Alert archive / Montana / Fergus County
Weather alerts in Fergus County, Montana, 2024
163 weather alerts in 2024, 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 2024. Tap one for its archive.
- Alerts
- 163
- Warnings
- 41
- Watches
- 26
- Advisories
- 38
- Busiest month
- August40 alerts
- Busiest day
- August 20, 202410 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, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 7 | 50% | 8 | 50% | 19 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Great Falls, MT: severe thunderstorm warnings | 139 | 54 | 61% | 152 | 57% | 19 min |
| NWS Great Falls, MT: flash flood warnings | 2 | 0 | 100% | 1 | 0% |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 1:38 PM MST | High Wind Watch | TFX | 3 days |
| Jan 9, 2:12 AM MST | Wind Chill Advisory | TFX | 63 hr |
| Jan 10, 12:55 AM MST | Wind Chill Warning | TFX | 5 days |
| Jan 10, 12:55 AM MST | Wind Chill Advisory | TFX | 6 days |
| Jan 10, 2:05 PM MST | Winter Weather Advisory | TFX | 44 hr |
| Jan 14, 1:29 PM MST | Wind Chill Advisory | TFX | 44 hr |
| Jan 15, 3:07 AM MST | Winter Storm Watch | TFX | 36 hr |
| Jan 16, 2:41 AM MST | Winter Storm Warning | TFX | 56 hr |
| Jan 17, 3:22 AM MST | Wind Chill Advisory | TFX | 57 hr |
| Jan 19, 2:37 PM MST | Winter Weather Advisory | TFX | 44 hr |
| Jan 21, 1:22 PM MST | Winter Weather Advisory | TFX | 22 hr |
| Jan 22, 3:07 PM MST | Dense Fog Advisory | TFX | 46 hr |
| Feb 1, 1:28 PM MST | Winter Weather Advisory | TFX | 70 hr |
| Feb 5, 8:02 PM MST | Dense Fog Advisory | TFX | 33 hr |
| Feb 6, 2:44 AM MST | Winter Storm Warning | TFX | 56 hr |
| Feb 6, 2:44 AM MST | Winter Weather Advisory | TFX | 4 days |
| Feb 11, 12:07 PM MST | Winter Weather Advisory | TFX | 71 hr |
| Feb 13, 12:58 PM MST | Winter Weather Advisory | TFX | 64 hr |
| Feb 16, 8:42 PM MST | Wind Chill Advisory | TFX | 12 hr |
| Feb 22, 2:34 AM MST | High Wind Warning | TFX | 62 hr |
| Feb 23, 2:57 AM MST | High Wind Watch | TFX | 33 hr |
| Feb 24, 12:03 PM MST | High Wind Warning | TFX | 53 hr |
| Feb 24, 1:35 PM MST | Winter Weather Advisory | TFX | 57 hr |
| Feb 26, 1:34 AM MST | Wind Chill Advisory | TFX | 32 hr |
| Feb 27, 2:19 AM MST | High Wind Warning | TFX | 3 days |
| Mar 1, 1:03 PM MST | Winter Weather Advisory | TFX | 39 hr |
| Mar 2, 2:38 PM MST | Special Weather Statement | TFX | 82 min |
| Mar 20, 1:34 PM MDT | Winter Storm Watch | TFX | 48 hr |
| Mar 22, 1:29 PM MDT | Winter Storm Warning | TFX | 44 hr |
| Mar 22, 1:29 PM MDT | Winter Weather Advisory | TFX | 68 hr |
| Mar 30, 1:48 PM MDT | Dense Fog Advisory | TFX | 22 hr |
| Apr 4, 1:58 PM MDT | Winter Storm Watch | TFX | 24 hr |
| Apr 5, 2:34 AM MDT | Winter Weather Advisory | TFX | 66 hr |
| Apr 5, 1:57 PM MDT | Winter Storm Warning | TFX | 48 hr |
| Apr 5, 9:31 PM MDT | Special Weather Statement | TFX | 44 min |
| Apr 14, 2:42 AM MDT | Winter Weather Advisory | TFX | 3 days |
| Apr 14, 7:51 PM MDT | Special Weather Statement | TFX | 39 min |
| Apr 29, 1:35 PM MDT | Winter Weather Advisory | TFX | 3 days |
| May 4, 1:52 PM MDT | Winter Storm Watch | TFX | 37 hr |
| May 5, 1:40 PM MDT | Winter Storm Warning | TFX | 3 days |
| May 5, 2:00 PM MDT | High Wind Watch | TFX | 13 hr |
| May 5, 2:00 PM MDT | High Wind Warning | TFX | 64 hr |
| May 6, 2:07 PM MDT | Winter Weather Advisory | TFX | 46 hr |
| May 7, 9:58 AM MDT | Areal Flood Advisory | TFX | 48 hr |
| May 9, 9:48 AM MDT | Flood Watch | TFX | 3 days |
| May 17, 2:19 PM MDT | Special Weather Statement | TFX | 86 min |
| May 20, 1:49 PM MDT | Special Weather Statement | TFX | 41 min |
| May 20, 3:02 PM MDT | Special Weather Statement | TFX | 28 min |
| May 21, 2:42 PM MDT | Winter Storm Warning | TFX | 50 hr |
| May 31, 12:27 PM MDT | High Wind Watch | TFX | 50 hr |
