Alert archive / Wyoming / Johnson County
Weather alerts in Johnson County, Wyoming, 2020
168 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Johnson County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 168
- Warnings
- 52
- Watches
- 29
- Advisories
- 12
- Busiest month
- July35 alerts
- Busiest day
- July 5, 202010 alerts
Over time
By month
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 31, 1:12 PM MST | Winter Storm Watch | RIW | 40 hr |
| Feb 1, 1:50 PM MST | Winter Storm Warning | RIW | 63 hr |
| Feb 4, 6:26 AM MST | Winter Storm Watch | RIW | 33 hr |
| Feb 5, 3:41 AM MST | Winter Storm Warning | RIW | 55 hr |
| Feb 5, 5:09 AM MST | Winter Weather Advisory | RIW | 54 hr |
| Feb 9, 1:04 AM MST | Winter Weather Advisory | RIW | 7 hr |
| Feb 11, 11:41 AM MST | Winter Weather Advisory | RIW | 24 hr |
| Feb 24, 1:39 AM MST | High Wind Warning | RIW | 29 hr |
| Mar 10, 3:43 AM MDT | Dense Fog Advisory | RIW | 6 hr |
| Mar 11, 11:04 AM MDT | Winter Weather Advisory | RIW | 23 hr |
| Apr 1, 2:29 AM MDT | Winter Weather Advisory | RIW | 34 hr |
| Apr 10, 2:39 AM MDT | Winter Storm Watch | RIW | 24 hr |
| Apr 11, 2:31 AM MDT | Winter Storm Warning | RIW | 35 hr |
| Apr 14, 12:47 PM MDT | Winter Weather Advisory | RIW | 47 hr |
| Apr 23, 2:38 PM MDT | Special Weather Statement | RIW | 67 min |
| Apr 23, 3:33 PM MDT | Special Weather Statement | RIW | 27 min |
| Apr 27, 2:16 AM MDT | High Wind Watch | RIW | 23 hr |
| Apr 28, 1:42 AM MDT | High Wind Warning | RIW | 16 hr |
| Apr 30, 3:37 PM MDT | Special Weather Statement | RIW | 53 min |
| Apr 30, 4:22 PM MDT | Special Weather Statement | RIW | 53 min |
| May 5, 2:35 PM MDT | High Wind Watch | RIW | 20 hr |
| May 6, 10:13 AM MDT | High Wind Warning | RIW | 35 hr |
| May 12, 4:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| May 12, 5:33 PM MDT | Special Weather Statement | RIW | 27 min |
| May 12, 5:55 PM MDT | Special Weather Statement | RIW | 35 min |
| May 23, 1:22 PM MDT | Special Weather Statement | RIW | 38 min |
| May 23, 1:40 PM MDT | Special Weather Statement | RIW | 65 min |
| May 30, 1:45 PM MDT | Mesoscale Discussion | SPC | 90 min |
| May 30, 6:02 PM MDT | Special Weather Statement | RIW | 58 min |
| May 30, 6:15 PM MDT | Severe Thunderstorm Warning | RIW | 30 min |
| May 30, 6:38 PM MDT | Severe Thunderstorm Warning | RIW | 47 min |
| May 30, 7:10 PM MDT | Flash Flood Warning | RIW | 6 hr |
| May 30, 7:19 PM MDT | Severe Thunderstorm Warning | RIW | 26 min |
| May 30, 7:45 PM MDT | Special Weather Statement | RIW | 30 min |
| Jun 2, 2:23 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 4:08 PM MDT | Special Weather Statement | RIW | 37 min |
| Jun 4, 5:56 PM MDT | Special Weather Statement | RIW | 34 min |
| Jun 6, 1:46 AM MDT | Severe Thunderstorm Warning | RIW | 74 min |
