Alert archive / Wyoming / Laramie County
Weather alerts in Laramie County, Wyoming, 2015
312 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Laramie County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 312
- Warnings
- 74
- Watches
- 44
- Advisories
- 53
- Busiest month
- June105 alerts
- Busiest day
- June 4, 201512 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 reports fell inside a warning.
Laramie County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 33 | 11 | 67% | 19 | 53% | 21 min |
| Flash flood warnings | 2 | 2 | 0% | 11 | 91% | 107 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cheyenne, WY: tornado warnings | 10 | 4 | 60% | 17 | 47% | 18 min |
| NWS Cheyenne, WY: severe thunderstorm warnings | 184 | 85 | 54% | 207 | 83% | 20 min |
| NWS Cheyenne, WY: flash flood warnings | 22 | 11 | 50% | 29 | 93% | 95 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, 1:29 AM MST | Winter Weather Advisory | CYS | 17 hr |
| Jan 3, 1:43 AM MST | High Wind Watch | CYS | 14 hr |
| Jan 3, 3:13 PM MST | High Wind Warning | CYS | 58 hr |
| Jan 4, 1:15 AM MST | High Wind Watch | CYS | 24 hr |
| Jan 7, 3:13 AM MST | High Wind Watch | CYS | 10 hr |
| Jan 7, 1:10 PM MST | High Wind Warning | CYS | 16 hr |
| Jan 15, 3:13 AM MST | High Wind Watch | CYS | 24 hr |
| Jan 15, 1:58 PM MST | High Wind Warning | CYS | 40 hr |
| Jan 16, 3:19 AM MST | High Wind Watch | CYS | 9 hr |
| Jan 17, 5:49 AM MST | High Wind Watch | CYS | 4 hr |
| Jan 17, 9:34 AM MST | High Wind Warning | CYS | 31 hr |
| Jan 24, 1:30 AM MST | High Wind Warning | CYS | 12 hr |
| Jan 26, 1:41 AM MST | High Wind Watch | CYS | 24 hr |
| Jan 26, 1:28 PM MST | High Wind Warning | CYS | 38 hr |
| Feb 1, 4:22 AM MST | High Wind Watch | CYS | 22 hr |
| Feb 2, 2:41 AM MST | High Wind Warning | CYS | 32 hr |
| Feb 2, 8:31 PM MST | Winter Storm Watch | CYS | 6 hr |
| Feb 2, 8:31 PM MST | Winter Storm Warning | CYS | 41 hr |
| Feb 3, 2:56 AM MST | Winter Weather Advisory | CYS | 35 hr |
| Feb 5, 2:02 PM MST | High Wind Watch | CYS | 12 hr |
| Feb 5, 2:02 PM MST | High Wind Warning | CYS | 54 hr |
| Feb 6, 2:19 AM MST | High Wind Watch | CYS | 24 hr |
| Feb 8, 2:24 PM MST | High Wind Watch | CYS | 29 hr |
| Feb 9, 2:08 PM MST | High Wind Warning | CYS | 11 hr |
| Feb 13, 1:36 PM MST | Winter Storm Watch | CYS | 24 hr |
| Feb 14, 1:51 PM MST | Winter Weather Advisory | CYS | 37 hr |
| Feb 15, 10:20 AM MST | Special Weather Statement | CYS | 55 min |
| Feb 18, 2:46 PM MST | High Wind Warning | CYS | 18 hr |
| Feb 19, 2:45 PM MST | Winter Storm Watch | CYS | 11 hr |
| Feb 20, 1:52 AM MST | Winter Storm Warning | CYS | 50 hr |
| Feb 20, 1:47 PM MST | Winter Weather Advisory | CYS | 38 hr |
| Feb 25, 2:34 AM MST | Winter Weather Advisory | CYS | 18 hr |
| Feb 26, 1:27 PM MST | Winter Weather Advisory | CYS | 13 hr |
| Mar 1, 2:31 PM MST | Winter Storm Warning | CYS | 54 hr |
| Mar 2, 3:40 AM MST | Winter Weather Advisory | CYS | 41 hr |
| Mar 3, 9:10 PM MST | Wind Chill Advisory | CYS | 11 hr |
