Alert archive / Wyoming / 2018
Weather alerts in Wyoming, September 2018
106 weather alerts in September 2018, 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 2018. Tap one for its archive.
- Alerts
- 106
- Warnings
- 36
- Watches
- 27
- Advisories
- 10
- Busiest day
- September 8, 201823 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 3, 8:17 PM MDT | Special Weather Statement | UNR | Crook | 43 min |
| Sep 4, 11:46 PM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 9 hr |
| Sep 7, 12:42 PM MDT | Fire Weather Watch | RIW | Lincoln, Uinta | 13 hr |
| Sep 7, 1:30 PM MDT | Special Weather Statement | RIW | Fremont | 30 min |
| Sep 7, 3:54 PM MDT | Special Weather Statement | RIW | Hot Springs | 36 min |
| Sep 8, 1:26 AM MDT | Red Flag Warning | RIW | Lincoln, Uinta | 11 hr |
| Sep 8, 9:34 AM MDT | Special Weather Statement | RIW | Fremont | 26 min |
| Sep 8, 10:05 AM MDT | Special Weather Statement | RIW | Fremont | 25 min |
| Sep 8, 1:53 PM MDT | Special Weather Statement | RIW | Teton | 37 min |
| Sep 8, 2:17 PM MDT | Special Weather Statement | RIW | 28 min | |
| Sep 8, 2:43 PM MDT | Special Weather Statement | CYS | Niobrara | 62 min |
| Sep 8, 3:14 PM MDT | Special Weather Statement | UNR | Crook | 46 min |
| Sep 8, 3:15 PM MDT | Special Weather Statement | UNR | Weston | 45 min |
| Sep 8, 3:43 PM MDT | Special Weather Statement | RIW | Sublette | 32 min |
| Sep 8, 3:49 PM MDT | Special Weather Statement | UNR | Crook | 41 min |
| Sep 8, 3:52 PM MDT | Special Weather Statement | CYS | Niobrara | 53 min |
| Sep 8, 3:52 PM MDT | Special Weather Statement | UNR | Weston | 53 min |
| Sep 8, 3:55 PM MDT | Special Weather Statement | CYS | Platte | 35 min |
| Sep 8, 4:07 PM MDT | Mesoscale Discussion | SPC | Crook, Goshen, Niobrara, Weston | 2 hr |
| Sep 8, 4:30 PM MDT | Special Weather Statement | UNR | Crook | 45 min |
| Sep 8, 4:31 PM MDT | Special Weather Statement | CYS | Goshen | 44 min |
| Sep 8, 4:46 PM MDT | Special Weather Statement | RIW | Fremont | 44 min |
| Sep 8, 4:59 PM MDT | Special Weather Statement | CYS | Goshen | 46 min |
| Sep 8, 5:13 PM MDT | Special Weather Statement | CYS | Goshen | 47 min |
| Sep 8, 5:19 PM MDT | Special Weather Statement | RIW | Fremont | 41 min |
| Sep 8, 5:24 PM MDT | Areal Flood Advisory | CYS | Goshen | 2 hr |
| Sep 8, 5:36 PM MDT | Special Weather Statement | CYS | Goshen | 39 min |
| Sep 8, 5:41 PM MDT | Special Weather Statement | RIW | Fremont | 34 min |
| Sep 8, 6:14 PM MDT | Special Weather Statement | RIW | 61 min | |
| Sep 9, 10:30 AM MDT | Red Flag Warning | CYS | 10 hr | |
| Sep 9, 12:49 PM MDT | Fire Weather Watch | RIW | Lincoln, Uinta | 13 hr |
| Sep 10, 1:39 AM MDT | Red Flag Warning | RIW | Fremont, Lincoln, Natrona, Sweetwater, Uinta | 17 hr |
| Sep 10, 11:15 AM MDT | Fire Weather Watch | RIW | Fremont, Hot Springs, Johnson, Lincoln, Natrona, Sublette and 4 more | 25 hr |
| Sep 10, 11:27 AM MDT | Red Flag Warning | CYS | 33 hr | |
| Sep 10, 11:27 AM MDT | Red Flag Warning | CYS | 58 hr | |
| Sep 10, 2:44 PM MDT | Fire Weather Watch | UNR | 23 hr | |
