Alert archive / Montana / Fergus County

Weather alerts in Fergus County, Montana, 2025

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

Fergus County and its neighbors

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

Alerts
257
Warnings
84
Watches
29
Advisories
50
Busiest month
July63 alerts
Busiest day
June 15, 202530 alerts

Over time

By month

Warning verification

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

Fergus County, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings531964%4360%26 min
Flash flood warnings20100%0

Each office's whole area, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Great Falls, MT: tornado warnings20100%0
NWS Great Falls, MT: severe thunderstorm warnings1655467%19255%24 min
NWS Great Falls, MT: flash flood warnings5180%2100%32 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 2, 1:30 AM MSTWinter Storm WatchTFX11 hr
Jan 2, 1:30 AM MSTWinter Weather AdvisoryTFX55 hr
Jan 2, 12:47 PM MSTWinter Storm WarningTFX52 hr
Jan 4, 1:31 PM MSTWinter Weather AdvisoryTFX45 hr
Jan 7, 2:21 AM MSTWinter Weather AdvisoryTFX51 hr
Jan 8, 1:37 PM MSTWinter Storm WatchTFX23 hr
Jan 9, 12:59 PM MSTWinter Storm WarningTFX3 days
Jan 9, 12:59 PM MSTWinter Weather AdvisoryTFX3 days
Jan 10, 2:09 AM MSTWinter Weather AdvisoryTFX35 hr
Jan 12, 8:20 PM MSTWinter Weather AdvisoryTFX9 hr
Jan 13, 2:53 AM MSTHigh Wind WatchTFX47 hr
Jan 15, 1:52 AM MSTHigh Wind WarningTFX42 hr
Jan 16, 1:58 AM MSTWinter Weather AdvisoryTFX63 hr
Jan 18, 2:38 AM MSTCold Weather AdvisoryTFX57 hr
Jan 19, 12:12 PM MSTExtreme Cold WarningTFX24 hr
Jan 20, 1:19 PM MSTWinter Storm WatchTFX14 hr
Jan 20, 1:19 PM MSTWinter Weather AdvisoryTFX24 hr
Jan 20, 1:19 PM MSTWinter Weather AdvisoryTFX52 hr
Jan 21, 12:56 PM MSTWinter Storm WarningTFX32 hr
Jan 22, 8:59 AM MSTBlizzard WarningTFX8 hr
Jan 23, 3:23 AM MSTWinter Weather AdvisoryTFX42 hr
Jan 29, 1:30 PM MSTWinter Storm WatchTFX5 days
Jan 30, 2:06 AM MSTHigh Wind WatchTFX23 hr
Jan 31, 1:11 AM MSTHigh Wind WarningTFX39 hr
Feb 1, 2:52 PM MSTWinter Weather AdvisoryTFX43 hr
Feb 2, 1:45 AM MSTCold Weather AdvisoryTFX57 hr
Feb 2, 9:07 AM MSTWinter Storm WarningTFX3 days
Feb 2, 1:51 PM MSTWinter Weather AdvisoryTFX3 days
Feb 6, 1:26 AM MSTWinter Weather AdvisoryTFX39 hr
Feb 7, 8:18 PM MSTCold Weather AdvisoryTFX14 hr
Feb 8, 1:17 AM MSTExtreme Cold WatchTFX49 hr
Feb 9, 2:38 AM MSTExtreme Cold WarningTFX56 hr
Feb 11, 2:23 AM MSTCold Weather AdvisoryTFX33 hr
Feb 12, 1:17 AM MSTCold Weather AdvisoryTFX32 hr
Feb 13, 1:04 PM MSTWinter Weather AdvisoryTFX45 hr
Feb 14, 12:44 PM MSTWinter Storm WatchTFX25 hr
Feb 15, 2:18 AM MSTExtreme Cold WatchTFX35 hr
Feb 15, 1:47 PM MSTWinter Storm WarningTFX52 hr
Feb 15, 1:47 PM MSTWinter Weather AdvisoryTFX3 days
Feb 16, 1:29 PM MSTCold Weather AdvisoryTFX71 hr
Feb 16, 1:29 PM MSTExtreme Cold WarningTFX71 hr
