Alert archive / Colorado / Washington County

Weather alerts in Washington County, Colorado, 2026

299 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Washington County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts: 299
Warnings: 129
Watches: 51
Advisories: 19
Busiest month: June94 alerts
Busiest day: June 24, 202616 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 12 tornado warnings covering Washington County in 2026 had a tornado report inside them; 3 of 3 tornado reports fell inside a warning, on average 19 minutes after it went out.

Washington County, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	12	1	92%	3	100%	19 min
Severe thunderstorm warnings	86	34	60%	59	80%	21 min
Flash flood warnings	4	1	75%	0

Each office's whole area, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Denver/Boulder, CO: tornado warnings	32	5	84%	14	64%	13 min
NWS Denver/Boulder, CO: severe thunderstorm warnings	416	146	65%	392	79%	17 min
NWS Denver/Boulder, CO: flash flood warnings	38	9	76%	15	93%	41 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

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 14, 2:21 AM MST	High Wind Watch	BOU	32 hr
Jan 14, 1:47 PM MST	Fire Weather Watch	BOU	20 hr
Jan 14, 1:47 PM MST	Red Flag Warning	BOU	28 hr
Jan 15, 10:01 AM MST	Red Flag Warning	BOU	32 hr
Jan 15, 10:38 AM MST	High Wind Warning	BOU	30 hr
Jan 16, 2:44 AM MST	Fire Weather Watch	BOU	12 hr
Jan 16, 2:15 PM MST	Red Flag Warning	BOU	27 hr
Jan 22, 1:58 AM MST	Cold Weather Advisory	BOU	4 days
Feb 6, 12:05 PM MST	Red Flag Warning	BOU	29 hr
Feb 13, 12:30 PM MST	Fire Weather Watch	BOU	59 hr
Feb 13, 12:30 PM MST	Fire Weather Watch	BOU	72 hr
Feb 14, 2:36 AM MST	Fire Weather Watch	BOU	9 hr
Feb 14, 11:46 AM MST	Red Flag Warning	BOU	29 hr
Feb 15, 11:26 AM MST	Red Flag Warning	BOU	31 hr
Feb 15, 11:41 AM MST	High Wind Watch	BOU	25 hr
Feb 16, 12:13 PM MST	Red Flag Warning	BOU	31 hr
Feb 16, 12:22 PM MST	High Wind Warning	BOU	29 hr
Feb 24, 11:57 AM MST	Red Flag Warning	BOU	30 hr
Feb 25, 1:00 AM MST	Fire Weather Watch	BOU	26 hr
Feb 26, 3:16 AM MST	Fire Weather Watch	BOU	8 hr
Feb 26, 11:04 AM MST	Red Flag Warning	BOU	31 hr
Mar 6, 3:36 PM MST	Mesoscale Discussion	SPC	4 hr
Mar 10, 1:06 PM MDT	Fire Weather Watch	BOU	24 hr
Mar 11, 1:22 PM MDT	Red Flag Warning	BOU	32 hr
Mar 11, 11:23 PM MDT	Fire Weather Watch	BOU	13 hr
Mar 12, 12:50 PM MDT	Fire Weather Watch	BOU	8 hr
Mar 12, 12:50 PM MDT	Red Flag Warning	BOU	31 hr
Mar 12, 8:58 PM MDT	Red Flag Warning	BOU	48 hr
Mar 13, 11:25 AM MDT	High Wind Watch	BOU	27 hr
Mar 14, 2:27 PM MDT	High Wind Warning	BOU	25 hr
Mar 16, 1:55 PM MDT	Red Flag Warning	BOU	30 hr
Mar 16, 11:49 PM MDT	Fire Weather Watch	BOU	13 hr
Mar 17, 1:09 PM MDT	Red Flag Warning	BOU	30 hr
Mar 19, 2:16 AM MDT	Fire Weather Watch	BOU	35 hr
Apr 2, 12:57 PM MDT	Red Flag Warning	BOU	30 hr
Apr 10, 12:38 PM MDT	Fire Weather Watch	BOU	35 hr
Apr 11, 11:13 PM MDT	Fire Weather Watch	BOU	13 hr
Apr 11, 11:13 PM MDT	Red Flag Warning	BOU	21 hr
Apr 14, 11:53 PM MDT	Fire Weather Watch	BOU	24 hr
Apr 15, 11:43 AM MDT	Red Flag Warning	BOU	33 hr
