Alert archive / Wyoming / Red Flag Warnings in 2026
Red Flag Warning 28, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Sep 13, 2026, 10:03 AM MDT for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Sep 14, 2026, 12:00 PM MDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 13, 2026, 10:03 AM MDT (16:03 UTC)
- In effect from
- Sep 14, 2026, 12:00 PM MDT
- Expired
- Sep 14, 2026, 8:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Natrona County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 65 km from the middle of the area, began a volume at 16:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 1:00 AM MDT | Fire Weather Watch | RIW | Fremont, Natrona, Sweetwater | 9 hr |
| Sep 13, 8:50 AM MDT | Freeze Warning | RIW | Lincoln | 24 hr |
| Sep 13, 11:10 AM MDT | High Wind Warning | RIW | Fremont, Hot Springs, Park | 27 hr |
Nearby
Red Flag Warnings in Wyoming, 2026Every red flag warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.