Alert archive / Montana / Treasure County
Weather alerts in Treasure County, Montana, 2013
113 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 113
- Warnings
- 25
- Watches
- 15
- Advisories
- 14
- Busiest month
- June24 alerts
- Busiest day
- May 27, 201313 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 4 tornado warnings covering Treasure County in 2013 had a tornado report inside them.
Treasure County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 0 | ||
| Severe thunderstorm warnings | 15 | 8 | 47% | 5 | 80% | 29 min |
| Flash flood warnings | 4 | 0 | 100% | 2 | 0% |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Billings, MT: tornado warnings | 15 | 2 | 87% | 5 | 40% | 7 min |
| NWS Billings, MT: severe thunderstorm warnings | 196 | 118 | 40% | 320 | 75% | 24 min |
| NWS Billings, MT: flash flood warnings | 44 | 15 | 66% | 35 | 57% | 52 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 8, 3:51 PM MST | Winter Storm Watch | BYZ | 36 hr |
| Jan 9, 4:06 PM MST | Winter Storm Warning | BYZ | 60 hr |
| Mar 3, 2:25 PM MST | Winter Weather Advisory | BYZ | 31 hr |
| Apr 12, 3:20 PM MDT | Winter Storm Watch | BYZ | 24 hr |
| May 17, 5:35 AM MDT | Flash Flood Watch | BYZ | 22 hr |
| May 19, 3:58 AM MDT | Flash Flood Watch | BYZ | 35 hr |
| May 23, 11:04 PM MDT | Special Weather Statement | BYZ | 41 min |
| May 26, 2:44 PM MDT | Mesoscale Discussion | SPC | 91 min |
| May 26, 3:47 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 26, 6:08 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 6:45 PM MDT | Tornado Warning | BYZ | 45 min |
| May 26, 7:40 PM MDT | Special Weather Statement | BYZ | 50 min |
| May 26, 8:30 PM MDT | Severe Thunderstorm Warning | BYZ | 60 min |
| May 26, 8:44 PM MDT | Severe Thunderstorm Warning | BYZ | 61 min |
| May 26, 8:50 PM MDT | Tornado Warning | BYZ | 40 min |
| May 26, 9:13 PM MDT | Flash Flood Warning | BYZ | 3 hr |
| May 26, 9:31 PM MDT | Tornado Warning | BYZ | 44 min |
| May 26, 9:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| May 26, 10:14 PM MDT | Special Weather Statement | BYZ | 46 min |
| May 26, 10:21 PM MDT | Severe Thunderstorm Warning | BYZ | 39 min |
| May 27, 11:51 AM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| May 27, 3:06 PM MDT | Flash Flood Warning | BYZ | 3 hr |
| May 29, 5:35 PM MDT | Flash Flood Warning | BYZ | 3 hr |
| May 30, 4:55 PM MDT | Areal Flood Advisory | BYZ | 36 hr |
| Jun 2, 7:56 PM MDT | Mesoscale Discussion | SPC | 64 min |
| Jun 2, 8:35 PM MDT | Special Weather Statement | BYZ | 40 min |
| Jun 2, 9:09 PM MDT | Special Weather Statement | BYZ | 36 min |
| Jun 11, 12:05 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jun 11, 1:07 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 11, 4:06 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jun 11, 5:15 PM MDT | Special Weather Statement | BYZ | 45 min |
| Jun 11, 5:46 PM MDT | Special Weather Statement | BYZ | 44 min |
| Jun 11, 6:23 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jun 13, 12:29 PM MDT | Severe Thunderstorm Warning | BYZ | 31 min |
| Jun 13, 12:37 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 13, 12:46 PM MDT | Special Weather Statement | BYZ | 44 min |
| Jun 13, 1:02 PM MDT | Special Weather Statement | BYZ | 28 min |
| Jun 13, 1:06 PM MDT | Severe Thunderstorm Watch | SPC | 12 hr |
| Jun 13, 4:44 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jun 13, 7:43 PM MDT | Severe Thunderstorm Warning | BYZ | 47 min |
| Jun 13, 8:06 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jun 13, 10:53 PM MDT | Severe Thunderstorm Warning | BYZ | 37 min |
| Jun 13, 11:19 PM MDT | Severe Thunderstorm Warning | BYZ | 56 min |
| Jun 13, 11:25 PM MDT | Flash Flood Warning | BYZ | 3 hr |
| Jun 13, 11:39 PM MDT | Special Weather Statement | BYZ | 36 min |
| Jun 19, 8:56 PM MDT | Special Weather Statement | BYZ | 49 min |
| Jun 19, 9:49 PM MDT | Special Weather Statement | BYZ | 41 min |
| Jun 22, 4:09 AM MDT | Special Weather Statement | BYZ | 51 min |
| Jul 4, 3:48 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jul 4, 4:44 PM MDT | Severe Thunderstorm Warning | BYZ | 31 min |