| Sep 11, 1:27 AM MDT | Red Flag Warning | RIW | Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 5 more | 6 days |
| Sep 11, 1:26 PM MDT | Fire Weather Watch | CYS | 14 hr | |
| Sep 11, 2:29 PM MDT | Red Flag Warning | UNR | 30 hr | |
| Sep 11, 3:31 PM MDT | Special Weather Statement | CYS | Laramie | 29 min |
| Sep 12, 3:54 AM MDT | Fire Weather Watch | CYS | 25 hr | |
| Sep 12, 3:54 AM MDT | Red Flag Warning | CYS | 41 hr | |
| Sep 12, 1:14 PM MDT | Red Flag Warning | UNR | 29 hr | |
| Sep 13, 4:28 AM MDT | Fire Weather Watch | CYS | 23 hr | |
| Sep 13, 4:28 AM MDT | Red Flag Warning | CYS | 39 hr | |
| Sep 13, 2:19 PM MDT | Red Flag Warning | UNR | 28 hr | |
| Sep 14, 3:08 AM MDT | Fire Weather Watch | UNR | 24 hr | |
| Sep 14, 3:29 AM MDT | Red Flag Warning | CYS | 42 hr | |
| Sep 15, 1:07 AM MDT | Fire Weather Watch | CYS | 13 hr | |
| Sep 15, 2:48 AM MDT | Red Flag Warning | UNR | 17 hr | |
| Sep 15, 3:11 AM MDT | Red Flag Warning | BYZ | Big Horn, Johnson, Sheridan, Washakie | 18 hr |
| Sep 15, 2:21 PM MDT | Red Flag Warning | CYS | 29 hr | |
| Sep 17, 1:37 AM MDT | Fire Weather Watch | CYS | 11 hr | |
| Sep 17, 1:37 AM MDT | Fire Weather Watch | CYS | 36 hr | |
| Sep 17, 1:37 AM MDT | Red Flag Warning | CYS | 18 hr | |
| Sep 17, 1:43 AM MDT | Red Flag Warning | RIW | Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 5 more | 4 days |
| Sep 17, 11:37 AM MDT | Fire Weather Watch | RIW | Fremont, Hot Springs, Johnson, Natrona, Washakie | 14 hr |
| Sep 17, 12:54 PM MDT | Red Flag Warning | CYS | 31 hr | |
| Sep 17, 9:19 PM MDT | Special Weather Statement | RIW | Sweetwater | 26 min |
| Sep 18, 1:56 PM MDT | Red Flag Warning | CYS | 30 hr | |
| Sep 19, 1:42 AM MDT | Red Flag Warning | CYS | 42 hr | |
| Sep 19, 1:48 AM MDT | Fire Weather Watch | RIW | Fremont, Natrona, Sweetwater | 23 hr |
| Sep 19, 2:04 PM MDT | Fire Weather Watch | CYS | 37 hr | |
| Sep 19, 9:21 PM MDT | Special Weather Statement | RIW | Park | 39 min |
| Sep 20, 2:09 PM MDT | Freeze Warning | RIW | Lincoln | 18 hr |
| Sep 20, 2:22 PM MDT | Frost Advisory | UNR | Campbell, Crook, Weston | 12 hr |
| Sep 20, 2:38 PM MDT | Special Weather Statement | RIW | Big Horn | 22 min |
| Sep 20, 2:46 PM MDT | Frost Advisory | CYS | Converse | 17 hr |
| Sep 20, 2:46 PM MDT | Freeze Warning | CYS | Albany, Carbon | 17 hr |
| Sep 20, 3:00 PM MDT | Special Weather Statement | RIW | Hot Springs | 30 min |
| Sep 20, 3:45 PM MDT | Special Weather Statement | UNR | Campbell | 60 min |
| Sep 21, 2:17 AM MDT | Fire Weather Watch | RIW | Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 5 more | 11 hr |
| Sep 21, 3:07 AM MDT | Red Flag Warning | CYS | 17 hr | |
| Sep 21, 1:31 PM MDT | Fire Weather Watch | CYS | 8 hr | |
| Sep 21, 1:33 PM MDT | Red Flag Warning | RIW | Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 5 more | 3 days |
| Sep 21, 1:59 PM MDT | Fire Weather Watch | UNR | 25 hr | |
| Sep 21, 9:44 PM MDT | Red Flag Warning | CYS | 22 hr | |
| Sep 22, 2:02 AM MDT | Red Flag Warning | UNR | 24 hr | |
