Alert archive / Montana / Daniels County
Weather alerts in Daniels County, Montana, 2011
147 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Daniels County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 147
- Warnings
- 54
- Watches
- 26
- Advisories
- 46
- Busiest month
- July24 alerts
- Busiest day
- June 30, 20117 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 3 tornado warnings covering Daniels County in 2011 had a tornado report inside them.
Daniels County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 25 | 15 | 40% | 11 | 91% | 28 min |
| Flash flood warnings | 2 | 2 | 0% | 3 | 67% | 24 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Glasgow, MT: tornado warnings | 12 | 3 | 75% | 2 | 100% | 22 min |
| NWS Glasgow, MT: severe thunderstorm warnings | 173 | 81 | 53% | 170 | 78% | 27 min |
| NWS Glasgow, MT: flash flood warnings | 29 | 10 | 66% | 25 | 72% | 93 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 |
|---|---|---|---|
| Dec 31, 9:20 PM MST | Wind Chill Advisory | GGW | 16 hr |
| Jan 1, 2:51 PM MST | Wind Chill Advisory | GGW | 13 hr |
| Jan 6, 3:05 PM MST | Winter Storm Watch | GGW | 24 hr |
| Jan 6, 9:11 PM MST | Winter Weather Advisory | GGW | 7 hr |
| Jan 7, 3:20 PM MST | Winter Weather Advisory | GGW | 43 hr |
| Jan 7, 9:17 PM MST | Winter Storm Warning | GGW | 30 hr |
| Jan 9, 3:00 PM MST | Wind Chill Advisory | GGW | 19 hr |
| Jan 10, 3:13 PM MST | Wind Chill Advisory | GGW | 18 hr |
| Jan 14, 3:49 AM MST | Winter Weather Advisory | GGW | 24 hr |
| Jan 17, 3:10 AM MST | Wind Chill Advisory | GGW | 8 hr |
| Jan 17, 7:24 PM MST | Winter Weather Advisory | GGW | 17 hr |
| Jan 19, 3:04 PM MST | Wind Chill Advisory | GGW | 12 hr |
| Jan 19, 9:00 PM MST | Winter Weather Advisory | GGW | 6 hr |
| Jan 20, 3:07 PM MST | Winter Storm Watch | GGW | 13 hr |
| Jan 21, 3:56 AM MST | Winter Weather Advisory | GGW | 32 hr |
| Jan 22, 2:56 PM MST | Winter Weather Advisory | GGW | 42 hr |
| Jan 25, 10:45 PM MST | Dense Fog Advisory | GGW | 11 hr |
| Jan 29, 12:33 AM MST | Winter Weather Advisory | GGW | 6 hr |
| Jan 29, 9:26 AM MST | Winter Weather Advisory | GGW | 36 hr |
| Jan 30, 2:32 PM MST | Wind Chill Advisory | GGW | 44 hr |
| Jan 31, 2:53 PM MST | Wind Chill Warning | GGW | 20 hr |
| Feb 1, 11:11 AM MST | Wind Chill Advisory | GGW | 24 hr |
| Feb 1, 8:50 PM MST | Wind Chill Warning | GGW | 14 hr |
| Feb 4, 2:30 PM MST | Winter Weather Advisory | GGW | 29 hr |
| Feb 6, 3:21 PM MST | Wind Chill Advisory | GGW | 43 hr |
| Feb 7, 2:57 PM MST | Wind Chill Warning | GGW | 19 hr |
| Feb 8, 2:28 PM MST | Wind Chill Advisory | GGW | 20 hr |
| Feb 8, 9:04 PM MST | Winter Weather Advisory | GGW | 14 hr |
| Feb 10, 3:26 AM MST | Winter Weather Advisory | GGW | 31 hr |
| Feb 11, 2:56 PM MST | High Wind Warning | GGW | 47 hr |
| Feb 12, 3:00 PM MST | High Wind Watch | GGW | 12 hr |
| Feb 13, 2:01 PM MST | High Wind Warning | GGW | 4 hr |
| Feb 15, 2:22 PM MST | Winter Storm Watch | GGW | 25 hr |
| Feb 16, 3:16 PM MST | Winter Weather Advisory | GGW | 23 hr |
| Feb 17, 5:10 AM MST | Winter Storm Warning | GGW | 14 hr |
| Feb 17, 5:47 PM MST | Wind Chill Advisory | GGW | 17 hr |
| Feb 19, 3:20 AM MST | Wind Chill Watch | GGW | 11 hr |
| Feb 19, 2:30 PM MST | Wind Chill Advisory | GGW | 43 hr |
| Feb 22, 2:50 PM MST | Winter Weather Advisory | GGW | 13 hr |
| Feb 23, 3:23 AM MST | Wind Chill Advisory | GGW | 57 hr |
