Severe Wildfire ● Closed

Red Flag Warning issued September 13 at 12:57PM MDT until September 14 at 8:00PM MDT by NWS Cheyenne WY, United States of America

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from noon to 8 PM MDT Monday. The
Fire Weather Watch is no longer in effect.


* AFFECTED AREA...Fire weather zones 417-423, 427, 432, and 433.

* WIND...West to Northwest winds 20 to 40 mph, gusts between 45
to 60 mph.

* HUMIDITY...Relative humidities as low as 10 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

Measurements

Coordinates39.9645, -100.8105
RegionNiobrara/Lower Elevations of Converse/Thunder Basin National Grassland; Southwest Carbon County; North Snowy Range Foothills
Location Precisioncountry
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyExpected
Cap CertaintyLikely
Cap Expires2026-09-14T06:00:00-06:00

Official source

Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by WMO Alert Hub (national weather services).

View original report

Also reported by: WMO

This event as JSON · API and licence

Source updated 36 days ago (Sep 13, 2026 18:59 UTC) · we last heard from WMO Alert Hub (national weather services) 46 seconds ago

On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.

About this location

The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.

Area as the agency stated it: Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland; Southwest Carbon County; North Snowy Range Foothills

Official authorities in United States

If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.

More for United States →

What to do

Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.

Defensible space, evacuation go-bags, smoke protection, and returning home safely after a wildfire.

Open Wildfire Safety Guide →

Earlier wildfire events in United States

Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.

Nearby & related events

Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.