Alert archive / Montana / Treasure County
Weather alerts in Treasure County, Montana, 2025
122 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Treasure County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 122
- Warnings
- 23
- Watches
- 19
- Advisories
- 20
- Busiest month
- July38 alerts
- Busiest day
- July 5, 20258 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Treasure County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 18 | 10 | 44% | 3 | 100% | 29 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Billings, MT: tornado warnings | 4 | 1 | 75% | 1 | 100% | 2 min |
| NWS Billings, MT: severe thunderstorm warnings | 260 | 77 | 70% | 213 | 67% | 27 min |
| NWS Billings, MT: flash flood warnings | 20 | 0 | 100% | 3 | 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 2, 1:09 AM MST | Winter Weather Advisory | BYZ | 3 days |
| Jan 2, 1:42 PM MST | Winter Storm Watch | BYZ | 25 hr |
| Jan 8, 12:28 PM MST | Special Weather Statement | BYZ | 77 min |
| Jan 9, 1:14 PM MST | Winter Storm Watch | BYZ | 26 hr |
| Jan 10, 3:06 PM MST | Winter Weather Advisory | BYZ | 52 hr |
| Jan 18, 1:28 AM MST | Cold Weather Advisory | BYZ | 3 days |
| Jan 21, 2:17 AM MST | Winter Weather Advisory | BYZ | 51 hr |
| Jan 31, 2:34 AM MST | Winter Storm Warning | BYZ | 6 days |
| Jan 31, 1:56 PM MST | Winter Storm Watch | BYZ | 37 hr |
| Feb 2, 8:31 PM MST | Cold Weather Advisory | BYZ | 38 hr |
| Feb 5, 2:56 PM MST | Special Weather Statement | BYZ | 2 hr |
| Feb 6, 1:54 AM MST | Winter Storm Warning | BYZ | 40 hr |
| Feb 6, 1:54 AM MST | Winter Weather Advisory | BYZ | 46 hr |
| Feb 10, 1:25 AM MST | Cold Weather Advisory | BYZ | 34 hr |
| Feb 11, 2:48 PM MST | Cold Weather Advisory | BYZ | 21 hr |
| Feb 12, 2:10 PM MST | Cold Weather Advisory | BYZ | 20 hr |
| Feb 14, 12:41 PM MST | Winter Storm Watch | BYZ | 25 hr |
| Feb 15, 1:50 PM MST | Winter Weather Advisory | BYZ | 3 days |
| Feb 16, 1:50 PM MST | Cold Weather Advisory | BYZ | 69 hr |
| Mar 17, 3:49 AM MDT | Winter Weather Advisory | BYZ | 40 hr |
| Apr 12, 5:28 PM MDT | Special Weather Statement | BYZ | 32 min |
| Apr 16, 3:21 AM MDT | Winter Weather Advisory | BYZ | 41 hr |
| Apr 17, 2:48 PM MDT | Special Weather Statement | BYZ | 87 min |
| Apr 17, 7:35 PM MDT | Special Weather Statement | BYZ | 85 min |
| Apr 21, 5:08 PM MDT | Special Weather Statement | BYZ | 37 min |
| Apr 21, 5:42 PM MDT | Special Weather Statement | BYZ | 48 min |
| May 11, 3:57 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 4:28 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 12, 7:31 PM MDT | Special Weather Statement | BYZ | 44 min |
| May 12, 8:16 PM MDT | Special Weather Statement | BYZ | 29 min |
| Jun 12, 3:25 PM MDT | Special Weather Statement | BYZ | 50 min |
| Jun 12, 3:57 PM MDT | Severe Thunderstorm Warning | BYZ | 48 min |
| Jun 13, 11:45 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 1:03 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 13, 6:32 PM MDT | Severe Thunderstorm Warning | BYZ | 58 min |
| Jun 13, 7:23 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jun 13, 7:25 PM MDT | Severe Thunderstorm Warning | BYZ | 65 min |
| Jun 13, 7:45 PM MDT | Severe Thunderstorm Warning | BYZ | 60 min |
| Jun 14, 5:04 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jun 14, 6:16 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 15, 1:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 2:15 PM MDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 15, 4:53 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jun 15, 8:59 PM MDT | Severe Thunderstorm Warning | BYZ | 46 min |
| Jun 15, 9:03 PM MDT | Severe Thunderstorm Warning | BYZ | 25 min |
| Jun 15, 9:41 PM MDT | Severe Thunderstorm Warning | BYZ | 64 min |
| Jun 16, 1:53 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 4:52 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jun 26, 5:09 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Jun 26, 6:19 PM MDT | Special Weather Statement | BYZ | 41 min |
| Jun 27, 1:25 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 2:01 AM MDT | Heat Advisory | BYZ | 42 hr |
| Jul 4, 3:39 PM MDT | Special Weather Statement | BYZ | 36 min |
| Jul 4, 6:03 PM MDT | Special Weather Statement | BYZ | 27 min |
| Jul 5, 11:21 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 12:51 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 5, 2:14 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 2:31 PM MDT | Severe Thunderstorm Warning | BYZ | 59 min |
