Alert archive / Montana / Treasure County
Weather alerts in Treasure County, Montana, 2010
109 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 109
- Warnings
- 23
- Watches
- 21
- Advisories
- 19
- Busiest month
- June23 alerts
- Busiest day
- July 2, 20107 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, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 7 | 50% | 13 | 77% | 33 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Billings, MT: tornado warnings | 31 | 8 | 74% | 16 | 44% | 16 min |
| NWS Billings, MT: severe thunderstorm warnings | 168 | 68 | 60% | 200 | 67% | 22 min |
| NWS Billings, MT: flash flood warnings | 17 | 3 | 82% | 8 | 50% | 73 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 3, 3:15 PM MST | Winter Storm Watch | BYZ | 12 hr |
| Jan 4, 3:33 AM MST | Winter Storm Warning | BYZ | 53 hr |
| Jan 4, 4:05 PM MST | Winter Weather Advisory | BYZ | 53 hr |
| Jan 21, 3:40 AM MST | Winter Storm Watch | BYZ | 48 hr |
| Jan 21, 3:09 PM MST | Winter Storm Warning | BYZ | 4 days |
| Feb 4, 2:51 AM MST | Winter Weather Advisory | BYZ | 31 hr |
| Feb 7, 7:26 AM MST | Winter Weather Advisory | BYZ | 5 hr |
| Feb 12, 3:41 AM MST | Winter Weather Advisory | BYZ | 44 hr |
| Mar 2, 3:44 PM MST | Dense Fog Advisory | BYZ | 19 hr |
| Mar 7, 3:29 AM MST | Dense Fog Advisory | BYZ | 6 hr |
| Mar 31, 4:05 PM MDT | Winter Weather Advisory | BYZ | 41 hr |
| Apr 8, 2:52 PM MDT | High Wind Warning | BYZ | 12 hr |
| Apr 30, 8:03 AM MDT | High Wind Warning | BYZ | 18 hr |
| May 1, 3:37 PM MDT | High Wind Watch | BYZ | 47 hr |
| May 3, 4:12 AM MDT | High Wind Warning | BYZ | 41 hr |
| May 5, 3:28 PM MDT | Winter Weather Advisory | BYZ | 36 hr |
| May 18, 5:27 PM MDT | Special Weather Statement | BYZ | 63 min |
| May 20, 1:21 PM MDT | Mesoscale Discussion | SPC | 54 min |
| May 26, 3:41 PM MDT | Mesoscale Discussion | SPC | 94 min |
| May 26, 5:03 PM MDT | Tornado Watch | SPC | 7 hr |
| May 26, 8:30 PM MDT | Mesoscale Discussion | SPC | 60 min |
| May 27, 2:54 PM MDT | Mesoscale Discussion | SPC | 96 min |
| May 27, 4:39 PM MDT | Tornado Watch | SPC | 8 hr |
| May 27, 6:57 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 10:00 PM MDT | Special Weather Statement | BYZ | 60 min |
| May 27, 10:11 PM MDT | Severe Thunderstorm Warning | BYZ | 58 min |
| May 27, 10:57 PM MDT | Severe Thunderstorm Warning | BYZ | 63 min |
| Jun 9, 7:48 PM MDT | Special Weather Statement | BYZ | 57 min |
| Jun 9, 8:13 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Jun 15, 3:50 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Jun 15, 4:19 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 15, 6:29 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jun 16, 3:18 AM MDT | Flash Flood Watch | BYZ | 32 hr |
| Jun 16, 3:52 AM MDT | High Wind Watch | BYZ | 11 hr |
| Jun 16, 2:31 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Jun 16, 2:57 PM MDT | High Wind Warning | BYZ | 43 hr |
| Jun 16, 3:30 PM MDT | Tornado Watch | SPC | 8 hr |
| Jun 16, 6:01 PM MDT | Severe Thunderstorm Warning | BYZ | 59 min |
| Jun 16, 6:01 PM MDT | Mesoscale Discussion | SPC | 59 min |
| Jun 16, 6:52 PM MDT | Special Weather Statement | BYZ | 53 min |
| Jun 20, 12:55 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 20, 2:25 PM MDT | Severe Thunderstorm Warning | BYZ | 32 min |
| Jun 20, 3:14 PM MDT | Severe Thunderstorm Warning | BYZ | 61 min |
| Jun 20, 3:28 PM MDT | Severe Thunderstorm Warning | BYZ | 62 min |
| Jun 20, 7:09 PM MDT | Severe Thunderstorm Warning | BYZ | 49 min |
| Jun 21, 4:07 AM MDT | Flash Flood Watch | BYZ | 19 hr |
| Jun 21, 2:08 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 29, 9:25 PM MDT | Special Weather Statement | BYZ | 65 min |
| Jun 30, 3:54 PM MDT | Mesoscale Discussion | SPC | 66 min |
| Jun 30, 4:13 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 1, 1:37 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 1, 4:57 PM MDT | Mesoscale Discussion | SPC | 63 min |
