Alert archive / Wyoming / Converse County
Weather alerts in Converse County, Wyoming, 2024
127 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Converse County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 127
- Warnings
- 50
- Watches
- 38
- Advisories
- 17
- Busiest month
- September24 alerts
- Busiest day
- June 21, 20244 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Converse County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 4 | 50% | 3 | 67% | 8 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cheyenne, WY: tornado warnings | 5 | 3 | 40% | 3 | 100% | 3 min |
| NWS Cheyenne, WY: severe thunderstorm warnings | 208 | 98 | 53% | 201 | 82% | 18 min |
| NWS Cheyenne, WY: flash flood warnings | 18 | 11 | 39% | 21 | 90% | 82 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 7, 3:39 AM MST | Winter Weather Advisory | CYS | 28 hr |
| Jan 8, 2:09 AM MST | High Wind Watch | CYS | 24 hr |
| Jan 8, 2:09 AM MST | High Wind Warning | CYS | 64 hr |
| Jan 10, 1:48 AM MST | Wind Chill Watch | CYS | 26 hr |
| Jan 11, 3:19 AM MST | Wind Chill Warning | CYS | 5 days |
| Jan 11, 3:19 AM MST | Winter Weather Advisory | CYS | 50 hr |
| Jan 13, 2:45 PM MST | Winter Weather Advisory | CYS | 44 hr |
| Jan 15, 2:57 PM MST | Winter Weather Advisory | CYS | 3 days |
| Jan 18, 12:57 AM MST | Wind Chill Advisory | CYS | 33 hr |
| Feb 1, 1:55 PM MST | Winter Storm Watch | CYS | 13 hr |
| Feb 1, 1:55 PM MST | Winter Weather Advisory | CYS | 68 hr |
| Feb 15, 2:21 AM MST | Winter Weather Advisory | CYS | 45 hr |
| Feb 17, 2:06 PM MST | High Wind Warning | CYS | 42 hr |
| Feb 23, 2:25 AM MST | High Wind Watch | CYS | 48 hr |
| Feb 23, 10:11 AM MST | High Wind Warning | CYS | 3 days |
| Mar 1, 2:05 PM MST | High Wind Watch | CYS | 10 hr |
| Mar 1, 2:17 PM MST | Red Flag Warning | CYS | 28 hr |
| Mar 1, 11:44 PM MST | High Wind Warning | CYS | 32 hr |
| Mar 9, 1:35 PM MST | Red Flag Warning | CYS | 27 hr |
| Mar 10, 2:32 PM MDT | Fire Weather Watch | CYS | 6 hr |
| Mar 10, 9:01 PM MDT | Red Flag Warning | CYS | 21 hr |
| Mar 12, 2:42 AM MDT | Winter Weather Advisory | CYS | 3 days |
| Mar 20, 1:42 PM MDT | Fire Weather Watch | CYS | 24 hr |
| Mar 21, 3:14 AM MDT | Red Flag Warning | CYS | 15 hr |
| Mar 30, 3:57 AM MDT | Winter Weather Advisory | CYS | 31 hr |
| Mar 31, 2:15 PM MDT | Winter Weather Advisory | CYS | 25 hr |
| Apr 4, 2:31 PM MDT | Winter Storm Watch | CYS | 36 hr |
| Apr 5, 3:07 PM MDT | Winter Storm Warning | CYS | 63 hr |
| Apr 13, 2:52 AM MDT | Red Flag Warning | CYS | 16 hr |
| Apr 14, 2:56 AM MDT | High Wind Watch | CYS | 35 hr |
| Apr 15, 3:31 AM MDT | High Wind Warning | CYS | 38 hr |
| Apr 25, 11:56 AM MDT | Special Weather Statement | CYS | 34 min |
| Apr 25, 12:24 PM MDT | Special Weather Statement | CYS | 36 min |
| Apr 25, 12:35 PM MDT | Severe Thunderstorm Warning | CYS | 26 min |
| May 5, 2:51 AM MDT | High Wind Watch | CYS | 24 hr |
| May 5, 2:06 PM MDT | High Wind Warning | CYS | 55 hr |