| Jun 6, 12:27 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Jun 6, 1:23 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 6, 3:53 PM MDT | Severe Thunderstorm Warning | RIW | 37 min |
| Jun 6, 4:35 PM MDT | Severe Thunderstorm Warning | RIW | 25 min |
| Jun 6, 5:02 PM MDT | Severe Thunderstorm Warning | RIW | 30 min |
| Jun 7, 2:34 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jun 7, 6:33 PM MDT | Special Weather Statement | RIW | 27 min |
| Jun 15, 3:55 PM MDT | Fire Weather Watch | RIW | 12 hr |
| Jun 16, 4:05 AM MDT | Red Flag Warning | RIW | 15 hr |
| Jun 16, 4:41 PM MDT | Special Weather Statement | RIW | 34 min |
| Jun 25, 12:26 PM MDT | Special Weather Statement | RIW | 34 min |
| Jun 25, 1:11 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 1:27 PM MDT | Severe Thunderstorm Warning | RIW | 48 min |
| Jun 25, 1:41 PM MDT | Special Weather Statement | RIW | 34 min |
| Jun 25, 2:17 PM MDT | Special Weather Statement | RIW | 28 min |
| Jun 25, 2:43 PM MDT | Special Weather Statement | RIW | 32 min |
| Jun 28, 12:25 PM MDT | Special Weather Statement | RIW | 35 min |
| Jun 28, 1:00 PM MDT | Special Weather Statement | RIW | 30 min |
| Jun 28, 1:11 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 1:29 PM MDT | Special Weather Statement | RIW | 31 min |
| Jun 28, 1:39 PM MDT | Severe Thunderstorm Warning | RIW | 51 min |
| Jun 28, 4:35 PM MDT | Severe Thunderstorm Warning | RIW | 40 min |
| Jun 28, 5:01 PM MDT | Severe Thunderstorm Warning | RIW | 44 min |
| Jun 28, 5:15 PM MDT | Special Weather Statement | RIW | 30 min |
| Jun 28, 5:43 PM MDT | Special Weather Statement | RIW | 32 min |
| Jun 28, 6:34 PM MDT | Special Weather Statement | RIW | 26 min |
| Jun 30, 5:59 PM MDT | Special Weather Statement | RIW | 31 min |
| Jun 30, 7:17 PM MDT | Special Weather Statement | RIW | 28 min |
| Jul 1, 2:37 AM MDT | Red Flag Warning | RIW | 41 hr |
| Jul 3, 1:53 PM MDT | Special Weather Statement | RIW | 52 min |
| Jul 4, 4:58 PM MDT | Special Weather Statement | RIW | 32 min |
| Jul 4, 5:00 PM MDT | Special Weather Statement | RIW | 45 min |
| Jul 4, 5:07 PM MDT | Severe Thunderstorm Warning | RIW | 38 min |
| Jul 4, 5:38 PM MDT | Special Weather Statement | RIW | 37 min |
| Jul 4, 6:10 PM MDT | Special Weather Statement | RIW | 50 min |
| Jul 5, 8:49 AM MDT | Fire Weather Watch | RIW | 28 hr |
| Jul 5, 1:28 PM MDT | Red Flag Warning | RIW | 3 days |
| Jul 5, 3:45 PM MDT | Severe Thunderstorm Warning | RIW | 45 min |
| Jul 5, 4:13 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 4:24 PM MDT | Special Weather Statement | RIW | 51 min |
| Jul 5, 4:52 PM MDT | Special Weather Statement | RIW | 23 min |
| Jul 5, 4:56 PM MDT | Severe Thunderstorm Warning | RIW | 49 min |
| Jul 5, 5:36 PM MDT | Special Weather Statement | RIW | 24 min |
| Jul 5, 5:39 PM MDT | Severe Thunderstorm Warning | RIW | 51 min |
| Jul 9, 1:14 AM MDT | Fire Weather Watch | RIW | 18 hr |
