Alert archive / Montana / Musselshell County
Weather alerts in Musselshell County, Montana, 2019
112 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Musselshell County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 112
- Warnings
- 22
- Watches
- 13
- Advisories
- 15
- Busiest month
- July32 alerts
- Busiest day
- June 28, 20197 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Musselshell County in 2019 had a tornado report inside them.
Musselshell County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 13 | 3 | 77% | 5 | 60% | 18 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Billings, MT: tornado warnings | 3 | 0 | 100% | 4 | 0% | |
| NWS Billings, MT: severe thunderstorm warnings | 185 | 83 | 55% | 233 | 73% | 29 min |
| NWS Billings, MT: flash flood warnings | 12 | 4 | 67% | 12 | 67% | 171 min |
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 7, 9:46 AM MST | Special Weather Statement | BYZ | 44 min |
| Jan 17, 12:24 AM MST | Dense Fog Advisory | BYZ | 6 hr |
| Jan 25, 3:24 PM MST | High Wind Warning | BYZ | 59 hr |
| Feb 1, 4:08 AM MST | Winter Storm Watch | BYZ | 24 hr |
| Feb 2, 3:45 AM MST | Winter Storm Warning | BYZ | 48 hr |
| Feb 3, 11:46 AM MST | Wind Chill Advisory | BYZ | 5 days |
| Feb 8, 12:07 PM MST | Wind Chill Advisory | BYZ | 48 hr |
| Feb 12, 2:04 PM MST | Winter Weather Advisory | BYZ | 40 hr |
| Feb 14, 2:40 PM MST | Winter Weather Advisory | BYZ | 25 hr |
| Feb 16, 3:18 PM MST | Wind Chill Advisory | BYZ | 39 hr |
| Feb 22, 3:06 AM MST | Winter Storm Watch | BYZ | 48 hr |
| Feb 23, 3:00 AM MST | Winter Storm Warning | BYZ | 6 days |
| Feb 23, 3:00 AM MST | Winter Weather Advisory | BYZ | 6 days |
| Feb 24, 4:44 PM MST | Mesoscale Discussion | SPC | 6 hr |
| Mar 1, 1:14 PM MST | Wind Chill Advisory | BYZ | 70 hr |
| Mar 1, 6:41 PM MST | Special Weather Statement | BYZ | 79 min |
| Mar 2, 3:10 PM MST | Wind Chill Warning | BYZ | 44 hr |
| Mar 4, 2:59 PM MST | Wind Chill Advisory | BYZ | 19 hr |
| Mar 27, 3:24 AM MDT | Winter Weather Advisory | BYZ | 47 hr |
| Apr 28, 3:20 AM MDT | High Wind Warning | BYZ | 20 hr |
| Apr 29, 4:00 AM MDT | Winter Weather Advisory | BYZ | 54 hr |
| May 5, 7:58 AM MDT | Special Weather Statement | BYZ | 4 hr |
| May 14, 3:47 PM MDT | Special Weather Statement | BYZ | 43 min |
| May 14, 4:29 PM MDT | Special Weather Statement | BYZ | 46 min |
| May 14, 4:34 PM MDT | Severe Thunderstorm Warning | BYZ | 41 min |
| May 14, 5:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| May 20, 2:43 PM MDT | Flood Watch | BYZ | 48 hr |
| May 26, 7:04 PM MDT | Severe Thunderstorm Warning | BYZ | 56 min |
| May 26, 7:52 PM MDT | Severe Thunderstorm Warning | BYZ | 53 min |
| May 26, 9:26 PM MDT | Severe Thunderstorm Warning | BYZ | 34 min |
| Jun 14, 12:21 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jun 14, 1:14 PM MDT | Special Weather Statement | GGW | 61 min |
| Jun 14, 1:36 PM MDT | Special Weather Statement | BYZ | 39 min |
| Jun 14, 2:04 PM MDT | Severe Thunderstorm Warning | BYZ | 56 min |
| Jun 14, 2:56 PM MDT | Special Weather Statement | BYZ | 49 min |
| Jun 20, 1:59 PM MDT | Special Weather Statement | BYZ | 61 min |
| Jun 20, 3:27 PM MDT | Mesoscale Discussion | SPC | 63 min |
| Jun 25, 3:02 PM MDT | Special Weather Statement | BYZ | 43 min |
| Jun 26, 1:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jun 26, 2:16 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 26, 6:03 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jun 27, 6:03 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 7:45 PM MDT | Severe Thunderstorm Warning | BYZ | 60 min |
| Jun 27, 7:50 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jun 27, 8:24 PM MDT | Tornado Warning | BYZ | 36 min |
| Jun 27, 8:45 PM MDT | Severe Thunderstorm Warning | BYZ | 62 min |
| Jun 28, 2:36 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jun 28, 4:45 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 29, 10:46 PM MDT | Special Weather Statement | BYZ | 59 min |
| Jun 30, 4:34 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jul 1, 3:58 PM MDT | Special Weather Statement | BYZ | 47 min |
| Jul 1, 4:40 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jul 1, 4:45 PM MDT | Special Weather Statement | BYZ | 45 min |