Feb 18, 1:28 PM MSTWinter Weather AdvisoryTFX68 hr
Feb 20, 1:17 AM MSTHigh Wind WatchTFX3 days
Feb 20, 1:39 AM MSTWinter Weather AdvisoryTFX31 hr
Feb 22, 10:11 AM MSTHigh Wind WarningTFX51 hr
Feb 23, 1:00 PM MSTHigh Wind WatchTFX31 hr
Feb 24, 1:24 PM MSTHigh Wind WarningTFX28 hr
Feb 24, 6:01 PM MSTAreal Flood AdvisoryTFX6 hr
Feb 24, 11:36 PM MSTAreal Flood AdvisoryTFX4 days
Feb 28, 12:50 PM MSTAreal Flood AdvisoryTFX57 hr
Mar 3, 2:30 AM MSTWinter Weather AdvisoryTFX31 hr
Mar 7, 11:10 AM MSTHigh Wind WatchTFX38 hr
Mar 8, 1:36 PM MSTHigh Wind WarningTFX47 hr
Mar 21, 2:05 AM MDTHigh Wind WatchTFX24 hr
Mar 23, 2:13 AM MDTHigh Wind WarningTFX40 hr
Mar 28, 2:45 AM MDTWinter Weather AdvisoryTFX57 hr
Mar 31, 2:55 AM MDTWinter Storm WarningTFX51 hr
Mar 31, 2:55 AM MDTWinter Weather AdvisoryTFX51 hr
Apr 3, 3:09 AM MDTDense Fog AdvisoryTFX6 hr
Apr 12, 11:50 AM MDTHigh Wind WarningTFX26 hr
Apr 12, 12:10 PM MDTWinter Weather AdvisoryTFX21 hr
Apr 15, 2:13 PM MDTWinter Weather AdvisoryTFX48 hr
Apr 26, 4:11 PM MDTSpecial Weather StatementTFX34 min
Apr 26, 5:06 PM MDTSpecial Weather StatementTFX39 min
May 10, 5:17 PM MDTSevere Thunderstorm WarningTFX58 min
May 10, 5:21 PM MDTSevere Thunderstorm WarningTFX54 min
May 10, 6:13 PM MDTSevere Thunderstorm WarningTFX62 min
May 10, 6:31 PM MDTSevere Thunderstorm WarningTFX59 min
May 10, 6:53 PM MDTSpecial Weather StatementTFX37 min
May 10, 7:21 PM MDTSevere Thunderstorm WarningTFX24 min
May 10, 7:42 PM MDTSpecial Weather StatementTFX63 min
May 10, 11:10 PM MDTSpecial Weather StatementTFX50 min
May 11, 3:27 PM MDTSevere Thunderstorm WarningTFX63 min
May 11, 3:57 PM MDTMesoscale DiscussionSPC2 hr
May 11, 4:27 PM MDTSevere Thunderstorm WarningTFX93 min
May 11, 5:56 PM MDTSevere Thunderstorm WarningTFX58 min
Jun 10, 7:23 PM MDTSpecial Weather StatementTFX52 min
Jun 10, 7:30 PM MDTSevere Thunderstorm WarningTFX45 min
Jun 11, 3:21 PM MDTSpecial Weather StatementTFX24 min
Jun 11, 3:38 PM MDTAreal Flood AdvisoryTFX3 hr
Jun 11, 3:45 PM MDTSpecial Weather StatementTFX30 min
Jun 11, 4:14 PM MDTSpecial Weather StatementTFX31 min
Jun 12, 6:35 AM MDTDense Fog AdvisoryTFX4 hr
Jun 13, 3:08 AM MDTDense Fog AdvisoryTFX8 hr
Jun 13, 11:45 AM MDTMesoscale DiscussionSPC2 hr
Jun 13, 1:03 PM MDTSevere Thunderstorm WatchSPC10 hr
Jun 13, 3:29 PM MDTSevere Thunderstorm WarningTFX46 min
Jun 13, 4:14 PM MDTSevere Thunderstorm WarningTFX20 min
Jun 14, 5:04 PM MDTMesoscale DiscussionSPC86 min
Jun 14, 5:26 PM MDTSpecial Weather StatementTFX49 min
Jun 14, 5:44 PM MDTSevere Thunderstorm WarningTFX61 min
Jun 14, 6:16 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 14, 6:26 PM MDTSevere Thunderstorm WarningTFX49 min
Jun 14, 6:43 PM MDTSevere Thunderstorm WarningTFX47 min
Jun 14, 6:49 PM MDTSevere Thunderstorm WarningTFX43 min
Jun 14, 7:07 PM MDTSevere Thunderstorm Warning Considerable damage threatTFX53 min
