Alert archive / Wyoming / Laramie County
Weather alerts in Laramie County, Wyoming, 2016
270 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 270
- Warnings
- 97
- Watches
- 43
- Advisories
- 34
- Busiest month
- July55 alerts
- Busiest day
- July 29, 201610 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Laramie County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 46 | 24 | 48% | 47 | 91% | 17 min |
| Flash flood warnings | 8 | 6 | 25% | 5 | 100% | 23 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cheyenne, WY: tornado warnings | 16 | 3 | 81% | 9 | 33% | 6 min |
| NWS Cheyenne, WY: severe thunderstorm warnings | 187 | 90 | 52% | 218 | 76% | 18 min |
| NWS Cheyenne, WY: flash flood warnings | 16 | 13 | 19% | 31 | 94% | 44 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 6, 1:12 PM MST | Winter Weather Advisory | CYS | 46 hr |
| Jan 13, 2:11 AM MST | High Wind Watch | CYS | 12 hr |
| Jan 13, 2:11 AM MST | High Wind Warning | CYS | 39 hr |
| Jan 13, 2:04 PM MST | High Wind Watch | CYS | 7 hr |
| Jan 16, 4:32 AM MST | Winter Weather Advisory | CYS | 10 hr |
| Jan 16, 2:08 PM MST | Winter Weather Advisory | CYS | 27 hr |
| Jan 19, 2:23 PM MST | High Wind Warning | CYS | 25 hr |
| Jan 23, 2:53 PM MST | Winter Weather Advisory | CYS | 46 hr |
| Jan 25, 1:32 PM MST | Special Weather Statement | CYS | 28 min |
| Jan 25, 2:12 PM MST | Special Weather Statement | CYS | 63 min |
| Jan 27, 2:11 AM MST | High Wind Watch | CYS | 23 hr |
| Jan 28, 1:35 AM MST | High Wind Warning | CYS | 50 hr |
| Jan 30, 3:01 PM MST | Winter Storm Watch | CYS | 21 hr |
| Jan 31, 11:34 AM MST | Winter Storm Warning | CYS | 48 hr |
| Feb 2, 2:43 PM MST | Winter Weather Advisory | CYS | 11 hr |
| Feb 3, 1:35 AM MST | Blizzard Warning | CYS | 33 hr |
| Feb 3, 1:35 AM MST | Winter Weather Advisory | CYS | 33 hr |
| Feb 4, 1:41 PM MST | High Wind Watch | CYS | 12 hr |
| Feb 5, 1:35 AM MST | High Wind Warning | CYS | 49 hr |
| Feb 10, 3:57 AM MST | High Wind Warning | CYS | 6 hr |
| Feb 12, 2:40 PM MST | High Wind Watch | CYS | 11 hr |
| Feb 12, 7:45 PM MST | Dense Fog Advisory | CYS | 9 hr |
| Feb 13, 2:04 AM MST | High Wind Warning | CYS | 31 hr |
| Feb 14, 2:24 AM MST | High Wind Watch | CYS | 24 hr |
| Feb 14, 3:03 PM MST | High Wind Warning | CYS | 50 hr |
| Feb 14, 5:06 PM MST | Special Weather Statement | CYS | 39 min |
| Feb 17, 2:14 AM MST | High Wind Watch | CYS | 11 hr |
| Feb 17, 1:16 PM MST | High Wind Watch | CYS | 13 hr |
| Feb 17, 1:16 PM MST | High Wind Warning | CYS | 52 hr |
| Feb 20, 2:43 PM MST | Special Weather Statement | CYS | 32 min |
| Feb 22, 3:30 AM MST | Winter Weather Advisory | CYS | 23 hr |
| Feb 23, 2:52 PM MST | High Wind Warning | CYS | 17 hr |
| Feb 25, 2:00 PM MST | High Wind Watch | CYS | 20 hr |
| Feb 26, 10:29 AM MST | High Wind Warning | CYS | 37 hr |
| Feb 29, 12:38 AM MST | High Wind Warning | CYS | 16 hr |
| Mar 1, 2:17 AM MST | High Wind Watch | CYS | 11 hr |
| Mar 1, 2:17 AM MST | High Wind Warning | CYS | 44 hr |
| Mar 13, 1:46 PM MDT | High Wind Watch | CYS | 13 hr |
