Alert archive / Montana / Custer County
Weather alerts in Custer County, Montana, 2021
94 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Custer County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 94
- Warnings
- 30
- Watches
- 23
- Advisories
- 13
- Busiest month
- June22 alerts
- Busiest day
- June 9, 20215 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 9, 6:15 AM MST | Special Weather Statement | BYZ | 2 hr |
| Jan 9, 8:16 AM MST | Special Weather Statement | BYZ | 89 min |
| Jan 10, 9:01 AM MST | Special Weather Statement | BYZ | 119 min |
| Jan 11, 3:04 AM MST | High Wind Watch | BYZ | 34 hr |
| Jan 12, 2:51 AM MST | High Wind Warning | BYZ | 65 hr |
| Jan 17, 2:47 AM MST | Winter Weather Advisory | BYZ | 33 hr |
| Jan 25, 3:32 AM MST | Dense Fog Advisory | BYZ | 5 hr |
| Jan 25, 9:12 AM MST | Special Weather Statement | BYZ | 2 hr |
| Feb 4, 1:48 PM MST | Winter Weather Advisory | BYZ | 62 hr |
| Feb 6, 3:26 AM MST | Wind Chill Advisory | BYZ | 10 days |
| Feb 10, 3:39 AM MST | Wind Chill Warning | BYZ | 4 days |
| Feb 20, 3:00 AM MST | High Wind Warning | BYZ | 4 days |
| Feb 21, 2:34 AM MST | High Wind Watch | BYZ | 12 hr |
| Mar 17, 6:23 AM MDT | Special Weather Statement | BYZ | 3 hr |
| Mar 27, 3:15 AM MDT | High Wind Watch | BYZ | 23 hr |
| Mar 28, 2:27 AM MDT | High Wind Warning | BYZ | 40 hr |
| May 28, 3:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 28, 6:50 PM MDT | Special Weather Statement | BYZ | 40 min |
| Jun 4, 4:01 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 4, 8:10 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 6:34 PM MDT | Special Weather Statement | BYZ | 41 min |
| Jun 5, 8:07 PM MDT | Special Weather Statement | BYZ | 38 min |
| Jun 8, 2:39 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 8, 3:52 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 8, 6:15 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 8, 7:52 PM MDT | Severe Thunderstorm Warning | BYZ | 42 min |
| Jun 9, 3:19 AM MDT | High Wind Watch | BYZ | 24 hr |
| Jun 9, 3:57 AM MDT | Fire Weather Watch | BYZ | 10 hr |
| Jun 9, 1:38 PM MDT | Red Flag Warning | BYZ | 32 hr |
| Jun 10, 2:53 AM MDT | High Wind Warning | BYZ | 23 hr |
| Jun 10, 2:52 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 10, 7:03 PM MDT | Severe Thunderstorm Warning | BYZ | 42 min |
| Jun 13, 2:34 PM MDT | Excessive Heat Warning | BYZ | 54 hr |
| Jun 18, 2:46 AM MDT | Fire Weather Watch | BYZ | 11 hr |
| Jun 18, 2:00 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Jun 24, 2:37 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 29, 1:38 AM MDT | Excessive Heat Watch | BYZ | 36 hr |
| Jun 29, 2:27 PM MDT | Fire Weather Watch | BYZ | 23 hr |
| Jun 30, 1:34 PM MDT | Excessive Heat Warning | BYZ | 4 days |
| Jun 30, 1:40 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Jul 6, 5:00 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 10:27 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Jul 7, 2:03 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 7, 3:03 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 7, 5:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 7, 7:31 PM MDT | Severe Thunderstorm Warning | BYZ | 29 min |
| Jul 7, 7:53 PM MDT | Severe Thunderstorm Warning | BYZ | 52 min |
| Jul 7, 8:14 PM MDT | Severe Thunderstorm Warning | BYZ | 46 min |
