Alert archive / Colorado / Morgan County

Weather alerts in Morgan County, Colorado, 2025

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

Morgan County and its neighbors

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

Alerts
229
Warnings
77
Watches
32
Advisories
24
Busiest month
June68 alerts
Busiest day
June 17, 202512 alerts

Over time

By month

Warning verification

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

0 of 5 tornado warnings covering Morgan County in 2025 had a tornado report inside them; 0 of 2 tornado reports fell inside a warning.

Morgan County, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings50100%20%
Severe thunderstorm warnings562163%2886%22 min
Flash flood warnings10100%0

Each office's whole area, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Denver/Boulder, CO: tornado warnings321069%2556%13 min
NWS Denver/Boulder, CO: severe thunderstorm warnings36312665%36975%20 min
NWS Denver/Boulder, CO: flash flood warnings22291%560%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.

IssuedProductOfficeLasted
Jan 3, 1:36 PM MSTDense Fog AdvisoryBOU20 hr
Jan 3, 1:49 PM MSTWinter Weather AdvisoryBOU49 hr
Jan 7, 8:22 PM MSTDense Fog AdvisoryBOU14 hr
Jan 17, 2:02 PM MSTCold Weather AdvisoryBOU4 days
Jan 29, 10:41 AM MSTWinter Weather AdvisoryBOU27 hr
Feb 10, 2:11 PM MSTWinter Weather AdvisoryBOU43 hr
Feb 12, 2:21 AM MSTCold Weather AdvisoryBOU30 hr
Feb 17, 2:58 AM MSTCold Weather AdvisoryBOU3 days
Feb 18, 1:45 PM MSTWinter Weather AdvisoryBOU15 hr
Mar 3, 2:20 AM MSTHigh Wind WatchBOU10 hr
Mar 3, 2:20 AM MSTHigh Wind WarningBOU39 hr
Mar 12, 2:35 PM MDTHigh Wind WatchBOU23 hr
Mar 13, 1:47 PM MDTHigh Wind WarningBOU30 hr
Mar 16, 1:54 PM MDTRed Flag WarningBOU29 hr
Mar 17, 12:38 PM MDTWinter Weather AdvisoryBOU44 hr
Mar 17, 7:00 PM MDTRed Flag WarningBOU24 hr
Mar 18, 11:32 PM MDTMesoscale DiscussionSPC4 hr
Mar 21, 2:28 AM MDTFire Weather WatchBOU13 hr
Mar 21, 3:09 PM MDTRed Flag WarningBOU29 hr
Apr 8, 2:01 PM MDTRed Flag WarningBOU29 hr
Apr 10, 2:31 AM MDTFire Weather WatchBOU36 hr
Apr 11, 2:45 PM MDTRed Flag WarningBOU29 hr
Apr 20, 12:58 PM MDTRed Flag WarningBOU30 hr
Apr 24, 2:45 PM MDTMesoscale DiscussionSPC2 hr
Apr 25, 2:15 PM MDTFire Weather WatchBOU24 hr
Apr 26, 1:58 PM MDTRed Flag WarningBOU30 hr
May 14, 3:56 PM MDTMesoscale DiscussionSPC94 min
May 14, 4:02 PM MDTSevere Thunderstorm WarningBOU43 min
May 14, 4:14 PM MDTSevere Thunderstorm WarningBOU46 min
May 14, 4:33 PM MDTSevere Thunderstorm WatchSPC5 hr
May 14, 4:45 PM MDTSevere Thunderstorm WarningBOU45 min
May 18, 1:12 PM MDTMesoscale DiscussionSPC3 hr
May 18, 1:57 PM MDTTornado WatchSPC6 hr