| Mar 17, 12:15 AM MDT | Dense Fog Advisory | CYS | 13 hr |
| Mar 23, 2:43 AM MDT | High Wind Watch | CYS | 24 hr |
| Mar 23, 11:24 AM MDT | High Wind Warning | CYS | 25 hr |
| Mar 28, 5:46 PM MDT | High Wind Warning | CYS | 5 hr |
| Apr 2, 3:23 AM MDT | Winter Weather Advisory | CYS | 24 hr |
| Apr 8, 3:30 AM MDT | Dense Fog Advisory | CYS | 8 hr |
| Apr 15, 3:21 AM MDT | Winter Weather Advisory | CYS | 24 hr |
| Apr 15, 7:32 PM MDT | Winter Storm Watch | CYS | 8 hr |
| Apr 16, 3:41 AM MDT | Winter Storm Warning | CYS | 67 hr |
| Apr 16, 3:41 AM MDT | Winter Weather Advisory | CYS | 67 hr |
| Apr 17, 5:21 PM MDT | Areal Flood Advisory | CYS | 6 hr |
| Apr 25, 3:17 PM MDT | Dense Fog Advisory | CYS | 11 hr |
| Apr 26, 2:10 AM MDT | Winter Weather Advisory | CYS | 25 hr |
| Apr 27, 7:10 PM MDT | Dense Fog Advisory | CYS | 8 hr |
| Apr 30, 3:20 PM MDT | Special Weather Statement | CYS | 40 min |
| Apr 30, 4:36 PM MDT | Special Weather Statement | CYS | 39 min |
| May 1, 2:47 PM MDT | Special Weather Statement | CYS | 43 min |
| May 1, 4:09 PM MDT | Special Weather Statement | CYS | 51 min |
| May 1, 4:31 PM MDT | Special Weather Statement | CYS | 44 min |
| May 1, 4:53 PM MDT | Special Weather Statement | CYS | 52 min |
| May 3, 2:30 PM MDT | Special Weather Statement | CYS | 30 min |
| May 3, 2:44 PM MDT | Special Weather Statement | CYS | 46 min |
| May 4, 4:50 AM MDT | Dense Fog Advisory | CYS | 5 hr |
| May 4, 9:38 PM MDT | Dense Fog Advisory | CYS | 20 hr |
| May 7, 4:01 AM MDT | Winter Storm Watch | CYS | 48 hr |
| May 7, 3:20 PM MDT | Special Weather Statement | CYS | 40 min |
| May 7, 3:51 PM MDT | Special Weather Statement | CYS | 39 min |
| May 7, 11:41 PM MDT | Dense Fog Advisory | CYS | 10 hr |
| May 8, 10:16 PM MDT | Winter Storm Warning | CYS | 40 hr |
| May 9, 12:18 AM MDT | Areal Flood Advisory | CYS | 6 hr |
| May 9, 10:20 AM MDT | Flash Flood Watch | CYS | 8 hr |
| May 15, 12:14 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 12:58 PM MDT | Tornado Watch | SPC | 7 hr |
| May 15, 3:13 PM MDT | Special Weather Statement | CYS | 47 min |
| May 15, 3:27 PM MDT | Special Weather Statement | CYS | 63 min |
| May 18, 11:25 AM MDT | Dense Fog Advisory | CYS | 4 hr |
| May 18, 3:25 PM MDT | Dense Fog Advisory | CYS | 12 hr |
| May 18, 3:43 PM MDT | Winter Weather Advisory | CYS | 23 hr |
| May 20, 7:46 AM MDT | Dense Fog Advisory | CYS | 7 hr |
| May 20, 4:40 PM MDT | Dense Fog Advisory | CYS | 17 hr |
| May 23, 2:02 PM MDT | Flash Flood Watch | CYS | 28 hr |
| May 24, 3:55 PM MDT | Special Weather Statement | CYS | 35 min |
| May 26, 1:36 PM MDT | Special Weather Statement | CYS | 39 min |
| May 26, 4:40 PM MDT | Special Weather Statement | CYS | 35 min |
| May 26, 6:39 PM MDT | Special Weather Statement | CYS | 36 min |
| May 27, 7:57 PM MDT | Special Weather Statement | CYS | 33 min |
| May 27, 8:38 PM MDT | Special Weather Statement | CYS | 37 min |
| May 31, 1:44 PM MDT | Special Weather Statement | CYS | 46 min |
| May 31, 7:20 PM MDT | Special Weather Statement | CYS | 40 min |