Apr 15, 11:58 AM MDT	Freeze Watch	BOU	23 hr
Apr 16, 11:02 AM MDT	Freeze Warning	BOU	45 hr
Apr 17, 11:33 PM MDT	Red Flag Warning	BOU	19 hr
Apr 20, 11:42 AM MDT	Fire Weather Watch	BOU	9 hr
Apr 20, 8:48 PM MDT	Red Flag Warning	BOU	51 hr
Apr 21, 1:15 PM MDT	Fire Weather Watch	BOU	23 hr
Apr 22, 12:22 PM MDT	Red Flag Warning	BOU	31 hr
Apr 22, 11:51 PM MDT	Fire Weather Watch	BOU	14 hr
Apr 23, 1:41 PM MDT	Red Flag Warning	BOU	30 hr
Apr 26, 2:47 PM MDT	Special Weather Statement	BOU	43 min
Apr 26, 3:24 PM MDT	Special Weather Statement	BOU	36 min
Apr 26, 4:02 PM MDT	Special Weather Statement	BOU	43 min
May 4, 12:51 AM MDT	Winter Weather Advisory	BOU	61 hr
May 4, 12:59 PM MDT	Freeze Watch	BOU	23 hr
May 5, 11:31 AM MDT	Freeze Warning	BOU	44 hr
May 9, 7:20 PM MDT	Severe Thunderstorm Warning	BOU	40 min
May 9, 7:23 PM MDT	Special Weather Statement	BOU	22 min
May 16, 1:36 PM MDT	Mesoscale Discussion	SPC	84 min
May 16, 3:05 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
May 16, 3:58 PM MDT	Severe Thunderstorm Warning	BOU	47 min
May 17, 11:53 AM MDT	Freeze Watch	BOU	24 hr
May 17, 2:08 PM MDT	Mesoscale Discussion	SPC	3 hr
May 18, 11:36 AM MDT	Frost Advisory	BOU	20 hr
May 21, 2:19 PM MDT	Mesoscale Discussion	SPC	116 min
May 21, 2:55 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 21, 4:33 PM MDT	Severe Thunderstorm Warning	BOU	42 min
May 21, 4:52 PM MDT	Tornado Warning	BOU	38 min
May 21, 5:16 PM MDT	Mesoscale Discussion	SPC	119 min
May 21, 5:22 PM MDT	Tornado Warning	BOU	38 min
May 21, 5:56 PM MDT	Tornado Warning	BOU	36 min
May 21, 5:59 PM MDT	Tornado Warning	BOU	31 min
May 21, 6:25 PM MDT	Severe Thunderstorm Warning	BOU	35 min
May 21, 6:30 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	30 min
May 21, 6:51 PM MDT	Flash Flood Warning	BOU	6 hr
May 21, 7:01 PM MDT	Severe Thunderstorm Warning	BOU	18 min
May 21, 7:09 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	36 min
May 27, 2:37 PM MDT	Special Weather Statement	BOU	38 min
May 29, 2:19 PM MDT	Mesoscale Discussion	SPC	116 min
May 29, 4:59 PM MDT	Special Weather Statement	BOU	31 min
May 30, 1:14 PM MDT	Mesoscale Discussion	SPC	2 hr
May 30, 2:13 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 30, 5:20 PM MDT	Mesoscale Discussion	SPC	85 min
May 30, 5:33 PM MDT	Severe Thunderstorm Warning	BOU	27 min
Jun 1, 5:41 AM MDT	Special Weather Statement	BOU	34 min
Jun 1, 6:38 AM MDT	Special Weather Statement	BOU	37 min
Jun 1, 11:51 AM MDT	Mesoscale Discussion	SPC	2 hr
Jun 1, 12:52 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 1, 3:13 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	47 min
Jun 1, 3:24 PM MDT	Tornado Warning	BOU	39 min
Jun 1, 3:38 PM MDT	Mesoscale Discussion	SPC	67 min
Jun 1, 3:40 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	50 min
Jun 1, 4:24 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	41 min
Jun 1, 4:37 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	28 min
Jun 1, 5:00 PM MDT	Tornado Warning	BOU	45 min
Jun 1, 5:04 PM MDT	Severe Thunderstorm Warning	BOU	41 min
Jun 1, 5:26 PM MDT	Severe Thunderstorm Warning	BOU	34 min