May 18, 2:08 PM MDTTornado WarningBOU37 min
May 18, 2:38 PM MDTSevere Thunderstorm WarningBOU37 min
May 18, 2:45 PM MDTSevere Thunderstorm WarningBOU45 min
May 18, 3:00 PM MDTSevere Thunderstorm WarningBOU45 min
May 18, 3:11 PM MDTTornado WarningBOU34 min
May 23, 12:53 PM MDTMesoscale DiscussionSPC3 hr
May 23, 2:59 PM MDTSevere Thunderstorm WatchSPC8 hr
May 24, 7:13 PM MDTDense Fog AdvisoryBOU10 hr
May 27, 4:32 PM MDTSpecial Weather StatementBOU43 min
May 27, 4:37 PM MDTMesoscale DiscussionSPC53 min
May 27, 4:44 PM MDTSevere Thunderstorm WarningBOU46 min
May 28, 11:53 AM MDTMesoscale DiscussionSPC3 hr
Jun 1, 6:36 PM MDTSpecial Weather StatementBOU24 min
Jun 2, 1:14 PM MDTMesoscale DiscussionSPC2 hr
Jun 2, 2:12 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 2, 8:12 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU33 min
Jun 4, 6:11 PM MDTSpecial Weather StatementBOU49 min
Jun 5, 12:30 PM MDTMesoscale DiscussionSPC2 hr
Jun 5, 1:39 PM MDTSevere Thunderstorm WatchSPC8 hr
Jun 5, 1:45 PM MDTSpecial Weather StatementBOU45 min
Jun 5, 1:59 PM MDTSevere Thunderstorm WarningBOU46 min
Jun 5, 2:35 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU40 min
Jun 5, 3:11 PM MDTSevere Thunderstorm Warning Destructive damage threatBOU49 min
Jun 6, 12:39 PM MDTMesoscale DiscussionSPC96 min
Jun 11, 4:19 PM MDTSpecial Weather StatementBOU41 min
Jun 12, 2:04 PM MDTMesoscale DiscussionSPC116 min
Jun 12, 2:53 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 12, 5:30 PM MDTSevere Thunderstorm WarningBOU38 min
Jun 12, 5:51 PM MDTSevere Thunderstorm WarningBOU23 min
Jun 13, 12:41 PM MDTMesoscale DiscussionSPC2 hr
Jun 13, 1:56 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 13, 4:22 PM MDTSevere Thunderstorm WarningBOU38 min
Jun 13, 5:07 PM MDTSevere Thunderstorm WarningBOU38 min
Jun 13, 5:38 PM MDTSpecial Weather StatementBOU37 min
Jun 13, 5:49 PM MDTSevere Thunderstorm WarningBOU26 min
Jun 13, 5:52 PM MDTSevere Thunderstorm WarningBOU38 min
Jun 13, 6:18 PM MDTSevere Thunderstorm WarningBOU27 min
Jun 14, 12:57 PM MDTMesoscale DiscussionSPC93 min
Jun 14, 2:43 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 14, 6:43 PM MDTSevere Thunderstorm WarningBOU32 min
Jun 14, 7:11 PM MDTSevere Thunderstorm WarningBOU34 min
Jun 14, 7:14 PM MDTSevere Thunderstorm WarningBOU46 min
Jun 14, 7:44 PM MDTSevere Thunderstorm WarningBOU46 min
Jun 14, 8:02 PM MDTTornado Warning Tornado observedBOU28 min
Jun 15, 2:49 PM MDTMesoscale DiscussionSPC116 min
Jun 15, 4:26 PM MDTSpecial Weather StatementBOU34 min
Jun 15, 4:39 PM MDTSevere Thunderstorm WarningBOU36 min
