Alert archive / Montana / Garfield County
Weather alerts in Garfield County, Montana, 2011
243 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Garfield County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 243
- Warnings
- 74
- Watches
- 35
- Advisories
- 109
- Busiest month
- July52 alerts
- Busiest day
- July 26, 201112 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 1 tornado warnings covering Garfield County in 2011 had a tornado report inside them.
Garfield County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 36 | 15 | 58% | 13 | 85% | 24 min |
| Flash flood warnings | 5 | 4 | 20% | 1 | 100% | 0 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 |
|---|---|---|---|
| Jan 2, 11:13 AM MST | Winter Weather Advisory | GGW | 17 hr |
| Jan 6, 3:05 PM MST | Winter Storm Watch | GGW | 24 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 10, 7:54 PM MST | Winter Weather Advisory | GGW | 7 hr |
| Jan 14, 3:49 AM MST | Winter Weather Advisory | GGW | 24 hr |
| Jan 16, 3:17 AM MST | Freezing Rain Advisory | GGW | 23 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 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, 7:40 AM MST | Blizzard Warning | GGW | 4 hr |
| Jan 22, 10:06 AM MST | Winter Weather Advisory | GGW | 3 hr |
| Jan 28, 2:07 PM MST | Areal Flood Advisory | GGW | 52 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 5, 8:42 PM MST | Winter Storm Watch | GGW | 19 hr |
| Feb 6, 3:21 PM MST | Winter Weather Advisory | GGW | 26 hr |
| Feb 6, 3:53 PM MST | Areal Flood Advisory | GGW | 30 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 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, 12:12 AM MST | Areal Flood Advisory | GGW | 36 hr |
| Feb 14, 11:36 AM MST | Areal Flood Advisory | GGW | 4 hr |
| Feb 14, 2:49 PM MST | Areal Flood Warning | GGW | 5 days |
| 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, 5:47 PM MST | Wind Chill Advisory | GGW | 17 hr |
| Feb 18, 2:29 PM MST | Winter Storm Watch | GGW | 24 hr |
| Feb 19, 1:12 PM MST | Areal Flood Advisory | GGW | 54 hr |
| Feb 19, 2:30 PM MST | Winter Weather Advisory | GGW | 31 hr |
| Feb 20, 3:19 PM MST | Wind Chill Advisory | GGW | 6 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, 2:53 PM MST | Winter Weather Advisory | GGW | 20 hr |
| Mar 1, 11:00 AM MST | Wind Chill Advisory | GGW | 27 hr |
| Mar 11, 7:11 PM MST | Areal Flood Advisory | GGW | 19 hr |
| Mar 12, 2:37 PM MST | Areal Flood Warning | GGW | 8 days |
| Mar 16, 8:17 AM MDT | Areal Flood Warning | GGW | 5 days |
| Mar 17, 3:10 PM MDT | Flash Flood Warning | GGW | 6 hr |
| Mar 21, 8:15 AM MDT | Areal Flood Warning | GGW | 4 hr |
| Mar 21, 12:40 PM MDT | Areal Flood Advisory | GGW | 21 hr |
| Mar 21, 3:50 PM MDT | Winter Weather Advisory | GGW | 46 hr |
| Apr 1, 3:50 AM MDT | Winter Storm Watch | GGW | 24 hr |
| Apr 2, 3:26 AM MDT | Winter Weather Advisory | GGW | 34 hr |
| Apr 7, 3:40 AM MDT | Winter Weather Advisory | GGW | 35 hr |
| Apr 17, 3:09 PM MDT | Winter Storm Watch | GGW | 24 hr |
| Apr 18, 3:03 PM MDT | Winter Weather Advisory | GGW | 29 hr |
| Apr 22, 4:07 AM MDT | Winter Weather Advisory | GGW | 11 hr |
| Apr 29, 2:39 PM MDT | Lake Wind Advisory | GGW | 29 hr |
| Apr 30, 10:34 AM MDT | High Wind Warning | GGW | 7 hr |
| May 3, 11:42 AM MDT | Lake Wind Advisory | GGW | 15 hr |
| May 4, 3:43 AM MDT | Lake Wind Advisory | GGW | 17 hr |
| May 5, 2:24 PM MDT | Lake Wind Advisory | GGW | 29 hr |
| May 8, 2:53 PM MDT | Lake Wind Advisory | GGW | 53 hr |
