Alert archive / Wyoming / Platte County

Weather alerts in Platte County, Wyoming, 2025

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

Platte County and its neighbors

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

Alerts
256
Warnings
111
Watches
52
Advisories
17
Busiest month
June64 alerts
Busiest day
June 17, 202514 alerts

Over time

By month

Warning verification

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

Platte County, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings501766%1782%16 min
Flash flood warnings110%1100%6 min

Each office's whole area, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Cheyenne, WY: tornado warnings14564%1145%9 min
NWS Cheyenne, WY: severe thunderstorm warnings31513856%27081%22 min
NWS Cheyenne, WY: flash flood warnings5420%8100%12 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 7, 12:58 PM MSTHigh Wind WarningCYS31 hr
Jan 7, 1:18 PM MSTWinter Weather AdvisoryCYS52 hr
Jan 9, 2:23 AM MSTHigh Wind WatchCYS24 hr
Jan 9, 2:51 AM MSTSnow Squall WarningCYS39 min
Jan 9, 12:51 PM MSTHigh Wind WarningCYS48 hr
Jan 10, 2:38 AM MSTHigh Wind WatchCYS26 hr
Jan 10, 2:03 PM MSTWinter Weather AdvisoryCYS27 hr
Jan 15, 2:21 AM MSTHigh Wind WatchCYS24 hr
Jan 16, 2:37 AM MSTHigh Wind WarningCYS32 hr
Jan 16, 2:51 AM MSTWinter Weather AdvisoryCYS53 hr
Jan 17, 12:25 PM MSTCold Weather AdvisoryCYS59 hr
Jan 19, 1:59 AM MSTExtreme Cold WarningCYS54 hr
Jan 19, 3:00 AM MSTHigh Wind WatchCYS47 hr
Jan 19, 12:49 PM MSTCold Weather AdvisoryCYS43 hr
Jan 20, 1:36 AM MSTHigh Wind WarningCYS54 hr
Jan 22, 1:52 PM MSTHigh Wind WatchCYS12 hr
Jan 22, 2:18 PM MSTSpecial Weather StatementCYS117 min
Jan 23, 1:57 AM MSTHigh Wind WarningCYS34 hr
Jan 23, 1:56 PM MSTWinter Weather AdvisoryCYS63 hr
Jan 26, 1:30 AM MSTHigh Wind WatchCYS24 hr
Jan 27, 1:05 AM MSTHigh Wind WarningCYS12 hr
Jan 30, 1:32 AM MSTHigh Wind WatchCYS36 hr
Jan 30, 1:22 PM MSTHigh Wind WarningCYS61 hr
Feb 1, 2:04 PM MSTHigh Wind WatchCYS13 hr
Feb 2, 2:50 AM MSTHigh Wind WarningCYS32 hr
Feb 4, 2:39 AM MSTHigh Wind WatchCYS24 hr
Feb 4, 12:42 PM MSTHigh Wind WarningCYS32 hr
Feb 6, 2:52 AM MSTHigh Wind WatchCYS32 hr
Feb 6, 2:24 PM MSTHigh Wind WarningCYS37 hr
Feb 12, 2:31 AM MSTHigh Wind WatchCYS53 hr
Feb 12, 1:17 PM MSTHigh Wind WarningCYS43 hr
Feb 15, 1:26 PM MSTWinter Weather AdvisoryCYS4 days
Feb 17, 3:43 PM MSTSnow Squall WarningCYS32 min
Feb 17, 4:18 PM MSTSnow Squall WarningCYS27 min
Feb 21, 1:30 AM MSTHigh Wind WatchCYS35 hr
Feb 21, 1:45 PM MSTHigh Wind WarningCYS4 days
Feb 28, 12:42 AM MSTHigh Wind WarningCYS5 hr
Mar 3, 2:18 AM MSTHigh Wind WatchCYS9 hr
Mar 3, 11:05 AM MSTWinter Weather AdvisoryCYS26 hr
Mar 3, 11:12 AM MSTHigh Wind WarningCYS30 hr
Mar 4, 1:31 PM MSTWinter Storm WatchCYS37 hr