| May 5, 2:17 PM MDT | Winter Weather Advisory | CYS | 31 hr |
| May 8, 2:35 AM MDT | Winter Weather Advisory | CYS | 33 hr |
| May 22, 1:41 AM MDT | High Wind Watch | CYS | 24 hr |
| May 23, 1:29 AM MDT | High Wind Warning | CYS | 17 hr |
| May 29, 12:25 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 11:46 AM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 10, 12:43 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 7:34 PM MDT | Special Weather Statement | CYS | 26 min |
| Jun 17, 2:45 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 17, 4:32 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 20, 1:23 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 12:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 1:16 PM MDT | Special Weather Statement | CYS | 44 min |
| Jun 21, 1:27 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 21, 1:35 PM MDT | Severe Thunderstorm Warning | CYS | 40 min |
| Jul 1, 5:59 PM MDT | Special Weather Statement | CYS | 46 min |
| Jul 1, 6:21 PM MDT | Severe Thunderstorm Warning | CYS | 39 min |
| Jul 1, 6:56 PM MDT | Severe Thunderstorm Warning | CYS | 64 min |
| Jul 12, 2:39 AM MDT | Heat Advisory | CYS | 71 hr |
| Jul 13, 3:00 AM MDT | Red Flag Warning | CYS | 17 hr |
| Jul 13, 6:28 PM MDT | Special Weather Statement | CYS | 92 min |
| Jul 14, 2:06 AM MDT | Red Flag Warning | CYS | 20 hr |
| Jul 15, 5:02 PM MDT | Special Weather Statement | CYS | 43 min |
| Jul 15, 5:04 PM MDT | Severe Thunderstorm Warning | CYS | 22 min |
| Jul 17, 12:20 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 24, 1:40 AM MDT | Fire Weather Watch | CYS | 25 hr |
| Jul 24, 6:06 PM MDT | Red Flag Warning | CYS | 27 hr |
| Jul 25, 2:36 AM MDT | Heat Advisory | CYS | 31 hr |
| Jul 27, 2:16 PM MDT | Fire Weather Watch | CYS | 13 hr |
| Jul 27, 5:23 PM MDT | Severe Thunderstorm Warning | CYS | 52 min |
| Jul 27, 5:47 PM MDT | Severe Thunderstorm Warning | CYS | 43 min |
| Jul 27, 5:58 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jul 28, 12:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 2:46 PM MDT | Fire Weather Watch | CYS | 14 hr |
| Jul 29, 4:40 AM MDT | Fire Weather Watch | CYS | 15 hr |
| Jul 29, 4:40 AM MDT | Red Flag Warning | CYS | 15 hr |
| Jul 29, 7:50 PM MDT | Red Flag Warning | CYS | 25 hr |
| Aug 3, 1:10 PM MDT | Fire Weather Watch | CYS | 13 hr |
| Aug 4, 1:55 AM MDT | Red Flag Warning | CYS | 18 hr |
| Aug 14, 12:12 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 19, 8:19 PM MDT | Special Weather Statement | CYS | 41 min |
| Aug 19, 9:11 PM MDT | Special Weather Statement | CYS | 34 min |
| Aug 23, 2:57 PM MDT | Fire Weather Watch | CYS | 5 hr |
| Aug 23, 7:44 PM MDT | Red Flag Warning | CYS | 25 hr |
| Aug 26, 11:15 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 12:31 PM MDT | Special Weather Statement | CYS | 29 min |
| Aug 27, 2:38 AM MDT | Fire Weather Watch | CYS | 10 hr |