| Sep 22, 4:09 AM MDT | Fire Weather Watch | CYS | 24 hr | |
| Sep 22, 3:22 PM MDT | Red Flag Warning | CYS | 29 hr | |
| Sep 23, 2:00 AM MDT | Red Flag Warning | UNR | 17 hr | |
| Sep 23, 3:44 AM MDT | Fire Weather Watch | CYS | 16 hr | |
| Sep 23, 1:40 PM MDT | Red Flag Warning | CYS | 30 hr | |
| Sep 23, 9:52 PM MDT | Special Weather Statement | RIW | Fremont | 23 min |
| Sep 24, 1:53 AM MDT | Freeze Watch | RIW | Fremont, Sweetwater | 13 hr |
| Sep 24, 2:24 PM MDT | Mesoscale Discussion | SPC | Goshen, Laramie, Niobrara, Platte | 3 hr |
| Sep 24, 2:44 PM MDT | Freeze Watch | RIW | Natrona | 12 hr |
| Sep 24, 2:44 PM MDT | Freeze Warning | RIW | Fremont, Sweetwater | 18 hr |
| Sep 24, 7:55 PM MDT | Fire Weather Watch | CYS | 18 hr | |
| Sep 25, 2:40 AM MDT | Fire Weather Watch | RIW | Fremont, Hot Springs, Lincoln, Natrona, Park, Sublette and 3 more | 20 hr |
| Sep 25, 2:47 AM MDT | Freeze Warning | RIW | Fremont, Natrona, Sweetwater | 30 hr |
| Sep 25, 3:15 AM MDT | Frost Advisory | CYS | Albany, Goshen, Laramie, Platte | 30 hr |
| Sep 25, 3:15 AM MDT | Freeze Watch | CYS | Albany, Carbon, Converse, Niobrara | 11 hr |
| Sep 25, 1:32 PM MDT | Frost Advisory | UNR | Campbell, Crook, Weston | 18 hr |
| Sep 25, 1:39 PM MDT | Red Flag Warning | CYS | 30 hr | |
| Sep 25, 2:24 PM MDT | Freeze Warning | CYS | Albany, Carbon, Converse, Niobrara | 19 hr |
| Sep 25, 10:10 PM MDT | Red Flag Warning | RIW | Fremont, Lincoln, Natrona, Sublette, Sweetwater, Teton and 1 more | 5 days |
| Sep 27, 1:41 AM MDT | Winter Weather Advisory | RIW | Big Horn, Fremont, Johnson, Natrona, Washakie | 32 hr |
| Sep 27, 2:50 AM MDT | Winter Weather Advisory | BYZ | 31 hr | |
| Sep 27, 2:01 PM MDT | Fire Weather Watch | CYS | 25 hr | |
| Sep 28, 1:45 AM MDT | Fire Weather Watch | RIW | Fremont, Lincoln, Natrona, Sublette, Sweetwater, Teton | 12 hr |
| Sep 28, 7:28 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 19 hr |
| Sep 28, 2:33 PM MDT | Red Flag Warning | CYS | 29 hr | |
| Sep 29, 3:09 PM MDT | Flash Flood Watch | SLC | Uinta | 4 days |
| Sep 30, 3:14 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie, Platte | 6 hr |
| Sep 30, 3:28 PM MDT | Red Flag Warning | CYS | 5 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 | |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 31 |
| Flooding | |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Weather Advisory | 2 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 3 |
| Frost Advisory | 4 |
| Fire | |
| Red Flag Warning | 31 |
| Fire Weather Watch | 23 |
| 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 County22
- Natrona County14
- Sweetwater County14
- Lincoln County13
- Uinta County12
- Hot Springs County9
- Teton County9
- Sublette County9
- Goshen County8
- Johnson County8
- Washakie County8
- Crook County7
- Albany County7
- Laramie County6
- Niobrara County6
- Park County6
- Weston County5
- Platte County4
- Big Horn County3
- Campbell County3
- Converse County3
- Carbon County3
- Sheridan County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.