Alert archive / Montana / Jefferson County
Weather alerts in Jefferson County, Montana, 2026
118 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 118
- Warnings
- 39
- Watches
- 30
- Advisories
- 13
- Busiest month
- July41 alerts
- Busiest day
- July 18, 20267 alerts
Over time
By month
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 7, 8:11 AM MST | Special Weather Statement | TFX | 94 min |
| Jan 7, 9:41 AM MST | Special Weather Statement | TFX | 79 min |
| Jan 7, 9:56 AM MST | Snow Squall Warning | TFX | 34 min |
| Feb 8, 12:34 AM MST | Winter Weather Advisory | TFX | 37 hr |
| Feb 15, 12:24 PM MST | Winter Weather Advisory | TFX | 54 hr |
| Feb 17, 6:40 AM MST | Snow Squall Warning | TFX | 50 min |
| Feb 17, 7:27 AM MST | Snow Squall Warning | TFX | 48 min |
| Feb 17, 11:38 PM MST | Winter Weather Advisory | TFX | 30 hr |
| Feb 22, 11:28 PM MST | High Wind Watch | TFX | 48 hr |
| Feb 24, 1:15 PM MST | High Wind Warning | TFX | 31 hr |
| Feb 24, 8:38 PM MST | Winter Weather Advisory | TFX | 11 hr |
| Mar 3, 11:27 PM MST | Winter Weather Advisory | TFX | 40 hr |
| Mar 5, 11:28 PM MST | High Wind Watch | TFX | 47 hr |
| Mar 5, 11:28 PM MST | High Wind Warning | TFX | 67 hr |
| Mar 9, 3:35 PM MDT | High Wind Watch | TFX | 22 hr |
| Mar 10, 1:24 PM MDT | High Wind Warning | TFX | 53 hr |
| Mar 10, 2:09 PM MDT | Winter Storm Warning | TFX | 4 days |
| Mar 12, 12:46 AM MDT | Winter Storm Watch | TFX | 13 hr |
| Mar 13, 12:48 PM MDT | High Wind Warning | TFX | 32 hr |
| Mar 22, 11:33 PM MDT | High Wind Watch | TFX | 28 hr |
| Mar 23, 11:13 AM MDT | Fire Weather Watch | MSO | 25 hr |
| Mar 23, 1:00 PM MDT | Fire Weather Watch | TFX | 23 hr |
| Mar 24, 3:08 AM MDT | High Wind Warning | TFX | 40 hr |
| Mar 24, 12:28 PM MDT | Red Flag Warning | TFX | 29 hr |
| Mar 24, 12:36 PM MDT | Red Flag Warning | MSO | 32 hr |
| Mar 30, 10:33 PM MDT | Winter Storm Watch | TFX | 24 hr |
| Mar 31, 10:48 PM MDT | Winter Weather Advisory | TFX | 60 hr |
| Apr 4, 12:42 PM MDT | High Wind Watch | TFX | 48 hr |
| Apr 5, 11:56 PM MDT | High Wind Warning | TFX | 59 hr |
| Apr 15, 7:39 PM MDT | Special Weather Statement | TFX | 51 min |
| Apr 21, 2:20 PM MDT | Winter Weather Advisory | TFX | 4 days |
| Apr 21, 2:26 PM MDT | High Wind Warning | TFX | 28 hr |
| May 11, 12:00 PM MDT | Fire Weather Watch | MSO | 23 hr |
| May 12, 10:38 AM MDT | Red Flag Warning | MSO | 34 hr |
| May 12, 12:47 PM MDT | High Wind Watch | TFX | 11 hr |
| May 12, 11:48 PM MDT | High Wind Warning | TFX | 44 hr |
| May 13, 12:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 13, 12:50 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 13, 2:04 PM MDT | Special Weather Statement | TFX | 41 min |
| May 13, 2:59 PM MDT | Severe Thunderstorm Warning | TFX | 46 min |
| May 15, 11:59 AM MDT | Winter Weather Advisory | TFX | 60 hr |
| May 25, 5:46 PM MDT | Mesoscale Discussion | SPC | 119 min |
| May 26, 6:14 PM MDT | Severe Thunderstorm Warning | TFX | 41 min |
| Jun 9, 2:57 PM MDT | Special Weather Statement | TFX | 48 min |
| Jun 25, 2:06 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jun 25, 2:12 PM MDT | Severe Thunderstorm Warning | TFX | 48 min |
| Jun 25, 11:54 PM MDT | Winter Weather Advisory | TFX | 4 days |
| Jul 1, 10:58 AM MDT | Flood Watch | TFX | 10 hr |
| Jul 1, 1:05 PM MDT | Special Weather Statement | TFX | 40 min |
| Jul 1, 1:42 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 1:47 PM MDT | Special Weather Statement | TFX | 43 min |
| Jul 1, 2:51 PM MDT | Flash Flood Warning | TFX | 109 min |
| Jul 5, 1:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 5, 4:24 PM MDT | Special Weather Statement | TFX | 51 min |
| Jul 5, 5:25 PM MDT | Special Weather Statement | TFX | 50 min |
| Jul 8, 4:00 PM MDT | Special Weather Statement | TFX | 30 min |
| Jul 8, 4:26 PM MDT | Special Weather Statement | TFX | 49 min |