Jun 1, 5:28 PM MDT	Tornado Warning	BOU	32 min
Jun 1, 5:45 PM MDT	Severe Thunderstorm Warning	BOU	15 min
Jun 1, 6:23 PM MDT	Mesoscale Discussion	SPC	97 min
Jun 2, 12:56 AM MDT	Special Weather Statement	BOU	34 min
Jun 2, 2:40 AM MDT	Areal Flood Advisory	BOU	3 hr
Jun 3, 3:50 PM MDT	Mesoscale Discussion	SPC	115 min
Jun 7, 12:32 PM MDT	Fire Weather Watch	BOU	25 hr
Jun 8, 1:03 PM MDT	Red Flag Warning	BOU	32 hr
Jun 8, 2:32 PM MDT	Tornado Watch	SPC	6 hr
Jun 8, 5:14 PM MDT	Mesoscale Discussion	SPC	91 min
Jun 8, 5:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	50 min
Jun 8, 5:57 PM MDT	Severe Thunderstorm Warning	BOU	30 min
Jun 8, 6:09 PM MDT	Severe Thunderstorm Warning	BOU	51 min
Jun 8, 6:27 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	48 min
Jun 8, 6:58 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 8, 8:00 PM MDT	Severe Thunderstorm Warning	BOU	30 min
Jun 9, 12:34 AM MDT	Fire Weather Watch	BOU	24 hr
Jun 20, 1:11 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 20, 1:50 PM MDT	Tornado Watch	SPC	7 hr
Jun 20, 2:13 PM MDT	Severe Thunderstorm Warning	BOU	47 min
Jun 20, 3:02 PM MDT	Special Weather Statement	BOU	43 min
Jun 20, 3:03 PM MDT	Special Weather Statement	BOU	27 min
Jun 20, 3:21 PM MDT	Special Weather Statement	BOU	39 min
Jun 20, 10:54 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 21, 12:46 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 21, 1:19 PM MDT	Special Weather Statement	BOU	26 min
Jun 21, 1:38 PM MDT	Special Weather Statement	BOU	37 min
Jun 21, 1:53 PM MDT	Severe Thunderstorm Warning	BOU	37 min
Jun 21, 2:25 PM MDT	Severe Thunderstorm Warning	BOU	35 min
Jun 21, 2:33 PM MDT	Mesoscale Discussion	SPC	117 min
Jun 21, 4:50 PM MDT	Severe Thunderstorm Warning	BOU	40 min
Jun 21, 4:52 PM MDT	Severe Thunderstorm Warning	BOU	22 min
Jun 21, 7:13 PM MDT	Severe Thunderstorm Warning	BOU	32 min
Jun 21, 8:43 PM MDT	Severe Thunderstorm Warning	BOU	32 min
Jun 22, 11:29 AM MDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 1:30 PM MDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 22, 4:21 PM MDT	Mesoscale Discussion	SPC	114 min
Jun 22, 5:22 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	45 min
Jun 22, 5:29 PM MDT	Tornado Warning	BOU	31 min
Jun 22, 5:54 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	51 min
Jun 22, 6:20 PM MDT	Mesoscale Discussion	SPC	85 min
Jun 22, 6:26 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BOU	49 min
Jun 22, 6:45 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	45 min
Jun 22, 7:00 PM MDT	Tornado Warning	BOU	19 min
Jun 22, 7:22 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	38 min
Jun 23, 4:39 PM MDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 23, 5:33 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	42 min
Jun 23, 5:58 PM MDT	Mesoscale Discussion	SPC	62 min
Jun 23, 6:09 PM MDT	Severe Thunderstorm Warning	BOU	22 min
Jun 23, 6:51 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	38 min
Jun 23, 7:12 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	18 min
Jun 23, 7:29 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	27 min