| May 9, 8:39 PM MDT | Flood Watch | GGW | 23 hr |
| May 10, 3:24 AM MDT | Areal Flood Warning | GGW | 6 hr |
| May 10, 8:31 AM MDT | Areal Flood Advisory | GGW | 23 hr |
| May 10, 9:08 AM MDT | Areal Flood Warning | GGW | 24 hr |
| May 10, 12:04 PM MDT | Areal Flood Warning | GGW | 12 hr |
| May 11, 8:09 AM MDT | Areal Flood Warning | GGW | 70 hr |
| May 14, 4:00 AM MDT | High Wind Watch | GGW | 24 hr |
| May 14, 4:00 AM MDT | Lake Wind Advisory | GGW | 62 hr |
| May 14, 5:55 AM MDT | Areal Flood Advisory | GGW | 50 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 19, 8:19 PM MDT | Lake Wind Advisory | GGW | 27 hr |
| May 20, 10:06 AM MDT | Areal Flood Warning | GGW | 67 hr |
| May 21, 4:00 AM MDT | Lake Wind Advisory | GGW | 17 hr |
| May 23, 4:16 AM MDT | Areal Flood Warning | GGW | 36 days |
| May 23, 2:41 PM MDT | Lake Wind Advisory | GGW | 29 hr |
| May 25, 3:30 AM MDT | Lake Wind Advisory | GGW | 39 hr |
| May 27, 2:29 AM MDT | Lake Wind Advisory | GGW | 18 hr |
| May 27, 3:24 AM MDT | Flood Watch | GGW | 4 days |
| May 28, 3:37 AM MDT | Lake Wind Advisory | GGW | 16 hr |
| May 29, 3:04 AM MDT | Lake Wind Advisory | GGW | 42 hr |
| May 30, 9:17 PM MDT | Lake Wind Advisory | GGW | 17 hr |
| Jun 1, 3:38 AM MDT | Lake Wind Advisory | GGW | 23 hr |
| Jun 2, 9:34 AM MDT | Lake Wind Advisory | GGW | 35 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, 2:16 PM MDT | Severe Thunderstorm Warning | GGW | 59 min |
| Jun 2, 2:20 PM MDT | Severe Thunderstorm Warning | GGW | 43 min |
| Jun 2, 2:55 PM MDT | Special Weather Statement | GGW | 65 min |
| Jun 2, 3:50 PM MDT | Severe Thunderstorm Warning | GGW | 25 min |
| Jun 2, 4:08 PM MDT | Severe Thunderstorm Warning | GGW | 52 min |
| Jun 6, 3:14 AM MDT | Lake Wind Advisory | GGW | 43 hr |
| Jun 6, 5:46 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 6, 8:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 6, 10:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 7, 12:13 AM MDT | Special Weather Statement | GGW | 47 min |
| Jun 7, 9:22 AM MDT | Flash Flood Warning | GGW | 3 hr |
| Jun 7, 11:51 AM MDT | Flash Flood Warning | GGW | 9 hr |
| Jun 9, 10:02 AM MDT | Lake Wind Advisory | GGW | 11 hr |
| Jun 11, 12:55 PM MDT | Severe Thunderstorm Warning | GGW | 55 min |
| Jun 11, 6:53 PM MDT | Special Weather Statement | GGW | 67 min |
| Jun 13, 2:35 PM MDT | Flash Flood Watch | GGW | 21 hr |
| Jun 14, 12:00 PM MDT | Lake Wind Advisory | GGW | 7 hr |
| Jun 16, 3:37 AM MDT | Flash Flood Watch | GGW | 40 hr |
| Jun 17, 10:26 AM MDT | Lake Wind Advisory | GGW | 10 hr |
| Jun 23, 4:01 AM MDT | Lake Wind Advisory | GGW | 20 hr |
| Jun 23, 2:57 PM MDT | Flash Flood Watch | GGW | 13 hr |
| Jun 23, 8:00 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jun 23, 9:29 PM MDT | Severe Thunderstorm Warning | GGW | 61 min |
| Jun 29, 3:46 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 6:17 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 2, 6:45 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jul 2, 7:40 PM MDT | Severe Thunderstorm Warning | GGW | 45 min |
| Jul 3, 12:31 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 4:08 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 3, 6:29 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 8:02 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Jul 5, 5:36 PM MDT | Severe Thunderstorm Warning | GGW | 54 min |
| Jul 5, 6:23 PM MDT | Severe Thunderstorm Warning | GGW | 52 min |
| Jul 5, 7:15 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jul 5, 8:02 PM MDT | Severe Thunderstorm Warning | GGW | 58 min |
