Alert archive / Montana / Carbon County
Weather alerts in Carbon County, Montana, 2014
108 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Carbon County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 108
- Warnings
- 26
- Watches
- 19
- Advisories
- 26
- Busiest month
- May20 alerts
- Busiest day
- May 18, 20145 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Carbon County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 3 | 25% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Billings, MT: tornado warnings | 6 | 2 | 67% | 6 | 50% | 10 min |
| NWS Billings, MT: severe thunderstorm warnings | 120 | 56 | 53% | 151 | 77% | 25 min |
| NWS Billings, MT: flash flood warnings | 4 | 2 | 50% | 6 | 33% | 106 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 2, 3:31 PM MST | Winter Weather Advisory | BYZ | 60 hr |
| Jan 5, 4:00 AM MST | Wind Chill Advisory | BYZ | 24 hr |
| Jan 8, 2:46 PM MST | High Wind Watch | BYZ | 4 days |
| Jan 10, 3:34 PM MST | High Wind Watch | BYZ | 44 hr |
| Jan 11, 3:48 AM MST | High Wind Warning | BYZ | 67 hr |
| Jan 12, 9:12 PM MST | Winter Weather Advisory | BYZ | 42 hr |
| Jan 14, 3:47 AM MST | Winter Storm Warning | BYZ | 6 hr |
| Jan 21, 8:45 PM MST | Winter Weather Advisory | BYZ | 18 hr |
| Jan 25, 3:49 PM MST | Winter Weather Advisory | BYZ | 24 hr |
| Jan 27, 3:14 PM MST | Winter Storm Watch | BYZ | 37 hr |
| Jan 28, 3:08 PM MST | Winter Storm Warning | BYZ | 48 hr |
| Jan 31, 3:39 AM MST | Winter Storm Warning | BYZ | 23 hr |
| Jan 31, 3:39 AM MST | Winter Weather Advisory | BYZ | 28 hr |
| Feb 2, 2:43 PM MST | Winter Weather Advisory | BYZ | 43 hr |
| Feb 3, 2:33 PM MST | Wind Chill Advisory | BYZ | 69 hr |
| Feb 7, 2:59 PM MST | Winter Weather Advisory | BYZ | 48 hr |
| Feb 10, 3:48 AM MST | Winter Weather Advisory | BYZ | 39 hr |
| Feb 11, 2:32 PM MST | Special Weather Statement | BYZ | 43 min |
| Feb 16, 12:19 PM MST | Special Weather Statement | BYZ | 86 min |
| Feb 21, 2:26 PM MST | Winter Storm Watch | BYZ | 24 hr |
| Feb 22, 2:50 PM MST | Winter Storm Warning | BYZ | 65 hr |
| Feb 25, 1:03 PM MST | Winter Storm Watch | BYZ | 51 hr |
| Feb 27, 5:21 AM MST | Winter Storm Warning | BYZ | 61 hr |
| Feb 28, 9:19 AM MST | Special Weather Statement | BYZ | 71 min |
| Mar 1, 6:02 PM MST | Wind Chill Warning | BYZ | 18 hr |
| Mar 6, 5:18 PM MST | Areal Flood Advisory | BYZ | 24 hr |
| Mar 7, 12:00 PM MST | Areal Flood Warning | BYZ | 47 hr |
| Mar 7, 3:21 PM MST | Areal Flood Advisory | BYZ | 4 days |
| Mar 8, 3:41 PM MST | Winter Storm Watch | BYZ | 23 hr |
| Mar 9, 3:27 PM MDT | Winter Storm Warning | BYZ | 42 hr |
| Mar 16, 3:57 AM MDT | Winter Weather Advisory | BYZ | 48 hr |
| Mar 17, 4:54 PM MDT | Special Weather Statement | BYZ | 81 min |
| Mar 17, 8:05 PM MDT | Winter Storm Warning | BYZ | 10 hr |
| Mar 23, 3:01 AM MDT | Winter Weather Advisory | BYZ | 17 hr |
| Mar 26, 3:50 AM MDT | Winter Weather Advisory | BYZ | 23 hr |
| Mar 28, 2:10 PM MDT | Winter Storm Watch | BYZ | 38 hr |
| Mar 29, 3:31 AM MDT | Winter Storm Warning | BYZ | 56 hr |
| Apr 1, 4:17 AM MDT | Special Weather Statement | BYZ | 73 min |
| Apr 1, 5:35 AM MDT | Special Weather Statement | BYZ | 85 min |
| Apr 2, 8:11 AM MDT | Winter Weather Advisory | BYZ | 12 hr |
| Apr 11, 3:04 PM MDT | Winter Storm Watch | BYZ | 12 hr |
| Apr 12, 3:11 AM MDT | Winter Storm Warning | BYZ | 31 hr |
| Apr 15, 4:39 PM MDT | Special Weather Statement | BYZ | 51 min |
| Apr 26, 7:30 PM MDT | Special Weather Statement | BYZ | 45 min |
| Apr 26, 8:34 PM MDT | Special Weather Statement | BYZ | 86 min |
| Apr 26, 9:16 PM MDT | Areal Flood Advisory | BYZ | 12 hr |
| May 5, 4:14 AM MDT | Winter Storm Watch | BYZ | 11 hr |
| May 5, 3:05 PM MDT | Winter Storm Warning | BYZ | 50 hr |
| May 5, 5:31 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 10, 3:17 PM MDT | Winter Weather Advisory | BYZ | 15 hr |
| May 10, 3:40 PM MDT | Special Weather Statement | BYZ | 35 min |
| May 18, 12:37 PM MDT | Mesoscale Discussion | SPC | 83 min |