| Jul 9, 3:23 AM MDT | Extreme Heat Watch | TFX | 9 hr |
| Jul 9, 12:28 PM MDT | Heat Advisory | TFX | 4 days |
| Jul 10, 10:34 AM MDT | Fire Weather Watch | MSO | 28 hr |
| Jul 11, 10:43 AM MDT | Red Flag Warning | MSO | 34 hr |
| Jul 13, 2:16 PM MDT | Flood Watch | TFX | 34 hr |
| Jul 14, 5:37 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 16, 2:03 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jul 16, 3:23 PM MDT | Severe Thunderstorm Warning | TFX | 52 min |
| Jul 16, 4:14 PM MDT | Severe Thunderstorm Warning | TFX | 61 min |
| Jul 17, 2:12 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 6:25 PM MDT | Special Weather Statement | TFX | 50 min |
| Jul 17, 6:41 PM MDT | Areal Flood Advisory | TFX | 3 hr |
| Jul 18, 1:36 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jul 18, 2:32 PM MDT | Severe Thunderstorm Warning | TFX | 28 min |
| Jul 18, 2:53 PM MDT | Severe Thunderstorm Warning | TFX | 67 min |
| Jul 18, 3:39 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 5:35 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 22, 5:14 PM MDT | Special Weather Statement | TFX | 46 min |
| Jul 23, 12:51 PM MDT | Heat Advisory | TFX | 3 days |
| Jul 23, 11:15 PM MDT | Special Weather Statement | TFX | 45 min |
| Jul 23, 11:50 PM MDT | Severe Thunderstorm Warning | TFX | 40 min |
| Jul 24, 12:15 PM MDT | Red Flag Warning | MSO | 31 hr |
| Jul 25, 1:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 25, 2:27 PM MDT | Special Weather Statement | TFX | 48 min |
| Jul 25, 2:53 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 29, 8:45 AM MDT | Fire Weather Watch | MSO | 52 hr |
| Jul 29, 10:46 AM MDT | Fire Weather Watch | TFX | 48 hr |
| Jul 30, 8:38 PM MDT | Special Weather Statement | TFX | 67 min |
| Jul 31, 11:01 AM MDT | Red Flag Warning | TFX | 64 hr |
| Jul 31, 12:06 PM MDT | Heat Advisory | TFX | 39 hr |
| Jul 31, 1:11 PM MDT | Red Flag Warning | MSO | 56 hr |
| Aug 6, 8:07 AM MDT | Red Flag Warning | MSO | 13 hr |
| Aug 6, 1:14 PM MDT | Fire Weather Watch | TFX | 10 hr |
| Aug 6, 1:35 PM MDT | Fire Weather Watch | MSO | 8 hr |
| Aug 6, 9:41 PM MDT | Red Flag Warning | MSO | 47 hr |
| Aug 6, 10:51 PM MDT | Red Flag Warning | TFX | 46 hr |
| Aug 10, 6:45 PM MDT | Red Flag Warning | MSO | 26 hr |
| Aug 13, 10:50 AM MDT | Flood Watch | TFX | 13 hr |
| Aug 15, 4:46 PM MDT | Special Weather Statement | TFX | 29 min |
| Aug 15, 5:23 PM MDT | Special Weather Statement | TFX | 52 min |
| Aug 15, 5:59 PM MDT | Special Weather Statement | TFX | 31 min |
| Aug 21, 10:39 AM MDT | Fire Weather Watch | MSO | 22 hr |
| Aug 22, 9:08 AM MDT | Red Flag Warning | MSO | 35 hr |
| Aug 22, 5:03 PM MDT | Special Weather Statement | TFX | 42 min |
| Aug 27, 2:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Aug 27, 4:33 PM MDT | Special Weather Statement | TFX | 57 min |
| Aug 27, 4:52 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 27, 6:03 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Aug 31, 10:31 AM MDT | Fire Weather Watch | MSO | 24 hr |
| Sep 1, 10:22 AM MDT | Red Flag Warning | MSO | 56 hr |
| Sep 2, 11:49 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 1:33 PM MDT | Severe Thunderstorm Warning | TFX | 57 min |
| Sep 2, 1:35 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 2, 2:23 PM MDT | Severe Thunderstorm Warning | TFX | 67 min |
| Sep 5, 2:40 PM MDT | Red Flag Warning | MSO | 30 hr |
| Sep 6, 4:16 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Sep 6, 5:47 PM MDT | Special Weather Statement | MSO | 28 min |
| Sep 9, 9:59 AM MDT | Red Flag Warning | MSO | 35 hr |
| Sep 11, 10:27 AM MDT | Fire Weather Watch | MSO | 23 hr |
| Sep 12, 9:15 AM MDT | Red Flag Warning | MSO | 36 hr |
| Sep 17, 10:18 AM MDT | Flash Flood Watch | TFX | 51 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 archive2025
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.