| Jul 5, 3:13 PM MDT | Severe Thunderstorm Warning | BYZ | 62 min |
| Jul 5, 3:30 PM MDT | Severe Thunderstorm Warning | BYZ | 45 min |
| Jul 5, 4:13 PM MDT | Severe Thunderstorm Warning | BYZ | 19 min |
| Jul 6, 3:51 AM MDT | Special Weather Statement | BYZ | 114 min |
| Jul 6, 6:02 AM MDT | Special Weather Statement | BYZ | 88 min |
| Jul 6, 7:32 AM MDT | Special Weather Statement | BYZ | 58 min |
| Jul 8, 1:27 AM MDT | Heat Advisory | BYZ | 44 hr |
| Jul 9, 6:16 PM MDT | Special Weather Statement | BYZ | 44 min |
| Jul 17, 2:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 17, 5:30 PM MDT | Special Weather Statement | BYZ | 45 min |
| Jul 17, 7:04 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jul 17, 8:48 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 17, 9:35 PM MDT | Special Weather Statement | BYZ | 40 min |
| Jul 19, 4:17 PM MDT | Special Weather Statement | BYZ | 43 min |
| Jul 19, 5:02 PM MDT | Special Weather Statement | BYZ | 58 min |
| Jul 20, 3:45 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 20, 4:09 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 20, 6:55 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jul 21, 1:59 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 3:34 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 21, 4:32 PM MDT | Severe Thunderstorm Warning | BYZ | 58 min |
| Jul 21, 10:59 PM MDT | Severe Thunderstorm Warning | BYZ | 38 min |
| Jul 22, 2:00 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 3:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jul 26, 4:05 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 28, 12:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 28, 1:16 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 28, 9:34 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Jul 29, 12:08 AM MDT | Severe Thunderstorm Warning | BYZ | 52 min |
| Jul 29, 12:56 AM MDT | Severe Thunderstorm Warning | BYZ | 52 min |
| Jul 29, 2:28 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 1, 4:25 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 6:18 PM MDT | Special Weather Statement | BYZ | 42 min |
| Aug 4, 4:41 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 4, 6:43 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Aug 4, 6:52 PM MDT | Special Weather Statement | BYZ | 38 min |
| Aug 4, 7:38 PM MDT | Special Weather Statement | BYZ | 52 min |
| Aug 7, 1:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Aug 7, 3:50 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 7, 6:16 PM MDT | Severe Thunderstorm Warning | BYZ | 53 min |
| Aug 7, 6:28 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 6:29 PM MDT | Severe Thunderstorm Warning | BYZ | 40 min |
| Aug 7, 7:08 PM MDT | Severe Thunderstorm Warning | BYZ | 47 min |
| Aug 7, 7:16 PM MDT | Special Weather Statement | BYZ | 29 min |
| Aug 12, 11:01 PM MDT | Special Weather Statement | BYZ | 29 min |
| Aug 18, 1:37 PM MDT | Heat Advisory | BYZ | 55 hr |
| Sep 10, 9:33 PM MDT | Special Weather Statement | BYZ | 57 min |
| Sep 12, 1:32 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 17, 5:03 PM MDT | Special Weather Statement | BYZ | 42 min |
| Sep 18, 5:08 PM MDT | Special Weather Statement | BYZ | 37 min |
| Sep 18, 5:42 PM MDT | Special Weather Statement | BYZ | 48 min |
| Nov 26, 9:44 AM MST | Special Weather Statement | BYZ | 61 min |
| Nov 27, 1:07 PM MST | Winter Weather Advisory | BYZ | 43 hr |
| Dec 1, 2:17 PM MST | Winter Weather Advisory | BYZ | 42 hr |
| Dec 7, 1:17 AM MST | High Wind Watch | BYZ | 36 hr |
| Dec 8, 1:10 AM MST | High Wind Warning | BYZ | 38 hr |
| Dec 8, 2:08 PM MST | Winter Weather Advisory | BYZ | 58 hr |
| Dec 9, 4:18 PM MST | Winter Storm Watch | BYZ | 46 hr |
| Dec 11, 2:22 AM MST | Winter Storm Warning | BYZ | 54 hr |
| Dec 11, 2:22 AM MST | Winter Weather Advisory | BYZ | 54 hr |
| Dec 16, 3:05 AM MST | High Wind Watch | BYZ | 11 hr |
| Dec 16, 1:43 PM MST | High Wind Warning | BYZ | 39 hr |
| Dec 22, 7:40 AM MST | Special Weather Statement | BYZ | 95 min |
| Dec 27, 10:37 AM MST | Special Weather Statement | BYZ | 83 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 | 18 |
| Severe Thunderstorm Watch | 12 |
| Mesoscale Discussion | 27 |
| Special Weather Statement | 33 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 11 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Cold Weather Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.