Alert archive / Montana / Musselshell County
Weather alerts in Musselshell County, Montana, 2018
113 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 113
- Warnings
- 29
- Watches
- 12
- Advisories
- 16
- Busiest month
- June35 alerts
- Busiest day
- June 1, 201811 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Musselshell County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 15 | 7 | 53% | 18 | 78% | 24 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Billings, MT: tornado warnings | 2 | 2 | 0% | 5 | 60% | 23 min |
| NWS Billings, MT: severe thunderstorm warnings | 176 | 84 | 52% | 213 | 73% | 23 min |
| NWS Billings, MT: flash flood warnings | 8 | 6 | 25% | 7 | 86% | 44 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 9, 4:11 AM MST | Winter Storm Watch | BYZ | 11 hr |
| Jan 9, 2:49 PM MST | Winter Storm Warning | BYZ | 28 hr |
| Jan 11, 3:54 AM MST | Winter Weather Advisory | BYZ | 41 hr |
| Jan 14, 1:54 PM MST | Special Weather Statement | BYZ | 81 min |
| Jan 14, 3:29 PM MST | Special Weather Statement | BYZ | 106 min |
| Jan 14, 6:57 PM MST | Special Weather Statement | BYZ | 18 min |
| Jan 14, 7:19 PM MST | Special Weather Statement | BYZ | 3 hr |
| Jan 31, 2:01 PM MST | Special Weather Statement | BYZ | 119 min |
| Jan 31, 3:49 PM MST | Special Weather Statement | BYZ | 116 min |
| Feb 2, 2:51 PM MST | Winter Storm Watch | BYZ | 13 hr |
| Feb 2, 2:51 PM MST | Winter Storm Warning | BYZ | 3 days |
| Feb 2, 2:51 PM MST | Winter Weather Advisory | BYZ | 13 hr |
| Feb 4, 3:16 PM MST | Winter Weather Advisory | BYZ | 30 hr |
| Feb 6, 3:39 PM MST | Winter Storm Watch | BYZ | 35 hr |
| Feb 7, 3:33 PM MST | Winter Storm Warning | BYZ | 42 hr |
| Feb 7, 3:33 PM MST | Winter Weather Advisory | BYZ | 42 hr |
| Feb 9, 2:55 PM MST | Wind Chill Advisory | BYZ | 21 hr |
| Feb 14, 2:33 PM MST | Winter Weather Advisory | BYZ | 24 hr |
| Feb 16, 9:26 PM MST | Special Weather Statement | BYZ | 2 hr |
| Feb 17, 2:56 AM MST | Winter Weather Advisory | BYZ | 66 hr |
| Feb 17, 9:42 PM MST | Special Weather Statement | BYZ | 3 hr |
| Feb 19, 3:05 PM MST | Wind Chill Advisory | BYZ | 21 hr |
| Mar 2, 3:18 AM MST | Winter Storm Watch | BYZ | 48 hr |
| Mar 3, 3:07 AM MST | Winter Storm Warning | BYZ | 3 days |
| Mar 9, 6:13 PM MST | Special Weather Statement | BYZ | 62 min |
| Mar 9, 7:01 PM MST | Special Weather Statement | BYZ | 59 min |
| Mar 15, 2:37 AM MDT | Winter Weather Advisory | BYZ | 41 hr |
| Mar 17, 2:37 PM MDT | Areal Flood Warning | BYZ | 8 days |
| Mar 25, 9:56 AM MDT | Areal Flood Warning | BYZ | 36 hr |
| Mar 31, 2:52 PM MDT | Winter Storm Watch | BYZ | 24 hr |
| Apr 1, 3:30 AM MDT | Winter Storm Warning | BYZ | 50 hr |
| Apr 4, 2:23 AM MDT | Winter Weather Advisory | BYZ | 61 hr |
| Apr 10, 2:58 PM MDT | Winter Storm Watch | BYZ | 36 hr |
| Apr 11, 3:15 PM MDT | Winter Storm Warning | BYZ | 48 hr |
| May 7, 2:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| May 17, 3:00 PM MDT | Special Weather Statement | TFX | 30 min |
| May 17, 4:01 PM MDT | Special Weather Statement | BYZ | 29 min |
| May 17, 4:25 PM MDT | Severe Thunderstorm Warning | BYZ | 50 min |
| May 17, 5:12 PM MDT | Areal Flood Advisory | BYZ | 3 hr |
| May 17, 5:18 PM MDT | Severe Thunderstorm Warning | BYZ | 19 min |
| May 17, 5:51 PM MDT | Special Weather Statement | BYZ | 39 min |
| May 21, 6:49 PM MDT | Special Weather Statement | BYZ | 41 min |
| May 21, 6:57 PM MDT | Severe Thunderstorm Warning | BYZ | 33 min |
| May 21, 8:11 PM MDT | Special Weather Statement | BYZ | 49 min |
| May 22, 12:40 PM MDT | Flood Watch | BYZ | 35 hr |
| May 26, 2:21 PM MDT | Mesoscale Discussion | SPC | 114 min |
| May 31, 1:50 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 31, 4:28 PM MDT | Severe Thunderstorm Warning | BYZ | 62 min |
| May 31, 5:20 PM MDT | Severe Thunderstorm Warning | BYZ | 55 min |
| May 31, 5:27 PM MDT | Mesoscale Discussion | SPC | 93 min |
| May 31, 6:14 PM MDT | Severe Thunderstorm Warning | BYZ | 61 min |
| May 31, 6:34 PM MDT | Areal Flood Warning | BYZ | 9 hr |
| May 31, 7:03 PM MDT | Severe Thunderstorm Warning | BYZ | 42 min |
| May 31, 7:10 PM MDT | Severe Thunderstorm Warning | BYZ | 65 min |