| Jun 2, 2:25 PM MDT | High Wind Warning | TFX | 70 hr |
| Jun 15, 12:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 2:27 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 2:42 PM MDT | Special Weather Statement | TFX | 33 min |
| Jun 16, 2:25 AM MDT | Winter Weather Advisory | TFX | 58 hr |
| Jun 20, 1:38 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Jun 20, 2:26 PM MDT | Severe Thunderstorm Warning | TFX | 49 min |
| Jun 20, 3:14 PM MDT | Severe Thunderstorm Warning | TFX | 46 min |
| Jun 20, 3:56 PM MDT | Special Weather Statement | TFX | 34 min |
| Jun 20, 4:25 PM MDT | Special Weather Statement | TFX | 35 min |
| Jun 20, 4:31 PM MDT | Severe Thunderstorm Warning | TFX | 74 min |
| Jun 20, 5:38 PM MDT | Areal Flood Advisory | TFX | 3 hr |
| Jun 21, 11:35 AM MDT | Mesoscale Discussion | SPC | 115 min |
| Jun 21, 12:39 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 1:22 PM MDT | Severe Thunderstorm Warning | TFX | 38 min |
| Jun 21, 1:53 PM MDT | Severe Thunderstorm Warning | TFX | 52 min |
| Jun 21, 2:35 PM MDT | Severe Thunderstorm Warning | TFX | 55 min |
| Jun 21, 2:58 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Jun 21, 3:26 PM MDT | Special Weather Statement | TFX | 34 min |
| Jun 21, 5:27 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Jun 21, 7:00 PM MDT | Special Weather Statement | TFX | 30 min |
| Jun 21, 7:31 PM MDT | Special Weather Statement | TFX | 44 min |
| Jun 21, 9:52 PM MDT | Special Weather Statement | TFX | 23 min |
| Jun 28, 6:38 AM MDT | High Wind Warning | TFX | 9 hr |
| Jun 30, 2:12 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 3:37 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 11, 9:06 PM MDT | Special Weather Statement | TFX | 24 min |
| Jul 11, 9:32 PM MDT | Special Weather Statement | TFX | 28 min |
| Jul 11, 10:06 PM MDT | Special Weather Statement | TFX | 39 min |
| Jul 12, 12:07 PM MDT | Red Flag Warning | TFX | 36 hr |
| Jul 18, 1:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 21, 3:04 PM MDT | Fire Weather Watch | TFX | 71 hr |
| Jul 21, 3:11 PM MDT | Heat Advisory | TFX | 11 hr |
| Jul 22, 2:40 AM MDT | Heat Advisory | TFX | 4 days |
| Jul 22, 2:35 PM MDT | Red Flag Warning | TFX | 3 days |
| Jul 24, 4:56 PM MDT | Special Weather Statement | TFX | 49 min |
| Jul 25, 12:02 AM MDT | High Wind Warning | TFX | 3 hr |
| Jul 25, 2:25 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 25, 3:47 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 25, 4:25 PM MDT | Special Weather Statement | TFX | 35 min |
| Jul 25, 4:57 PM MDT | Special Weather Statement | TFX | 33 min |
| Jul 25, 5:07 PM MDT | Severe Thunderstorm Warning | TFX | 53 min |
| Aug 3, 10:51 PM MDT | Special Weather Statement | TFX | 39 min |
| Aug 6, 1:57 PM MDT | Special Weather Statement | TFX | 33 min |
| Aug 6, 2:15 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 6, 2:30 PM MDT | Special Weather Statement | TFX | 45 min |
| Aug 6, 5:01 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 4:13 PM MDT | Special Weather Statement | TFX | 32 min |
| Aug 12, 3:48 PM MDT | Severe Thunderstorm Warning | TFX | 27 min |
| Aug 12, 4:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 5:31 PM MDT | Special Weather Statement | TFX | 29 min |
| Aug 12, 6:09 PM MDT | Special Weather Statement | TFX | 36 min |
| Aug 12, 6:10 PM MDT | Special Weather Statement | TFX | 35 min |
| Aug 13, 4:41 PM MDT | Special Weather Statement | TFX | 34 min |
| Aug 16, 10:24 PM MDT | Special Weather Statement | TFX | 51 min |
| Aug 19, 12:30 AM MDT | Special Weather Statement | TFX | 45 min |
| Aug 19, 1:23 AM MDT | Special Weather Statement | TFX | 37 min |
| Aug 19, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 19, 6:27 PM MDT | Severe Thunderstorm Warning | TFX | 33 min |