| May 31, 7:47 PM MDT | Special Weather Statement | CYS | 43 min |
| May 31, 8:15 PM MDT | Special Weather Statement | CYS | 45 min |
| Jun 1, 11:30 AM MDT | Special Weather Statement | CYS | 45 min |
| Jun 1, 12:26 PM MDT | Special Weather Statement | CYS | 34 min |
| Jun 1, 2:20 PM MDT | Special Weather Statement | CYS | 40 min |
| Jun 1, 3:04 PM MDT | Special Weather Statement | CYS | 41 min |
| Jun 1, 4:32 PM MDT | Special Weather Statement | CYS | 43 min |
| Jun 1, 4:45 PM MDT | Severe Thunderstorm Warning | CYS | 30 min |
| Jun 2, 12:37 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 3, 12:34 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jun 3, 2:03 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 3, 7:14 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jun 3, 7:21 PM MDT | Special Weather Statement | CYS | 39 min |
| Jun 3, 8:25 PM MDT | Severe Thunderstorm Warning | CYS | 50 min |
| Jun 3, 8:59 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 4, 1:37 PM MDT | Special Weather Statement | CYS | 38 min |
| Jun 4, 1:50 PM MDT | Severe Thunderstorm Warning | CYS | 40 min |
| Jun 4, 1:53 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jun 4, 2:20 PM MDT | Tornado Watch | SPC | 8 hr |
| Jun 4, 2:30 PM MDT | Severe Thunderstorm Warning | CYS | 45 min |
| Jun 4, 3:25 PM MDT | Special Weather Statement | CYS | 50 min |
| Jun 4, 4:18 PM MDT | Special Weather Statement | CYS | 42 min |
| Jun 4, 5:22 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jun 4, 6:42 PM MDT | Special Weather Statement | CYS | 48 min |
| Jun 4, 7:01 PM MDT | Severe Thunderstorm Warning | CYS | 29 min |
| Jun 4, 7:32 PM MDT | Severe Thunderstorm Warning | CYS | 21 min |
| Jun 4, 8:20 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jun 4, 8:41 PM MDT | Special Weather Statement | CYS | 49 min |
| Jun 4, 9:35 PM MDT | Special Weather Statement | CYS | 40 min |
| Jun 5, 9:43 AM MDT | Flash Flood Watch | CYS | 14 hr |
| Jun 5, 11:22 AM MDT | Special Weather Statement | CYS | 53 min |
| Jun 5, 12:49 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jun 6, 1:16 PM MDT | Special Weather Statement | CYS | 44 min |
| Jun 6, 6:45 PM MDT | Special Weather Statement | CYS | 45 min |
| Jun 6, 7:20 PM MDT | Severe Thunderstorm Warning | CYS | 55 min |
| Jun 7, 1:08 AM MDT | Special Weather Statement | CYS | 37 min |
| Jun 7, 2:19 PM MDT | Special Weather Statement | CYS | 41 min |
| Jun 7, 3:45 PM MDT | Special Weather Statement | CYS | 45 min |
| Jun 10, 3:39 AM MDT | Flash Flood Watch | CYS | 38 hr |
| Jun 11, 12:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jun 13, 6:33 PM MDT | Special Weather Statement | CYS | 27 min |
| Jun 13, 6:40 PM MDT | Severe Thunderstorm Warning | CYS | 23 min |
| Jun 13, 7:11 PM MDT | Special Weather Statement | CYS | 34 min |
| Jun 13, 7:39 PM MDT | Severe Thunderstorm Warning | CYS | 36 min |
| Jun 13, 8:19 PM MDT | Special Weather Statement | CYS | 26 min |
| Jun 13, 9:27 PM MDT | Areal Flood Advisory | CYS | 2 hr |
