Alert archive / Montana / Custer County
Weather alerts in Custer County, Montana, 2020
101 weather alerts in 2020, 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 2020. Tap one for its archive.
- Alerts
- 101
- Warnings
- 31
- Watches
- 18
- Advisories
- 12
- Busiest month
- July28 alerts
- Busiest day
- July 6, 20207 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 2, 12:29 PM MST | High Wind Watch | BYZ | 23 hr |
| Jan 3, 2:58 AM MST | High Wind Warning | BYZ | 48 hr |
| Jan 7, 1:13 PM MST | Special Weather Statement | BYZ | 3 hr |
| Jan 14, 1:06 PM MST | Wind Chill Advisory | BYZ | 19 hr |
| Jan 17, 4:27 PM MST | Wind Chill Advisory | BYZ | 19 hr |
| Jan 27, 7:47 AM MST | Special Weather Statement | BYZ | 118 min |
| Jan 30, 8:03 AM MST | Special Weather Statement | BYZ | 57 min |
| Feb 8, 2:05 AM MST | Winter Weather Advisory | BYZ | 30 hr |
| Feb 11, 2:45 AM MST | Winter Weather Advisory | BYZ | 43 hr |
| Feb 12, 2:31 PM MST | Wind Chill Advisory | BYZ | 19 hr |
| Feb 23, 3:11 PM MST | Winter Weather Advisory | BYZ | 43 hr |
| Mar 2, 3:08 AM MST | High Wind Warning | BYZ | 65 hr |
| Mar 15, 2:46 AM MDT | Special Weather Statement | BYZ | 3 hr |
| Mar 15, 5:47 AM MDT | Special Weather Statement | BYZ | 118 min |
| Apr 10, 3:01 AM MDT | Winter Weather Advisory | BYZ | 56 hr |
| May 3, 2:10 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 3, 2:26 PM MDT | Special Weather Statement | BYZ | 49 min |
| May 3, 5:19 PM MDT | Special Weather Statement | BYZ | 71 min |
| May 3, 6:30 PM MDT | Special Weather Statement | BYZ | 60 min |
| May 20, 1:43 PM MDT | Mesoscale Discussion | SPC | 92 min |
| May 20, 3:11 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 20, 4:21 PM MDT | Severe Thunderstorm Warning | BYZ | 24 min |
| May 20, 4:42 PM MDT | Severe Thunderstorm Warning | BYZ | 48 min |
| May 20, 5:23 PM MDT | Severe Thunderstorm Warning | BYZ | 67 min |
| May 20, 6:23 PM MDT | Severe Thunderstorm Warning | BYZ | 52 min |
| May 20, 6:27 PM MDT | Mesoscale Discussion | SPC | 93 min |
| May 20, 6:54 PM MDT | Severe Thunderstorm Warning | BYZ | 36 min |
| May 20, 7:24 PM MDT | Severe Thunderstorm Warning | BYZ | 48 min |
| May 31, 2:35 PM MDT | Mesoscale Discussion | SPC | 115 min |
| May 31, 4:07 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 31, 5:10 PM MDT | Severe Thunderstorm Warning | BYZ | 65 min |
| May 31, 6:00 PM MDT | Severe Thunderstorm Warning | BYZ | 45 min |
| Jun 6, 4:49 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 7, 2:59 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 7:17 PM MDT | Special Weather Statement | BYZ | 58 min |
| Jun 13, 5:19 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jun 29, 3:56 PM MDT | Tornado Watch | SPC | 8 hr |
| Jun 29, 6:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 2:47 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 3, 5:30 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 3, 5:38 PM MDT | Special Weather Statement | BYZ | 37 min |
| Jul 3, 6:13 PM MDT | Special Weather Statement | BYZ | 47 min |
| Jul 3, 6:32 PM MDT | Special Weather Statement | BYZ | 43 min |
| Jul 3, 6:59 PM MDT | Severe Thunderstorm Warning | BYZ | 21 min |
| Jul 3, 7:22 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 4, 5:39 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 4, 6:30 PM MDT | Special Weather Statement | BYZ | 45 min |
| Jul 4, 6:50 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Jul 4, 7:21 PM MDT | Special Weather Statement | BYZ | 39 min |