Jun 23, 8:45 PM MDT	Severe Thunderstorm Warning	BOU	25 min
Jun 23, 9:03 PM MDT	Mesoscale Discussion	SPC	87 min
Jun 23, 10:39 PM MDT	Severe Thunderstorm Warning	BOU	42 min
Jun 23, 10:52 PM MDT	Mesoscale Discussion	SPC	53 min
Jun 24, 2:20 PM MDT	Mesoscale Discussion	SPC	115 min
Jun 24, 3:50 PM MDT	Tornado Watch	SPC	8 hr
Jun 24, 3:59 PM MDT	Severe Thunderstorm Warning	BOU	46 min
Jun 24, 4:21 PM MDT	Tornado Warning	BOU	39 min
Jun 24, 4:52 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jun 24, 4:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	35 min
Jun 24, 5:15 PM MDT	Severe Thunderstorm Warning	BOU	45 min
Jun 24, 5:42 PM MDT	Severe Thunderstorm Warning	BOU	33 min
Jun 24, 6:00 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	30 min
Jun 24, 6:17 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	43 min
Jun 24, 6:47 PM MDT	Mesoscale Discussion	SPC	58 min
Jun 24, 6:54 PM MDT	Tornado Warning	BOU	36 min
Jun 24, 7:24 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	36 min
Jun 24, 8:59 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	33 min
Jun 24, 9:06 PM MDT	Severe Thunderstorm Warning	BOU	39 min
Jun 24, 9:07 PM MDT	Areal Flood Advisory	BOU	2 hr
Jun 24, 9:36 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	39 min
Jun 24, 9:59 PM MDT	Areal Flood Advisory	BOU	3 hr
Jun 24, 10:03 PM MDT	Severe Thunderstorm Warning	BOU	42 min
Jun 24, 10:11 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BOU	33 min
Jun 24, 10:26 PM MDT	Mesoscale Discussion	SPC	64 min
Jun 26, 2:13 PM MDT	Mesoscale Discussion	SPC	62 min
Jun 26, 2:37 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 26, 3:15 PM MDT	Severe Thunderstorm Warning	BOU	30 min
Jun 26, 5:52 PM MDT	Mesoscale Discussion	SPC	113 min
Jul 2, 4:23 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 2, 5:22 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jul 2, 5:54 PM MDT	Severe Thunderstorm Warning	BOU	51 min
Jul 3, 7:38 PM MDT	Severe Thunderstorm Warning	BOU	52 min
Jul 3, 7:47 PM MDT	Severe Thunderstorm Warning	BOU	32 min
Jul 3, 7:50 PM MDT	Tornado Warning	BOU	25 min
Jul 3, 8:21 PM MDT	Areal Flood Advisory	BOU	56 min
Jul 3, 8:36 PM MDT	Flash Flood Warning	BOU	5 hr
Jul 3, 11:36 PM MDT	Severe Thunderstorm Warning	BOU	24 min
Jul 3, 11:50 PM MDT	Mesoscale Discussion	SPC	55 min
Jul 3, 11:55 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BOU	35 min
Jul 4, 12:21 AM MDT	Flash Flood Warning	BOU	4 hr
Jul 4, 12:30 AM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	30 min
Jul 4, 1:08 AM MDT	Special Weather Statement	BOU	52 min
Jul 4, 1:39 AM MDT	Areal Flood Advisory	BOU	3 hr
Jul 4, 5:39 PM MDT	Special Weather Statement	BOU	51 min
Jul 4, 5:40 PM MDT	Special Weather Statement	BOU	50 min
Jul 4, 5:53 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	37 min
Jul 7, 5:19 PM MDT	Special Weather Statement	BOU	41 min
Jul 7, 5:59 PM MDT	Special Weather Statement	BOU	46 min
Jul 8, 1:03 PM MDT	Mesoscale Discussion	SPC	117 min
Jul 8, 1:27 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 8, 6:05 PM MDT	Special Weather Statement	BOU	40 min
