDT	Severe Thunderstorm Warning	BOU	31 min
Jun 14, 12:57 PM MDT	Mesoscale Discussion	SPC	93 min
Jun 14, 2:43 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 14, 5:57 PM MDT	Severe Thunderstorm Warning	BOU	33 min
Jun 14, 8:34 PM MDT	Special Weather Statement	BOU	41 min
Jun 15, 2:49 PM MDT	Mesoscale Discussion	SPC	116 min
Jun 15, 4:47 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 15, 6:40 PM MDT	Special Weather Statement	BOU	35 min
Jun 15, 6:54 PM MDT	Mesoscale Discussion	SPC	96 min
Jun 16, 5:12 PM MDT	Mesoscale Discussion	SPC	93 min
Jun 16, 6:37 PM MDT	Special Weather Statement	BOU	23 min
Jun 17, 3:45 AM MDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 17, 4:56 AM MDT	Mesoscale Discussion	SPC	64 min
Jun 17, 10:48 AM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 17, 2:25 PM MDT	Mesoscale Discussion	SPC	95 min
Jun 17, 2:44 PM MDT	Special Weather Statement	BOU	46 min
Jun 18, 1:51 PM MDT	Heat Advisory	BOU	3 days
Jun 22, 4:26 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 24, 1:09 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 24, 4:05 PM MDT	Mesoscale Discussion	SPC	115 min
Jun 24, 4:14 PM MDT	Severe Thunderstorm Warning	BOU	46 min
Jun 24, 5:04 PM MDT	Special Weather Statement	BOU	41 min
Jun 25, 3:42 PM MDT	Mesoscale Discussion	SPC	93 min
Jun 28, 3:14 PM MDT	Special Weather Statement	BOU	46 min
Jun 28, 3:46 PM MDT	Special Weather Statement	BOU	44 min
Jun 28, 4:29 PM MDT	Special Weather Statement	BOU	46 min
Jun 29, 12:52 PM MDT	Mesoscale Discussion	SPC	113 min
Jun 29, 1:45 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 29, 5:09 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 29, 9:10 PM MDT	Mesoscale Discussion	SPC	65 min
Jul 1, 3:43 PM MDT	Mesoscale Discussion	SPC	92 min
Jul 4, 3:51 PM MDT	Special Weather Statement	BOU	54 min
Jul 4, 4:49 PM MDT	Mesoscale Discussion	SPC	86 min
Jul 4, 4:59 PM MDT	Special Weather Statement	BOU	46 min
Jul 6, 12:38 PM MDT	Mesoscale Discussion	SPC	3 hr
Jul 6, 1:17 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 6, 3:31 PM MDT	Severe Thunderstorm Warning	BOU	44 min
Jul 6, 4:11 PM MDT	Severe Thunderstorm Warning	BOU	49 min
Jul 6, 4:59 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	26 min
Jul 6, 5:03 PM MDT	Mesoscale Discussion	SPC	87 min
Jul 6, 5:24 PM MDT	Special Weather Statement	BOU	51 min
Jul 6, 6:05 PM MDT	Special Weather Statement	BOU	55 min
Jul 7, 1:23 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 7, 1:49 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 7, 3:34 PM MDT	Special Weather Statement	BOU	41 min
Jul 7, 3:36 PM MDT	Special Weather Statement	BOU	39 min
Jul 7, 4:07 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jul 7, 4:28 PM MDT	Mesoscale Discussion	SPC	92 min
Jul 8, 4:29 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 8, 5:24 PM MDT	Special Weather Statement	BOU	51 min
Jul 10, 1:43 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 2:29 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 10, 4:06 PM MDT	Special Weather Statement	BOU	24 min
Jul 10, 5:56 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 11, 11:57 AM MDT	Flood Watch	BOU	11 hr
Jul 11, 2:36 PM MDT	Mesoscale Discussion	SPC	114 min
Jul 11, 4:17 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 11, 4:26 PM MDT	Special Weather Statement	BOU	49 min
Jul 11, 5:08 PM MDT	Special Weather Statement	BOU	52 min
Jul 11, 7:32 PM MDT	Mesoscale Discussion	SPC	88 min
Jul 14, 8:02 PM MDT	Special Weather Statement	BOU	58 min
Jul 16, 2:45 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 16, 5:14 PM MDT	Severe Thunderstorm Warning	BOU	31 min
Jul 22, 6:12 PM MDT	Special Weather Statement	BOU	48 min
Jul 25, 4:09 PM MDT	Mesoscale Discussion	SPC	96 min
Jul 26, 2:48 PM MDT	Mesoscale Discussion	SPC	57 min
Jul 31, 5:32 PM MDT	Mesoscale Discussion	SPC	88 min
Jul 31, 6:58 PM MDT	Areal Flood Advisory	BOU	3 hr
Jul 31, 7:12 PM MDT	Special Weather Statement	BOU	48 min
Aug 1, 1:51 PM MDT	Mesoscale Discussion	SPC	114 min
Aug 1, 2:46 PM MDT	Tornado Watch	SPC	7 hr
Aug 1, 7:03 PM MDT	Special Weather Statement	BOU	42 min