| Mar 13, 1:46 PM MDT | High Wind Warning | CYS | 45 hr |
| Mar 15, 3:12 PM MDT | Winter Weather Advisory | CYS | 69 hr |
| Mar 16, 2:51 PM MDT | Winter Storm Watch | CYS | 12 hr |
| Mar 17, 2:50 AM MDT | Winter Storm Warning | CYS | 31 hr |
| Mar 21, 2:03 AM MDT | Winter Storm Watch | CYS | 34 hr |
| Mar 22, 1:21 AM MDT | Winter Storm Warning | CYS | 41 hr |
| Mar 23, 4:01 AM MDT | Blizzard Warning | CYS | 14 hr |
| Mar 28, 5:29 AM MDT | Winter Storm Watch | CYS | 33 hr |
| Mar 28, 8:32 PM MDT | Winter Storm Warning | CYS | 47 hr |
| Apr 5, 2:52 PM MDT | High Wind Warning | CYS | 6 hr |
| Apr 6, 8:44 AM MDT | High Wind Warning | CYS | 9 hr |
| Apr 10, 3:49 PM MDT | Special Weather Statement | CYS | 41 min |
| Apr 14, 1:28 AM MDT | Winter Storm Watch | CYS | 24 hr |
| Apr 14, 1:56 PM MDT | Winter Storm Warning | CYS | 3 days |
| Apr 22, 8:13 PM MDT | High Wind Watch | CYS | 18 hr |
| Apr 23, 1:52 PM MDT | High Wind Warning | CYS | 26 hr |
| Apr 23, 6:57 PM MDT | Special Weather Statement | CYS | 48 min |
| Apr 24, 8:24 PM MDT | Winter Storm Watch | CYS | 19 hr |
| Apr 25, 2:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Apr 25, 3:30 PM MDT | Winter Storm Warning | CYS | 29 hr |
| Apr 25, 4:58 PM MDT | Special Weather Statement | CYS | 32 min |
| Apr 25, 5:14 PM MDT | Severe Thunderstorm Warning | CYS | 28 min |
| Apr 25, 5:34 PM MDT | Special Weather Statement | CYS | 26 min |
| Apr 25, 5:52 PM MDT | Special Weather Statement | CYS | 23 min |
| Apr 25, 6:07 PM MDT | Special Weather Statement | CYS | 53 min |
| Apr 26, 1:39 AM MDT | Winter Weather Advisory | CYS | 13 hr |
| Apr 26, 2:45 AM MDT | Special Weather Statement | CYS | 45 min |
| Apr 27, 1:10 PM MDT | Winter Storm Watch | CYS | 24 hr |
| Apr 28, 3:03 AM MDT | Winter Storm Warning | CYS | 65 hr |
| Apr 28, 3:03 AM MDT | Winter Weather Advisory | CYS | 65 hr |
| Apr 28, 1:12 PM MDT | Winter Storm Watch | CYS | 13 hr |
| May 6, 1:44 PM MDT | Flash Flood Watch | CYS | 49 hr |
| May 7, 1:25 AM MDT | Dense Fog Advisory | CYS | 14 hr |
| May 7, 4:04 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 7, 4:16 PM MDT | Severe Thunderstorm Warning | CYS | 46 min |
| May 8, 5:01 PM MDT | Special Weather Statement | CYS | 29 min |
| May 9, 4:50 PM MDT | Special Weather Statement | CYS | 40 min |
| May 14, 1:57 AM MDT | Dense Fog Advisory | CYS | 10 hr |
| May 14, 7:54 PM MDT | Dense Fog Advisory | CYS | 15 hr |
| May 15, 6:22 PM MDT | Special Weather Statement | CYS | 38 min |
| May 15, 8:45 PM MDT | Winter Weather Advisory | CYS | 36 hr |
| May 15, 9:34 PM MDT | Dense Fog Advisory | CYS | 7 hr |
| May 19, 1:51 PM MDT | Special Weather Statement | CYS | 24 min |
| May 19, 2:13 PM MDT | Special Weather Statement | CYS | 32 min |
| May 21, 2:54 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 2:11 PM MDT | Severe Thunderstorm Warning | CYS | 34 min |
| May 25, 2:52 PM MDT | Special Weather Statement | CYS | 38 min |
| May 25, 4:40 PM MDT | Special Weather Statement | CYS | 35 min |
| May 25, 7:17 PM MDT | Special Weather Statement | CYS | 28 min |
| May 30, 11:32 AM MDT | Special Weather Statement | CYS | 43 min |