Jul 8, 6:22 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jul 8, 6:52 PM MDT	Mesoscale Discussion	SPC	83 min
Jul 8, 6:59 PM MDT	Special Weather Statement	BOU	31 min
Jul 8, 7:07 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jul 9, 1:39 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 9, 3:42 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 9, 5:26 PM MDT	Severe Thunderstorm Warning	BOU	34 min
Jul 9, 5:41 PM MDT	Special Weather Statement	BOU	49 min
Jul 9, 5:44 PM MDT	Severe Thunderstorm Warning	BOU	31 min
Jul 9, 5:48 PM MDT	Severe Thunderstorm Warning	BOU	42 min
Jul 9, 5:50 PM MDT	Mesoscale Discussion	SPC	85 min
Jul 9, 6:07 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jul 10, 7:33 PM MDT	Special Weather Statement	BOU	42 min
Jul 22, 2:19 PM MDT	Mesoscale Discussion	SPC	86 min
Jul 22, 5:43 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 22, 6:41 PM MDT	Severe Thunderstorm Warning	BOU	49 min
Jul 22, 7:44 PM MDT	Severe Thunderstorm Warning	BOU	46 min
Jul 24, 2:51 AM MDT	Heat Advisory	BOU	66 hr
Jul 28, 2:55 AM MDT	Flood Watch	BOU	19 hr
Jul 28, 11:57 AM MDT	Mesoscale Discussion	SPC	2 hr
Jul 28, 1:07 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 28, 2:35 PM MDT	Mesoscale Discussion	SPC	115 min
Jul 28, 3:58 PM MDT	Severe Thunderstorm Warning	BOU	32 min
Jul 28, 4:11 PM MDT	Severe Thunderstorm Warning	BOU	34 min
Jul 28, 4:22 PM MDT	Severe Thunderstorm Warning	BOU	38 min
Jul 28, 4:40 PM MDT	Areal Flood Advisory	BOU	3 hr
Jul 28, 4:45 PM MDT	Severe Thunderstorm Warning	BOU	45 min
Jul 28, 5:00 PM MDT	Areal Flood Advisory	BOU	4 hr
Jul 28, 5:00 PM MDT	Severe Thunderstorm Warning	BOU	30 min
Jul 28, 5:02 PM MDT	Mesoscale Discussion	SPC	88 min
Jul 28, 5:20 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	40 min
Jul 28, 5:50 PM MDT	Special Weather Statement	BOU	40 min
Jul 30, 1:33 PM MDT	Mesoscale Discussion	SPC	117 min
Aug 8, 4:45 PM MDT	Special Weather Statement	BOU	30 min
Aug 8, 5:44 PM MDT	Special Weather Statement	BOU	31 min
Aug 8, 6:15 PM MDT	Special Weather Statement	BOU	30 min
Aug 10, 2:51 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 10, 3:44 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 10, 6:31 PM MDT	Mesoscale Discussion	SPC	119 min
Aug 12, 1:33 PM MDT	Mesoscale Discussion	SPC	117 min
Aug 12, 2:32 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 12, 3:58 PM MDT	Special Weather Statement	BOU	32 min
Aug 12, 4:04 PM MDT	Severe Thunderstorm Warning	BOU	26 min
Aug 12, 4:28 PM MDT	Special Weather Statement	BOU	32 min
Aug 12, 5:10 PM MDT	Special Weather Statement	BOU	35 min
Aug 12, 5:26 PM MDT	Severe Thunderstorm Warning	BOU	49 min
Aug 12, 5:45 PM MDT	Areal Flood Advisory	BOU	3 hr
Aug 13, 2:18 AM MDT	Flood Watch	BOU	22 hr
Aug 13, 2:41 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 13, 5:14 PM MDT	Severe Thunderstorm Warning	BOU	31 min
Aug 13, 5:41 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	34 min
Aug 13, 6:28 PM MDT	Severe Thunderstorm Warning	BOU	32 min
Aug 13, 6:52 PM MDT	Areal Flood Advisory	BOU	3 hr
Aug 13, 7:30 PM MDT	Mesoscale Discussion	SPC	90 min