Aug 1, 7:34 PM MDT	Special Weather Statement	BOU	41 min
Aug 1, 7:46 PM MDT	Severe Thunderstorm Warning	BOU	44 min
Aug 1, 8:06 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	39 min
Aug 1, 8:19 PM MDT	Mesoscale Discussion	SPC	86 min
Aug 1, 8:24 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	66 min
Aug 2, 1:36 PM MDT	Mesoscale Discussion	SPC	114 min
Aug 2, 3:01 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 2, 5:01 PM MDT	Mesoscale Discussion	SPC	89 min
Aug 2, 5:07 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Aug 4, 2:07 PM MDT	Mesoscale Discussion	SPC	113 min
Aug 4, 3:03 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 4, 6:46 PM MDT	Mesoscale Discussion	SPC	119 min
Aug 9, 12:53 PM MDT	Mesoscale Discussion	SPC	3 hr
Aug 9, 1:52 PM MDT	Severe Thunderstorm Watch	SPC	12 hr
Aug 9, 2:18 PM MDT	Severe Thunderstorm Warning	BOU	42 min
Aug 9, 2:51 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	39 min
Aug 9, 3:26 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	49 min
Aug 9, 4:08 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	52 min
Aug 9, 5:02 PM MDT	Severe Thunderstorm Warning	BOU	23 min
Aug 9, 5:06 PM MDT	Severe Thunderstorm Warning	BOU	25 min
Aug 9, 5:15 PM MDT	Areal Flood Advisory	BOU	3 hr
Aug 10, 12:15 PM MDT	Severe Thunderstorm Watch	SPC	10 hr
Aug 10, 3:53 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 10, 7:10 PM MDT	Special Weather Statement	BOU	35 min
Aug 10, 7:29 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 10, 7:54 PM MDT	Special Weather Statement	BOU	36 min
Aug 14, 5:30 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 6:19 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	41 min
Aug 14, 7:00 PM MDT	Special Weather Statement	BOU	45 min
Aug 14, 9:34 PM MDT	Special Weather Statement	BOU	41 min
Aug 15, 2:49 PM MDT	Mesoscale Discussion	SPC	116 min
Aug 18, 2:20 PM MDT	Mesoscale Discussion	SPC	115 min
Aug 18, 4:25 PM MDT	Severe Thunderstorm Watch	SPC	4 hr
Aug 18, 5:05 PM MDT	Severe Thunderstorm Warning	BOU	40 min
Aug 18, 5:27 PM MDT	Special Weather Statement	BOU	48 min
Aug 23, 10:30 PM MDT	Severe Thunderstorm Warning	BOU	45 min
Aug 23, 11:12 PM MDT	Severe Thunderstorm Warning	BOU	48 min
Aug 27, 2:13 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 28, 7:31 AM MDT	Special Weather Statement	BOU	59 min
Aug 28, 5:05 PM MDT	Severe Thunderstorm Warning	BOU	25 min
Aug 28, 5:28 PM MDT	Severe Thunderstorm Warning	BOU	47 min
Sep 9, 4:28 PM MDT	Severe Thunderstorm Warning	BOU	47 min
Sep 9, 4:49 PM MDT	Mesoscale Discussion	SPC	86 min
Sep 9, 5:38 PM MDT	Severe Thunderstorm Warning	BOU	52 min
Sep 11, 12:15 AM MDT	Special Weather Statement	BOU	45 min
Sep 11, 2:47 PM MDT	Mesoscale Discussion	SPC	118 min
Sep 16, 2:05 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 16, 4:31 PM MDT	Mesoscale Discussion	SPC	89 min
Sep 20, 4:13 AM MDT	Special Weather Statement	BOU	92 min
Oct 4, 2:55 PM MDT	Mesoscale Discussion	SPC	2 hr
Oct 9, 2:39 AM MDT	Dense Fog Advisory	BOU	7 hr
Oct 12, 2:17 AM MDT	Dense Fog Advisory	BOU	6 hr
Oct 15, 1:42 AM MDT	Dense Fog Advisory	BOU	10 hr
Oct 15, 4:56 PM MDT	Mesoscale Discussion	SPC	2 hr
Oct 17, 1:34 PM MDT	Freeze Watch	BOU	13 hr
Oct 18, 2:06 AM MDT	Freeze Warning	BOU	30 hr
Oct 19, 1:32 PM MDT	Red Flag Warning	BOU	28 hr
Dec 16, 1:51 AM MST	High Wind Watch	BOU	24 hr
Dec 16, 1:51 AM MST	High Wind Warning	BOU	58 hr
Dec 18, 2:31 AM MST	Red Flag Warning	BOU	14 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	46
Tornado Warning	8
Severe Thunderstorm Watch	23
Tornado Watch	2
Mesoscale Discussion	59
Special Weather Statement	34
Flooding
Flood Watch	1
Areal Flood Advisory	3
Winter
Winter Storm Watch	1
Winter Weather Advisory	5
Heat
Heat Advisory	1
Cold
Freeze Warning	1
Extreme Cold Watch	1
Freeze Watch	1
Cold Weather Advisory	3
Wind and dust
High Wind Warning	3
High Wind Watch	3
Fire
Red Flag Warning	9
Fire Weather Watch	4
Fog and smoke
Dense Fog Advisory	6

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2024 2026

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.