| May 30, 12:16 PM MDT | Special Weather Statement | CYS | 44 min |
| May 30, 12:41 PM MDT | Severe Thunderstorm Warning | CYS | 10 min |
| May 30, 12:55 PM MDT | Severe Thunderstorm Warning | CYS | 20 min |
| May 30, 1:07 PM MDT | Special Weather Statement | CYS | 38 min |
| Jun 1, 4:28 PM MDT | Special Weather Statement | CYS | 47 min |
| Jun 1, 6:37 PM MDT | Special Weather Statement | CYS | 38 min |
| Jun 5, 5:25 PM MDT | Special Weather Statement | CYS | 35 min |
| Jun 6, 4:24 PM MDT | Severe Thunderstorm Warning | CYS | 36 min |
| Jun 7, 1:37 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 3:23 PM MDT | Special Weather Statement | CYS | 52 min |
| Jun 7, 7:52 PM MDT | Special Weather Statement | CYS | 38 min |
| Jun 10, 4:29 PM MDT | Special Weather Statement | CYS | 46 min |
| Jun 10, 5:15 PM MDT | Special Weather Statement | CYS | 45 min |
| Jun 10, 6:15 PM MDT | Special Weather Statement | CYS | 45 min |
| Jun 10, 6:38 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jun 10, 7:06 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jun 10, 9:01 PM MDT | Special Weather Statement | CYS | 44 min |
| Jun 12, 1:08 PM MDT | Special Weather Statement | CYS | 52 min |
| Jun 12, 1:38 PM MDT | Severe Thunderstorm Warning | CYS | 52 min |
| Jun 12, 1:45 PM MDT | Severe Thunderstorm Warning | CYS | 45 min |
| Jun 12, 2:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jun 12, 2:34 PM MDT | Special Weather Statement | CYS | 41 min |
| Jun 12, 6:01 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Jun 12, 6:50 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Jun 12, 7:38 PM MDT | Severe Thunderstorm Warning | CYS | 37 min |
| Jun 12, 7:59 PM MDT | Flash Flood Warning | CYS | 9 hr |
| Jun 12, 8:11 PM MDT | Severe Thunderstorm Warning | CYS | 49 min |
| Jun 13, 10:21 AM MDT | Flash Flood Watch | CYS | 10 hr |
| Jun 13, 12:45 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 13, 2:51 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jun 13, 6:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 23, 1:45 PM MDT | Special Weather Statement | CYS | 45 min |
| Jun 24, 12:23 PM MDT | Special Weather Statement | CYS | 37 min |
| Jun 24, 5:11 PM MDT | Severe Thunderstorm Warning | CYS | 34 min |
| Jun 24, 5:30 PM MDT | Special Weather Statement | CYS | 45 min |
| Jun 24, 5:54 PM MDT | Severe Thunderstorm Warning | CYS | 36 min |
| Jun 24, 6:25 PM MDT | Special Weather Statement | CYS | 35 min |
| Jun 25, 6:09 PM MDT | Special Weather Statement | CYS | 51 min |
| Jun 25, 7:21 PM MDT | Special Weather Statement | CYS | 39 min |
| Jun 25, 7:55 PM MDT | Special Weather Statement | CYS | 50 min |
| Jun 27, 12:36 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jun 27, 1:22 PM MDT | Tornado Watch | SPC | 8 hr |
| Jun 27, 4:00 PM MDT | Mesoscale Discussion | SPC | 60 min |
| Jun 27, 6:44 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jun 28, 12:55 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 28, 1:37 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 4:09 PM MDT | Special Weather Statement | CYS | 51 min |
