Alert archive / Wyoming / 2017
Weather alerts in Wyoming, September 2017
62 weather alerts in September 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in September 2017. Tap one for its archive.
- Alerts
- 62
- Warnings
- 16
- Watches
- 11
- Advisories
- 17
- Busiest day
- September 22, 201710 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 2:29 AM MDT | Red Flag Warning | BYZ | Sheridan | 18 hr |
| Sep 1, 4:50 AM MDT | Red Flag Warning | UNR | 15 hr | |
| Sep 1, 1:44 PM MDT | Fire Weather Watch | UNR | 24 hr | |
| Sep 1, 2:29 PM MDT | Fire Weather Watch | BYZ | Big Horn, Johnson, Sheridan, Washakie | 24 hr |
| Sep 2, 2:04 PM MDT | Red Flag Warning | UNR | 30 hr | |
| Sep 2, 2:50 PM MDT | Red Flag Warning | BYZ | Big Horn, Johnson, Sheridan, Washakie | 54 hr |
| Sep 2, 8:20 PM MDT | Red Flag Warning | RIW | Fremont, Johnson, Lincoln, Natrona, Sublette, Sweetwater and 1 more | 25 hr |
| Sep 3, 2:03 AM MDT | Red Flag Warning | CYS | 17 hr | |
| Sep 5, 2:17 PM MDT | Frost Advisory | CYS | Albany, Carbon | 17 hr |
| Sep 13, 3:21 PM MDT | Winter Storm Watch | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 4 more | 24 hr |
| Sep 13, 3:25 PM MDT | Winter Storm Watch | BYZ | 13 hr | |
| Sep 13, 4:47 PM MDT | Special Weather Statement | CYS | Carbon | 43 min |
| Sep 13, 7:09 PM MDT | Special Weather Statement | RIW | Big Horn | 36 min |
| Sep 14, 4:04 AM MDT | Winter Storm Warning | BYZ | 58 hr | |
| Sep 14, 3:35 PM MDT | Winter Storm Warning | RIW | Big Horn, Fremont, Hot Springs, Johnson, Natrona, Park and 2 more | 43 hr |
| Sep 14, 3:35 PM MDT | Winter Weather Advisory | RIW | Fremont, Lincoln, Park, Sublette, Teton | 43 hr |
| Sep 15, 10:34 PM MDT | Freeze Watch | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 5 more | 16 hr |
| Sep 16, 1:36 PM MDT | Frost Advisory | UNR | Campbell, Crook, Weston | 15 hr |
| Sep 16, 2:08 PM MDT | Frost Advisory | CYS | Albany, Carbon, Converse, Niobrara | 18 hr |
| Sep 16, 2:33 PM MDT | Freeze Warning | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 5 more | 18 hr |
| Sep 17, 4:44 PM MDT | Special Weather Statement | CYS | Laramie | 46 min |
| Sep 18, 1:00 PM MDT | Fire Weather Watch | CYS | 14 hr | |
| Sep 18, 1:20 PM MDT | Red Flag Warning | CYS | 5 hr | |
| Sep 18, 2:12 PM MDT | Winter Weather Advisory | RIW | Fremont, Hot Springs, Lincoln, Park, Sublette, Teton | 31 hr |
| Sep 19, 2:45 AM MDT | Red Flag Warning | CYS | 14 hr | |
| Sep 19, 3:07 AM MDT | Fire Weather Watch | UNR | 24 hr | |
| Sep 19, 2:34 PM MDT | Winter Storm Watch | RIW | Fremont, Sublette | 10 hr |
| Sep 19, 3:21 PM MDT | Special Weather Statement | RIW | Washakie | 24 min |
| Sep 19, 3:45 PM MDT | Special Weather Statement | CYS | Carbon | 90 min |
| Sep 19, 5:15 PM MDT | Special Weather Statement | CYS | Albany, Carbon | 30 min |
| Sep 19, 7:26 PM MDT | High Wind Warning | CYS | Albany, Laramie, Platte | 5 hr |
| Sep 20, 12:52 AM MDT | Winter Storm Warning | RIW | Fremont, Lincoln, Sublette, Teton | 20 hr |
| Sep 20, 12:52 AM MDT | Winter Weather Advisory | RIW | Fremont, Hot Springs, Lincoln, Park, Sublette, Teton | 20 hr |