Aug 13, 7:49 PM MDT	Areal Flood Advisory	BOU	3 hr
Aug 14, 10:40 AM MDT	Flood Watch	BOU	11 hr
Aug 14, 2:05 PM MDT	Mesoscale Discussion	SPC	115 min
Aug 14, 5:02 PM MDT	Special Weather Statement	BOU	28 min
Aug 14, 5:24 PM MDT	Special Weather Statement	BOU	51 min
Aug 14, 5:53 PM MDT	Areal Flood Advisory	BOU	3 hr
Aug 14, 6:14 PM MDT	Special Weather Statement	BOU	46 min
Aug 14, 7:00 PM MDT	Special Weather Statement	BOU	45 min
Aug 14, 7:10 PM MDT	Areal Flood Advisory	BOU	2 hr
Aug 14, 7:37 PM MDT	Flash Flood Warning	BOU	100 min
Aug 15, 1:06 AM MDT	Flood Watch	BOU	19 hr
Aug 15, 1:28 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 15, 2:04 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 15, 5:08 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 15, 7:27 PM MDT	Areal Flood Advisory	BOU	2 hr
Aug 16, 12:33 PM MDT	Mesoscale Discussion	SPC	117 min
Aug 16, 2:06 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 16, 3:50 PM MDT	Mesoscale Discussion	SPC	115 min
Aug 16, 6:45 PM MDT	Areal Flood Advisory	BOU	2 hr
Aug 16, 7:24 PM MDT	Special Weather Statement	BOU	51 min
Aug 17, 4:35 PM MDT	Special Weather Statement	BOU	40 min
Aug 18, 10:51 PM MDT	Severe Thunderstorm Warning	BOU	39 min
Aug 21, 8:13 PM MDT	Severe Thunderstorm Watch	SPC	3 hr
Aug 21, 10:16 PM MDT	Mesoscale Discussion	SPC	89 min
Aug 23, 2:21 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 25, 2:53 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 26, 1:43 PM MDT	Mesoscale Discussion	SPC	3 hr
Aug 26, 3:53 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 26, 5:42 PM MDT	Severe Thunderstorm Warning	BOU	44 min
Aug 26, 6:25 PM MDT	Severe Thunderstorm Warning	BOU	50 min
Aug 26, 7:08 PM MDT	Severe Thunderstorm Warning	BOU	32 min
Aug 26, 7:29 PM MDT	Severe Thunderstorm Warning	BOU	14 min
Aug 26, 7:35 PM MDT	Areal Flood Advisory	BOU	3 hr
Aug 28, 7:02 PM MDT	Special Weather Statement	BOU	43 min
Aug 28, 7:35 PM MDT	Special Weather Statement	BOU	40 min
Sep 5, 2:34 PM MDT	Mesoscale Discussion	SPC	116 min
Sep 7, 5:39 PM MDT	Severe Thunderstorm Warning	BOU	51 min
Sep 18, 3:41 PM MDT	Special Weather Statement	BOU	34 min
Sep 18, 3:45 PM MDT	Mesoscale Discussion	SPC	2 hr
Sep 18, 4:22 PM MDT	Special Weather Statement	BOU	38 min
Sep 19, 1:43 PM MDT	Mesoscale Discussion	SPC	3 hr
Sep 19, 2:54 PM MDT	Special Weather Statement	BOU	51 min
Sep 20, 12:49 PM MDT	Mesoscale Discussion	SPC	2 hr
Sep 20, 8:01 PM MDT	Mesoscale Discussion	SPC	119 min
Sep 20, 10:52 PM MDT	Mesoscale Discussion	SPC	83 min

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	86
Tornado Warning	12
Severe Thunderstorm Watch	18
Tornado Watch	3
Mesoscale Discussion	59
Special Weather Statement	41
Flooding
Flash Flood Warning	4
Flood Watch	4
Areal Flood Advisory	15
Winter
Winter Weather Advisory	1
Heat
Heat Advisory	1
Cold
Freeze Warning	2
Freeze Watch	3
Cold Weather Advisory	1
Frost Advisory	1
Wind and dust
High Wind Warning	3
High Wind Watch	3
Fire
Red Flag Warning	22
Fire Weather Watch	20

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2025

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.