| Aug 27, 12:46 PM MDT | Red Flag Warning | CYS | 31 hr |
| Aug 31, 1:20 PM MDT | Fire Weather Watch | CYS | 24 hr |
| Sep 1, 1:49 PM MDT | Fire Weather Watch | CYS | 13 hr |
| Sep 1, 1:49 PM MDT | Red Flag Warning | CYS | 30 hr |
| Sep 2, 2:29 AM MDT | Red Flag Warning | CYS | 42 hr |
| Sep 4, 12:06 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Sep 8, 1:23 AM MDT | Fire Weather Watch | CYS | 24 hr |
| Sep 8, 2:39 PM MDT | Red Flag Warning | CYS | 29 hr |
| Sep 11, 3:03 AM MDT | Fire Weather Watch | CYS | 10 hr |
| Sep 11, 1:14 PM MDT | Red Flag Warning | CYS | 31 hr |
| Sep 13, 2:36 AM MDT | Fire Weather Watch | CYS | 12 hr |
| Sep 13, 2:29 PM MDT | Red Flag Warning | CYS | 30 hr |
| Sep 16, 3:02 AM MDT | High Wind Watch | CYS | 50 hr |
| Sep 16, 5:46 PM MDT | Special Weather Statement | CYS | 44 min |
| Sep 17, 2:16 AM MDT | High Wind Warning | CYS | 37 hr |
| Sep 17, 10:33 AM MDT | Mesoscale Discussion | SPC | 117 min |
| Sep 17, 2:54 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 17, 3:07 PM MDT | Special Weather Statement | CYS | 53 min |
| Sep 19, 12:37 PM MDT | Red Flag Warning | CYS | 31 hr |
| Sep 21, 1:26 PM MDT | Frost Advisory | CYS | 19 hr |
| Sep 25, 1:46 PM MDT | Red Flag Warning | CYS | 29 hr |
| Sep 27, 1:10 PM MDT | Fire Weather Watch | CYS | 12 hr |
| Sep 28, 1:34 AM MDT | Fire Weather Watch | CYS | 42 hr |
| Sep 28, 1:34 AM MDT | Red Flag Warning | CYS | 65 hr |
| Sep 29, 7:33 PM MDT | Red Flag Warning | CYS | 23 hr |
| Sep 30, 1:11 AM MDT | Fire Weather Watch | CYS | 25 hr |
| Oct 1, 1:49 AM MDT | Red Flag Warning | CYS | 42 hr |
| Oct 3, 1:22 AM MDT | Fire Weather Watch | CYS | 24 hr |
| Oct 3, 1:35 PM MDT | Red Flag Warning | CYS | 53 hr |
| Oct 15, 1:54 AM MDT | Fire Weather Watch | CYS | 12 hr |
| Oct 15, 1:31 PM MDT | Red Flag Warning | CYS | 29 hr |
| Oct 26, 6:30 PM MDT | Red Flag Warning | CYS | 24 hr |
| Oct 28, 2:09 AM MDT | Winter Weather Advisory | CYS | 64 hr |
| Oct 29, 1:21 AM MDT | Winter Storm Warning | CYS | 35 hr |
| Nov 22, 12:58 PM MST | Fire Weather Watch | CYS | 13 hr |
| Nov 23, 1:34 AM MST | Red Flag Warning | CYS | 22 hr |
| Dec 6, 1:42 AM MST | High Wind Watch | CYS | 35 hr |
| Dec 7, 1:54 AM MST | High Wind Warning | CYS | 48 hr |
| Dec 13, 12:28 PM MST | High Wind Watch | CYS | 49 hr |
| Dec 14, 6:00 AM MST | High Wind Warning | CYS | 59 hr |
| Dec 17, 1:18 PM MST | High Wind Warning | CYS | 39 hr |
| Dec 25, 1:01 AM MST | High Wind Watch | CYS | 24 hr |
| Dec 25, 1:45 PM MST | High Wind Warning | CYS | 33 hr |
| Dec 29, 12:59 PM MST | Winter Weather Advisory | CYS | 40 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 | 8 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 12 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 13 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 12 |
| High Wind Watch | 10 |
| Fire | |
| Red Flag Warning | 27 |
| Fire Weather Watch | 20 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.