Mar 5, 2:23 PM MSTWinter Storm WarningCYS53 hr
Mar 8, 12:28 PM MSTHigh Wind WatchCYS53 hr
Mar 9, 3:25 AM MDTHigh Wind WarningCYS39 hr
Mar 11, 1:22 PM MDTRed Flag WarningCYS6 hr
Mar 13, 3:14 AM MDTHigh Wind WatchCYS42 hr
Mar 15, 1:18 AM MDTHigh Wind WatchCYS12 hr
Mar 15, 1:31 PM MDTHigh Wind WarningCYS52 hr
Mar 16, 8:43 PM MDTFire Weather WatchCYS5 hr
Mar 17, 1:34 AM MDTRed Flag WarningCYS16 hr
Mar 17, 2:11 PM MDTWinter Weather AdvisoryCYS40 hr
Mar 19, 2:30 AM MDTHigh Wind WatchCYS17 hr
Mar 19, 7:02 PM MDTHigh Wind WarningCYS48 hr
Mar 20, 1:17 PM MDTHigh Wind WarningCYS30 hr
Mar 21, 2:49 AM MDTHigh Wind WatchCYS24 hr
Mar 21, 2:18 PM MDTHigh Wind WarningCYS34 hr
Mar 23, 3:04 AM MDTHigh Wind WatchCYS23 hr
Mar 23, 3:04 AM MDTHigh Wind WarningCYS39 hr
Mar 26, 2:14 PM MDTFire Weather WatchCYS13 hr
Mar 27, 3:13 AM MDTRed Flag WarningCYS16 hr
Mar 31, 6:11 PM MDTSpecial Weather StatementCYS49 min
Apr 16, 2:19 AM MDTWinter Storm WatchCYS24 hr
Apr 17, 2:38 AM MDTWinter Storm WarningCYS39 hr
Apr 17, 2:38 AM MDTWinter Weather AdvisoryCYS39 hr
Apr 21, 1:39 AM MDTHigh Wind WarningCYS16 hr
Apr 25, 12:34 AM MDTDense Fog AdvisoryCYS19 hr
Apr 27, 2:29 AM MDTDense Fog AdvisoryCYS7 hr
May 11, 5:20 PM MDTSpecial Weather StatementCYS25 min
May 18, 1:24 PM MDTSpecial Weather StatementCYS36 min
May 18, 2:30 PM MDTSpecial Weather StatementCYS30 min
May 18, 3:02 PM MDTSpecial Weather StatementCYS28 min
May 18, 3:28 PM MDTSevere Thunderstorm WarningCYS47 min
May 18, 4:16 PM MDTSpecial Weather StatementCYS44 min
May 23, 7:43 PM MDTSpecial Weather StatementCYS32 min
May 23, 7:58 PM MDTSevere Thunderstorm WarningCYS47 min
Jun 1, 4:48 PM MDTSpecial Weather StatementCYS42 min
Jun 1, 5:31 PM MDTSpecial Weather StatementCYS44 min
Jun 1, 5:32 PM MDTSpecial Weather StatementCYS43 min
Jun 1, 5:50 PM MDTSpecial Weather StatementCYS40 min
Jun 1, 6:13 PM MDTSpecial Weather StatementCYS47 min
Jun 2, 1:14 PM MDTMesoscale DiscussionSPC2 hr
Jun 2, 2:12 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 2, 3:35 PM MDTSpecial Weather StatementCYS40 min
Jun 2, 3:49 PM MDTSevere Thunderstorm WarningCYS41 min
Jun 2, 4:25 PM MDTSevere Thunderstorm Warning Considerable damage threatCYS50 min
Jun 2, 4:50 PM MDTSevere Thunderstorm WarningCYS40 min
Jun 2, 4:55 PM MDTMesoscale DiscussionSPC2 hr
Jun 2, 5:19 PM MDTFlash Flood WarningCYS3 hr
Jun 12, 2:04 PM MDTMesoscale DiscussionSPC116 min
Jun 12, 3:35 PM MDTSevere Thunderstorm Warning Considerable damage threatCYS40 min
Jun 12, 3:49 PM MDTSevere Thunderstorm WarningCYS41 min
Jun 12, 4:47 PM MDTSevere Thunderstorm WarningCYS43 min
Jun 12, 5:04 PM MDTSevere Thunderstorm WarningCYS41 min
Jun 12, 5:08 PM MDTMesoscale DiscussionSPC97 min
Jun 12, 5:46 PM MDTSevere Thunderstorm WarningCYS44 min