Jun 15, 4:47 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 15, 5:27 PM MDTSevere Thunderstorm WarningBOU33 min
Jun 15, 6:54 PM MDTMesoscale DiscussionSPC96 min
Jun 16, 5:12 PM MDTMesoscale DiscussionSPC93 min
Jun 16, 5:43 PM MDTSpecial Weather StatementBOU32 min
Jun 17, 3:22 AM MDTSevere Thunderstorm WarningBOU38 min
Jun 17, 3:45 AM MDTSevere Thunderstorm WatchSPC4 hr
Jun 17, 3:48 AM MDTSevere Thunderstorm Warning Destructive damage threatBOU42 min
Jun 17, 4:15 AM MDTSevere Thunderstorm Warning Considerable damage threatBOU45 min
Jun 17, 4:26 AM MDTSevere Thunderstorm Warning Considerable damage threatBOU34 min
Jun 17, 4:56 AM MDTMesoscale DiscussionSPC64 min
Jun 17, 4:58 AM MDTSevere Thunderstorm WarningBOU32 min
Jun 17, 10:08 AM MDTMesoscale DiscussionSPC2 hr
Jun 17, 10:48 AM MDTSevere Thunderstorm WatchSPC8 hr
Jun 17, 12:55 PM MDTMesoscale DiscussionSPC2 hr
Jun 17, 2:25 PM MDTMesoscale DiscussionSPC95 min
Jun 17, 2:39 PM MDTSpecial Weather StatementBOU51 min
Jun 18, 1:51 PM MDTHeat AdvisoryBOU3 days
Jun 22, 9:26 PM MDTSevere Thunderstorm WarningBOU30 min
Jun 22, 9:28 PM MDTSevere Thunderstorm WarningBOU29 min
Jun 22, 9:55 PM MDTSevere Thunderstorm WarningBOU40 min
Jun 24, 1:09 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 24, 3:07 PM MDTSpecial Weather StatementBOU38 min
Jun 24, 3:25 PM MDTSevere Thunderstorm WarningBOU50 min
Jun 24, 4:05 PM MDTMesoscale DiscussionSPC115 min
Jun 24, 4:14 PM MDTSevere Thunderstorm WarningBOU46 min
Jun 25, 3:42 PM MDTMesoscale DiscussionSPC93 min
Jun 25, 6:44 PM MDTSpecial Weather StatementBOU31 min
Jun 27, 2:09 PM MDTSpecial Weather StatementBOU36 min
Jun 27, 2:40 PM MDTSpecial Weather StatementBOU35 min
Jun 29, 12:52 PM MDTMesoscale DiscussionSPC113 min
Jun 29, 1:45 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 29, 5:09 PM MDTMesoscale DiscussionSPC2 hr
Jul 1, 5:25 PM MDTSpecial Weather StatementBOU50 min
Jul 4, 4:19 PM MDTSpecial Weather StatementBOU26 min
Jul 4, 4:49 PM MDTMesoscale DiscussionSPC86 min
Jul 5, 1:04 PM MDTMesoscale DiscussionSPC116 min
Jul 5, 5:01 PM MDTSpecial Weather StatementBOU44 min
Jul 6, 12:38 PM MDTMesoscale DiscussionSPC3 hr
Jul 6, 1:17 PM MDTSevere Thunderstorm WatchSPC9 hr
Jul 6, 3:52 PM MDTTornado Warning Tornado observedBOU12 min
Jul 6, 5:03 PM MDTMesoscale DiscussionSPC87 min
Jul 6, 5:33 PM MDTSpecial Weather StatementBOU27 min
Jul 6, 6:05 PM MDTSpecial Weather StatementBOU55 min
Jul 7, 1:23 PM MDTMesoscale DiscussionSPC2 hr
Jul 7, 1:49 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 7, 2:40 PM MDTSpecial Weather StatementBOU50 min
Jul 7, 3:53 PM MDTSpecial Weather StatementBOU22 min
Jul 7, 4:04 PM MDTSpecial Weather StatementBOU26 min