| Jun 13, 9:28 PM MDT | Special Weather Statement | CYS | 17 min |
| Jun 13, 9:56 PM MDT | Special Weather Statement | CYS | 49 min |
| Jun 14, 5:16 PM MDT | Severe Thunderstorm Warning | CYS | 29 min |
| Jun 14, 5:46 PM MDT | Severe Thunderstorm Warning | CYS | 44 min |
| Jun 14, 6:29 PM MDT | Severe Thunderstorm Warning | CYS | 46 min |
| Jun 14, 7:02 PM MDT | Special Weather Statement | CYS | 28 min |
| Jun 14, 7:04 PM MDT | Severe Thunderstorm Warning | CYS | 26 min |
| Jun 14, 7:26 PM MDT | Special Weather Statement | CYS | 49 min |
| Jun 14, 7:50 PM MDT | Severe Thunderstorm Warning | CYS | 25 min |
| Jun 14, 8:22 PM MDT | Special Weather Statement | CYS | 23 min |
| Jun 14, 8:36 PM MDT | Areal Flood Advisory | CYS | 4 hr |
| Jun 14, 10:03 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jun 15, 12:41 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jun 15, 2:24 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 15, 4:22 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 15, 7:29 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jun 15, 8:42 PM MDT | Special Weather Statement | CYS | 48 min |
| Jun 16, 1:12 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 2:02 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 16, 4:25 PM MDT | Special Weather Statement | CYS | 50 min |
| Jun 16, 4:30 PM MDT | Severe Thunderstorm Warning | CYS | 45 min |
| Jun 16, 4:53 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jun 16, 5:15 PM MDT | Special Weather Statement | CYS | 45 min |
| Jun 16, 7:12 PM MDT | Severe Thunderstorm Warning | CYS | 48 min |
| Jun 17, 3:11 PM MDT | Special Weather Statement | CYS | 34 min |
| Jun 17, 3:21 PM MDT | Special Weather Statement | CYS | 39 min |
| Jun 17, 3:47 PM MDT | Special Weather Statement | CYS | 28 min |
| Jun 17, 4:06 PM MDT | Severe Thunderstorm Warning | CYS | 24 min |
| Jun 17, 4:20 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Jun 17, 4:43 PM MDT | Special Weather Statement | CYS | 47 min |
| Jun 17, 4:46 PM MDT | Severe Thunderstorm Warning | CYS | 44 min |
| Jun 17, 6:10 PM MDT | Special Weather Statement | CYS | 50 min |
| Jun 17, 6:40 PM MDT | Special Weather Statement | CYS | 35 min |
| Jun 17, 7:16 PM MDT | Special Weather Statement | CYS | 44 min |
| Jun 18, 5:28 PM MDT | Severe Thunderstorm Warning | CYS | 21 min |
| Jun 23, 4:09 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Jun 24, 2:11 PM MDT | Special Weather Statement | CYS | 34 min |
| Jun 24, 2:25 PM MDT | Special Weather Statement | CYS | 35 min |
| Jun 24, 2:34 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jun 24, 2:44 PM MDT | Severe Thunderstorm Warning | CYS | 31 min |
| Jun 24, 4:53 PM MDT | Special Weather Statement | CYS | 37 min |
| Jun 25, 10:58 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 2:02 PM MDT | Special Weather Statement | CYS | 28 min |
| Jun 25, 2:10 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Jun 25, 2:30 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 25, 2:31 PM MDT | Special Weather Statement | CYS | 29 min |
