Alert archive / Montana / Jefferson County
Weather alerts in Jefferson County, Montana, 2021
108 weather alerts in 2021, 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 2021. Tap one for its archive.
- Alerts
- 108
- Warnings
- 37
- Watches
- 17
- Advisories
- 2
- Busiest month
- July36 alerts
- Busiest day
- July 21, 20217 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 29, 5:48 PM MST | Special Weather Statement | TFX | 117 min |
| Jan 29, 8:37 PM MST | Special Weather Statement | TFX | 113 min |
| Feb 20, 5:35 PM MST | Special Weather Statement | TFX | 40 min |
| Feb 23, 3:03 AM MST | Special Weather Statement | TFX | 42 min |
| Mar 10, 3:56 PM MST | Special Weather Statement | TFX | 49 min |
| Mar 26, 11:59 AM MDT | Fire Weather Watch | MSO | 24 hr |
| Mar 27, 2:37 AM MDT | Red Flag Warning | TFX | 41 hr |
| Mar 27, 11:43 AM MDT | Red Flag Warning | MSO | 31 hr |
| Mar 31, 2:39 PM MDT | Red Flag Warning | TFX | 30 hr |
| Apr 1, 11:52 AM MDT | Red Flag Warning | MSO | 9 hr |
| May 7, 2:25 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 2:32 PM MDT | Special Weather Statement | TFX | 88 min |
| Jun 4, 1:59 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 9:56 AM MDT | Red Flag Warning | TFX | 38 hr |
| Jun 14, 12:00 PM MDT | Red Flag Warning | MSO | 36 hr |
| Jun 14, 2:27 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 1:45 PM MDT | Red Flag Warning | MSO | 30 hr |
| Jul 1, 2:54 PM MDT | Special Weather Statement | TFX | 51 min |
| Jul 4, 4:17 PM MDT | Special Weather Statement | TFX | 28 min |
| Jul 4, 4:49 PM MDT | Special Weather Statement | TFX | 26 min |
| Jul 4, 5:19 PM MDT | Special Weather Statement | TFX | 26 min |
| Jul 5, 2:59 PM MDT | Special Weather Statement | TFX | 31 min |
| Jul 5, 3:31 PM MDT | Special Weather Statement | TFX | 29 min |
| Jul 5, 4:27 PM MDT | Special Weather Statement | TFX | 33 min |
| Jul 7, 3:03 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 7, 3:06 PM MDT | Special Weather Statement | TFX | 54 min |
| Jul 7, 3:26 PM MDT | Severe Thunderstorm Warning | TFX | 34 min |
| Jul 7, 3:46 PM MDT | Special Weather Statement | TFX | 44 min |
| Jul 7, 4:02 PM MDT | Special Weather Statement | TFX | 43 min |
| Jul 8, 7:08 AM MDT | Red Flag Warning | MSO | 14 hr |
| Jul 9, 10:11 AM MDT | Fire Weather Watch | MSO | 28 hr |
| Jul 10, 2:09 PM MDT | Red Flag Warning | MSO | 31 hr |
| Jul 11, 12:33 AM MDT | Red Flag Warning | TFX | 20 hr |
| Jul 14, 1:08 PM MDT | Red Flag Warning | MSO | 32 hr |
| Jul 14, 1:32 PM MDT | Red Flag Warning | TFX | 31 hr |
| Jul 16, 6:58 PM MDT | Special Weather Statement | TFX | 47 min |
| Jul 18, 1:04 PM MDT | Red Flag Warning | MSO | 35 hr |
| Jul 18, 1:58 PM MDT | Red Flag Warning | TFX | 31 hr |
| Jul 20, 1:19 PM MDT | Fire Weather Watch | MSO | 23 hr |
| Jul 20, 2:04 PM MDT | Fire Weather Watch | TFX | 23 hr |
| Jul 20, 5:53 PM MDT | Special Weather Statement | TFX | 37 min |
| Jul 21, 12:17 PM MDT | Fire Weather Watch | MSO | 25 hr |
| Jul 21, 1:26 PM MDT | Fire Weather Watch | TFX | 25 hr |
| Jul 21, 1:26 PM MDT | Red Flag Warning | TFX | 56 hr |
| Jul 21, 2:40 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jul 21, 4:24 PM MDT | Special Weather Statement | TFX | 36 min |
| Jul 21, 4:56 PM MDT | Special Weather Statement | TFX | 34 min |
| Jul 21, 4:58 PM MDT | Special Weather Statement | TFX | 32 min |
| Jul 21, 6:01 PM MDT | Special Weather Statement | TFX | 29 min |
| Jul 22, 1:32 PM MDT | Red Flag Warning | MSO | 31 hr |
| Jul 23, 8:58 PM MDT | Fire Weather Watch | TFX | 29 hr |
| Jul 29, 5:06 PM MDT | Special Weather Statement | TFX | 39 min |
| Aug 2, 12:52 PM MDT | Special Weather Statement | TFX | 23 min |