| Jul 1, 4:57 PM MDT | Severe Thunderstorm Warning | BYZ | 48 min |
| Jul 7, 1:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 2:58 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 7, 3:51 PM MDT | Special Weather Statement | BYZ | 39 min |
| Jul 7, 6:27 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 5:19 AM MDT | Special Weather Statement | BYZ | 41 min |
| Jul 8, 12:53 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 1:25 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 11, 1:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 6:23 PM MDT | Severe Thunderstorm Warning | BYZ | 37 min |
| Jul 11, 6:57 PM MDT | Severe Thunderstorm Warning | BYZ | 33 min |
| Jul 11, 7:29 PM MDT | Severe Thunderstorm Warning | BYZ | 46 min |
| Jul 11, 8:10 PM MDT | Special Weather Statement | BYZ | 50 min |
| Jul 12, 7:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 8:39 PM MDT | Special Weather Statement | BYZ | 66 min |
| Jul 12, 9:36 PM MDT | Special Weather Statement | BYZ | 54 min |
| Jul 13, 4:10 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 5:19 PM MDT | Special Weather Statement | BYZ | 41 min |
| Jul 14, 2:48 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 6:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 7:36 PM MDT | Special Weather Statement | BYZ | 39 min |
| Jul 15, 1:36 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 12:56 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jul 16, 1:28 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 16, 5:28 PM MDT | Special Weather Statement | TFX | 32 min |
| Jul 23, 4:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 10:40 PM MDT | Special Weather Statement | BYZ | 50 min |
| Jul 30, 4:52 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 30, 5:19 PM MDT | Special Weather Statement | BYZ | 41 min |
| Aug 1, 6:53 PM MDT | Special Weather Statement | BYZ | 37 min |
| Aug 10, 12:44 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Aug 10, 3:04 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 10, 4:53 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 8:34 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Aug 11, 11:33 AM MDT | Mesoscale Discussion | SPC | 87 min |
| Aug 11, 1:59 PM MDT | Tornado Watch | SPC | 10 hr |
| Aug 11, 5:54 PM MDT | Mesoscale Discussion | SPC | 66 min |
| Aug 11, 6:35 PM MDT | Severe Thunderstorm Warning | BYZ | 40 min |
| Aug 11, 7:06 PM MDT | Severe Thunderstorm Warning | BYZ | 39 min |
| Aug 18, 7:38 AM MDT | Special Weather Statement | BYZ | 82 min |
| Aug 22, 8:22 PM MDT | Special Weather Statement | BYZ | 53 min |
| Aug 22, 9:10 PM MDT | Special Weather Statement | TFX | 50 min |
| Sep 3, 9:30 AM MDT | Red Flag Warning | BYZ | 36 hr |
| Oct 6, 1:56 PM MDT | Winter Storm Watch | BYZ | 49 hr |
| Oct 8, 4:02 AM MDT | Winter Storm Warning | BYZ | 47 hr |
| Oct 9, 4:52 AM MDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 22, 2:50 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 4, 7:51 PM MST | Special Weather Statement | BYZ | 4 hr |
| Nov 5, 3:10 AM MST | Winter Weather Advisory | BYZ | 32 hr |
| Nov 8, 2:39 PM MST | Winter Weather Advisory | BYZ | 54 hr |
| Nov 10, 2:59 AM MST | Special Weather Statement | BYZ | 3 hr |
| Nov 10, 12:50 PM MST | Special Weather Statement | BYZ | 25 min |
| Nov 26, 9:45 AM MST | Winter Storm Watch | BYZ | 25 hr |
| Nov 27, 10:22 AM MST | Winter Storm Warning | BYZ | 3 days |
| Dec 7, 3:14 AM MST | Winter Weather Advisory | BYZ | 41 hr |
| Dec 13, 5:08 PM MST | Special Weather Statement | BYZ | 3 hr |
| Dec 13, 7:26 PM MST | Dense Fog Advisory | BYZ | 15 hr |
| Dec 14, 10:51 AM MST | Special Weather Statement | BYZ | 114 min |
| Dec 24, 11:28 PM MST | Special Weather Statement | BYZ | 2 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 | 13 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 29 |
| Special Weather Statement | 33 |
| Flooding | |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 8 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 2 |
| Fire | |
| Red Flag Warning | 1 |
| 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 archive20182020
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.