| Jun 25, 2:33 PM MDT | Special Weather Statement | CYS | 27 min |
| Jun 25, 2:57 PM MDT | Special Weather Statement | CYS | 33 min |
| Jun 25, 4:51 PM MDT | Severe Thunderstorm Warning | CYS | 24 min |
| Jun 25, 7:42 PM MDT | Severe Thunderstorm Warning | CYS | 48 min |
| Jun 25, 7:55 PM MDT | Special Weather Statement | CYS | 35 min |
| Jun 28, 4:06 PM MDT | Special Weather Statement | CYS | 39 min |
| Jun 28, 4:21 PM MDT | Severe Thunderstorm Warning | CYS | 39 min |
| Jun 28, 4:59 PM MDT | Severe Thunderstorm Warning | CYS | 14 min |
| Jun 28, 5:16 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 29, 2:46 PM MDT | Special Weather Statement | CYS | 44 min |
| Jun 30, 4:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 30, 5:45 PM MDT | Severe Thunderstorm Warning | CYS | 30 min |
| Jun 30, 6:20 PM MDT | Special Weather Statement | CYS | 25 min |
| Jun 30, 8:13 PM MDT | Special Weather Statement | CYS | 32 min |
| Jun 30, 8:40 PM MDT | Special Weather Statement | CYS | 35 min |
| Jun 30, 8:54 PM MDT | Special Weather Statement | CYS | 36 min |
| Jun 30, 9:27 PM MDT | Severe Thunderstorm Warning | CYS | 33 min |
| Jul 1, 2:43 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 1, 3:18 PM MDT | Special Weather Statement | CYS | 27 min |
| Jul 1, 4:04 PM MDT | Special Weather Statement | CYS | 41 min |
| Jul 1, 4:49 PM MDT | Special Weather Statement | CYS | 41 min |
| Jul 2, 4:48 PM MDT | Severe Thunderstorm Warning | CYS | 28 min |
| Jul 3, 3:59 PM MDT | Severe Thunderstorm Warning | CYS | 61 min |
| Jul 3, 4:58 PM MDT | Severe Thunderstorm Warning | CYS | 62 min |
| Jul 3, 5:59 PM MDT | Severe Thunderstorm Warning | CYS | 46 min |
| Jul 4, 3:42 PM MDT | Special Weather Statement | CYS | 48 min |
| Jul 4, 6:01 PM MDT | Special Weather Statement | CYS | 29 min |
| Jul 4, 7:29 PM MDT | Special Weather Statement | CYS | 46 min |
| Jul 4, 8:11 PM MDT | Severe Thunderstorm Warning | CYS | 49 min |
| Jul 5, 1:17 PM MDT | Special Weather Statement | CYS | 28 min |
| Jul 5, 1:39 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jul 5, 1:59 PM MDT | Special Weather Statement | CYS | 31 min |
| Jul 5, 2:25 PM MDT | Flash Flood Warning | CYS | 6 hr |
| Jul 7, 3:16 AM MDT | Flash Flood Watch | CYS | 16 hr |
| Jul 9, 1:32 AM MDT | Dense Fog Advisory | CYS | 6 hr |
| Jul 9, 2:45 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jul 11, 12:13 AM MDT | Special Weather Statement | CYS | 32 min |
| Jul 11, 2:52 PM MDT | Special Weather Statement | CYS | 38 min |
| Jul 11, 7:25 PM MDT | Special Weather Statement | CYS | 50 min |
| Jul 13, 2:56 PM MDT | Special Weather Statement | CYS | 49 min |
| Jul 15, 2:21 PM MDT | Special Weather Statement | CYS | 39 min |
| Jul 15, 3:57 PM MDT | Special Weather Statement | CYS | 48 min |
| Jul 15, 5:13 PM MDT | Special Weather Statement | CYS | 47 min |
| Jul 15, 7:47 PM MDT | Special Weather Statement | CYS | 43 min |
| Jul 17, 3:45 PM MDT | Mesoscale Discussion | SPC | 60 min |