| Jul 7, 9:59 AM MDT | Mesoscale Discussion | SPC | 91 min |
| Jul 7, 10:27 AM MDT | Severe Thunderstorm Warning | GGW | 40 min |
| Jul 8, 2:46 AM MDT | Lake Wind Advisory | GGW | 13 hr |
| Jul 8, 7:16 PM MDT | Severe Thunderstorm Warning | GGW | 59 min |
| Jul 8, 8:15 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jul 9, 3:10 AM MDT | Lake Wind Advisory | GGW | 17 hr |
| Jul 11, 3:50 AM MDT | Lake Wind Advisory | GGW | 53 hr |
| Jul 13, 8:44 PM MDT | Special Weather Statement | GGW | 31 min |
| Jul 14, 1:56 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 14, 5:52 PM MDT | Severe Thunderstorm Warning | GGW | 53 min |
| Jul 14, 6:33 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jul 14, 6:43 PM MDT | Severe Thunderstorm Warning | GGW | 62 min |
| Jul 14, 7:19 PM MDT | Flash Flood Warning | GGW | 3 hr |
| Jul 14, 7:58 PM MDT | Severe Thunderstorm Warning | GGW | 62 min |
| Jul 15, 6:26 PM MDT | Mesoscale Discussion | SPC | 64 min |
| Jul 15, 6:36 PM MDT | Severe Thunderstorm Warning | GGW | 54 min |
| Jul 16, 4:14 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jul 16, 7:53 PM MDT | Severe Thunderstorm Warning | GGW | 67 min |
| Jul 16, 8:52 PM MDT | Severe Thunderstorm Warning | GGW | 53 min |
| Jul 19, 3:18 PM MDT | Lake Wind Advisory | GGW | 27 hr |
| Jul 22, 1:06 PM MDT | Mesoscale Discussion | SPC | 24 min |
| Jul 22, 1:25 PM MDT | Tornado Watch | SPC | 8 hr |
| Jul 22, 3:12 PM MDT | Severe Thunderstorm Warning | GGW | 63 min |
| Jul 22, 3:30 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jul 22, 4:17 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jul 22, 4:23 PM MDT | Severe Thunderstorm Warning | GGW | 67 min |
| Jul 22, 5:07 PM MDT | Flash Flood Warning | GGW | 2 hr |
| Jul 25, 5:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 5:47 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 25, 7:37 PM MDT | Severe Thunderstorm Warning | GGW | 68 min |
| Jul 25, 8:00 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jul 25, 8:51 PM MDT | Tornado Warning | GGW | 24 min |
| Jul 25, 9:11 PM MDT | Severe Thunderstorm Warning | GGW | 64 min |
| Jul 25, 11:45 PM MDT | Special Weather Statement | GGW | 60 min |
| Jul 26, 1:07 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jul 26, 2:18 PM MDT | Severe Thunderstorm Warning | GGW | 57 min |
| Jul 26, 2:43 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 26, 3:11 PM MDT | Severe Thunderstorm Warning | GGW | 36 min |
| Jul 26, 3:54 PM MDT | Severe Thunderstorm Warning | GGW | 66 min |
| Jul 26, 4:56 PM MDT | Severe Thunderstorm Warning | GGW | 64 min |
| Jul 26, 5:53 PM MDT | Severe Thunderstorm Warning | GGW | 37 min |
| Jul 26, 6:12 PM MDT | Severe Thunderstorm Warning | GGW | 48 min |
| Aug 4, 2:24 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Aug 4, 7:36 PM MDT | Flash Flood Watch | GGW | 24 hr |
| Aug 5, 6:09 AM MDT | Lake Wind Advisory | GGW | 8 hr |
| Aug 8, 11:32 AM MDT | Lake Wind Advisory | GGW | 8 hr |
| Aug 11, 3:16 PM MDT | Severe Thunderstorm Warning | GGW | 59 min |
| Aug 11, 3:40 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Aug 15, 3:11 PM MDT | Lake Wind Advisory | GGW | 23 hr |
| Aug 17, 3:00 PM MDT | Lake Wind Advisory | GGW | 26 hr |
| Aug 21, 3:39 AM MDT | Fire Weather Watch | GGW | 23 hr |
| Aug 21, 7:38 PM MDT | Special Weather Statement | GGW | 67 min |
| Aug 22, 2:53 AM MDT | Red Flag Warning | GGW | 17 hr |
| Aug 22, 2:35 PM MDT | Lake Wind Advisory | GGW | 30 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 25, 3:36 AM MDT | Lake Wind Advisory | GGW | 17 hr |
