Alert archive / Wyoming / Fremont County
Weather alerts in Fremont County, Wyoming, 2022
162 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Fremont County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 162
- Warnings
- 49
- Watches
- 33
- Advisories
- 36
- Busiest month
- August25 alerts
- Busiest day
- June 12, 20225 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Fremont County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 0 | 100% | 2 | 0% | |
| 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 Riverton, WY: severe thunderstorm warnings | 25 | 4 | 84% | 35 | 20% | 13 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 2, 2:39 PM MST | Winter Weather Advisory | RIW | 44 hr |
| Jan 3, 3:05 AM MST | High Wind Watch | RIW | 35 hr |
| Jan 3, 3:01 PM MST | High Wind Warning | RIW | 23 hr |
| Jan 3, 3:17 PM MST | Winter Storm Watch | RIW | 23 hr |
| Jan 4, 2:33 PM MST | Winter Storm Warning | RIW | 53 hr |
| Jan 4, 2:33 PM MST | Winter Weather Advisory | RIW | 4 days |
| Jan 6, 2:37 PM MST | Winter Weather Advisory | RIW | 38 hr |
| Jan 30, 11:14 AM MST | High Wind Watch | RIW | 10 hr |
| Jan 30, 9:02 PM MST | High Wind Warning | RIW | 20 hr |
| Feb 15, 3:02 AM MST | Winter Weather Advisory | RIW | 44 hr |
| Feb 18, 2:49 PM MST | High Wind Warning | RIW | 38 hr |
| Feb 19, 4:41 PM MST | Winter Weather Advisory | RIW | 60 hr |
| Feb 21, 7:23 PM MST | Wind Chill Advisory | RIW | 16 hr |
| Feb 23, 4:58 AM MST | Wind Chill Advisory | RIW | 29 hr |
| Feb 28, 10:45 PM MST | High Wind Warning | RIW | 9 hr |
| Mar 4, 3:33 AM MST | Winter Weather Advisory | RIW | 62 hr |
| Mar 7, 3:12 AM MST | Winter Storm Watch | RIW | 11 hr |
| Mar 7, 3:12 AM MST | Winter Weather Advisory | RIW | 60 hr |
| Mar 7, 1:47 PM MST | Winter Storm Warning | RIW | 49 hr |
| Mar 14, 2:53 PM MDT | Winter Weather Advisory | RIW | 45 hr |
| Mar 28, 3:05 AM MDT | Winter Weather Advisory | RIW | 40 hr |
| Mar 29, 3:11 AM MDT | High Wind Warning | RIW | 17 hr |
| Apr 3, 3:24 AM MDT | High Wind Watch | RIW | 24 hr |
| Apr 3, 3:26 AM MDT | Winter Storm Watch | RIW | 11 hr |
| Apr 3, 2:23 PM MDT | Winter Weather Advisory | RIW | 52 hr |
| Apr 3, 2:30 PM MDT | High Wind Warning | RIW | 3 days |
| Apr 9, 1:55 AM MDT | Winter Weather Advisory | RIW | 37 hr |
| Apr 10, 2:33 AM MDT | Winter Storm Watch | RIW | 25 hr |
| Apr 11, 3:58 AM MDT | Winter Storm Warning | RIW | 38 hr |
| Apr 11, 3:58 AM MDT | Winter Weather Advisory | RIW | 38 hr |
| Apr 13, 1:10 PM MDT | Winter Weather Advisory | RIW | 41 hr |
| Apr 20, 2:05 PM MDT | Winter Storm Watch | RIW | 37 hr |
| Apr 21, 2:32 PM MDT | Winter Weather Advisory | RIW | 51 hr |
| Apr 22, 2:49 AM MDT | Winter Storm Warning | RIW | 39 hr |
| Apr 28, 12:39 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| May 3, 2:26 PM MDT | Winter Storm Warning | RIW | 22 hr |