Jun 14, 7:39 PM MDTSevere Thunderstorm WarningTFX50 min
Jun 14, 7:56 PM MDTSevere Thunderstorm Warning Considerable damage threatTFX64 min
Jun 14, 9:03 PM MDTSpecial Weather StatementTFX27 min
Jun 14, 9:33 PM MDTSpecial Weather StatementTFX27 min
Jun 14, 10:46 PM MDTMesoscale DiscussionSPC89 min
Jun 14, 11:09 PM MDTSpecial Weather StatementTFX51 min
Jun 14, 11:21 PM MDTSevere Thunderstorm WarningTFX39 min
Jun 14, 11:56 PM MDTSpecial Weather StatementTFX49 min
Jun 15, 12:09 AM MDTSpecial Weather StatementTFX51 min
Jun 15, 1:02 AM MDTSpecial Weather StatementTFX43 min
Jun 15, 1:17 AM MDTSevere Thunderstorm WarningTFX42 min
Jun 15, 4:33 AM MDTSpecial Weather StatementTFX42 min
Jun 15, 1:13 PM MDTMesoscale DiscussionSPC2 hr
Jun 15, 1:16 PM MDTSpecial Weather StatementTFX29 min
Jun 15, 1:34 PM MDTSpecial Weather StatementTFX26 min
Jun 15, 2:12 PM MDTSevere Thunderstorm Warning Considerable damage threatTFX33 min
Jun 15, 2:15 PM MDTSevere Thunderstorm WatchSPC11 hr
Jun 15, 2:23 PM MDTSevere Thunderstorm WarningTFX26 min
Jun 15, 3:05 PM MDTSevere Thunderstorm WarningTFX25 min
Jun 15, 4:25 PM MDTSevere Thunderstorm WarningTFX21 min
Jun 15, 4:53 PM MDTMesoscale DiscussionSPC97 min
Jun 15, 4:57 PM MDTSevere Thunderstorm Warning Considerable damage threatTFX33 min
Jun 15, 5:15 PM MDTSevere Thunderstorm WarningTFX35 min
Jun 15, 5:29 PM MDTSevere Thunderstorm WarningTFX40 min
Jun 15, 5:41 PM MDTSevere Thunderstorm WarningTFX64 min
Jun 15, 6:04 PM MDTSevere Thunderstorm Warning Considerable damage threatTFX26 min
Jun 15, 6:42 PM MDTSpecial Weather StatementTFX48 min
Jun 15, 6:53 PM MDTSevere Thunderstorm WarningTFX30 min
Jun 15, 7:32 PM MDTSpecial Weather StatementTFX58 min
Jun 19, 7:57 PM MDTSpecial Weather StatementTFX33 min
Jun 26, 6:28 PM MDTSpecial Weather StatementTFX47 min
Jun 26, 7:27 PM MDTSpecial Weather StatementTFX48 min
Jun 27, 1:25 PM MDTMesoscale DiscussionSPC2 hr
Jun 27, 3:28 PM MDTSpecial Weather StatementTFX47 min
Jul 2, 2:42 PM MDTMesoscale DiscussionSPC93 min
Jul 2, 5:16 PM MDTSpecial Weather StatementTFX44 min
Jul 2, 6:04 PM MDTSpecial Weather StatementTFX56 min
Jul 2, 6:47 PM MDTMesoscale DiscussionSPC88 min
Jul 5, 12:51 PM MDTSevere Thunderstorm WatchSPC8 hr
Jul 5, 1:23 PM MDTSevere Thunderstorm WarningTFX52 min
Jul 5, 6:13 PM MDTSpecial Weather StatementTFX62 min
Jul 5, 6:41 PM MDTSpecial Weather StatementTFX64 min
Jul 5, 7:30 PM MDTSpecial Weather StatementTFX60 min
Jul 5, 7:57 PM MDTSevere Thunderstorm WarningTFX33 min
Jul 9, 5:25 PM MDTSevere Thunderstorm WarningTFX50 min
Jul 10, 12:02 AM MDTSpecial Weather StatementTFX28 min
Jul 17, 2:48 PM MDTMesoscale DiscussionSPC117 min
Jul 17, 3:30 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 17, 6:19 PM MDTSevere Thunderstorm WarningTFX56 min
Jul 17, 7:04 PM MDTMesoscale DiscussionSPC86 min
Jul 17, 7:09 PM MDTSevere Thunderstorm WarningTFX51 min