| Jun 28, 5:04 PM MDT | Severe Thunderstorm Warning | CYS | 26 min |
| Jun 29, 1:45 PM MDT | Special Weather Statement | CYS | 30 min |
| Jun 29, 2:52 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 29, 3:03 PM MDT | Special Weather Statement | CYS | 42 min |
| Jun 29, 3:24 PM MDT | Severe Thunderstorm Warning | CYS | 36 min |
| Jun 29, 3:55 PM MDT | Severe Thunderstorm Warning | CYS | 50 min |
| Jun 29, 4:19 PM MDT | Special Weather Statement | CYS | 41 min |
| Jun 30, 6:30 PM MDT | Flash Flood Warning | CYS | 6 hr |
| Jul 1, 3:39 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Jul 4, 5:51 PM MDT | Special Weather Statement | CYS | 39 min |
| Jul 5, 5:41 PM MDT | Special Weather Statement | CYS | 49 min |
| Jul 7, 1:40 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 3:58 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jul 8, 4:31 PM MDT | Mesoscale Discussion | SPC | 59 min |
| Jul 9, 6:24 PM MDT | Special Weather Statement | CYS | 36 min |
| Jul 10, 1:42 PM MDT | High Wind Watch | CYS | 13 hr |
| Jul 11, 2:38 AM MDT | High Wind Warning | CYS | 15 hr |
| Jul 17, 2:03 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jul 17, 2:11 PM MDT | Severe Thunderstorm Warning | CYS | 48 min |
| Jul 17, 2:58 PM MDT | Severe Thunderstorm Warning | CYS | 62 min |
| Jul 17, 3:56 PM MDT | Severe Thunderstorm Warning | CYS | 64 min |
| Jul 17, 10:22 PM MDT | Special Weather Statement | CYS | 38 min |
| Jul 18, 5:48 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jul 22, 3:25 PM MDT | Special Weather Statement | BOU | 50 min |
| Jul 23, 8:58 PM MDT | Special Weather Statement | CYS | 47 min |
| Jul 24, 1:30 PM MDT | Special Weather Statement | CYS | 45 min |
| Jul 24, 1:33 PM MDT | Severe Thunderstorm Warning | CYS | 57 min |
| Jul 24, 1:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 24, 2:42 PM MDT | Special Weather Statement | CYS | 48 min |
| Jul 24, 2:46 PM MDT | Severe Thunderstorm Warning | CYS | 59 min |
| Jul 24, 3:43 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jul 26, 2:14 PM MDT | Special Weather Statement | CYS | 46 min |
| Jul 26, 3:45 PM MDT | Special Weather Statement | CYS | 45 min |
| Jul 26, 4:08 PM MDT | Severe Thunderstorm Warning | CYS | 18 min |
| Jul 27, 2:41 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 3:22 PM MDT | Special Weather Statement | CYS | 38 min |
| Jul 27, 3:34 PM MDT | Severe Thunderstorm Warning | CYS | 26 min |
| Jul 27, 3:52 PM MDT | Severe Thunderstorm Warning | CYS | 38 min |
| Jul 27, 4:18 PM MDT | Severe Thunderstorm Warning | CYS | 27 min |
| Jul 27, 4:38 PM MDT | Severe Thunderstorm Warning | CYS | 52 min |
| Jul 27, 5:06 PM MDT | Severe Thunderstorm Warning | CYS | 24 min |
| Jul 27, 5:24 PM MDT | Severe Thunderstorm Warning | CYS | 51 min |
| Jul 27, 5:32 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Jul 27, 10:15 PM MDT | Severe Thunderstorm Warning | CYS | 19 min |
| Jul 27, 10:31 PM MDT | Severe Thunderstorm Warning | CYS | 29 min |
| Jul 28, 4:13 PM MDT | Severe Thunderstorm Warning | CYS | 32 min |