Jul 7, 10:16 PM MDTSevere Thunderstorm WarningBOU44 min
Jul 7, 10:59 PM MDTSpecial Weather StatementBOU31 min
Jul 8, 5:03 PM MDTSpecial Weather StatementBOU27 min
Jul 10, 1:43 PM MDTMesoscale DiscussionSPC2 hr
Jul 10, 2:29 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 10, 5:27 PM MDTSpecial Weather StatementBOU33 min
Jul 10, 5:56 PM MDTMesoscale DiscussionSPC2 hr
Jul 11, 11:57 AM MDTFlood WatchBOU11 hr
Jul 11, 2:36 PM MDTMesoscale DiscussionSPC114 min
Jul 11, 4:17 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 11, 6:12 PM MDTSevere Thunderstorm WarningBOU48 min
Jul 11, 6:33 PM MDTSevere Thunderstorm WarningBOU42 min
Jul 11, 6:40 PM MDTSevere Thunderstorm WarningBOU40 min
Jul 11, 6:54 PM MDTAreal Flood AdvisoryBOU36 min
Jul 11, 7:05 PM MDTAreal Flood AdvisoryBOU25 min
Jul 11, 7:19 PM MDTFlash Flood WarningBOU3 hr
Jul 11, 7:32 PM MDTMesoscale DiscussionSPC88 min
Jul 11, 7:41 PM MDTAreal Flood AdvisoryBOU3 hr
Jul 11, 10:15 PM MDTAreal Flood WarningBOU2 hr
Jul 16, 1:36 PM MDTMesoscale DiscussionSPC84 min
Jul 16, 2:45 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 16, 5:01 PM MDTMesoscale DiscussionSPC59 min
Jul 16, 5:14 PM MDTSevere Thunderstorm WarningBOU31 min
Jul 16, 5:36 PM MDTTornado WarningBOU24 min
Jul 21, 6:35 PM MDTAreal Flood AdvisoryBOU115 min
Jul 23, 2:43 PM MDTMesoscale DiscussionSPC2 hr
Jul 24, 5:12 PM MDTSevere Thunderstorm WarningBOU63 min
Jul 25, 4:09 PM MDTMesoscale DiscussionSPC96 min
Jul 26, 2:48 PM MDTMesoscale DiscussionSPC57 min
Jul 29, 10:02 PM MDTSpecial Weather StatementBOU28 min
Jul 31, 1:49 PM MDTMesoscale DiscussionSPC56 min
Jul 31, 2:59 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 31, 5:32 PM MDTMesoscale DiscussionSPC88 min
Jul 31, 6:25 PM MDTSevere Thunderstorm WarningBOU50 min
Jul 31, 7:55 PM MDTSpecial Weather StatementBOU50 min
Jul 31, 11:16 PM MDTAreal Flood AdvisoryBOU12 hr
Aug 1, 1:51 PM MDTMesoscale DiscussionSPC114 min
Aug 1, 2:46 PM MDTTornado WatchSPC7 hr
Aug 2, 1:36 PM MDTMesoscale DiscussionSPC114 min
Aug 2, 3:01 PM MDTSevere Thunderstorm WatchSPC8 hr
Aug 2, 4:36 PM MDTSevere Thunderstorm WarningBOU32 min
Aug 2, 5:01 PM MDTMesoscale DiscussionSPC89 min
Aug 2, 5:07 PM MDTSevere Thunderstorm WarningBOU38 min
Aug 4, 2:07 PM MDTMesoscale DiscussionSPC113 min
Aug 4, 2:47 PM MDTSpecial Weather StatementBOU43 min
Aug 4, 3:03 PM MDTSevere Thunderstorm WatchSPC6 hr
Aug 9, 12:53 PM MDTMesoscale DiscussionSPC3 hr
Aug 9, 1:52 PM MDTSevere Thunderstorm WatchSPC12 hr
Aug 9, 2:56 PM MDTSevere Thunderstorm WarningBOU49 min
Aug 9, 3:42 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU48 min
Aug 9, 4:54 PM MDTSevere Thunderstorm WarningBOU36 min