| Sep 20, 3:04 AM MDT | Red Flag Warning | UNR | 16 hr | |
| Sep 20, 10:26 AM MDT | Red Flag Warning | CYS | 9 hr | |
| Sep 20, 2:28 PM MDT | Fire Weather Watch | CYS | 16 hr | |
| Sep 21, 5:12 AM MDT | Winter Weather Advisory | RIW | Fremont, Hot Springs, Lincoln, Park, Sublette, Teton | 43 hr |
| Sep 21, 6:40 AM MDT | Red Flag Warning | CYS | 12 hr | |
| Sep 22, 1:48 PM MDT | Winter Storm Watch | RIW | Fremont, Sublette | 24 hr |
| Sep 22, 2:57 PM MDT | Special Weather Statement | RIW | Sweetwater | 33 min |
| Sep 22, 3:09 PM MDT | Special Weather Statement | RIW | Fremont | 21 min |
| Sep 22, 3:21 PM MDT | Special Weather Statement | RIW | 24 min | |
| Sep 22, 3:52 PM MDT | Special Weather Statement | RIW | Sweetwater | 23 min |
| Sep 22, 4:05 PM MDT | Special Weather Statement | RIW | Fremont | 25 min |
| Sep 22, 4:24 PM MDT | Special Weather Statement | RIW | Sweetwater | 21 min |
| Sep 22, 4:44 PM MDT | Special Weather Statement | RIW | 31 min | |
| Sep 22, 4:57 PM MDT | Special Weather Statement | RIW | 33 min | |
| Sep 22, 5:27 PM MDT | Special Weather Statement | RIW | Fremont | 48 min |
| Sep 23, 2:17 PM MDT | Winter Weather Advisory | RIW | Big Horn, Fremont, Johnson, Natrona, Sublette, Washakie | 34 hr |
| Sep 23, 2:30 PM MDT | Winter Weather Advisory | BYZ | 16 hr | |
| Sep 23, 8:58 PM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 17 hr |
| Sep 24, 3:01 AM MDT | Winter Weather Advisory | CYS | Albany, Carbon | 21 hr |
| Sep 25, 1:55 PM MDT | Frost Advisory | CYS | Converse, Goshen, Laramie, Niobrara, Platte | 17 hr |
| Sep 25, 2:22 PM MDT | Frost Advisory | UNR | Campbell, Crook, Weston | 16 hr |
| Sep 26, 12:50 PM MDT | Frost Advisory | CYS | Converse, Niobrara | 18 hr |
| Sep 26, 5:57 PM MDT | Frost Advisory | UNR | Campbell, Weston | 13 hr |
| Sep 28, 11:51 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 22 hr |
| Sep 29, 10:31 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 2 hr |
| Sep 29, 1:20 PM MDT | Special Weather Statement | RIW | Natrona | 25 min |
| Sep 29, 2:09 PM MDT | Special Weather Statement | RIW | Natrona | 51 min |
| Sep 29, 7:57 PM MDT | Special Weather Statement | RIW | Fremont | 33 min |
| Sep 30, 2:26 PM MDT | Winter Storm Watch | CYS | Albany, Carbon, Laramie | 24 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 | |
| Special Weather Statement | 18 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 7 |
| Wind and dust | |
| High Wind Warning | 1 |
| Fire | |
| Red Flag Warning | 11 |
| Fire Weather Watch | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County17
- Sublette County13
- Lincoln County9
- Albany County9
- Big Horn County8
- Johnson County8
- Washakie County8
- Natrona County8
- Park County8
- Teton County8
- Carbon County7
- Hot Springs County7
- Laramie County7
- Sweetwater County6
- Sheridan County3
- Campbell County3
- Weston County3
- Converse County3
- Niobrara County3
- Crook County2
- Platte County2
- Uinta County1
- Goshen County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.