| Jul 28, 4:54 PM MDT | Severe Thunderstorm Warning | CYS | 51 min |
| Jul 28, 5:29 PM MDT | Special Weather Statement | CYS | 16 min |
| Jul 29, 12:34 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jul 29, 1:08 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 29, 2:12 PM MDT | Severe Thunderstorm Warning | CYS | 48 min |
| Jul 29, 2:32 PM MDT | Severe Thunderstorm Warning | CYS | 43 min |
| Jul 29, 2:47 PM MDT | Severe Thunderstorm Warning | CYS | 28 min |
| Jul 29, 3:13 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jul 29, 3:33 PM MDT | Severe Thunderstorm Warning | CYS | 27 min |
| Jul 29, 3:59 PM MDT | Severe Thunderstorm Warning | CYS | 46 min |
| Jul 29, 4:42 PM MDT | Severe Thunderstorm Warning | CYS | 33 min |
| Jul 29, 5:27 PM MDT | Mesoscale Discussion | SPC | 108 min |
| Jul 30, 7:48 PM MDT | Special Weather Statement | CYS | 27 min |
| Jul 30, 7:58 PM MDT | Severe Thunderstorm Warning | CYS | 30 min |
| Jul 30, 8:38 PM MDT | Special Weather Statement | CYS | 37 min |
| Jul 30, 9:18 PM MDT | Severe Thunderstorm Warning | CYS | 27 min |
| Aug 2, 1:23 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 1:33 PM MDT | Severe Thunderstorm Warning | CYS | 27 min |
| Aug 3, 2:44 PM MDT | Special Weather Statement | CYS | 46 min |
| Aug 3, 3:35 PM MDT | Special Weather Statement | CYS | 25 min |
| Aug 3, 4:15 PM MDT | Special Weather Statement | CYS | 45 min |
| Aug 7, 5:23 PM MDT | Special Weather Statement | CYS | 52 min |
| Aug 7, 5:50 PM MDT | Severe Thunderstorm Warning | CYS | 36 min |
| Aug 10, 3:45 PM MDT | Special Weather Statement | CYS | 30 min |
| Aug 15, 3:01 PM MDT | Special Weather Statement | CYS | 29 min |
| Aug 15, 3:15 PM MDT | Special Weather Statement | CYS | 45 min |
| Aug 15, 3:33 PM MDT | Special Weather Statement | CYS | 27 min |
| Aug 15, 4:02 PM MDT | Special Weather Statement | CYS | 43 min |
| Aug 15, 5:01 PM MDT | Special Weather Statement | CYS | 44 min |
| Aug 18, 6:09 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Aug 18, 6:25 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Aug 26, 2:05 PM MDT | Special Weather Statement | CYS | 25 min |
| Aug 26, 2:18 PM MDT | Severe Thunderstorm Warning | CYS | 29 min |
| Sep 3, 2:32 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Sep 4, 4:40 PM MDT | Special Weather Statement | CYS | 35 min |
| Sep 4, 5:00 PM MDT | Special Weather Statement | CYS | 45 min |
| Sep 6, 1:34 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 6, 5:59 PM MDT | Special Weather Statement | CYS | 31 min |
| Sep 6, 6:04 PM MDT | Severe Thunderstorm Warning | CYS | 26 min |
| Sep 6, 6:28 PM MDT | Severe Thunderstorm Warning | CYS | 32 min |
| Sep 13, 9:17 PM MDT | Dense Fog Advisory | CYS | 11 hr |
| Sep 14, 12:26 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 22, 11:08 PM MDT | Dense Fog Advisory | CYS | 7 hr |
| Sep 23, 1:23 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Sep 23, 2:21 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 23, 5:35 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Sep 23, 11:42 PM MDT | Winter Weather Advisory | CYS | 3 hr |