Jul 20, 2:06 PM MDTSpecial Weather StatementTFX24 min
Jul 20, 2:30 PM MDTSpecial Weather StatementTFX45 min
Jul 21, 1:59 PM MDTMesoscale DiscussionSPC2 hr
Jul 21, 8:22 PM MDTSpecial Weather StatementTFX53 min
Jul 21, 10:30 PM MDTSpecial Weather StatementTFX45 min
Jul 21, 10:34 PM MDTSpecial Weather StatementTFX41 min
Jul 22, 1:50 PM MDTSpecial Weather StatementTFX40 min
Jul 22, 2:42 PM MDTSpecial Weather StatementTFX33 min
Jul 25, 6:35 PM MDTSpecial Weather StatementTFX40 min
Jul 25, 7:04 PM MDTSpecial Weather StatementTFX41 min
Jul 25, 7:51 PM MDTSpecial Weather StatementTFX24 min
Jul 26, 4:05 PM MDTMesoscale DiscussionSPC115 min
Jul 26, 5:01 PM MDTSpecial Weather StatementTFX44 min
Jul 26, 5:47 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 26, 5:50 PM MDTSpecial Weather StatementTFX40 min
Jul 26, 6:27 PM MDTSpecial Weather StatementTFX33 min
Jul 26, 6:58 PM MDTSpecial Weather StatementTFX47 min
Jul 27, 5:25 PM MDTMesoscale DiscussionSPC2 hr
Jul 27, 8:15 PM MDTSpecial Weather StatementTFX30 min
Jul 27, 8:46 PM MDTSpecial Weather StatementTFX44 min
Jul 28, 12:07 PM MDTMesoscale DiscussionSPC113 min
Jul 28, 1:16 PM MDTSevere Thunderstorm WatchSPC10 hr
Jul 28, 2:43 PM MDTSevere Thunderstorm WarningTFX47 min
Jul 28, 3:05 PM MDTSevere Thunderstorm WarningTFX19 min
Jul 28, 3:29 PM MDTSpecial Weather StatementTFX46 min
Jul 28, 3:56 PM MDTSevere Thunderstorm WarningTFX64 min
Jul 28, 4:28 PM MDTMesoscale DiscussionSPC92 min
Jul 28, 4:45 PM MDTSpecial Weather StatementTFX45 min
Jul 28, 4:51 PM MDTSevere Thunderstorm WarningTFX54 min
Jul 28, 4:58 PM MDTSpecial Weather StatementTFX77 min
Jul 28, 5:09 PM MDTSevere Thunderstorm WarningTFX51 min
Jul 28, 5:15 PM MDTSevere Thunderstorm WarningTFX60 min
Jul 28, 5:27 PM MDTAreal Flood AdvisoryTFX4 hr
Jul 28, 5:37 PM MDTSpecial Weather StatementTFX38 min
Jul 28, 5:48 PM MDTSevere Thunderstorm WarningTFX42 min
Jul 28, 6:00 PM MDTAreal Flood AdvisoryTFX3 hr
Jul 28, 6:01 PM MDTAreal Flood AdvisoryTFX3 hr
Jul 29, 1:37 PM MDTSpecial Weather StatementTFX68 min
Jul 29, 1:49 PM MDTSevere Thunderstorm WarningTFX56 min
Jul 29, 2:24 PM MDTAreal Flood AdvisoryTFX21 min
Jul 29, 2:41 PM MDTSpecial Weather StatementTFX49 min
Jul 29, 2:45 PM MDTFlash Flood WarningTFX5 hr
Jul 29, 4:51 PM MDTSevere Thunderstorm WarningTFX54 min
Jul 29, 5:13 PM MDTFlash Flood WarningTFX3 hr
Jul 29, 5:41 PM MDTSpecial Weather StatementTFX49 min
Jul 29, 6:30 PM MDTSpecial Weather StatementTFX30 min
Aug 1, 3:07 AM MDTFlood WatchTFX23 hr
Aug 1, 3:42 PM MDTSevere Thunderstorm WarningTFX35 min
Aug 1, 4:25 PM MDTMesoscale DiscussionSPC2 hr
Aug 1, 5:10 PM MDTSevere Thunderstorm WarningTFX35 min
Aug 1, 5:23 PM MDTSpecial Weather StatementTFX37 min
Aug 1, 5:40 PM MDTSpecial Weather StatementTFX50 min
Aug 1, 6:09 PM MDTAreal Flood AdvisoryTFX5 hr
Aug 1, 6:11 PM MDTSpecial Weather StatementTFX34 min