Aug 9, 5:04 PM MDTSevere Thunderstorm WarningBOU15 min
Aug 9, 5:06 PM MDTSevere Thunderstorm WarningBOU25 min
Aug 10, 11:46 AM MDTMesoscale DiscussionSPC59 min
Aug 10, 12:15 PM MDTSevere Thunderstorm WatchSPC10 hr
Aug 10, 3:19 PM MDTSevere Thunderstorm WarningBOU41 min
Aug 10, 3:53 PM MDTMesoscale DiscussionSPC2 hr
Aug 10, 3:57 PM MDTSevere Thunderstorm WarningBOU48 min
Aug 10, 4:30 PM MDTSevere Thunderstorm Warning Destructive damage threatBOU33 min
Aug 10, 4:39 PM MDTAreal Flood AdvisoryBOU3 hr
Aug 10, 4:44 PM MDTAreal Flood AdvisoryBOU3 hr
Aug 10, 4:58 PM MDTSevere Thunderstorm WarningBOU19 min
Aug 10, 5:00 PM MDTSevere Thunderstorm WarningBOU21 min
Aug 10, 7:29 PM MDTMesoscale DiscussionSPC2 hr
Aug 14, 4:50 PM MDTSpecial Weather StatementBOU40 min
Aug 14, 5:30 PM MDTMesoscale DiscussionSPC2 hr
Aug 14, 5:44 PM MDTSpecial Weather StatementBOU46 min
Aug 14, 6:19 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU41 min
Aug 14, 6:37 PM MDTSpecial Weather StatementBOU38 min
Aug 15, 2:49 PM MDTMesoscale DiscussionSPC116 min
Aug 15, 5:01 PM MDTSpecial Weather StatementBOU44 min
Aug 15, 5:48 PM MDTSpecial Weather StatementBOU42 min
Aug 18, 2:20 PM MDTMesoscale DiscussionSPC115 min
Aug 18, 3:34 PM MDTSpecial Weather StatementBOU41 min
Aug 18, 3:54 PM MDTSpecial Weather StatementBOU36 min
Aug 18, 4:37 PM MDTSpecial Weather StatementBOU38 min
Aug 25, 6:17 PM MDTAreal Flood AdvisoryBOU2 hr
Aug 27, 2:13 PM MDTMesoscale DiscussionSPC2 hr
Aug 27, 3:38 PM MDTSpecial Weather StatementBOU52 min
Aug 28, 7:31 AM MDTSpecial Weather StatementBOU59 min
Aug 28, 1:06 PM MDTMesoscale DiscussionSPC114 min
Aug 28, 4:19 PM MDTSpecial Weather StatementBOU41 min
Aug 28, 4:56 PM MDTSpecial Weather StatementBOU49 min
Aug 28, 5:05 PM MDTSevere Thunderstorm WarningBOU25 min
Aug 28, 5:28 PM MDTSevere Thunderstorm WarningBOU47 min
Sep 7, 8:16 PM MDTSpecial Weather StatementBOU44 min
Sep 11, 2:47 PM MDTMesoscale DiscussionSPC118 min
Oct 4, 2:55 PM MDTMesoscale DiscussionSPC2 hr
Oct 12, 2:17 AM MDTDense Fog AdvisoryBOU6 hr
Oct 15, 4:56 PM MDTMesoscale DiscussionSPC2 hr
Oct 17, 1:34 PM MDTFreeze WatchBOU13 hr
Oct 18, 2:06 AM MDTFreeze WarningBOU30 hr
Oct 19, 1:32 PM MDTRed Flag WarningBOU28 hr
Oct 20, 5:37 AM MDTHigh Wind WarningBOU5 hr
Oct 27, 6:28 AM MDTDense Fog AdvisoryBOU3 hr
Nov 22, 4:45 AM MSTDense Fog AdvisoryBOU5 hr
Dec 3, 9:22 PM MSTDense Fog AdvisoryBOU13 hr
Dec 16, 1:51 AM MSTHigh Wind WatchBOU24 hr
Dec 16, 1:51 AM MSTHigh Wind WarningBOU58 hr
Dec 18, 2:31 AM MSTRed Flag WarningBOU14 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20242026

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.