| Oct 2, 2:51 AM MDT | High Wind Watch | CYS | 25 hr |
| Oct 2, 9:34 PM MDT | High Wind Warning | CYS | 35 hr |
| Oct 4, 2:08 PM MDT | Frost Advisory | CYS | 18 hr |
| Oct 6, 1:46 PM MDT | Freeze Warning | CYS | 19 hr |
| Oct 15, 1:21 AM MDT | High Wind Watch | CYS | 13 hr |
| Oct 15, 2:47 PM MDT | High Wind Watch | CYS | 24 hr |
| Oct 15, 2:47 PM MDT | High Wind Warning | CYS | 27 hr |
| Oct 16, 2:48 PM MDT | High Wind Warning | CYS | 28 hr |
| Oct 29, 2:21 PM MDT | High Wind Watch | CYS | 23 hr |
| Oct 30, 1:36 PM MDT | High Wind Warning | CYS | 28 hr |
| Nov 16, 4:14 AM MST | Winter Storm Watch | CYS | 10 hr |
| Nov 16, 2:33 PM MST | Winter Weather Advisory | CYS | 32 hr |
| Nov 21, 2:22 AM MST | Winter Weather Advisory | CYS | 34 hr |
| Nov 23, 3:34 AM MST | High Wind Warning | CYS | 28 hr |
| Nov 26, 3:41 AM MST | High Wind Watch | CYS | 24 hr |
| Nov 26, 12:07 PM MST | High Wind Warning | CYS | 46 hr |
| Nov 29, 2:13 AM MST | High Wind Warning | CYS | 15 hr |
| Dec 1, 1:26 PM MST | High Wind Watch | CYS | 24 hr |
| Dec 2, 1:33 PM MST | High Wind Warning | CYS | 24 hr |
| Dec 3, 1:31 AM MST | High Wind Watch | CYS | 23 hr |
| Dec 3, 1:57 PM MST | High Wind Warning | CYS | 42 hr |
| Dec 6, 2:30 AM MST | Winter Weather Advisory | CYS | 30 hr |
| Dec 7, 3:26 AM MST | Wind Chill Watch | CYS | 11 hr |
| Dec 7, 6:08 AM MST | Winter Weather Advisory | CYS | 3 hr |
| Dec 7, 2:21 PM MST | Wind Chill Advisory | CYS | 19 hr |
| Dec 13, 3:01 PM MST | Winter Weather Advisory | CYS | 36 hr |
| Dec 14, 2:43 AM MST | Winter Storm Watch | CYS | 36 hr |
| Dec 15, 2:21 AM MST | High Wind Warning | CYS | 19 hr |
| Dec 15, 3:06 PM MST | Winter Storm Warning | CYS | 35 hr |
| Dec 15, 3:06 PM MST | Winter Weather Advisory | CYS | 35 hr |
| Dec 16, 1:38 PM MST | Wind Chill Warning | CYS | 21 hr |
| Dec 17, 12:45 PM MST | Wind Chill Warning | CYS | 20 hr |
| Dec 17, 12:45 PM MST | Wind Chill Advisory | CYS | 20 hr |
| Dec 17, 12:46 PM MST | High Wind Watch | CYS | 25 hr |
| Dec 18, 1:16 PM MST | High Wind Warning | CYS | 65 hr |
| Dec 23, 1:31 PM MST | High Wind Watch | CYS | 22 hr |
| Dec 24, 3:51 AM MST | Winter Weather Advisory | CYS | 57 hr |
| Dec 24, 11:29 AM MST | High Wind Warning | CYS | 4 days |
| Dec 25, 3:32 AM MST | Mesoscale Discussion | SPC | 6 hr |
| Dec 26, 2:56 AM MST | High Wind Watch | CYS | 35 hr |
| Dec 28, 7:44 PM MST | High Wind Watch | CYS | 14 hr |
| Dec 29, 10:10 AM MST | High Wind Warning | CYS | 27 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 | 46 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 24 |
| Special Weather Statement | 72 |
| Flooding | |
| Flash Flood Warning | 8 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 5 |
| Winter | |
| Blizzard Warning | 2 |
| Winter Storm Warning | 8 |
| Winter Storm Watch | 10 |
| Winter Weather Advisory | 19 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 2 |
| Wind Chill Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 30 |
| High Wind Watch | 24 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.