| Jul 7, 2:47 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Jul 7, 4:00 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 6:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jul 7, 8:44 PM MDT | Special Weather Statement | BYZ | 31 min |
| Jul 8, 3:42 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 4:01 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 8, 4:58 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 5:03 PM MDT | Severe Thunderstorm Warning | BYZ | 57 min |
| Jul 8, 5:05 PM MDT | Severe Thunderstorm Warning | BYZ | 55 min |
| Jul 8, 5:21 PM MDT | Tornado Warning | BYZ | 24 min |
| Jul 8, 5:25 PM MDT | Severe Thunderstorm Warning | BYZ | 65 min |
| Jul 8, 5:57 PM MDT | Severe Thunderstorm Warning | BYZ | 63 min |
| Jul 15, 8:28 AM MDT | Special Weather Statement | BYZ | 47 min |
| Jul 24, 7:48 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jul 28, 3:56 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 28, 7:32 PM MDT | Special Weather Statement | BYZ | 43 min |
| Jul 30, 2:08 AM MDT | Special Weather Statement | BYZ | 37 min |
| Jul 30, 3:37 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 1:26 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Aug 1, 8:26 PM MDT | Severe Thunderstorm Warning | BYZ | 64 min |
| Aug 1, 9:17 PM MDT | Severe Thunderstorm Warning | BYZ | 58 min |
| Aug 1, 10:10 PM MDT | Severe Thunderstorm Warning | BYZ | 65 min |
| Aug 3, 1:17 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 3, 1:50 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 3, 5:44 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Aug 5, 2:31 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Aug 7, 4:33 PM MDT | Special Weather Statement | BYZ | 42 min |
| Aug 7, 4:53 PM MDT | Special Weather Statement | BYZ | 37 min |
| Aug 9, 3:30 PM MDT | Special Weather Statement | BYZ | 45 min |
| Aug 12, 2:10 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 12, 8:50 PM MDT | Special Weather Statement | BYZ | 55 min |
| Aug 12, 9:44 PM MDT | Special Weather Statement | BYZ | 46 min |
| Aug 13, 12:01 AM MDT | Special Weather Statement | BYZ | 44 min |
| Aug 14, 6:18 PM MDT | Special Weather Statement | BYZ | 57 min |
| Aug 28, 2:54 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Aug 30, 3:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Sep 6, 5:32 PM MDT | Special Weather Statement | BYZ | 43 min |
| Sep 6, 6:15 PM MDT | Special Weather Statement | BYZ | 45 min |
| Sep 7, 9:49 AM MDT | Flash Flood Watch | BYZ | 40 hr |
| Sep 7, 2:24 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 7, 10:47 PM MDT | Special Weather Statement | BYZ | 58 min |
| Sep 8, 12:53 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Sep 8, 1:40 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 8, 4:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Sep 8, 6:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Sep 8, 8:45 PM MDT | Special Weather Statement | BYZ | 45 min |
| Sep 8, 9:34 PM MDT | Special Weather Statement | BYZ | 41 min |
| Sep 24, 11:05 PM MDT | Special Weather Statement | BYZ | 55 min |
| Oct 11, 4:07 PM MDT | Special Weather Statement | BYZ | 38 min |
| Oct 27, 3:59 PM MDT | Winter Weather Advisory | BYZ | 29 hr |
| Nov 10, 9:47 AM MST | Winter Weather Advisory | BYZ | 23 hr |
| Nov 19, 3:55 AM MST | Winter Weather Advisory | BYZ | 47 hr |
| Nov 30, 3:06 PM MST | Winter Storm Warning | BYZ | 3 days |
| Dec 1, 4:07 AM MST | Winter Storm Watch | BYZ | 24 hr |
| Dec 2, 3:51 AM MST | Winter Weather Advisory | BYZ | 47 hr |
| Dec 4, 2:47 AM MST | Winter Weather Advisory | BYZ | 20 hr |
| Dec 8, 3:59 AM MST | Wind Chill Advisory | BYZ | 31 hr |
| Dec 8, 3:59 AM MST | Winter Weather Advisory | BYZ | 65 hr |
| Dec 18, 4:00 AM MST | Winter Weather Advisory | BYZ | 36 hr |
| Dec 21, 2:57 AM MST | Winter Weather Advisory | BYZ | 41 hr |
| Dec 23, 8:15 PM MST | Freezing Rain Advisory | BYZ | 14 hr |
| Dec 28, 2:57 AM MST | Wind Chill Advisory | BYZ | 20 hr |
| Dec 31, 3:32 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.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.