Alert archive / Wyoming / Sheridan County
Weather alerts in Sheridan County, Wyoming, 2022
134 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sheridan County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 134
- Warnings
- 27
- Watches
- 15
- Advisories
- 37
- Busiest month
- June27 alerts
- Busiest day
- June 12, 20229 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Sheridan County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 4 | 64% | 13 | 46% | 28 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Billings, MT: tornado warnings | 1 | 0 | 100% | 0 | ||
| NWS Billings, MT: severe thunderstorm warnings | 119 | 52 | 56% | 157 | 65% | 29 min |
| NWS Billings, MT: flash flood warnings | 8 | 3 | 63% | 5 | 100% | 62 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 1, 12:08 AM MST | Special Weather Statement | BYZ | 6 hr |
| Jan 1, 6:13 AM MST | Special Weather Statement | BYZ | 4 hr |
| Jan 3, 11:33 AM MST | Winter Weather Advisory | BYZ | 4 days |
| Jan 4, 8:47 AM MST | Special Weather Statement | BYZ | 88 min |
| Jan 7, 4:30 PM MST | Special Weather Statement | BYZ | 6 hr |
| Jan 7, 9:49 PM MST | Special Weather Statement | BYZ | 6 hr |
| Jan 13, 1:15 AM MST | Winter Weather Advisory | BYZ | 33 hr |
| Jan 17, 2:15 PM MST | Winter Weather Advisory | BYZ | 44 hr |
| Jan 21, 3:51 AM MST | Special Weather Statement | BYZ | 114 min |
| Jan 23, 1:59 PM MST | Winter Weather Advisory | BYZ | 40 hr |
| Jan 26, 7:10 PM MST | Winter Weather Advisory | BYZ | 17 hr |
| Feb 1, 1:46 PM MST | Winter Weather Advisory | BYZ | 43 hr |
| Feb 2, 10:33 AM MST | Wind Chill Advisory | BYZ | 22 hr |
| Feb 5, 10:27 AM MST | Winter Weather Advisory | BYZ | 17 hr |
| Feb 5, 5:28 PM MST | Special Weather Statement | BYZ | 77 min |
| Feb 10, 5:42 AM MST | Winter Weather Advisory | BYZ | 38 hr |
| Feb 14, 2:56 AM MST | Winter Weather Advisory | BYZ | 60 hr |
| Feb 16, 7:31 AM MST | Special Weather Statement | BYZ | 119 min |
| Feb 16, 9:49 AM MST | Special Weather Statement | BYZ | 116 min |
| Feb 18, 2:40 PM MST | Winter Storm Watch | BYZ | 4 days |
| Feb 21, 2:58 PM MST | Wind Chill Advisory | BYZ | 68 hr |
| Mar 3, 3:38 AM MST | Special Weather Statement | BYZ | 3 hr |
| Mar 3, 7:41 AM MST | Special Weather Statement | BYZ | 79 min |
| Mar 3, 2:16 PM MST | Winter Storm Warning | BYZ | 43 hr |
| Mar 3, 2:16 PM MST | Winter Weather Advisory | BYZ | 43 hr |
| Mar 7, 3:10 AM MST | Winter Weather Advisory | BYZ | 54 hr |
| Mar 19, 1:38 AM MDT | Winter Weather Advisory | BYZ | 46 hr |
| Apr 2, 8:14 PM MDT | Special Weather Statement | BYZ | 3 hr |
| Apr 3, 1:21 AM MDT | High Wind Watch | BYZ | 50 hr |
| Apr 4, 3:38 AM MDT | High Wind Watch | BYZ | 23 hr |
| Apr 4, 3:38 AM MDT | High Wind Warning | BYZ | 56 hr |
| Apr 6, 5:06 PM MDT | Special Weather Statement | BYZ | 84 min |
| Apr 9, 3:14 PM MDT | Winter Storm Watch | BYZ | 36 hr |
| Apr 10, 3:12 PM MDT | Winter Storm Warning | BYZ | 59 hr |
| Apr 13, 2:12 AM MDT | Winter Weather Advisory | BYZ | 25 hr |
| Apr 20, 3:28 AM MDT | Winter Storm Watch | BYZ | 35 hr |
| Apr 21, 3:02 AM MDT | Winter Storm Warning | BYZ | 71 hr |