| Jul 17, 5:02 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 17, 6:50 PM MDT | Special Weather Statement | CYS | 55 min |
| Jul 18, 2:52 PM MDT | Special Weather Statement | CYS | 38 min |
| Jul 18, 3:29 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 3:35 PM MDT | Special Weather Statement | CYS | 40 min |
| Jul 18, 3:53 PM MDT | Severe Thunderstorm Warning | CYS | 67 min |
| Jul 21, 1:39 PM MDT | Flash Flood Warning | CYS | 6 hr |
| Jul 21, 3:24 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jul 22, 2:40 PM MDT | Special Weather Statement | CYS | 65 min |
| Jul 27, 3:57 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 8:34 PM MDT | Special Weather Statement | CYS | 56 min |
| Jul 31, 1:12 PM MDT | Special Weather Statement | CYS | 33 min |
| Jul 31, 1:24 PM MDT | Areal Flood Advisory | CYS | 4 hr |
| Jul 31, 1:33 PM MDT | Special Weather Statement | CYS | 27 min |
| Aug 14, 5:20 PM MDT | Special Weather Statement | CYS | 40 min |
| Aug 14, 6:00 PM MDT | Special Weather Statement | CYS | 45 min |
| Aug 15, 3:01 PM MDT | Special Weather Statement | CYS | 44 min |
| Aug 16, 12:08 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 16, 1:40 PM MDT | Special Weather Statement | CYS | 50 min |
| Aug 16, 2:29 PM MDT | Special Weather Statement | CYS | 46 min |
| Aug 16, 5:24 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 6:30 PM MDT | Special Weather Statement | CYS | 45 min |
| Aug 16, 7:04 PM MDT | Special Weather Statement | CYS | 41 min |
| Aug 17, 1:59 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 2:47 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 17, 6:16 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Sep 6, 9:40 PM MDT | Special Weather Statement | CYS | 35 min |
| Sep 17, 9:34 PM MDT | Special Weather Statement | CYS | 41 min |
| Sep 29, 1:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Sep 29, 4:14 PM MDT | Severe Thunderstorm Warning | CYS | 31 min |
| Sep 29, 4:26 PM MDT | Special Weather Statement | CYS | 34 min |
| Sep 29, 5:18 PM MDT | Special Weather Statement | CYS | 27 min |
| Oct 2, 1:46 AM MDT | Dense Fog Advisory | CYS | 10 hr |
| Oct 2, 4:01 PM MDT | Dense Fog Advisory | CYS | 17 hr |
| Oct 4, 2:07 AM MDT | Dense Fog Advisory | CYS | 10 hr |
| Oct 4, 8:41 PM MDT | Dense Fog Advisory | CYS | 9 hr |
| Oct 10, 2:30 AM MDT | High Wind Watch | CYS | 18 hr |
| Oct 10, 8:24 PM MDT | High Wind Warning | CYS | 23 hr |
| Oct 15, 2:06 PM MDT | Frost Advisory | CYS | 11 hr |
| Oct 15, 2:06 PM MDT | Freeze Warning | CYS | 19 hr |
| Oct 20, 5:14 PM MDT | Special Weather Statement | CYS | 31 min |
| Oct 21, 12:50 AM MDT | Dense Fog Advisory | CYS | 10 hr |
| Oct 21, 6:13 PM MDT | Dense Fog Advisory | CYS | 15 hr |
| Oct 31, 1:44 PM MDT | High Wind Warning | CYS | 26 hr |
| Nov 3, 2:21 PM MST | Winter Storm Watch | CYS | 12 hr |
| Nov 4, 2:26 AM MST | Winter Storm Warning | CYS | 24 hr |
| Nov 4, 2:26 AM MST | Winter Weather Advisory | CYS | 30 hr |
| Nov 8, 6:26 AM MST | High Wind Warning | CYS | 5 hr |