| Feb 25, 2:31 PM MST | Wind Chill Advisory | GGW | 22 hr |
| Feb 28, 3:16 AM MST | Wind Chill Advisory | GGW | 12 hr |
| Feb 28, 2:53 PM MST | Winter Weather Advisory | GGW | 20 hr |
| Mar 1, 11:00 AM MST | Wind Chill Advisory | GGW | 27 hr |
| Mar 5, 2:24 PM MST | Winter Weather Advisory | GGW | 13 hr |
| Mar 20, 3:44 AM MDT | Winter Storm Watch | GGW | 36 hr |
| Mar 21, 3:50 PM MDT | Blizzard Warning | GGW | 18 hr |
| Mar 22, 10:17 AM MDT | Winter Storm Warning | GGW | 28 hr |
| Apr 1, 3:50 AM MDT | Winter Storm Watch | GGW | 24 hr |
| Apr 2, 3:26 AM MDT | Winter Storm Warning | GGW | 34 hr |
| Apr 11, 2:14 PM MDT | Areal Flood Advisory | GGW | 5 days |
| Apr 14, 4:12 AM MDT | Winter Weather Advisory | GGW | 17 hr |
| Apr 16, 2:24 PM MDT | Winter Weather Advisory | GGW | 24 hr |
| Apr 29, 3:16 PM MDT | Winter Weather Advisory | GGW | 12 hr |
| Apr 30, 10:34 AM MDT | High Wind Warning | GGW | 7 hr |
| May 17, 9:01 AM MDT | Flood Watch | GGW | 3 hr |
| May 17, 11:53 AM MDT | Areal Flood Warning | GGW | 48 hr |
| May 18, 2:47 PM MDT | Flood Watch | GGW | 44 hr |
| May 20, 10:19 AM MDT | Areal Flood Warning | GGW | 6 days |
| May 27, 3:24 AM MDT | Flood Watch | GGW | 4 days |
| May 30, 2:51 AM MDT | High Wind Watch | GGW | 18 hr |
| Jun 2, 1:54 PM MDT | Mesoscale Discussion | SPC | 66 min |
| Jun 2, 2:09 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 2, 4:37 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 7, 4:22 AM MDT | Areal Flood Warning | GGW | 64 hr |
| Jun 11, 6:48 PM MDT | Special Weather Statement | GGW | 57 min |
| Jun 11, 10:08 PM MDT | Flash Flood Warning | GGW | 3 hr |
| Jun 12, 9:44 AM MDT | Flash Flood Watch | GGW | 11 hr |
| Jun 13, 2:35 PM MDT | Flash Flood Watch | GGW | 21 hr |
| Jun 16, 3:37 AM MDT | Flash Flood Watch | GGW | 40 hr |
| Jun 17, 4:26 PM MDT | High Wind Warning | GGW | 6 hr |
| Jun 17, 6:30 PM MDT | Flash Flood Warning | GGW | 8 hr |
| Jun 17, 11:37 PM MDT | Areal Flood Warning | GGW | 6 days |
| Jun 18, 3:01 PM MDT | Flash Flood Watch | GGW | 36 hr |
| Jun 20, 3:49 AM MDT | Dense Fog Advisory | GGW | 5 hr |
| Jun 21, 2:54 PM MDT | Special Weather Statement | GGW | 36 min |
| Jun 29, 6:17 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jun 29, 7:03 PM MDT | Tornado Watch | SPC | 4 hr |
| Jun 29, 8:11 PM MDT | Tornado Warning | GGW | 23 min |
| Jun 29, 8:23 PM MDT | Severe Thunderstorm Warning | GGW | 52 min |
| Jun 29, 9:03 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jun 29, 9:07 PM MDT | Severe Thunderstorm Warning | GGW | 53 min |
| Jun 29, 9:22 PM MDT | Tornado Warning | GGW | 40 min |
| Jul 3, 7:58 PM MDT | Severe Thunderstorm Warning | GGW | 62 min |
| Jul 3, 8:02 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Jul 3, 8:41 PM MDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 3, 10:30 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 8, 9:49 PM MDT | Severe Thunderstorm Warning | GGW | 41 min |
| Jul 14, 12:39 AM MDT | Special Weather Statement | GGW | 66 min |
| Jul 14, 1:56 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 14, 6:33 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jul 14, 9:44 PM MDT | Severe Thunderstorm Warning | GGW | 61 min |
| Jul 18, 10:57 PM MDT | Special Weather Statement | GGW | 63 min |
| Jul 19, 9:25 PM MDT | Severe Thunderstorm Warning | GGW | 29 min |
| Jul 22, 1:06 PM MDT | Mesoscale Discussion | SPC | 24 min |