| Aug 29, 3:10 AM MDT | Lake Wind Advisory | GGW | 16 hr |
| Aug 29, 2:34 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 31, 3:33 AM MDT | Lake Wind Advisory | GGW | 32 hr |
| Aug 31, 2:20 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 31, 6:53 PM MDT | Severe Thunderstorm Warning | GGW | 67 min |
| Sep 1, 2:38 PM MDT | Lake Wind Advisory | GGW | 37 hr |
| Sep 6, 3:05 AM MDT | Red Flag Warning | GGW | 17 hr |
| Sep 11, 3:00 AM MDT | Lake Wind Advisory | GGW | 31 hr |
| Sep 11, 3:03 AM MDT | Red Flag Warning | GGW | 18 hr |
| Sep 14, 3:03 PM MDT | Lake Wind Advisory | GGW | 36 hr |
| Sep 18, 3:26 AM MDT | Lake Wind Advisory | GGW | 15 hr |
| Sep 18, 6:25 PM MDT | Lake Wind Advisory | GGW | 33 hr |
| Sep 19, 1:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 20, 3:46 AM MDT | Lake Wind Advisory | GGW | 6 hr |
| Sep 22, 2:25 PM MDT | Fire Weather Watch | GGW | 12 hr |
| Sep 23, 2:53 AM MDT | Red Flag Warning | GGW | 17 hr |
| Sep 24, 2:54 PM MDT | Fire Weather Watch | GGW | 12 hr |
| Sep 25, 3:21 AM MDT | Red Flag Warning | GGW | 17 hr |
| Sep 25, 2:42 PM MDT | Lake Wind Advisory | GGW | 27 hr |
| Sep 27, 2:27 PM MDT | Lake Wind Advisory | GGW | 30 hr |
| Sep 27, 2:49 PM MDT | Red Flag Warning | GGW | 29 hr |
| Sep 30, 2:19 PM MDT | Fire Weather Watch | GGW | 13 hr |
| Oct 1, 3:41 AM MDT | Red Flag Warning | GGW | 23 hr |
| Oct 3, 2:42 PM MDT | Red Flag Warning | GGW | 29 hr |
| Oct 3, 3:05 PM MDT | Lake Wind Advisory | GGW | 27 hr |
| Oct 6, 2:57 PM MDT | High Wind Watch | GGW | 13 hr |
| Oct 7, 4:23 AM MDT | High Wind Warning | GGW | 13 hr |
| Oct 7, 5:10 PM MDT | Lake Wind Advisory | GGW | 10 hr |
| Oct 11, 2:54 PM MDT | Lake Wind Advisory | GGW | 29 hr |
| Oct 13, 2:08 AM MDT | Lake Wind Advisory | GGW | 16 hr |
| Oct 21, 2:26 PM MDT | Lake Wind Advisory | GGW | 27 hr |
| Oct 23, 3:02 AM MDT | Lake Wind Advisory | GGW | 16 hr |
| Oct 26, 2:36 PM MDT | Lake Wind Advisory | GGW | 24 hr |
| Oct 28, 2:19 PM MDT | Lake Wind Advisory | GGW | 29 hr |
| Oct 31, 2:27 PM MDT | Lake Wind Advisory | GGW | 5 hr |
| Nov 2, 3:37 AM MDT | Lake Wind Advisory | GGW | 15 hr |
| Nov 2, 10:59 PM MDT | Lake Wind Advisory | GGW | 13 hr |
| Nov 5, 3:41 AM MDT | Winter Weather Advisory | GGW | 38 hr |
| Nov 6, 8:53 AM MST | Lake Wind Advisory | GGW | 8 hr |
| Nov 8, 1:23 PM MST | Lake Wind Advisory | GGW | 4 hr |
| Nov 11, 2:33 PM MST | Lake Wind Advisory | GGW | 27 hr |
| Nov 13, 3:45 AM MST | Lake Wind Advisory | GGW | 14 hr |
| Nov 14, 3:32 AM MST | Lake Wind Advisory | GGW | 11 hr |
| Nov 15, 3:30 AM MST | Lake Wind Advisory | GGW | 14 hr |
| Nov 17, 2:54 AM MST | Lake Wind Advisory | GGW | 20 hr |
| Nov 18, 4:02 AM MST | Lake Wind Advisory | GGW | 15 hr |
| Nov 18, 3:03 PM MST | Winter Weather Advisory | GGW | 24 hr |
| Nov 23, 10:06 AM MST | Lake Wind Advisory | GGW | 8 hr |
| Nov 25, 2:44 AM MST | Lake Wind Advisory | GGW | 31 hr |
| Nov 26, 2:53 PM MST | Lake Wind Advisory | GGW | 30 hr |
| Nov 26, 2:56 PM MST | Fire Weather Watch | GGW | 12 hr |
| Nov 27, 3:15 AM MST | Red Flag Warning | GGW | 17 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 21, 1:49 AM MST | Winter Weather Advisory | GGW | 13 hr |
| Dec 26, 2:41 AM MST | High Wind Warning | GGW | 12 hr |
| Dec 28, 3:38 AM MST | High Wind Watch | GGW | 24 hr |
| Dec 29, 4:05 AM MST | High Wind Warning | GGW | 19 hr |
| Dec 30, 3:23 AM MST | High Wind Watch | GGW | 23 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.