Jun 12, 6:29 PM MDTSevere Thunderstorm WarningCYS46 min
Jun 12, 6:31 PM MDTSevere Thunderstorm WarningCYS30 min
Jun 13, 12:41 PM MDTMesoscale DiscussionSPC2 hr
Jun 13, 1:56 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 13, 2:32 PM MDTSevere Thunderstorm WarningCYS43 min
Jun 13, 3:05 PM MDTSevere Thunderstorm WarningCYS55 min
Jun 13, 3:59 PM MDTSevere Thunderstorm WarningCYS28 min
Jun 14, 12:57 PM MDTMesoscale DiscussionSPC93 min
Jun 14, 2:43 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 15, 2:22 PM MDTSpecial Weather StatementCYS38 min
Jun 15, 2:49 PM MDTMesoscale DiscussionSPC116 min
Jun 15, 3:01 PM MDTSpecial Weather StatementCYS44 min
Jun 16, 4:30 PM MDTSevere Thunderstorm WarningCYS60 min
Jun 16, 9:48 PM MDTSevere Thunderstorm WarningCYS42 min
Jun 16, 9:57 PM MDTSevere Thunderstorm WarningCYS63 min
Jun 16, 10:29 PM MDTSevere Thunderstorm WarningCYS46 min
Jun 16, 10:55 PM MDTSpecial Weather StatementCYS50 min
Jun 17, 4:30 AM MDTSpecial Weather StatementCYS30 min
Jun 17, 10:48 AM MDTSevere Thunderstorm WatchSPC8 hr
Jun 17, 11:56 AM MDTSevere Thunderstorm WarningCYS49 min
Jun 17, 12:43 PM MDTSevere Thunderstorm WarningCYS47 min
Jun 17, 12:55 PM MDTMesoscale DiscussionSPC2 hr
Jun 17, 1:01 PM MDTSevere Thunderstorm WarningCYS44 min
Jun 17, 1:23 PM MDTSpecial Weather StatementCYS37 min
Jun 17, 1:43 PM MDTSevere Thunderstorm WarningCYS31 min
Jun 17, 3:43 PM MDTSevere Thunderstorm WarningCYS47 min
Jun 17, 4:44 PM MDTSpecial Weather StatementCYS46 min
Jun 22, 2:17 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 24, 12:35 PM MDTMesoscale DiscussionSPC115 min
Jun 25, 2:14 PM MDTSpecial Weather StatementCYS46 min
Jun 25, 3:42 PM MDTMesoscale DiscussionSPC93 min
Jun 28, 8:11 PM MDTSpecial Weather StatementCYS49 min
Jun 28, 10:29 PM MDTSpecial Weather StatementCYS46 min
Jun 29, 12:28 PM MDTMesoscale DiscussionSPC2 hr
Jun 29, 1:45 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 29, 4:42 PM MDTSevere Thunderstorm WarningCYS63 min
Jun 29, 5:05 PM MDTSpecial Weather StatementCYS40 min
Jun 29, 5:09 PM MDTMesoscale DiscussionSPC2 hr
Jun 29, 5:36 PM MDTSevere Thunderstorm WarningCYS54 min
Jun 29, 5:48 PM MDTSevere Thunderstorm WarningCYS57 min
Jun 29, 7:09 PM MDTSevere Thunderstorm WarningCYS51 min
Jun 29, 7:41 PM MDTSevere Thunderstorm WarningCYS49 min
Jun 29, 8:26 PM MDTSpecial Weather StatementCYS49 min
Jun 29, 8:39 PM MDTSevere Thunderstorm WarningCYS51 min
Jul 4, 4:49 PM MDTMesoscale DiscussionSPC86 min
Jul 6, 1:17 PM MDTSevere Thunderstorm WatchSPC9 hr
Jul 6, 2:36 PM MDTSevere Thunderstorm WarningCYS39 min
Jul 6, 3:03 PM MDTSevere Thunderstorm WarningCYS27 min
Jul 6, 3:57 PM MDTSpecial Weather StatementCYS33 min
Jul 6, 4:52 PM MDTSevere Thunderstorm WarningCYS38 min