| Apr 21, 2:43 PM MDT | Blizzard Warning | BYZ | 68 hr |
| Apr 21, 2:43 PM MDT | Winter Weather Advisory | BYZ | 59 hr |
| Apr 28, 1:38 PM MDT | Winter Weather Advisory | BYZ | 36 hr |
| May 16, 1:49 PM MDT | Special Weather Statement | BYZ | 41 min |
| May 20, 1:32 AM MDT | Winter Weather Advisory | BYZ | 18 hr |
| May 20, 6:15 AM MDT | Special Weather Statement | BYZ | 2 hr |
| May 28, 1:31 AM MDT | Winter Storm Watch | BYZ | 13 hr |
| May 28, 1:31 AM MDT | Winter Storm Warning | BYZ | 3 days |
| May 30, 8:37 PM MDT | Areal Flood Advisory | BYZ | 21 hr |
| May 30, 10:22 PM MDT | Areal Flood Advisory | BYZ | 19 hr |
| Jun 4, 4:25 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 4, 7:20 PM MDT | Special Weather Statement | BYZ | 25 min |
| Jun 4, 7:44 PM MDT | Severe Thunderstorm Warning | BYZ | 61 min |
| Jun 4, 8:44 PM MDT | Severe Thunderstorm Warning | BYZ | 46 min |
| Jun 5, 7:38 PM MDT | Special Weather Statement | BYZ | 67 min |
| Jun 11, 4:59 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 11, 6:09 PM MDT | Special Weather Statement | BYZ | 51 min |
| Jun 11, 11:39 PM MDT | Flash Flood Watch | BYZ | 17 hr |
| Jun 12, 10:03 AM MDT | Areal Flood Warning | BYZ | 37 hr |
| Jun 12, 12:59 PM MDT | Areal Flood Warning | BYZ | 34 hr |
| Jun 12, 1:44 PM MDT | Special Weather Statement | BYZ | 46 min |
| Jun 12, 2:24 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Jun 12, 2:34 PM MDT | Severe Thunderstorm Warning | BYZ | 41 min |
| Jun 12, 3:06 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 12, 3:15 PM MDT | Severe Thunderstorm Warning | BYZ | 44 min |
| Jun 16, 2:52 AM MDT | Heat Advisory | BYZ | 66 hr |
| Jun 17, 4:38 PM MDT | Severe Thunderstorm Warning | BYZ | 37 min |
| Jun 17, 5:10 PM MDT | Severe Thunderstorm Warning | BYZ | 35 min |
| Jun 19, 12:07 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 1:41 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 19, 4:14 PM MDT | Severe Thunderstorm Warning | BYZ | 41 min |
| Jun 20, 1:36 PM MDT | Areal Flood Advisory | BYZ | 24 hr |
| Jun 20, 2:27 PM MDT | Severe Thunderstorm Warning | BYZ | 49 min |
| Jun 24, 4:37 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 7:32 PM MDT | Special Weather Statement | BYZ | 43 min |
| Jun 24, 8:12 PM MDT | Special Weather Statement | BYZ | 48 min |
| Jun 29, 12:06 AM MDT | Special Weather Statement | BYZ | 39 min |
| Jul 2, 12:21 AM MDT | Special Weather Statement | BYZ | 39 min |
| Jul 2, 6:48 PM MDT | Special Weather Statement | BYZ | 42 min |
| Jul 2, 7:12 PM MDT | Special Weather Statement | BYZ | 33 min |
| Jul 2, 8:03 PM MDT | Special Weather Statement | BYZ | 27 min |
| Jul 3, 6:19 PM MDT | Severe Thunderstorm Warning | BYZ | 56 min |
| Jul 3, 7:20 PM MDT | Special Weather Statement | BYZ | 40 min |
| Jul 4, 5:45 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 11:47 PM MDT | Special Weather Statement | BYZ | 28 min |
| Jul 6, 2:12 AM MDT | Special Weather Statement | BYZ | 33 min |
| Jul 6, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 6:05 PM MDT | Special Weather Statement | BYZ | 25 min |
