Alert archive / Colorado / Sedgwick County

Weather alerts in Sedgwick County, Colorado, 2025

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

Sedgwick County and its neighbors

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

Alerts
136
Warnings
30
Watches
31
Advisories
10
Busiest month
June32 alerts
Busiest day
August 2, 20256 alerts

Over time

By month

Warning verification

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

Sedgwick County, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings15847%5100%31 min
Flash flood warnings00

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 17, 2:02 PM MSTCold Weather AdvisoryBOU4 days
Feb 10, 2:11 PM MSTWinter Weather AdvisoryBOU43 hr
Feb 12, 2:21 AM MSTCold Weather AdvisoryBOU30 hr
Feb 16, 2:05 PM MSTExtreme Cold WatchBOU13 hr
Feb 17, 2:58 AM MSTExtreme Cold WarningBOU3 days
Mar 2, 2:34 AM MSTWinter Storm WatchBOU33 hr
Mar 3, 2:16 AM MSTBlizzard WarningBOU25 hr
Mar 3, 2:20 AM MSTHigh Wind WarningBOU39 hr
Mar 9, 2:03 PM MDTRed Flag WarningBOU29 hr
Mar 12, 1:05 PM MDTRed Flag WarningBOU30 hr
Mar 12, 2:35 PM MDTHigh Wind WatchBOU23 hr
Mar 13, 1:47 PM MDTHigh Wind WarningBOU30 hr
Mar 15, 1:40 PM MDTFire Weather WatchBOU13 hr
Mar 16, 2:48 AM MDTRed Flag WarningBOU16 hr
Mar 16, 1:54 PM MDTRed Flag WarningBOU29 hr
Mar 17, 12:38 PM MDTWinter Weather AdvisoryBOU44 hr
Mar 18, 3:09 AM MDTHigh Wind WarningBOU33 hr
Mar 18, 11:32 PM MDTMesoscale DiscussionSPC4 hr
Mar 20, 2:30 AM MDTFire Weather WatchBOU24 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 20, 12:58 PM MDTRed Flag WarningBOU30 hr
Apr 25, 8:07 PM MDTDense Fog AdvisoryBOU14 hr
Apr 27, 2:29 PM MDTMesoscale DiscussionSPC2 hr
Apr 27, 3:56 PM MDTTornado WatchSPC9 hr
May 14, 3:56 PM MDTMesoscale DiscussionSPC94 min
May 14, 4:33 PM MDTSevere Thunderstorm WatchSPC5 hr
May 14, 5:22 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU38 min
May 14, 5:58 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU47 min
May 14, 6:42 PM MDTMesoscale DiscussionSPC93 min
May 14, 6:43 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU47 min
May 18, 1:12 PM MDTMesoscale DiscussionSPC3 hr
May 18, 1:57 PM MDTTornado WatchSPC6 hr
May 18, 4:14 PM MDTMesoscale DiscussionSPC2 hr
May 18, 4:59 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU46 min
May 23, 12:53 PM MDTMesoscale DiscussionSPC3 hr
May 23, 2:59 PM MDTSevere Thunderstorm WatchSPC8 hr
May 23, 4:09 PM MDTMesoscale DiscussionSPC2 hr
Jun 2, 1:14 PM MDTMesoscale DiscussionSPC2 hr
Jun 2, 2:12 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 2, 4:55 PM MDTMesoscale DiscussionSPC2 hr
Jun 11, 5:32 PM MDTMesoscale DiscussionSPC88 min
Jun 11, 6:58 PM MDTSevere Thunderstorm WarningBOU26 min
Jun 12, 2:53 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 12, 5:08 PM MDTMesoscale DiscussionSPC97 min
Jun 13, 1:56 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 13, 7:02 PM MDTMesoscale DiscussionSPC58 min
Jun 13, 8:14 PM MDTSevere Thunderstorm WarningBOU31 min
Jun 13, 8:46 PM MDTSpecial Weather StatementBOU29 min
Jun 14, 12:57 PM MDTMesoscale DiscussionSPC93 min
Jun 15, 2:49 PM MDTMesoscale DiscussionSPC116 min
Jun 15, 4:47 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 15, 6:54 PM MDTMesoscale DiscussionSPC96 min
Jun 16, 4:11 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 16, 6:16 PM MDTMesoscale DiscussionSPC89 min
Jun 17, 4:56 AM MDTMesoscale DiscussionSPC64 min
Jun 17, 3:59 PM MDTSpecial Weather StatementBOU46 min
Jun 17, 4:08 PM MDTSevere Thunderstorm WarningBOU22 min
Jun 18, 1:51 PM MDTHeat AdvisoryBOU3 days
Jun 24, 1:09 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 24, 4:05 PM MDTMesoscale DiscussionSPC115 min