| Jul 6, 1:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 6, 2:45 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 6, 4:47 PM MDT | Severe Thunderstorm Warning | BYZ | 43 min |
| Jul 6, 5:13 PM MDT | Severe Thunderstorm Warning | BYZ | 47 min |
| Jul 6, 5:14 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jul 6, 5:28 PM MDT | Severe Thunderstorm Warning | BYZ | 32 min |
| Jul 6, 5:58 PM MDT | Severe Thunderstorm Warning | BYZ | 24 min |
| Jul 7, 12:47 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 1:14 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 7, 4:52 PM MDT | Severe Thunderstorm Warning | BYZ | 53 min |
| Jul 7, 5:13 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Jul 7, 5:43 PM MDT | Severe Thunderstorm Warning | BYZ | 62 min |
| Jul 7, 6:42 PM MDT | Severe Thunderstorm Warning | BYZ | 63 min |
| Jul 7, 7:17 PM MDT | Severe Thunderstorm Warning | BYZ | 43 min |
| Jul 10, 12:31 PM MDT | Special Weather Statement | BYZ | 59 min |
| Jul 23, 1:56 PM MDT | Fire Weather Watch | BYZ | 24 hr |
| Jul 30, 7:43 PM MDT | Severe Thunderstorm Warning | BYZ | 32 min |
| Aug 11, 1:49 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Aug 11, 4:32 PM MDT | Special Weather Statement | BYZ | 43 min |
| Aug 12, 9:26 PM MDT | Special Weather Statement | BYZ | 64 min |
| Aug 13, 7:53 PM MDT | Special Weather Statement | BYZ | 52 min |
| Aug 16, 1:02 PM MDT | Heat Advisory | BYZ | 55 hr |
| Aug 17, 2:11 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Aug 20, 10:09 PM MDT | Special Weather Statement | BYZ | 51 min |
| Aug 20, 10:43 PM MDT | Severe Thunderstorm Warning | BYZ | 47 min |
| Aug 25, 9:46 PM MDT | Special Weather Statement | BYZ | 74 min |
| Aug 25, 10:58 PM MDT | Special Weather Statement | BYZ | 62 min |
| Aug 27, 1:27 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 27, 4:52 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Aug 27, 5:31 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 30, 2:17 PM MDT | Fire Weather Watch | BYZ | 13 hr |
| Aug 31, 3:27 AM MDT | Red Flag Warning | BYZ | 69 hr |
| Sep 3, 3:14 AM MDT | Fire Weather Watch | BYZ | 32 hr |
| Sep 4, 11:14 AM MDT | Red Flag Warning | BYZ | 57 hr |
| Sep 13, 3:11 AM MDT | Fire Weather Watch | BYZ | 11 hr |
| Sep 13, 3:11 AM MDT | Red Flag Warning | BYZ | 42 hr |
| Sep 22, 1:46 PM MDT | Fire Weather Watch | BYZ | 24 hr |
| Sep 23, 1:22 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Sep 25, 10:53 AM MDT | Red Flag Warning | BYZ | 33 hr |
| Oct 13, 2:57 PM MDT | High Wind Warning | BYZ | 27 hr |
| Oct 16, 2:32 PM MDT | Winter Weather Advisory | BYZ | 4 days |
| Oct 20, 3:33 AM MDT | Winter Storm Watch | BYZ | 25 hr |
| Oct 21, 4:34 AM MDT | Winter Weather Advisory | BYZ | 40 hr |
| Oct 22, 2:31 PM MDT | Winter Storm Watch | BYZ | 24 hr |
| Oct 23, 3:58 AM MDT | Winter Weather Advisory | BYZ | 50 hr |
| Nov 7, 3:51 AM MST | Winter Weather Advisory | BYZ | 37 hr |
| Nov 7, 8:15 AM MST | Special Weather Statement | BYZ | 2 hr |
| Nov 14, 1:08 PM MST | Special Weather Statement | BYZ | 112 min |
| Dec 11, 6:17 AM MST | Special Weather Statement | BYZ | 4 hr |
| Dec 18, 2:42 AM MST | High Wind Warning | BYZ | 65 hr |
| Dec 21, 11:00 AM MST | High Wind Watch | BYZ | 15 hr |
| Dec 22, 2:18 AM MST | High Wind Warning | BYZ | 24 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 | 19 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 24 |
| Winter | |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 8 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 5 |
| High Wind Watch | 2 |
| Fire | |
| Red Flag Warning | 7 |
| Fire Weather Watch | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.