Alert archive / Wyoming / Washakie County
Weather alerts in Washakie County, Wyoming, 2021
74 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Washakie County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 74
- Warnings
- 31
- Watches
- 22
- Advisories
- 10
- Busiest month
- September16 alerts
- Busiest day
- May 26, 20215 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Washakie County in 2021 had a tornado report inside them.
Washakie County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 1 | 0 | 100% | 2 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Riverton, WY: tornado warnings | 1 | 0 | 100% | 0 | ||
| NWS Riverton, WY: severe thunderstorm warnings | 21 | 2 | 90% | 19 | 16% | 22 min |
| NWS Riverton, WY: flash flood warnings | 6 | 2 | 67% | 5 | 80% | 54 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 |
|---|---|---|---|
| Feb 4, 2:10 AM MST | Winter Weather Advisory | RIW | 45 hr |
| Feb 6, 2:29 AM MST | Winter Weather Advisory | RIW | 39 hr |
| Mar 8, 3:50 AM MST | Winter Storm Watch | RIW | 23 hr |
| Mar 9, 3:09 AM MST | Winter Weather Advisory | RIW | 38 hr |
| Mar 12, 1:39 PM MST | Winter Storm Warning | RIW | 54 hr |
| Mar 12, 1:39 PM MST | Winter Weather Advisory | RIW | 22 hr |
| Mar 13, 11:23 AM MST | Winter Weather Advisory | RIW | 33 hr |
| Apr 5, 2:51 AM MDT | Winter Weather Advisory | RIW | 36 hr |
| Apr 13, 3:37 PM MDT | Winter Storm Watch | RIW | 13 hr |
| Apr 13, 3:37 PM MDT | Winter Weather Advisory | RIW | 68 hr |
| Apr 17, 2:30 AM MDT | Winter Storm Watch | RIW | 25 hr |
| Apr 18, 3:15 AM MDT | Winter Storm Warning | RIW | 42 hr |
| Apr 18, 3:15 AM MDT | Winter Weather Advisory | RIW | 42 hr |
| Apr 25, 3:04 AM MDT | Winter Weather Advisory | RIW | 57 hr |
| May 20, 2:46 PM MDT | Special Weather Statement | RIW | 29 min |
| May 26, 2:41 PM MDT | Special Weather Statement | RIW | 34 min |
| May 26, 2:48 PM MDT | Special Weather Statement | RIW | 27 min |
| May 26, 2:54 PM MDT | Tornado Warning | RIW | 23 min |
| May 26, 3:18 PM MDT | Special Weather Statement | RIW | 27 min |
| May 26, 3:47 PM MDT | Special Weather Statement | RIW | 28 min |
| Jun 4, 8:24 AM MDT | Flood Watch | RIW | 3 days |
| Jun 6, 7:08 AM MDT | Areal Flood Advisory | RIW | 45 hr |
| Jun 15, 3:13 AM MDT | Red Flag Warning | RIW | 17 hr |
| Jul 7, 1:32 PM MDT | Red Flag Warning | RIW | 55 hr |
| Jul 7, 3:23 PM MDT | Special Weather Statement | RIW | 37 min |
| Jul 7, 3:57 PM MDT | Special Weather Statement | RIW | 33 min |
| Jul 11, 8:59 PM MDT | Special Weather Statement | RIW | 31 min |
| Jul 13, 2:21 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jul 15, 3:33 PM MDT | Red Flag Warning | RIW | 29 hr |
| Jul 16, 3:06 PM MDT | Special Weather Statement | RIW | 24 min |
| Jul 19, 1:28 PM MDT | Red Flag Warning | RIW | 32 hr |
| Aug 6, 1:43 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 7, 3:06 AM MDT | Fire Weather Watch | BYZ | 11 hr |
| Aug 7, 2:26 PM MDT | Red Flag Warning | BYZ | 34 hr |
| Aug 9, 2:58 AM MDT | Fire Weather Watch | BYZ | 10 hr |
| Aug 9, 1:17 PM MDT | Red Flag Warning | RIW | 31 hr |
| Aug 16, 2:24 AM MDT | Fire Weather Watch | RIW | 11 hr |
| Aug 16, 1:24 PM MDT | Red Flag Warning | BYZ | 35 hr |
| Aug 16, 1:50 PM MDT | Red Flag Warning | RIW | 31 hr |
| Aug 21, 10:59 PM MDT | Special Weather Statement | RIW | 31 min |
| Aug 22, 12:38 PM MDT | Red Flag Warning | RIW | 31 hr |
| Aug 24, 2:53 AM MDT | Fire Weather Watch | RIW | 10 hr |
| Aug 24, 12:56 PM MDT | Red Flag Warning | RIW | 31 hr |
| Aug 26, 3:14 AM MDT | Fire Weather Watch | RIW | 23 hr |
| Aug 26, 3:14 AM MDT | Red Flag Warning | RIW | 65 hr |
| Sep 4, 2:20 PM MDT | Fire Weather Watch | BYZ | 24 hr |
| Sep 5, 2:13 AM MDT | Fire Weather Watch | RIW | 24 hr |
| Sep 5, 1:49 PM MDT | Red Flag Warning | RIW | 30 hr |
| Sep 5, 2:29 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Sep 9, 2:52 AM MDT | Fire Weather Watch | RIW | 23 hr |
| Sep 10, 1:51 AM MDT | Red Flag Warning | RIW | 18 hr |
| Sep 10, 6:01 PM MDT | Severe Thunderstorm Warning | RIW | 44 min |
| Sep 14, 1:36 AM MDT | Fire Weather Watch | RIW | 12 hr |
| Sep 14, 1:04 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Sep 14, 1:14 PM MDT | Red Flag Warning | RIW | 55 hr |
| Sep 16, 1:53 PM MDT | Red Flag Warning | BYZ | 55 hr |
| Sep 16, 1:59 PM MDT | Red Flag Warning | RIW | 54 hr |
| Sep 27, 1:50 AM MDT | Fire Weather Watch | BYZ | 12 hr |
| Sep 27, 2:05 AM MDT | Fire Weather Watch | RIW | 12 hr |
| Sep 27, 1:37 PM MDT | Red Flag Warning | RIW | 28 hr |
| Sep 27, 2:06 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Oct 3, 2:17 AM MDT | Fire Weather Watch | RIW | 11 hr |
| Oct 3, 1:23 PM MDT | Red Flag Warning | RIW | 30 hr |
| Oct 9, 3:42 PM MDT | Winter Storm Watch | RIW | 24 hr |
| Oct 10, 4:03 PM MDT | Winter Storm Watch | RIW | 14 hr |
| Oct 10, 4:03 PM MDT | Winter Storm Warning | RIW | 68 hr |
| Oct 17, 2:32 PM MDT | Winter Storm Watch | RIW | 24 hr |
| Oct 18, 3:53 AM MDT | Winter Storm Warning | RIW | 43 hr |
| Nov 15, 3:58 AM MST | High Wind Warning | RIW | 40 hr |
| Nov 23, 3:00 AM MST | Red Flag Warning | RIW | 13 hr |
| Dec 3, 9:11 AM MST | High Wind Warning | RIW | 54 hr |
| Dec 3, 10:26 AM MST | High Wind Watch | RIW | 22 hr |
| Dec 12, 7:13 PM MST | High Wind Watch | RIW | 25 hr |
| Dec 13, 2:28 AM MST | High Wind Warning | RIW | 42 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 | 1 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 10 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 9 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 2 |
| Fire | |
| Red Flag Warning | 22 |
| Fire Weather Watch | 12 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.