| Jul 22, 1:25 PM MDT | Tornado Watch | SPC | 8 hr |
| Jul 22, 2:46 PM MDT | Severe Thunderstorm Warning | GGW | 44 min |
| Jul 22, 3:29 PM MDT | Severe Thunderstorm Warning | GGW | 61 min |
| Jul 22, 4:35 PM MDT | Severe Thunderstorm Warning | GGW | 55 min |
| Jul 22, 5:00 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jul 22, 5:43 PM MDT | Severe Thunderstorm Warning | GGW | 21 min |
| Jul 26, 1:07 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jul 26, 2:43 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 26, 3:24 PM MDT | Severe Thunderstorm Warning | GGW | 66 min |
| Jul 29, 4:46 PM MDT | Mesoscale Discussion | SPC | 59 min |
| Jul 29, 4:50 PM MDT | Severe Thunderstorm Warning | GGW | 43 min |
| Jul 29, 5:02 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 2, 3:34 PM MDT | Severe Thunderstorm Warning | GGW | 56 min |
| Aug 2, 4:29 PM MDT | Severe Thunderstorm Warning | GGW | 61 min |
| Aug 4, 7:36 PM MDT | Flash Flood Watch | GGW | 24 hr |
| Aug 5, 3:18 AM MDT | Special Weather Statement | GGW | 57 min |
| Aug 5, 4:11 AM MDT | Severe Thunderstorm Warning | GGW | 64 min |
| Aug 5, 5:30 AM MDT | Special Weather Statement | GGW | 60 min |
| Aug 11, 3:40 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Aug 14, 5:56 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Aug 14, 6:58 PM MDT | Severe Thunderstorm Warning | GGW | 62 min |
| Aug 14, 7:13 PM MDT | Tornado Warning | GGW | 40 min |
| Aug 14, 7:58 PM MDT | Severe Thunderstorm Warning | GGW | 62 min |
| Aug 14, 8:54 PM MDT | Severe Thunderstorm Warning | GGW | 36 min |
| Aug 14, 9:20 PM MDT | Severe Thunderstorm Warning | GGW | 42 min |
| Aug 15, 10:07 PM MDT | Special Weather Statement | GGW | 53 min |
| Aug 22, 2:53 AM MDT | Red Flag Warning | GGW | 17 hr |
| Aug 23, 2:48 AM MDT | Red Flag Warning | GGW | 18 hr |
| Aug 24, 2:11 PM MDT | Fire Weather Watch | GGW | 13 hr |
| Aug 25, 3:35 AM MDT | Red Flag Warning | GGW | 17 hr |
| Aug 27, 6:30 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Aug 27, 8:12 PM MDT | Severe Thunderstorm Warning | GGW | 63 min |
| Aug 27, 9:10 PM MDT | Severe Thunderstorm Warning | GGW | 65 min |
| Aug 31, 2:53 AM MDT | Special Weather Statement | GGW | 67 min |
| Aug 31, 6:50 PM MDT | Severe Thunderstorm Warning | GGW | 55 min |
| Aug 31, 7:15 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Aug 31, 7:39 PM MDT | Severe Thunderstorm Warning | GGW | 81 min |
| Sep 27, 2:49 PM MDT | Red Flag Warning | GGW | 29 hr |
| Oct 1, 3:41 AM MDT | Red Flag Warning | GGW | 23 hr |
| Nov 3, 2:37 PM MDT | Winter Storm Watch | GGW | 37 hr |
| Nov 5, 3:41 AM MDT | Winter Storm Warning | GGW | 24 hr |
| Nov 5, 3:41 AM MDT | Winter Weather Advisory | GGW | 38 hr |
| Nov 17, 2:55 PM MST | Wind Chill Advisory | GGW | 43 hr |
| Nov 19, 2:57 PM MST | Wind Chill Advisory | GGW | 19 hr |
| Nov 25, 3:54 AM MST | Dense Fog Advisory | GGW | 8 hr |
| Nov 29, 2:33 PM MST | Winter Weather Advisory | GGW | 37 hr |
| Dec 3, 3:18 AM MST | Winter Weather Advisory | GGW | 38 hr |
| Dec 12, 9:27 PM MST | Dense Fog Advisory | GGW | 35 hr |
| Dec 16, 8:26 AM MST | Dense Fog Advisory | GGW | 18 hr |
| Dec 26, 2:41 AM MST | High Wind Warning | GGW | 12 hr |
| Dec 30, 3:23 AM MST | High Wind Watch | GGW | 23 hr |
| Dec 31, 2:45 AM MST | High Wind Warning | GGW | 12 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 archive20102012
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.