| Jul 7, 8:59 PM MDT | Severe Thunderstorm Warning | BYZ | 31 min |
| Jul 14, 12:51 PM MDT | Excessive Heat Watch | BYZ | 46 hr |
| Jul 16, 11:06 AM MDT | Excessive Heat Warning | BYZ | 6 days |
| Jul 18, 2:06 AM MDT | Fire Weather Watch | BYZ | 13 hr |
| Jul 18, 3:10 PM MDT | Red Flag Warning | BYZ | 57 hr |
| Jul 22, 1:46 PM MDT | Special Weather Statement | BYZ | 44 min |
| Jul 24, 12:18 PM MDT | Excessive Heat Watch | BYZ | 25 hr |
| Jul 25, 1:39 PM MDT | Excessive Heat Warning | BYZ | 58 hr |
| Aug 4, 4:26 PM MDT | Special Weather Statement | BYZ | 49 min |
| Aug 7, 3:06 AM MDT | Fire Weather Watch | BYZ | 11 hr |
| Aug 7, 2:26 PM MDT | Red Flag Warning | BYZ | 34 hr |
| Aug 8, 8:23 PM MDT | Special Weather Statement | BYZ | 52 min |
| Aug 9, 2:58 AM MDT | Fire Weather Watch | BYZ | 10 hr |
| Aug 9, 12:55 PM MDT | Red Flag Warning | BYZ | 57 hr |
| Aug 14, 3:08 AM MDT | Fire Weather Watch | BYZ | 11 hr |
| Aug 14, 2:07 PM MDT | Red Flag Warning | BYZ | 3 days |
| Aug 15, 1:30 PM MDT | Heat Advisory | BYZ | 55 hr |
| Aug 16, 6:48 PM MDT | Special Weather Statement | BYZ | 42 min |
| Aug 16, 7:42 PM MDT | Special Weather Statement | BYZ | 48 min |
| Aug 25, 9:21 PM MDT | Special Weather Statement | BYZ | 24 min |
| Aug 25, 10:28 PM MDT | Special Weather Statement | BYZ | 47 min |
| Aug 26, 9:57 PM MDT | Special Weather Statement | BYZ | 63 min |
| Sep 4, 2:20 PM MDT | Fire Weather Watch | BYZ | 24 hr |
| Sep 5, 2:29 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Sep 7, 1:49 PM MDT | Fire Weather Watch | BYZ | 24 hr |
| Sep 8, 1:56 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Sep 14, 1:04 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Sep 16, 1:53 PM MDT | Red Flag Warning | BYZ | 55 hr |
| Sep 27, 1:50 AM MDT | Fire Weather Watch | BYZ | 12 hr |
| Sep 27, 2:06 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Oct 10, 2:47 PM MDT | Winter Storm Warning | BYZ | 3 days |
| Oct 11, 3:34 AM MDT | Winter Weather Advisory | BYZ | 47 hr |
| Oct 13, 3:58 AM MDT | Mesoscale Discussion | SPC | 6 hr |
| Oct 24, 7:15 AM MDT | Special Weather Statement | BYZ | 2 hr |
| Oct 24, 9:57 AM MDT | Special Weather Statement | BYZ | 63 min |
| Nov 12, 1:58 PM MST | High Wind Watch | BYZ | 12 hr |
| Nov 12, 1:58 PM MST | High Wind Warning | BYZ | 28 hr |
| Nov 15, 2:44 AM MST | High Wind Warning | BYZ | 39 hr |
| Dec 13, 2:37 PM MST | Winter Weather Advisory | BYZ | 50 hr |
| Dec 15, 2:11 PM MST | Wind Chill Advisory | BYZ | 55 hr |
| Dec 16, 5:08 AM MST | Dense Fog Advisory | BYZ | 4 hr |
| Dec 26, 4:06 AM MST | Winter Weather Advisory | BYZ | 17 hr |
| Dec 26, 6:39 PM MST | Wind Chill Advisory | BYZ | 41 hr |
| Dec 27, 12:21 PM MST | Special Weather Statement | BYZ | 69 min |
| Dec 28, 2:27 PM MST | Wind Chill Advisory | BYZ | 23 hr |
| Dec 30, 12:30 PM MST | Wind Chill Advisory | BYZ | 22 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 | 6 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 19 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 5 |
| Heat | |
| Excessive Heat Warning | 4 |
| Excessive Heat Watch | 3 |
| Heat Advisory | 1 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 6 |
| High Wind Watch | 5 |
| Fire | |
| Red Flag Warning | 12 |
| Fire Weather Watch | 10 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
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.