| Aug 2, 1:25 PM MDT | Areal Flood Advisory | TFX | 3 hr |
| Aug 2, 2:53 PM MDT | Areal Flood Advisory | TFX | 2 hr |
| Aug 2, 3:15 PM MDT | Special Weather Statement | TFX | 30 min |
| Aug 2, 4:04 PM MDT | Special Weather Statement | TFX | 26 min |
| Aug 2, 4:42 PM MDT | Special Weather Statement | TFX | 33 min |
| Aug 4, 1:21 PM MDT | Red Flag Warning | MSO | 35 hr |
| Aug 4, 2:35 PM MDT | Red Flag Warning | TFX | 33 hr |
| Aug 5, 4:07 PM MDT | Special Weather Statement | TFX | 38 min |
| Aug 5, 4:09 PM MDT | Special Weather Statement | TFX | 51 min |
| Aug 5, 4:23 PM MDT | Special Weather Statement | TFX | 52 min |
| Aug 5, 5:13 PM MDT | Special Weather Statement | TFX | 32 min |
| Aug 6, 2:21 PM MDT | Fire Weather Watch | TFX | 20 hr |
| Aug 6, 2:46 PM MDT | Fire Weather Watch | MSO | 22 hr |
| Aug 7, 10:48 AM MDT | Red Flag Warning | TFX | 33 hr |
| Aug 7, 1:09 PM MDT | Red Flag Warning | MSO | 30 hr |
| Aug 8, 1:26 PM MDT | Special Weather Statement | TFX | 79 min |
| Aug 8, 2:37 PM MDT | Special Weather Statement | TFX | 83 min |
| Aug 8, 8:39 PM MDT | Special Weather Statement | TFX | 51 min |
| Aug 14, 3:39 AM MDT | Fire Weather Watch | TFX | 11 hr |
| Aug 14, 2:40 PM MDT | Red Flag Warning | TFX | 54 hr |
| Aug 17, 9:47 AM MDT | Red Flag Warning | MSO | 11 hr |
| Aug 17, 2:21 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Aug 17, 2:53 PM MDT | Special Weather Statement | TFX | 52 min |
| Aug 17, 3:33 PM MDT | Special Weather Statement | TFX | 57 min |
| Aug 21, 7:04 PM MDT | Special Weather Statement | TFX | 41 min |
| Aug 21, 7:53 PM MDT | Special Weather Statement | TFX | 37 min |
| Aug 21, 8:19 PM MDT | Special Weather Statement | TFX | 41 min |
| Aug 21, 8:52 PM MDT | Special Weather Statement | TFX | 38 min |
| Aug 25, 6:27 PM MDT | Special Weather Statement | TFX | 48 min |
| Sep 4, 12:51 PM MDT | Red Flag Warning | MSO | 32 hr |
| Sep 4, 2:36 PM MDT | Red Flag Warning | TFX | 30 hr |
| Sep 5, 2:10 AM MDT | Fire Weather Watch | TFX | 18 hr |
| Sep 5, 10:30 AM MDT | Fire Weather Watch | MSO | 10 hr |
| Sep 5, 3:21 PM MDT | Red Flag Warning | TFX | 30 hr |
| Sep 5, 8:35 PM MDT | Red Flag Warning | MSO | 24 hr |
| Sep 7, 3:51 AM MDT | Fire Weather Watch | MSO | 8 hr |
| Sep 7, 12:16 PM MDT | Red Flag Warning | MSO | 32 hr |
| Sep 7, 2:32 PM MDT | Fire Weather Watch | TFX | 22 hr |
| Sep 8, 12:57 PM MDT | Red Flag Warning | TFX | 32 hr |
| Sep 8, 8:50 PM MDT | Red Flag Warning | MSO | 24 hr |
| Sep 10, 7:02 PM MDT | Special Weather Statement | TFX | 28 min |
| Sep 10, 7:32 PM MDT | Special Weather Statement | TFX | 43 min |
| Sep 10, 8:24 PM MDT | Special Weather Statement | TFX | 36 min |
| Sep 14, 12:39 PM MDT | Red Flag Warning | MSO | 32 hr |
| Sep 16, 2:18 PM MDT | Red Flag Warning | TFX | 55 hr |
| Sep 16, 2:39 PM MDT | Red Flag Warning | MSO | 54 hr |
| Sep 24, 12:32 PM MDT | Fire Weather Watch | MSO | 49 hr |
| Sep 24, 12:32 PM MDT | Fire Weather Watch | MSO | 25 hr |
| Sep 25, 1:31 PM MDT | Red Flag Warning | MSO | 31 hr |
| Sep 26, 1:08 PM MDT | Red Flag Warning | MSO | 45 hr |
| Oct 4, 9:14 AM MDT | Red Flag Warning | TFX | 35 hr |
| Oct 4, 12:17 PM MDT | Red Flag Warning | MSO | 32 hr |
| Oct 6, 3:25 PM MDT | Special Weather Statement | TFX | 35 min |
| Nov 11, 12:28 PM MST | Special Weather Statement | TFX | 77 min |
| Dec 14, 3:48 PM MST | Special Weather Statement | TFX | 57 min |
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 | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 47 |
| Flooding | |
| Areal Flood Advisory | 2 |
| Fire | |
| Red Flag Warning | 36 |
| Fire Weather Watch | 16 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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. Rebuilt daily.