Jun 25, 3:42 PM MDTMesoscale DiscussionSPC93 min
Jun 25, 8:50 PM MDTSpecial Weather StatementBOU25 min
Jun 27, 1:45 PM MDTMesoscale DiscussionSPC2 hr
Jun 28, 5:18 PM MDTMesoscale DiscussionSPC87 min
Jun 28, 5:35 PM MDTSpecial Weather StatementBOU40 min
Jun 28, 5:48 PM MDTSpecial Weather StatementBOU42 min
Jun 29, 12:52 PM MDTMesoscale DiscussionSPC113 min
Jun 29, 1:45 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 29, 9:10 PM MDTMesoscale DiscussionSPC65 min
Jul 1, 3:43 PM MDTMesoscale DiscussionSPC92 min
Jul 1, 7:57 PM MDTSpecial Weather StatementBOU33 min
Jul 4, 4:49 PM MDTMesoscale DiscussionSPC86 min
Jul 6, 1:17 PM MDTSevere Thunderstorm WatchSPC9 hr
Jul 6, 3:31 PM MDTSevere Thunderstorm WarningBOU44 min
Jul 6, 5:03 PM MDTMesoscale DiscussionSPC87 min
Jul 7, 1:23 PM MDTMesoscale DiscussionSPC2 hr
Jul 7, 1:49 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 7, 4:28 PM MDTMesoscale DiscussionSPC92 min
Jul 7, 4:59 PM MDTSpecial Weather StatementBOU46 min
Jul 7, 5:29 PM MDTSevere Thunderstorm WarningBOU31 min
Jul 8, 4:29 PM MDTMesoscale DiscussionSPC2 hr
Jul 10, 2:29 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 11, 11:57 AM MDTFlood WatchBOU11 hr
Jul 11, 2:21 PM MDTSpecial Weather StatementBOU24 min
Jul 11, 2:36 PM MDTMesoscale DiscussionSPC114 min
Jul 11, 4:17 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 11, 7:32 PM MDTMesoscale DiscussionSPC88 min
Jul 19, 1:25 PM MDTMesoscale DiscussionSPC2 hr
Jul 19, 8:45 PM MDTSpecial Weather StatementBOU45 min
Jul 26, 2:48 PM MDTMesoscale DiscussionSPC57 min
Jul 26, 5:54 PM MDTSpecial Weather StatementBOU51 min
Jul 26, 6:16 PM MDTMesoscale DiscussionSPC89 min
Jul 26, 6:51 PM MDTSpecial Weather StatementBOU24 min
Jul 31, 8:27 PM MDTSpecial Weather StatementBOU48 min
Aug 1, 2:46 PM MDTTornado WatchSPC7 hr
Aug 1, 7:46 PM MDTSevere Thunderstorm WarningBOU44 min
Aug 1, 8:19 PM MDTMesoscale DiscussionSPC86 min
Aug 1, 8:24 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU66 min
Aug 2, 1:36 PM MDTMesoscale DiscussionSPC114 min
Aug 2, 3:01 PM MDTSevere Thunderstorm WatchSPC8 hr
Aug 2, 5:01 PM MDTMesoscale DiscussionSPC89 min
Aug 3, 3:44 PM MDTMesoscale DiscussionSPC2 hr
Aug 3, 5:07 PM MDTSpecial Weather StatementBOU23 min
Aug 3, 5:38 PM MDTSpecial Weather StatementBOU37 min
Aug 4, 2:07 PM MDTMesoscale DiscussionSPC113 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, 3:26 PM MDTSevere Thunderstorm Warning Considerable damage threatBOU49 min
Aug 9, 4:30 PM MDTMesoscale DiscussionSPC2 hr
Aug 9, 5:02 PM MDTSevere Thunderstorm WarningBOU23 min
Aug 9, 6:12 PM MDTSevere Thunderstorm WarningBOU17 min
Aug 10, 12:15 PM MDTSevere Thunderstorm WatchSPC10 hr
Aug 10, 7:29 PM MDTMesoscale DiscussionSPC2 hr
Aug 14, 5:30 PM MDTMesoscale DiscussionSPC2 hr
Aug 18, 4:25 PM MDTSevere Thunderstorm WatchSPC4 hr
Aug 23, 10:30 PM MDTSevere Thunderstorm WarningBOU45 min
Aug 28, 7:31 AM MDTSpecial Weather StatementBOU59 min
Aug 29, 1:13 PM MDTMesoscale DiscussionSPC2 hr
Sep 1, 2:49 AM MDTDense Fog AdvisoryBOU5 hr
Sep 9, 4:49 PM MDTMesoscale DiscussionSPC86 min
Sep 11, 2:47 PM MDTMesoscale DiscussionSPC118 min
Sep 16, 1:26 PM MDTMesoscale DiscussionSPC2 hr
Sep 16, 2:05 PM MDTSevere Thunderstorm WatchSPC7 hr
Sep 16, 4:31 PM MDTMesoscale DiscussionSPC89 min
Sep 20, 4:13 AM MDTSpecial Weather StatementBOU92 min
Oct 9, 2:39 AM MDTDense Fog AdvisoryBOU7 hr
Oct 17, 1:34 PM MDTFreeze WatchBOU13 hr
Oct 18, 2:06 AM MDTFreeze WarningBOU30 hr
Dec 16, 1:51 AM MSTHigh Wind WarningBOU58 hr
Dec 17, 1:35 AM MSTHigh Wind WatchBOU13 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.