| May 11, 2:22 AM MDT | High Wind Watch | RIW | 12 hr |
| May 11, 2:22 PM MDT | High Wind Warning | RIW | 28 hr |
| May 16, 10:10 PM MDT | Special Weather Statement | RIW | 20 min |
| May 17, 1:41 PM MDT | Special Weather Statement | RIW | 34 min |
| May 17, 2:11 PM MDT | Special Weather Statement | RIW | 34 min |
| May 17, 2:30 PM MDT | Special Weather Statement | RIW | 30 min |
| May 18, 3:06 AM MDT | High Wind Watch | RIW | 11 hr |
| May 18, 1:36 PM MDT | High Wind Warning | RIW | 28 hr |
| May 28, 2:37 AM MDT | Winter Storm Watch | RIW | 12 hr |
| May 28, 2:24 PM MDT | Winter Storm Warning | RIW | 70 hr |
| May 28, 2:24 PM MDT | Winter Weather Advisory | RIW | 49 hr |
| Jun 3, 2:51 PM MDT | Special Weather Statement | RIW | 24 min |
| Jun 3, 3:14 PM MDT | Special Weather Statement | RIW | 31 min |
| Jun 3, 10:25 PM MDT | Special Weather Statement | RIW | 35 min |
| Jun 7, 11:36 AM MDT | Severe Thunderstorm Warning | RIW | 24 min |
| Jun 11, 8:37 PM MDT | River Flood Warning | RIW | 4 days |
| Jun 11, 10:22 PM MDT | Areal Flood Advisory | RIW | 47 hr |
| Jun 12, 4:23 PM MDT | River Flood Warning | RIW | 3 days |
| Jun 12, 4:23 PM MDT | River Flood Warning | RIW | 35 hr |
| Jun 12, 4:53 PM MDT | Severe Thunderstorm Warning | RIW | 25 min |
| Jul 1, 1:22 PM MDT | Special Weather Statement | RIW | 38 min |
| Jul 1, 1:58 PM MDT | Special Weather Statement | RIW | 47 min |
| Jul 13, 9:12 PM MDT | Special Weather Statement | RIW | 33 min |
| Jul 16, 1:40 PM MDT | Special Weather Statement | RIW | 50 min |
| Jul 16, 1:46 PM MDT | Special Weather Statement | RIW | 44 min |
| Jul 17, 2:21 AM MDT | Fire Weather Watch | RIW | 12 hr |
| Jul 17, 2:05 PM MDT | Red Flag Warning | RIW | 30 hr |
| Jul 20, 2:28 AM MDT | Fire Weather Watch | RIW | 11 hr |
| Jul 20, 1:13 PM MDT | Fire Weather Watch | RIW | 25 hr |
| Jul 20, 1:13 PM MDT | Red Flag Warning | RIW | 55 hr |
| Jul 23, 1:21 PM MDT | Red Flag Warning | RIW | 31 hr |
| Jul 24, 2:54 PM MDT | Special Weather Statement | RIW | 36 min |
| Jul 26, 1:16 PM MDT | Fire Weather Watch | RIW | 24 hr |
| Jul 27, 1:17 PM MDT | Red Flag Warning | RIW | 32 hr |
| Jul 27, 7:05 PM MDT | Special Weather Statement | RIW | 40 min |
| Jul 27, 7:43 PM MDT | Special Weather Statement | RIW | 32 min |
| Jul 27, 8:16 PM MDT | Special Weather Statement | RIW | 44 min |
| Aug 2, 8:18 PM MDT | Special Weather Statement | RIW | 57 min |
| Aug 5, 4:37 PM MDT | Special Weather Statement | RIW | 23 min |
| Aug 11, 3:32 PM MDT | Flood Watch | RIW | 3 days |
| Aug 11, 4:40 PM MDT | Special Weather Statement | RIW | 35 min |
| Aug 11, 5:19 PM MDT | Special Weather Statement | RIW | 26 min |
| Aug 11, 6:02 PM MDT | Special Weather Statement | RIW | 28 min |
| Aug 11, 7:48 PM MDT | Areal Flood Advisory | RIW | 117 min |