Jul 6, 5:15 PM MDTSevere Thunderstorm WarningCYS30 min
Jul 6, 5:26 PM MDTSevere Thunderstorm WarningCYS24 min
Jul 6, 5:48 PM MDTSevere Thunderstorm WarningCYS42 min
Jul 14, 12:36 PM MDTSpecial Weather StatementCYS39 min
Jul 14, 2:18 PM MDTMesoscale DiscussionSPC117 min
Jul 16, 2:11 AM MDTSpecial Weather StatementCYS34 min
Jul 16, 2:41 AM MDTSpecial Weather StatementCYS49 min
Jul 16, 1:36 PM MDTMesoscale DiscussionSPC84 min
Jul 16, 4:24 PM MDTSpecial Weather StatementCYS36 min
Jul 18, 3:44 PM MDTSpecial Weather StatementCYS31 min
Jul 18, 4:07 PM MDTMesoscale DiscussionSPC113 min
Jul 18, 4:40 PM MDTSevere Thunderstorm WarningCYS35 min
Jul 18, 5:17 PM MDTSpecial Weather StatementCYS43 min
Jul 18, 5:39 PM MDTSpecial Weather StatementCYS36 min
Jul 18, 5:45 PM MDTSpecial Weather StatementCYS30 min
Jul 23, 1:11 PM MDTMesoscale DiscussionSPC2 hr
Jul 24, 1:10 PM MDTSpecial Weather StatementCYS35 min
Jul 24, 1:14 PM MDTSevere Thunderstorm WarningCYS31 min
Jul 24, 1:37 PM MDTSpecial Weather StatementCYS38 min
Jul 24, 1:41 PM MDTMesoscale DiscussionSPC2 hr
Jul 24, 2:04 PM MDTSpecial Weather StatementCYS26 min
Jul 24, 2:42 PM MDTSpecial Weather StatementCYS33 min
Jul 24, 2:58 PM MDTSpecial Weather StatementCYS32 min
Jul 26, 2:02 AM MDTRed Flag WarningCYS18 hr
Jul 29, 5:22 PM MDTMesoscale DiscussionSPC2 hr
Jul 29, 6:08 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 29, 9:56 PM MDTSevere Thunderstorm WarningCYS49 min
Jul 29, 10:32 PM MDTAreal Flood AdvisoryCYS2 hr
Jul 29, 10:43 PM MDTSevere Thunderstorm WarningCYS47 min
Jul 30, 5:04 PM MDTMesoscale DiscussionSPC2 hr
Jul 31, 1:49 PM MDTMesoscale DiscussionSPC56 min
Jul 31, 2:59 PM MDTSevere Thunderstorm WatchSPC6 hr
Aug 1, 2:46 PM MDTTornado WatchSPC7 hr
Aug 1, 3:08 PM MDTSevere Thunderstorm WarningCYS20 min
Aug 2, 3:23 PM MDTSpecial Weather StatementCYS37 min
Aug 3, 1:08 PM MDTRed Flag WarningCYS6 days
Aug 4, 3:15 PM MDTSpecial Weather StatementCYS45 min
Aug 4, 5:07 PM MDTSevere Thunderstorm WarningCYS38 min
Aug 4, 5:34 PM MDTSpecial Weather StatementCYS26 min
Aug 8, 4:49 PM MDTSpecial Weather StatementCYS56 min
Aug 10, 12:59 PM MDTSpecial Weather StatementCYS31 min
Aug 10, 3:53 PM MDTSpecial Weather StatementCYS52 min
Aug 12, 1:52 PM MDTRed Flag WarningCYS30 hr
Aug 14, 5:23 PM MDTSpecial Weather StatementCYS37 min
Aug 14, 6:00 PM MDTSpecial Weather StatementCYS30 min
Aug 15, 2:49 PM MDTMesoscale DiscussionSPC116 min
Aug 28, 12:59 PM MDTSpecial Weather StatementCYS31 min
Aug 28, 1:06 PM MDTMesoscale DiscussionSPC114 min
Aug 28, 1:25 PM MDTSevere Thunderstorm WarningCYS50 min
Aug 28, 1:54 PM MDTAreal Flood AdvisoryCYS66 min
Aug 28, 2:12 PM MDTSevere Thunderstorm WarningCYS30 min
Aug 28, 2:24 PM MDTAreal Flood AdvisoryCYS115 min