| Jul 9, 7:10 PM MDT | Special Weather Statement | RIW | 35 min |
| Jul 9, 7:30 PM MDT | Red Flag Warning | RIW | 25 hr |
| Jul 9, 7:37 PM MDT | Special Weather Statement | RIW | 23 min |
| Jul 11, 2:44 AM MDT | Fire Weather Watch | RIW | 12 hr |
| Jul 11, 2:27 PM MDT | Red Flag Warning | RIW | 30 hr |
| Jul 16, 2:32 AM MDT | Fire Weather Watch | RIW | 16 hr |
| Jul 16, 2:42 PM MDT | Red Flag Warning | RIW | 53 hr |
| Jul 19, 2:53 PM MDT | Special Weather Statement | RIW | 37 min |
| Jul 19, 3:28 PM MDT | Special Weather Statement | RIW | 32 min |
| Jul 19, 3:38 PM MDT | Special Weather Statement | RIW | 37 min |
| Jul 21, 2:20 PM MDT | Special Weather Statement | RIW | 55 min |
| Jul 22, 4:06 PM MDT | Special Weather Statement | RIW | 54 min |
| Jul 22, 4:21 PM MDT | Areal Flood Advisory | RIW | 54 min |
| Jul 22, 4:28 PM MDT | Special Weather Statement | RIW | 62 min |
| Jul 26, 2:01 PM MDT | Special Weather Statement | RIW | 29 min |
| Jul 26, 3:18 PM MDT | Special Weather Statement | RIW | 27 min |
| Jul 28, 1:13 PM MDT | Special Weather Statement | RIW | 62 min |
| Aug 1, 1:20 PM MDT | Special Weather Statement | RIW | 25 min |
| Aug 1, 1:50 PM MDT | Special Weather Statement | RIW | 40 min |
| Aug 1, 2:28 PM MDT | Severe Thunderstorm Warning | RIW | 32 min |
| Aug 1, 3:07 PM MDT | Special Weather Statement | RIW | 38 min |
| Aug 2, 1:51 PM MDT | Special Weather Statement | RIW | 39 min |
| Aug 2, 2:27 PM MDT | Special Weather Statement | RIW | 48 min |
| Aug 2, 3:10 PM MDT | Special Weather Statement | RIW | 35 min |
| Aug 2, 3:18 PM MDT | Special Weather Statement | RIW | 27 min |
| Aug 3, 12:20 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Aug 3, 3:20 PM MDT | Special Weather Statement | RIW | 25 min |
| Aug 3, 3:22 PM MDT | Special Weather Statement | RIW | 23 min |
| Aug 3, 3:44 PM MDT | Special Weather Statement | RIW | 31 min |
| Aug 3, 3:46 PM MDT | Special Weather Statement | RIW | 29 min |
| Aug 3, 3:51 PM MDT | Severe Thunderstorm Warning | RIW | 39 min |
| Aug 3, 4:27 PM MDT | Special Weather Statement | RIW | 33 min |
| Aug 7, 9:37 PM MDT | Special Weather Statement | RIW | 23 min |
| Aug 7, 9:57 PM MDT | Special Weather Statement | RIW | 48 min |
| Aug 10, 12:12 PM MDT | Red Flag Warning | RIW | 32 hr |
| Aug 11, 12:12 PM MDT | Red Flag Warning | RIW | 3 days |
| Aug 11, 1:49 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Aug 12, 5:12 PM MDT | Special Weather Statement | RIW | 33 min |
| Aug 12, 5:49 PM MDT | Special Weather Statement | RIW | 26 min |
| Aug 12, 6:14 PM MDT | Special Weather Statement | RIW | 31 min |
| Aug 12, 7:01 PM MDT | Special Weather Statement | RIW | 29 min |
| Aug 17, 2:11 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Aug 18, 3:43 AM MDT | Red Flag Warning | RIW | 17 hr |
| Aug 25, 10:13 PM MDT | Special Weather Statement | RIW | 47 min |