| Jul 10, 6:12 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 4:55 PM MDT | Severe Thunderstorm Warning | BYZ | 50 min |
| Jul 15, 5:43 PM MDT | Severe Thunderstorm Warning | BYZ | 62 min |
| Jul 16, 11:45 AM MDT | Heat Advisory | BYZ | 58 hr |
| Jul 18, 11:13 AM MDT | High Wind Warning | BYZ | 27 hr |
| Jul 24, 3:48 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 9:29 PM MDT | Special Weather Statement | BYZ | 46 min |
| Jul 24, 10:12 PM MDT | Special Weather Statement | BYZ | 33 min |
| Jul 31, 2:22 AM MDT | Heat Advisory | BYZ | 42 hr |
| Jul 31, 3:02 AM MDT | Fire Weather Watch | BYZ | 11 hr |
| Jul 31, 2:29 PM MDT | Red Flag Warning | BYZ | 55 hr |
| Aug 9, 1:49 PM MDT | Heat Advisory | BYZ | 31 hr |
| Aug 13, 6:33 PM MDT | Special Weather Statement | BYZ | 57 min |
| Aug 23, 2:42 PM MDT | Special Weather Statement | BYZ | 48 min |
| Aug 26, 2:55 PM MDT | Special Weather Statement | BYZ | 50 min |
| Aug 26, 3:17 PM MDT | Special Weather Statement | BYZ | 43 min |
| Aug 26, 3:36 PM MDT | Special Weather Statement | BYZ | 39 min |
| Aug 27, 6:54 PM MDT | Special Weather Statement | BYZ | 51 min |
| Sep 2, 12:42 PM MDT | Red Flag Warning | BYZ | 56 hr |
| Sep 3, 2:27 AM MDT | Heat Advisory | BYZ | 18 hr |
| Sep 5, 2:02 PM MDT | Heat Advisory | BYZ | 53 hr |
| Sep 5, 2:46 PM MDT | Fire Weather Watch | BYZ | 11 hr |
| Sep 6, 2:05 AM MDT | Red Flag Warning | BYZ | 46 hr |
| Sep 7, 5:58 PM MDT | Special Weather Statement | BYZ | 62 min |
| Sep 22, 1:37 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Oct 21, 2:42 AM MDT | Winter Storm Watch | BYZ | 24 hr |
| Oct 21, 2:42 AM MDT | Winter Storm Warning | BYZ | 3 days |
| Oct 22, 2:39 AM MDT | Winter Weather Advisory | BYZ | 56 hr |
| Nov 1, 11:46 PM MDT | Special Weather Statement | BYZ | 6 hr |
| Nov 2, 1:58 AM MDT | Winter Weather Advisory | BYZ | 34 hr |
| Nov 7, 12:53 AM MST | Winter Weather Advisory | BYZ | 4 days |
| Nov 13, 12:36 PM MST | Winter Weather Advisory | BYZ | 40 hr |
| Nov 15, 1:20 PM MST | Winter Weather Advisory | BYZ | 52 hr |
| Nov 15, 11:31 PM MST | Special Weather Statement | BYZ | 3 hr |
| Nov 23, 12:52 AM MST | Winter Weather Advisory | BYZ | 22 hr |
| Nov 30, 1:46 PM MST | Winter Weather Advisory | BYZ | 45 hr |
| Dec 6, 11:32 PM MST | Special Weather Statement | BYZ | 3 hr |
| Dec 7, 3:57 AM MST | Special Weather Statement | BYZ | 4 hr |
| Dec 9, 1:30 PM MST | Winter Storm Watch | BYZ | 62 hr |
| Dec 11, 2:40 PM MST | Winter Storm Warning | BYZ | 4 days |
| Dec 12, 3:23 AM MST | Blizzard Warning | BYZ | 55 hr |
| Dec 14, 2:32 AM MST | Winter Weather Advisory | BYZ | 54 hr |
| Dec 14, 5:58 PM MST | Special Weather Statement | BYZ | 62 min |
| Dec 18, 1:07 AM MST | Wind Chill Advisory | BYZ | 61 hr |
| Dec 20, 1:06 AM MST | Winter Weather Advisory | BYZ | 64 hr |
| Dec 20, 2:22 PM MST | Wind Chill Warning | BYZ | 70 hr |
| Dec 21, 9:04 AM MST | Mesoscale Discussion | SPC | 116 min |
| Dec 25, 12:03 PM MST | Special Weather Statement | BYZ | 87 min |
| Dec 31, 7:50 AM MST | Special Weather Statement | BYZ | 115 min |
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 archive20212023
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.