| Jul 1, 7:19 PM MDT | Severe Thunderstorm Warning | BYZ | 56 min |
| Jul 1, 8:09 PM MDT | Severe Thunderstorm Warning | BYZ | 51 min |
| Jul 1, 8:55 PM MDT | Severe Thunderstorm Warning | BYZ | 50 min |
| Jul 1, 8:59 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jul 2, 12:43 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 1:39 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 2, 5:02 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Jul 10, 10:29 PM MDT | Special Weather Statement | BYZ | 61 min |
| Jul 10, 11:59 PM MDT | Special Weather Statement | BYZ | 61 min |
| Jul 12, 1:03 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jul 12, 2:06 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 3:58 PM MDT | Severe Thunderstorm Warning | BYZ | 47 min |
| Jul 18, 4:43 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Jul 18, 8:18 PM MDT | Special Weather Statement | BYZ | 57 min |
| Jul 18, 8:50 PM MDT | Special Weather Statement | BYZ | 55 min |
| Jul 19, 2:21 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 1:29 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 9:37 PM MDT | Severe Thunderstorm Warning | BYZ | 53 min |
| Jul 21, 10:31 PM MDT | Severe Thunderstorm Warning | BYZ | 59 min |
| Jul 23, 1:18 PM MDT | Special Weather Statement | BYZ | 57 min |
| Jul 31, 5:02 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 31, 8:05 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 1, 5:37 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Aug 3, 6:34 AM MDT | Severe Thunderstorm Warning | BYZ | 14 min |
| Aug 3, 7:01 AM MDT | Special Weather Statement | BYZ | 59 min |
| Aug 6, 3:03 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 6, 6:22 PM MDT | Special Weather Statement | BYZ | 53 min |
| Aug 6, 6:36 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Aug 9, 3:54 PM MDT | Mesoscale Discussion | SPC | 66 min |
| Aug 9, 5:13 PM MDT | Special Weather Statement | BYZ | 62 min |
| Aug 9, 8:06 PM MDT | Special Weather Statement | BYZ | 54 min |
| Aug 12, 2:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Aug 21, 4:47 PM MDT | Special Weather Statement | BYZ | 58 min |
| Aug 21, 5:38 PM MDT | Special Weather Statement | BYZ | 52 min |
| Aug 22, 3:52 AM MDT | Red Flag Warning | BYZ | 14 hr |
| Aug 22, 4:51 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Aug 24, 3:43 PM MDT | Fire Weather Watch | BYZ | 24 hr |
| Aug 25, 3:42 PM MDT | Red Flag Warning | BYZ | 47 hr |
| Aug 29, 4:12 AM MDT | Special Weather Statement | BYZ | 63 min |
| Aug 29, 3:57 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Sep 4, 5:10 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 8:33 AM MDT | Special Weather Statement | BYZ | 57 min |
| Sep 5, 9:26 AM MDT | Special Weather Statement | BYZ | 64 min |
| Sep 9, 2:35 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 9, 4:10 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Nov 15, 3:47 PM MST | Winter Weather Advisory | BYZ | 36 hr |
| Nov 18, 3:52 PM MST | Winter Weather Advisory | BYZ | 60 hr |
| Nov 19, 4:53 AM MST | Winter Weather Advisory | BYZ | 47 hr |
| Nov 22, 3:30 PM MST | Winter Weather Advisory | BYZ | 4 days |
| Nov 28, 4:31 AM MST | Winter Weather Advisory | BYZ | 35 hr |
| Nov 28, 5:10 PM MST | Winter Storm Warning | BYZ | 12 hr |
| Dec 2, 3:50 AM MST | Winter Weather Advisory | BYZ | 30 hr |
| Dec 4, 9:43 PM MST | Dense Fog Advisory | BYZ | 13 hr |
| Dec 5, 2:53 PM MST | Dense Fog Advisory | BYZ | 12 hr |
| Dec 12, 3:47 AM MST | Freezing Rain Advisory | BYZ | 24 hr |
| Dec 19, 3:57 AM MST | Winter Weather Advisory | BYZ | 31 hr |
| Dec 29, 3:49 AM MST | Winter Weather Advisory | BYZ | 59 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 | 14 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 27 |
| Special Weather Statement | 19 |
| Flooding | |
| Flash Flood Watch | 2 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 14 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 2 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.