| May 31, 7:27 PM MDT | Severe Thunderstorm Warning | BYZ | 46 min |
| May 31, 8:18 PM MDT | Mesoscale Discussion | SPC | 57 min |
| May 31, 8:27 PM MDT | Special Weather Statement | BYZ | 48 min |
| May 31, 8:41 PM MDT | Severe Thunderstorm Warning | BYZ | 64 min |
| May 31, 10:42 PM MDT | Special Weather Statement | BYZ | 48 min |
| May 31, 11:51 PM MDT | Special Weather Statement | BYZ | 39 min |
| Jun 1, 12:27 AM MDT | Special Weather Statement | BYZ | 48 min |
| Jun 4, 1:47 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jun 4, 4:55 PM MDT | Severe Thunderstorm Warning | BYZ | 35 min |
| Jun 4, 5:28 PM MDT | Severe Thunderstorm Warning | BYZ | 32 min |
| Jun 4, 5:57 PM MDT | Severe Thunderstorm Warning | BYZ | 33 min |
| Jun 4, 6:14 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 4, 6:29 PM MDT | Special Weather Statement | BYZ | 46 min |
| Jun 4, 7:02 PM MDT | Severe Thunderstorm Warning | BYZ | 34 min |
| Jun 7, 10:01 AM MDT | Special Weather Statement | BYZ | 44 min |
| Jun 7, 10:24 AM MDT | Mesoscale Discussion | SPC | 66 min |
| Jun 7, 10:41 AM MDT | Special Weather Statement | BYZ | 34 min |
| Jun 7, 10:08 PM MDT | Special Weather Statement | BYZ | 52 min |
| Jun 20, 11:43 AM MDT | River Flood Warning | BYZ | 72 hr |
| Jun 20, 11:43 AM MDT | River Flood Warning | BYZ | 48 hr |
| Jun 21, 2:28 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Jun 21, 5:17 PM MDT | Special Weather Statement | BYZ | 28 min |
| Jun 21, 5:42 PM MDT | Severe Thunderstorm Warning | BYZ | 28 min |
| Jun 21, 6:17 PM MDT | Special Weather Statement | BYZ | 58 min |
| Jun 22, 2:22 PM MDT | Areal Flood Advisory | BYZ | 3 hr |
| Jun 23, 3:33 PM MDT | Special Weather Statement | BYZ | 42 min |
| Jun 23, 4:07 PM MDT | Special Weather Statement | BYZ | 38 min |
| Jun 25, 5:29 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 25, 11:35 PM MDT | Special Weather Statement | TFX | 40 min |
| Jun 28, 3:49 PM MDT | Special Weather Statement | BYZ | 41 min |
| Jun 28, 7:15 PM MDT | Special Weather Statement | BYZ | 30 min |
| Jul 3, 5:46 PM MDT | Special Weather Statement | BYZ | 59 min |
| Jul 10, 1:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 10, 2:14 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 10, 3:43 PM MDT | Special Weather Statement | BYZ | 62 min |
| Jul 10, 4:28 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 4:37 PM MDT | Special Weather Statement | BYZ | 53 min |
| Jul 10, 6:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 17, 4:23 PM MDT | Special Weather Statement | BYZ | 37 min |
| Jul 21, 7:35 PM MDT | Special Weather Statement | BYZ | 25 min |
| Jul 21, 8:06 PM MDT | Special Weather Statement | BYZ | 54 min |
| Jul 26, 1:10 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 9, 3:51 AM MDT | Excessive Heat Warning | BYZ | 4 days |
| Aug 9, 2:50 PM MDT | Fire Weather Watch | BYZ | 37 hr |
| Aug 11, 3:28 AM MDT | Red Flag Warning | BYZ | 42 hr |
| Aug 17, 10:30 PM MDT | Special Weather Statement | BYZ | 60 min |
| Aug 24, 4:33 PM MDT | Special Weather Statement | BYZ | 27 min |
| Sep 6, 4:04 PM MDT | Special Weather Statement | TFX | 41 min |
| Sep 6, 5:03 PM MDT | Special Weather Statement | BYZ | 42 min |
| Sep 23, 8:04 AM MDT | Special Weather Statement | BYZ | 4 hr |
| Nov 7, 9:31 AM MST | Winter Weather Advisory | BYZ | 13 hr |
| Nov 10, 5:12 AM MST | Special Weather Statement | BYZ | 93 min |
| Nov 15, 2:33 PM MST | Winter Weather Advisory | BYZ | 38 hr |
| Nov 25, 4:48 AM MST | Special Weather Statement | BYZ | 5 hr |
| Nov 29, 3:13 AM MST | Winter Storm Watch | BYZ | 24 hr |
| Nov 30, 3:33 AM MST | Winter Weather Advisory | BYZ | 48 hr |
| Dec 17, 1:46 PM MST | High Wind Warning | BYZ | 50 hr |
| Dec 18, 2:36 AM MST | High Wind Watch | BYZ | 18 hr |
| Dec 25, 3:17 AM MST | Winter Weather Advisory | BYZ | 38 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 | 15 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 43 |
| Flooding | |
| Areal Flood Warning | 3 |
| River Flood Warning | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 12 |
| Heat | |
| Excessive Heat Warning | 1 |
| Cold | |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.