| May 18, 2:13 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 18, 4:24 PM MDT | Severe Thunderstorm Warning | BYZ | 51 min |
| May 18, 4:57 PM MDT | Mesoscale Discussion | SPC | 63 min |
| May 18, 5:38 PM MDT | Special Weather Statement | BYZ | 22 min |
| May 22, 3:37 PM MDT | River Flood Watch | BYZ | 4 days |
| May 23, 1:27 PM MDT | River Flood Watch | BYZ | 65 hr |
| May 26, 4:48 AM MDT | River Flood Warning | BYZ | 7 days |
| May 26, 12:43 PM MDT | River Flood Warning | BYZ | 7 days |
| May 28, 2:12 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 28, 2:47 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 28, 6:28 PM MDT | Mesoscale Discussion | SPC | 92 min |
| May 31, 2:22 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 31, 3:05 PM MDT | Special Weather Statement | BYZ | 40 min |
| May 31, 3:44 PM MDT | Special Weather Statement | BYZ | 46 min |
| Jun 3, 11:59 AM MDT | River Flood Watch | BYZ | 4 days |
| Jun 3, 11:59 AM MDT | River Flood Watch | BYZ | 5 days |
| Jun 3, 12:15 PM MDT | Special Weather Statement | RIW | 45 min |
| Jun 4, 11:27 AM MDT | Special Weather Statement | BYZ | 33 min |
| Jun 10, 1:29 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 2:19 PM MDT | Special Weather Statement | BYZ | 41 min |
| Jun 25, 7:26 PM MDT | Special Weather Statement | RIW | 49 min |
| Jun 26, 5:15 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 28, 1:37 PM MDT | Special Weather Statement | RIW | 38 min |
| Jun 28, 1:41 PM MDT | Special Weather Statement | RIW | 49 min |
| Jun 28, 1:48 PM MDT | Special Weather Statement | BYZ | 57 min |
| Jul 3, 2:46 PM MDT | Special Weather Statement | BYZ | 44 min |
| Jul 3, 3:03 PM MDT | Special Weather Statement | BYZ | 42 min |
| Jul 4, 8:38 PM MDT | Special Weather Statement | BYZ | 52 min |
| Jul 15, 11:49 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 2:38 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 4:40 PM MDT | Special Weather Statement | BYZ | 35 min |
| Jul 21, 12:25 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 22, 5:54 PM MDT | Severe Thunderstorm Warning | BYZ | 66 min |
| Jul 22, 6:26 PM MDT | Severe Thunderstorm Warning | BYZ | 64 min |
| Aug 18, 2:31 PM MDT | Special Weather Statement | BYZ | 59 min |
| Aug 18, 3:37 PM MDT | Special Weather Statement | RIW | 38 min |
| Sep 9, 3:39 AM MDT | Winter Storm Watch | BYZ | 35 hr |
| Sep 10, 3:31 AM MDT | Winter Storm Warning | BYZ | 35 hr |
| Sep 18, 4:28 PM MDT | Severe Thunderstorm Warning | BYZ | 46 min |
| Sep 18, 4:52 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Oct 15, 3:16 AM MDT | Red Flag Warning | BYZ | 17 hr |
| Nov 7, 2:42 PM MST | Winter Storm Watch | BYZ | 37 hr |
| Nov 9, 3:54 AM MST | Winter Storm Warning | BYZ | 48 hr |
| Nov 13, 3:22 PM MST | Winter Weather Advisory | BYZ | 38 hr |
| Nov 24, 3:02 PM MST | Winter Storm Warning | BYZ | 48 hr |
| Nov 24, 3:02 PM MST | Winter Weather Advisory | BYZ | 51 hr |
| Nov 28, 3:32 PM MST | Winter Weather Advisory | BYZ | 39 hr |
| Dec 2, 1:52 PM MST | Areal Flood Advisory | BYZ | 4 days |
| Dec 13, 2:34 PM MST | Winter Weather Advisory | BYZ | 43 hr |
| Dec 19, 2:45 PM MST | Winter Storm Watch | BYZ | 13 hr |
| Dec 20, 4:00 AM MST | Winter Storm Warning | BYZ | 40 hr |
| Dec 23, 2:42 PM MST | Winter Weather Advisory | BYZ | 48 hr |
| Dec 24, 3:53 AM MST | Winter Storm Warning | BYZ | 35 hr |
| Dec 27, 2:25 PM MST | Winter Weather Advisory | BYZ | 43 hr |
| Dec 28, 5:10 PM MST | Winter Storm Warning | BYZ | 16 hr |
| Dec 30, 3:56 AM MST | Winter Weather Advisory | BYZ | 29 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 | 4 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 11 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 2 |
| River Flood Watch | 4 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 16 |
| Winter Storm Watch | 10 |
| Winter Weather Advisory | 20 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 2 |
| Fire | |
| Red Flag Warning | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
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.