| Aug 11, 8:03 PM MDT | Special Weather Statement | RIW | 27 min |
| Aug 12, 3:02 PM MDT | Areal Flood Advisory | RIW | 2 hr |
| Aug 12, 5:57 PM MDT | Areal Flood Advisory | RIW | 2 hr |
| Aug 13, 5:04 PM MDT | Special Weather Statement | RIW | 26 min |
| Aug 13, 5:33 PM MDT | Special Weather Statement | RIW | 27 min |
| Aug 13, 6:12 PM MDT | Special Weather Statement | RIW | 33 min |
| Aug 19, 4:53 PM MDT | Areal Flood Advisory | RIW | 112 min |
| Aug 23, 1:32 PM MDT | Special Weather Statement | RIW | 28 min |
| Aug 23, 1:58 PM MDT | Special Weather Statement | RIW | 32 min |
| Aug 23, 2:26 PM MDT | Special Weather Statement | RIW | 34 min |
| Aug 24, 3:46 PM MDT | Severe Thunderstorm Warning | RIW | 44 min |
| Aug 24, 5:06 PM MDT | Special Weather Statement | RIW | 39 min |
| Aug 24, 5:45 PM MDT | Special Weather Statement | RIW | 45 min |
| Aug 24, 9:51 PM MDT | Areal Flood Advisory | RIW | 3 hr |
| Aug 26, 4:58 AM MDT | Fire Weather Watch | RIW | 22 hr |
| Aug 26, 3:07 PM MDT | Special Weather Statement | RIW | 23 min |
| Aug 26, 3:28 PM MDT | Special Weather Statement | RIW | 32 min |
| Aug 27, 2:39 AM MDT | Red Flag Warning | RIW | 17 hr |
| Sep 2, 2:44 PM MDT | Fire Weather Watch | RIW | 23 hr |
| Sep 3, 1:14 PM MDT | Red Flag Warning | RIW | 31 hr |
| Sep 5, 2:28 AM MDT | Red Flag Warning | RIW | 18 hr |
| Sep 6, 10:42 AM MDT | Fire Weather Watch | RIW | 28 hr |
| Sep 6, 10:42 AM MDT | Red Flag Warning | RIW | 57 hr |
| Sep 8, 1:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Sep 9, 2:11 AM MDT | Freeze Warning | RIW | 31 hr |
| Sep 12, 1:36 PM MDT | Fire Weather Watch | RIW | 13 hr |
| Sep 13, 2:41 AM MDT | Red Flag Warning | RIW | 17 hr |
| Sep 18, 2:18 AM MDT | Fire Weather Watch | RIW | 11 hr |
| Sep 18, 1:13 PM MDT | Red Flag Warning | RIW | 31 hr |
| Sep 22, 12:44 PM MDT | Special Weather Statement | RIW | 31 min |
| Sep 22, 1:17 PM MDT | Special Weather Statement | RIW | 28 min |
| Sep 22, 1:48 PM MDT | Special Weather Statement | RIW | 27 min |
| Sep 27, 1:13 AM MDT | Fire Weather Watch | RIW | 12 hr |
| Sep 27, 1:42 PM MDT | Red Flag Warning | RIW | 28 hr |
| Sep 29, 3:42 PM MDT | Special Weather Statement | RIW | 33 min |
| Sep 29, 4:36 PM MDT | Special Weather Statement | RIW | 24 min |
| Sep 30, 6:32 PM MDT | Special Weather Statement | RIW | 28 min |
| Sep 30, 6:56 PM MDT | Special Weather Statement | RIW | 34 min |
| Oct 19, 2:33 AM MDT | Fire Weather Watch | RIW | 11 hr |
| Oct 19, 1:45 PM MDT | Red Flag Warning | RIW | 54 hr |
| Oct 21, 2:43 AM MDT | High Wind Watch | RIW | 25 hr |
| Oct 21, 3:12 AM MDT | Winter Storm Warning | RIW | 63 hr |
| Oct 21, 3:12 AM MDT | Winter Weather Advisory | RIW | 3 days |
| Oct 22, 4:05 AM MDT | High Wind Warning | RIW | 16 hr |
| Oct 24, 2:32 PM MDT | Winter Weather Advisory | RIW | 17 hr |