Sep 16, 5:00 PM MDTSpecial Weather StatementCYS45 min
Oct 11, 3:08 AM MDTHigh Wind WatchCYS11 hr
Oct 11, 2:14 PM MDTFreeze WatchCYS13 hr
Oct 11, 2:14 PM MDTHigh Wind WarningCYS28 hr
Oct 12, 3:03 AM MDTFrost AdvisoryCYS30 hr
Oct 14, 9:02 PM MDTDense Fog AdvisoryCYS15 hr
Oct 15, 3:20 PM MDTHigh Wind WatchCYS23 hr
Oct 15, 4:56 PM MDTMesoscale DiscussionSPC2 hr
Oct 15, 6:31 PM MDTSpecial Weather StatementCYS29 min
Oct 15, 6:49 PM MDTSevere Thunderstorm WarningCYS41 min
Oct 15, 7:12 PM MDTSpecial Weather StatementCYS33 min
Oct 15, 7:22 PM MDTSevere Thunderstorm WarningCYS38 min
Oct 15, 7:26 PM MDTSevere Thunderstorm WarningCYS49 min
Oct 15, 7:32 PM MDTSevere Thunderstorm WarningCYS43 min
Oct 15, 7:48 PM MDTSevere Thunderstorm WarningCYS57 min
Oct 15, 8:14 PM MDTSevere Thunderstorm WarningCYS46 min
Oct 15, 8:30 PM MDTSpecial Weather StatementCYS45 min
Oct 16, 1:45 AM MDTHigh Wind WarningCYS52 hr
Oct 18, 1:47 AM MDTHigh Wind WatchCYS12 hr
Oct 18, 1:36 PM MDTHigh Wind WarningCYS49 hr
Oct 19, 2:15 AM MDTHigh Wind WarningCYS34 hr
Oct 26, 2:26 AM MDTHigh Wind WatchCYS18 hr
Oct 26, 7:59 PM MDTHigh Wind WarningCYS22 hr
Oct 31, 2:41 PM MDTHigh Wind WatchCYS22 hr
Nov 1, 12:36 PM MDTHigh Wind WarningCYS26 hr
Nov 5, 1:09 PM MSTHigh Wind WatchCYS28 hr
Nov 5, 9:59 PM MSTHigh Wind WarningCYS25 hr
Nov 7, 2:18 AM MSTHigh Wind WarningCYS18 hr
Nov 9, 1:33 AM MSTHigh Wind WatchCYS12 hr
Nov 9, 1:12 PM MSTHigh Wind WarningCYS48 hr
Nov 13, 1:07 AM MSTHigh Wind WatchCYS12 hr
Nov 13, 12:50 PM MSTHigh Wind WarningCYS40 hr
Nov 23, 12:35 AM MSTHigh Wind WatchCYS13 hr
Nov 23, 1:08 PM MSTHigh Wind WarningCYS48 hr
Nov 30, 1:30 AM MSTHigh Wind WatchCYS23 hr
Dec 1, 12:52 AM MSTHigh Wind WarningCYS40 hr
Dec 3, 1:23 PM MSTHigh Wind WarningCYS45 hr
Dec 5, 10:15 AM MSTHigh Wind WarningCYS28 hr
Dec 6, 2:03 PM MSTHigh Wind WarningCYS24 hr
Dec 7, 2:38 PM MSTHigh Wind WatchCYS4 days
Dec 7, 2:38 PM MSTHigh Wind WarningCYS5 days
Dec 8, 2:53 AM MSTHigh Wind WarningCYS45 hr
Dec 12, 5:10 AM MSTHigh Wind WatchCYS7 hr
Dec 12, 5:10 AM MSTHigh Wind WarningCYS27 hr
Dec 15, 1:00 AM MSTHigh Wind WatchCYS12 hr
Dec 15, 1:00 AM MSTHigh Wind WarningCYS40 hr
Dec 16, 1:38 AM MSTHigh Wind WatchCYS13 hr
Dec 16, 2:50 PM MSTHigh Wind WarningCYS43 hr
Dec 17, 2:52 PM MSTHigh Wind WatchCYS19 hr
Dec 18, 3:04 AM MSTFire Weather WatchCYS8 hr
Dec 18, 10:16 AM MSTHigh Wind WarningCYS46 hr
Dec 18, 10:48 AM MSTRed Flag WarningCYS37 hr
Dec 20, 3:16 PM MSTHigh Wind WarningCYS50 hr
Dec 24, 1:17 AM MSTHigh Wind WatchCYS39 hr
Dec 24, 1:17 AM MSTHigh Wind WarningCYS40 hr
Dec 25, 4:52 PM MSTHigh Wind WarningCYS33 hr
Dec 27, 12:48 PM MSTHigh Wind WarningCYS7 hr
Dec 29, 2:05 PM MSTHigh Wind WarningCYS22 hr
Dec 30, 2:13 AM MSTHigh Wind WatchCYS33 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.