Alert archive / Wyoming / 2011
Weather alerts in Wyoming, September 2011
41 weather alerts in September 2011, 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 2011. Tap one for its archive.
- Alerts
- 41
- Warnings
- 11
- Watches
- 4
- Advisories
- 5
- Busiest day
- September 13, 20117 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 |
|---|---|---|---|---|
| Aug 31, 7:33 PM MDT | Special Weather Statement | CYS | Laramie | 27 min |
| Aug 31, 7:45 PM MDT | Special Weather Statement | CYS | Laramie | 60 min |
| Sep 1, 2:24 AM MDT | Red Flag Warning | RIW | Fremont, Lincoln, Natrona, Sweetwater, Uinta | 18 hr |
| Sep 1, 9:33 PM MDT | Fire Weather Watch | CYS | 5 hr | |
| Sep 2, 2:27 AM MDT | Red Flag Warning | RIW | Fremont, Hot Springs, Lincoln, Natrona, Park, Sublette and 2 more | 18 hr |
| Sep 2, 2:43 AM MDT | Red Flag Warning | CYS | 17 hr | |
| Sep 3, 11:26 AM MDT | Frost Advisory | CYS | Albany, Carbon, Laramie | 21 hr |
| Sep 5, 2:19 PM MDT | Red Flag Warning | CYS | 10 hr | |
| Sep 7, 1:33 PM MDT | Special Weather Statement | RIW | 42 min | |
| Sep 11, 2:10 AM MDT | Fire Weather Watch | CYS | 13 hr | |
| Sep 12, 2:54 PM MDT | Areal Flood Advisory | RIW | Teton | 2 hr |
| Sep 12, 3:30 PM MDT | Special Weather Statement | RIW | Teton | 45 min |
| Sep 12, 5:40 PM MDT | Special Weather Statement | RIW | Teton | 35 min |
| Sep 13, 2:28 PM MDT | Special Weather Statement | RIW | Sublette | 32 min |
| Sep 13, 2:30 PM MDT | Special Weather Statement | RIW | Natrona | 45 min |
| Sep 13, 3:08 PM MDT | Special Weather Statement | RIW | 52 min | |
| Sep 13, 3:39 PM MDT | Special Weather Statement | RIW | Sublette | 51 min |
| Sep 13, 3:47 PM MDT | Special Weather Statement | RIW | Natrona | 43 min |
| Sep 13, 4:13 PM MDT | Special Weather Statement | RIW | 47 min | |
| Sep 13, 5:47 PM MDT | Special Weather Statement | RIW | 43 min | |
| Sep 13, 6:17 PM MDT | Special Weather Statement | RIW | Fremont | 43 min |
| Sep 13, 6:41 PM MDT | Special Weather Statement | RIW | Fremont | 49 min |
| Sep 14, 5:43 PM MDT | Special Weather Statement | RIW | Sweetwater | 62 min |
| Sep 14, 6:19 PM MDT | Special Weather Statement | RIW | 41 min | |
| Sep 14, 7:09 PM MDT | Special Weather Statement | RIW | 36 min | |
| Sep 17, 1:33 PM MDT | Freeze Warning | RIW | Fremont, Lincoln, Sublette, Sweetwater, Teton | 19 hr |
| Sep 17, 5:33 PM MDT | Special Weather Statement | CYS | Albany | 57 min |
| Sep 19, 2:23 AM MDT | Red Flag Warning | BYZ | Sheridan | 19 hr |
| Sep 19, 5:50 PM MDT | Special Weather Statement | BYZ | Sheridan | 55 min |
| Sep 19, 6:48 PM MDT | High Wind Warning | RIW | Johnson | 7 hr |
| Sep 19, 7:19 PM MDT | Special Weather Statement | BYZ | Sheridan | 56 min |
| Sep 19, 7:42 PM MDT | Special Weather Statement | BYZ | Sheridan | 33 min |
| Sep 20, 7:51 PM MDT | Frost Advisory | CYS | Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more | 12 hr |
| Sep 20, 8:00 PM MDT | Frost Advisory | UNR | Campbell, Crook, Weston | 11 hr |
| Sep 20, 8:51 PM MDT | Freeze Warning | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 3 more | 12 hr |
| Sep 21, 12:53 PM MDT | Frost Advisory | CYS | Laramie | 19 hr |
| Sep 26, 11:19 AM MDT | Red Flag Warning | CYS | 7 hr | |
| Sep 27, 11:42 AM MDT | Fire Weather Watch | CYS | 13 hr | |
| Sep 28, 12:59 AM MDT | Red Flag Warning | CYS | 18 hr | |
| Sep 29, 3:05 PM MDT | Fire Weather Watch | BYZ | Big Horn, Johnson, Sheridan, Washakie | 14 hr |
| Sep 30, 4:04 AM MDT | Red Flag Warning | BYZ | Big Horn, Johnson, Sheridan, Washakie | 41 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 | 21 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| Fire | |
| Red Flag Warning | 8 |
| Fire Weather Watch | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County6
- Sheridan County6
- Laramie County5
- Natrona County5
- Sweetwater County5
- Lincoln County4
- Sublette County4
- Teton County4
- Johnson County4
- Albany County3
- Big Horn County3
- Washakie County3
- Uinta County2
- Hot Springs County2
- Park County2
- Carbon County2
- Converse County1
- Goshen County1
- Niobrara County1
- Platte County1
- Campbell County1
- Crook County1
- Weston County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.