Aug 1, 6:40 PM MDTSpecial Weather StatementTFX50 min
Aug 1, 7:12 PM MDTSpecial Weather StatementTFX33 min
Aug 1, 7:18 PM MDTSpecial Weather StatementTFX42 min
Aug 4, 2:35 PM MDTMesoscale DiscussionSPC115 min
Aug 4, 4:41 PM MDTSevere Thunderstorm WatchSPC6 hr
Aug 4, 5:49 PM MDTSpecial Weather StatementTFX26 min
Aug 4, 6:19 PM MDTSevere Thunderstorm WarningTFX26 min
Aug 4, 6:43 PM MDTMesoscale DiscussionSPC92 min
Aug 5, 4:30 AM MDTSpecial Weather StatementTFX30 min
Aug 5, 4:56 AM MDTSpecial Weather StatementTFX34 min
Aug 5, 5:11 AM MDTSevere Thunderstorm WarningTFX54 min
Aug 7, 2:38 AM MDTSpecial Weather StatementTFX37 min
Aug 7, 3:06 AM MDTSevere Thunderstorm WarningTFX69 min
Aug 7, 2:19 PM MDTSpecial Weather StatementTFX41 min
Aug 7, 2:57 PM MDTSpecial Weather StatementTFX48 min
Aug 7, 3:27 PM MDTSevere Thunderstorm WarningTFX18 min
Aug 16, 5:53 PM MDTSpecial Weather StatementTFX52 min
Aug 17, 4:41 PM MDTSpecial Weather StatementTFX64 min
Aug 17, 5:17 PM MDTSevere Thunderstorm WarningTFX88 min
Aug 20, 5:11 PM MDTSevere Thunderstorm WarningTFX64 min
Aug 20, 6:02 PM MDTMesoscale DiscussionSPC2 hr
Aug 20, 6:09 PM MDTSevere Thunderstorm WarningTFX81 min
Sep 12, 1:21 PM MDTSpecial Weather StatementTFX54 min
Sep 12, 1:32 PM MDTMesoscale DiscussionSPC2 hr
Sep 12, 3:38 PM MDTSpecial Weather StatementTFX52 min
Oct 3, 1:34 PM MDTWinter Weather AdvisoryTFX46 hr
Oct 11, 2:30 AM MDTWinter Weather AdvisoryTFX63 hr
Oct 30, 2:54 AM MDTHigh Wind WatchTFX47 hr
Oct 31, 1:46 PM MDTHigh Wind WarningTFX49 hr
Nov 6, 2:06 AM MSTHigh Wind WatchTFX24 hr
Nov 7, 2:10 AM MSTHigh Wind WarningTFX24 hr
Nov 9, 1:57 PM MSTHigh Wind WarningTFX38 hr
Nov 12, 11:41 PM MSTHigh Wind WarningTFX38 hr
Nov 26, 11:59 PM MSTWinter Storm WarningTFX50 hr
Nov 26, 11:59 PM MSTWinter Weather AdvisoryTFX50 hr
Nov 30, 1:09 PM MSTWinter Weather AdvisoryTFX64 hr
Dec 2, 12:25 PM MSTWinter Storm WarningTFX17 hr
Dec 5, 3:44 AM MSTWinter Weather AdvisoryTFX41 hr
Dec 7, 2:47 AM MSTHigh Wind WatchTFX25 hr
Dec 8, 3:28 AM MSTHigh Wind WarningTFX36 hr
Dec 9, 3:20 AM MSTWinter Weather AdvisoryTFX33 hr
Dec 9, 2:48 PM MSTWinter Storm WatchTFX46 hr
Dec 9, 2:56 PM MSTHigh Wind WarningTFX46 hr
Dec 10, 12:41 PM MSTWinter Weather AdvisoryTFX48 hr
Dec 11, 12:59 PM MSTWinter Storm WarningTFX40 hr
Dec 13, 1:53 PM MSTHigh Wind WatchTFX24 hr
Dec 14, 1:54 PM MSTHigh Wind WatchTFX24 hr
Dec 14, 1:54 PM MSTHigh Wind WarningTFX44 hr
Dec 15, 2:13 PM MSTHigh Wind WarningTFX61 hr
Dec 16, 2:41 PM MSTWinter Weather AdvisoryTFX32 hr
Dec 18, 2:43 AM MSTHigh Wind WatchTFX11 hr
Dec 18, 1:42 PM MSTHigh Wind WarningTFX28 hr
Dec 24, 1:53 PM MSTDense Fog AdvisoryTFX17 hr
Dec 26, 1:55 PM MSTSpecial Weather StatementTFX50 min
Dec 26, 2:17 PM MSTCold Weather AdvisoryTFX45 hr
Dec 26, 3:13 PM MSTSpecial Weather StatementTFX47 min

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.