| Nov 2, 1:43 AM MDT | Winter Weather Advisory | RIW | 40 hr |
| Nov 3, 3:54 AM MDT | Winter Storm Watch | RIW | 22 hr |
| Nov 3, 12:32 PM MDT | Winter Storm Warning | RIW | 55 hr |
| Nov 4, 1:53 AM MDT | Winter Weather Advisory | RIW | 42 hr |
| Nov 4, 2:06 AM MDT | High Wind Warning | RIW | 42 hr |
| Nov 6, 12:12 PM MST | Winter Storm Watch | RIW | 23 hr |
| Nov 6, 12:12 PM MST | Winter Storm Warning | RIW | 48 hr |
| Nov 7, 2:58 AM MST | High Wind Warning | RIW | 14 hr |
| Nov 7, 11:10 AM MST | Winter Weather Advisory | RIW | 25 hr |
| Nov 8, 12:32 PM MST | Winter Weather Advisory | RIW | 39 hr |
| Nov 26, 6:16 AM MST | High Wind Watch | RIW | 8 hr |
| Nov 26, 1:52 PM MST | High Wind Warning | RIW | 39 hr |
| Nov 26, 1:56 PM MST | Winter Storm Watch | RIW | 12 hr |
| Nov 27, 1:26 AM MST | Winter Storm Warning | RIW | 40 hr |
| Nov 27, 1:26 AM MST | Winter Weather Advisory | RIW | 55 hr |
| Nov 30, 2:41 AM MST | High Wind Watch | RIW | 14 hr |
| Nov 30, 2:50 AM MST | Winter Storm Watch | RIW | 14 hr |
| Nov 30, 4:49 PM MST | High Wind Warning | RIW | 34 hr |
| Nov 30, 4:52 PM MST | Winter Storm Warning | RIW | 43 hr |
| Dec 3, 1:44 PM MST | Winter Weather Advisory | RIW | 39 hr |
| Dec 10, 2:08 PM MST | Winter Weather Advisory | RIW | 3 days |
| Dec 11, 2:18 PM MST | Winter Storm Warning | RIW | 59 hr |
| Dec 18, 1:18 PM MST | Winter Storm Watch | RIW | 14 hr |
| Dec 19, 3:10 AM MST | Wind Chill Watch | RIW | 34 hr |
| Dec 19, 3:10 AM MST | Winter Storm Warning | RIW | 65 hr |
| Dec 19, 3:10 AM MST | Winter Weather Advisory | RIW | 68 hr |
| Dec 20, 1:07 PM MST | Wind Chill Warning | RIW | 70 hr |
| Dec 20, 1:07 PM MST | Wind Chill Advisory | RIW | 46 hr |
| Dec 21, 9:04 AM MST | Mesoscale Discussion | SPC | 116 min |
| Dec 21, 11:05 AM MST | Mesoscale Discussion | SPC | 3 hr |
| Dec 21, 2:15 PM MST | Mesoscale Discussion | SPC | 3 hr |
| Dec 26, 2:10 AM MST | High Wind Watch | RIW | 12 hr |
| Dec 26, 2:08 PM MST | High Wind Warning | RIW | 32 hr |
| Dec 26, 3:10 PM MST | Winter Storm Warning | RIW | 39 hr |
| Dec 26, 3:10 PM MST | Winter Weather Advisory | RIW | 39 hr |
| Dec 29, 12:59 PM MST | Winter Weather Advisory | RIW | 3 days |
| Dec 30, 12:58 AM MST | Winter Storm Warning | RIW | 4 days |
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 | 3 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 39 |
| Flooding | |
| River Flood Warning | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 15 |
| Winter Storm Watch | 11 |
| Winter Weather Advisory | 27 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 1 |
| Wind Chill Watch | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 14 |
| High Wind Watch | 9 |
| Fire | |
| Red Flag Warning | 12 |
| Fire Weather Watch | 11 |
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.