| Aug 27, 1:27 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 27, 5:46 PM MDT | Special Weather Statement | RIW | 29 min |
| Aug 27, 6:13 PM MDT | Special Weather Statement | RIW | 47 min |
| Aug 30, 2:17 PM MDT | Fire Weather Watch | BYZ | 13 hr |
| Aug 31, 3:27 AM MDT | Red Flag Warning | BYZ | 69 hr |
| Aug 31, 2:47 PM MDT | Fire Weather Watch | RIW | 13 hr |
| Sep 1, 3:36 AM MDT | Red Flag Warning | RIW | 40 hr |
| Sep 3, 3:14 AM MDT | Fire Weather Watch | BYZ | 32 hr |
| Sep 3, 2:37 PM MDT | Fire Weather Watch | RIW | 44 hr |
| Sep 4, 11:14 AM MDT | Red Flag Warning | BYZ | 57 hr |
| Sep 4, 12:31 PM MDT | Red Flag Warning | RIW | 3 days |
| Sep 6, 12:33 PM MDT | Winter Storm Watch | RIW | 16 hr |
| Sep 7, 4:34 AM MDT | Winter Storm Warning | RIW | 37 hr |
| Sep 7, 4:34 AM MDT | Winter Weather Advisory | RIW | 37 hr |
| Sep 12, 2:46 AM MDT | Fire Weather Watch | BYZ | 24 hr |
| Sep 12, 1:44 PM MDT | Fire Weather Watch | RIW | 24 hr |
| Sep 13, 3:11 AM MDT | Red Flag Warning | BYZ | 42 hr |
| Sep 13, 1:18 PM MDT | Red Flag Warning | RIW | 32 hr |
| Sep 17, 2:15 PM MDT | Fire Weather Watch | RIW | 21 hr |
| Sep 17, 2:38 PM MDT | Fire Weather Watch | BYZ | 23 hr |
| Sep 18, 10:48 AM MDT | Red Flag Warning | RIW | 32 hr |
| Sep 18, 1:53 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Sep 22, 1:46 PM MDT | Fire Weather Watch | BYZ | 24 hr |
| Sep 23, 2:43 AM MDT | Fire Weather Watch | RIW | 12 hr |
| Sep 23, 1:22 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Sep 23, 2:21 PM MDT | Red Flag Warning | RIW | 53 hr |
| Oct 7, 2:05 PM MDT | Red Flag Warning | RIW | 30 hr |
| Oct 9, 3:12 AM MDT | Fire Weather Watch | RIW | 10 hr |
| Oct 9, 1:40 PM MDT | Red Flag Warning | RIW | 30 hr |
| Oct 13, 3:54 AM MDT | High Wind Watch | RIW | 9 hr |
| Oct 13, 1:20 PM MDT | High Wind Warning | RIW | 30 hr |
| Oct 16, 2:02 PM MDT | Winter Weather Advisory | RIW | 64 hr |
| Oct 20, 3:23 PM MDT | Winter Storm Watch | RIW | 13 hr |
| Oct 21, 4:22 AM MDT | Winter Weather Advisory | RIW | 38 hr |
| Oct 23, 4:23 AM MDT | Winter Weather Advisory | RIW | 58 hr |
| Nov 12, 2:39 AM MST | High Wind Watch | RIW | 34 hr |
| Nov 12, 1:22 PM MST | High Wind Warning | RIW | 53 hr |
| Dec 18, 1:30 PM MST | High Wind Watch | RIW | 36 hr |
| Dec 19, 4:58 AM MST | High Wind Warning | RIW | 44 hr |
| Dec 21, 3:01 AM MST | High Wind Watch | RIW | 23 hr |
| Dec 21, 2:06 PM MST | High Wind Warning | RIW | 39 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 | 17 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 66 |
| Flooding | |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 10 |
| Wind and dust | |
| High Wind Warning | 7 |
| High Wind Watch | 6 |
| Fire | |
| Red Flag Warning | 23 |
| Fire Weather Watch | 16 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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. Rebuilt daily.