| Nov 9, 2:26 PM MST | Winter Storm Watch | CYS | 23 hr |
| Nov 10, 1:42 PM MST | Winter Storm Warning | CYS | 36 hr |
| Nov 10, 1:42 PM MST | Winter Weather Advisory | CYS | 18 hr |
| Nov 11, 1:39 PM MST | High Wind Warning | CYS | 12 hr |
| Nov 12, 1:58 AM MST | Winter Weather Advisory | CYS | 7 hr |
| Nov 12, 6:24 AM MST | High Wind Watch | CYS | 5 hr |
| Nov 12, 11:47 AM MST | High Wind Warning | CYS | 20 hr |
| Nov 15, 4:06 PM MST | Winter Weather Advisory | CYS | 41 hr |
| Nov 16, 4:54 AM MST | Winter Storm Warning | CYS | 32 hr |
| Nov 17, 9:35 AM MST | High Wind Watch | CYS | 18 hr |
| Nov 17, 9:35 AM MST | High Wind Warning | CYS | 31 hr |
| Nov 18, 12:55 PM MST | Special Weather Statement | CYS | 35 min |
| Nov 18, 3:44 PM MST | High Wind Watch | CYS | 11 hr |
| Nov 19, 2:41 AM MST | High Wind Warning | CYS | 25 hr |
| Nov 19, 2:37 PM MST | Winter Weather Advisory | CYS | 30 hr |
| Nov 20, 7:17 AM MST | Special Weather Statement | CYS | 28 min |
| Nov 25, 12:39 AM MST | Winter Storm Warning | CYS | 34 hr |
| Nov 25, 12:39 AM MST | Winter Weather Advisory | CYS | 40 hr |
| Nov 30, 2:52 AM MST | High Wind Watch | CYS | 9 hr |
| Nov 30, 11:51 AM MST | High Wind Warning | CYS | 24 hr |
| Dec 6, 12:37 AM MST | High Wind Watch | CYS | 37 hr |
| Dec 6, 1:18 PM MST | High Wind Warning | CYS | 4 days |
| Dec 8, 3:16 PM MST | High Wind Watch | CYS | 11 hr |
| Dec 10, 9:02 AM MST | High Wind Warning | CYS | 14 hr |
| Dec 10, 12:29 PM MST | Winter Storm Watch | CYS | 16 hr |
| Dec 10, 12:29 PM MST | Winter Storm Warning | CYS | 49 hr |
| Dec 11, 4:08 AM MST | Winter Weather Advisory | CYS | 42 hr |
| Dec 13, 2:35 AM MST | Freezing Fog Advisory | CYS | 2 hr |
| Dec 13, 12:44 PM MST | Winter Storm Watch | CYS | 25 hr |
| Dec 14, 4:51 AM MST | Winter Storm Warning | CYS | 46 hr |
| Dec 14, 4:51 AM MST | Winter Weather Advisory | CYS | 42 hr |
| Dec 16, 3:09 AM MST | Winter Weather Advisory | CYS | 29 hr |
| Dec 16, 2:45 PM MST | High Wind Watch | CYS | 12 hr |
| Dec 17, 2:22 AM MST | High Wind Warning | CYS | 40 hr |
| Dec 17, 3:32 PM MST | Blizzard Warning | CYS | 19 hr |
| Dec 19, 2:18 PM MST | High Wind Watch | CYS | 11 hr |
| Dec 20, 1:19 AM MST | High Wind Warning | CYS | 59 hr |
| Dec 23, 3:12 AM MST | High Wind Watch | CYS | 9 hr |
| Dec 23, 12:33 PM MST | High Wind Warning | CYS | 13 hr |
| Dec 24, 1:17 PM MST | Winter Weather Advisory | CYS | 43 hr |
| Dec 25, 10:13 PM MST | Winter Storm Warning | CYS | 7 hr |
| Dec 25, 10:13 PM MST | Winter Weather Advisory | CYS | 11 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 | 33 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 31 |
| Special Weather Statement | 110 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 9 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 12 |
| Winter Storm Watch | 9 |
| Winter Weather Advisory | 23 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 25 |
| High Wind Watch | 22 |
| Fog and smoke | |
| Dense Fog Advisory | 18 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.