| Aug 19, 7:49 PM MDT | Severe Thunderstorm Warning | TFX | 41 min |
| Aug 19, 8:12 PM MDT | Severe Thunderstorm Warning | TFX | 48 min |
| Aug 19, 8:31 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Aug 19, 8:38 PM MDT | Special Weather Statement | TFX | 52 min |
| Aug 19, 8:54 PM MDT | Special Weather Statement | TFX | 51 min |
| Aug 20, 2:11 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 2:39 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 20, 5:54 PM MDT | Special Weather Statement | TFX | 51 min |
| Aug 20, 5:57 PM MDT | Special Weather Statement | TFX | 33 min |
| Aug 20, 6:25 PM MDT | Special Weather Statement | TFX | 35 min |
| Aug 20, 6:46 PM MDT | Special Weather Statement | TFX | 29 min |
| Aug 20, 7:02 PM MDT | Special Weather Statement | TFX | 28 min |
| Aug 20, 9:05 PM MDT | Special Weather Statement | TFX | 55 min |
| Aug 21, 6:26 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 21, 6:51 PM MDT | Special Weather Statement | TFX | 24 min |
| Aug 21, 7:15 PM MDT | Special Weather Statement | TFX | 45 min |
| Aug 21, 7:45 PM MDT | Special Weather Statement | TFX | 30 min |
| Aug 21, 8:05 PM MDT | Severe Thunderstorm Warning | TFX | 50 min |
| Aug 23, 6:39 AM MDT | Red Flag Warning | TFX | 15 hr |
| Aug 23, 2:54 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 23, 5:08 PM MDT | Special Weather Statement | TFX | 67 min |
| Aug 23, 5:23 PM MDT | Severe Thunderstorm Warning | TFX | 67 min |
| Aug 23, 6:16 PM MDT | Severe Thunderstorm Warning | TFX | 59 min |
| Sep 3, 2:47 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Sep 16, 1:10 PM MDT | High Wind Watch | TFX | 24 hr |
| Sep 17, 1:38 PM MDT | High Wind Warning | TFX | 30 hr |
| Sep 17, 1:41 PM MDT | Flood Watch | TFX | 29 hr |
| Sep 17, 3:42 PM MDT | Special Weather Statement | TFX | 48 min |
| Sep 17, 4:24 PM MDT | Special Weather Statement | TFX | 36 min |
| Sep 18, 1:52 PM MDT | Areal Flood Advisory | TFX | 5 hr |
| Sep 18, 6:20 PM MDT | Areal Flood Advisory | TFX | 16 hr |
| Sep 29, 2:03 AM MDT | High Wind Warning | TFX | 26 hr |
| Oct 1, 9:59 PM MDT | High Wind Warning | TFX | 7 hr |
| Oct 2, 12:57 AM MDT | High Wind Watch | TFX | 37 hr |
| Oct 3, 1:34 PM MDT | High Wind Warning | TFX | 37 hr |
| Nov 2, 1:45 PM MDT | Winter Storm Watch | TFX | 50 hr |
| Nov 3, 1:38 AM MDT | High Wind Warning | TFX | 69 hr |
| Nov 3, 1:57 PM MST | Winter Storm Warning | TFX | 63 hr |
| Nov 14, 2:52 AM MST | Winter Weather Advisory | TFX | 53 hr |
| Nov 14, 1:37 PM MST | High Wind Watch | TFX | 37 hr |
| Nov 15, 12:23 PM MST | High Wind Warning | TFX | 53 hr |
| Nov 21, 2:43 AM MST | Winter Weather Advisory | TFX | 44 hr |
| Dec 4, 1:22 PM MST | High Wind Watch | TFX | 58 hr |
| Dec 4, 8:54 PM MST | Dense Fog Advisory | TFX | 14 hr |
| Dec 6, 12:35 AM MST | High Wind Warning | TFX | 64 hr |
| Dec 6, 1:08 PM MST | Winter Weather Advisory | TFX | 3 days |
| Dec 10, 12:33 AM MST | Winter Weather Advisory | TFX | 28 hr |
| Dec 16, 1:26 PM MST | High Wind Watch | TFX | 37 hr |
| Dec 17, 9:38 AM MST | High Wind Warning | TFX | 40 hr |
| Dec 17, 5:43 PM MST | Dense Fog Advisory | TFX | 4 hr |
| Dec 27, 1:46 PM MST | Winter Storm Watch | TFX | 24 hr |
| Dec 28, 1:50 PM MST | Winter Storm Warning | TFX | 45 hr |
| Dec 28, 1:50 PM MST | Winter Weather Advisory | TFX | 47 hr |
| Dec 30, 1:06 PM MST | Winter Weather Advisory | TFX | 20 hr |
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 | 14 |
| Severe Thunderstorm Watch | 8 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 44 |
| Flooding | |
| Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 8 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 21 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 15 |
| High Wind Watch | 9 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.