Derby Fire: Operations video update – August 23

Northern Rockies Complex Incident Management Team 3

#DerbyFire Ops Update Saturday afternoon, Aug. 23, 2025

Operations Section Chief, Philip Knaub, provides an overview of firefighting tactics.

Derby Fire: No significant growth overnight and less active today

There was no significant growth on the Derby Fire north of Dotsero, CO overnight. Night operations focused on structure protection in the Sweetwater Canyon area. The fire has been less active today.

Hotshot crews are working to construct and improve fireline directly adjacent to the fire’s edge along the southwest side. Conditions this afternoon have allowed firefighters to conduct a burnout operation on the southern edge of the fire, as discussed in the video here. Smoke may be more visible during the operation. Air resources are on hand for support.

Derby Fire official information

FACEBOOK – Derby fire @derbyfire
INCIWEB – Derby Fire
WHITE RIVER NATIONAL FOREST – facebook.com/whiteriverNF @whiteriverNF
_______________

EAGLE COUNTY INFO
REGISTER FOR ALERTS – 911 alerts
INCIDENT UPDATES – EC Emergency or Reachwell app
FACEBOOK – facebook.com/eaglecountyso@eaglecountyso
________________

GARFIELD COUNTY INFO
REGISTER FOR ALERTS – 911 alerts or Reachwell app
INCIDENT UPDATES / SUBSCRIBE – Garfield County emergency
FACEBOOK – facebook.com/garcosheriff @garcosheriff

Derby Fire: Operations video update – August 23

WRNF: Forest Order for Derby Fire expands closure

White River National Forest

U.S. Forest Service – White River National Forest has expanded their public closure in the vicinity of the #DerbyFire for firefighter and public safety.

The new Forest Order expands the closure to the southwest, including the area from southwest of Sweetwater Lake to the west rim of Deep Creek Canyon.

8-23-25-USFS forest closure area

The entire White River National Forest remains under Stage 2 Fire Restrictions, meaning no campfires are allowed anywhere on the Forest, among other restrictions.

WRNF: Forest Order for Derby Fire expands closure

Lee and Elk fires daily update and map

Northern Rockies Complex Incident Management Team 1

Incident Commander Brent Olson

Location:  11 miles south of Meeker, Colorado
Start Date: 08/02/2025
Cause: Lightning
Size: Lee Fire: 137,758 acres | Elk Fire: 14,518 acres
Containment: Lee Fire: 80% |  Elk Fire: 100%
355 Total Personnel;   5 Helicopters;   15 Engines;   3 Hand Crews;   7 Water Tenders;   2 Dozers

KEY Message

Rio Blanco County has OPENED the Piceance Creek Road (CR 5). Crews are still working in this area so please use caution, reduce driving speed, and give them space to work.  

Current Status

Lee Fire – Afternoon storms yesterday produced nearly 0.20 inch of rain in Meeker, but no measurable amount over the fire area. Suppression efforts were successful in the northwestern corner of the fire area on a hot spot that was detected. Consequently, firefighters increased foot patrols and perimeter checks, extinguishing hot spots and strengthening lines were needed. Today crews will begin chipping and debris removal operations left over from previous fuels reduction work. With the potential for more thunderstorms with frequent lightning and gusty outflow winds, initial attack resources have been identified and are ready in the event of new starts.

Elk Fire – Resources have completed much of the planned suppression repair efforts and hope to complete this work by end of shift.

Weather and Fire Behavior

Scattered showers and thunderstorms are expected again today with gusty winds and frequent lightning being the main concerns. Sunday onward, widespread showers and thunderstorms are expected daily with moderate to heavy rainfall being the main concerns. This will lead to an elevated level of concern for burn scar debris flows and flash flooding into early next week.

Closures and Special Messages

For accurate up-to-date information on evacuations and road closures for Rio Blanco County go to the Rio Blanco County Sheriff’s Office Facebook page at: https://www.facebook.com/RioBlancoCountySheriffsOffice. For Garfield County updates go to: https://www.garfieldcounty.net/. USFS White River National Forest and BLM closure rescission information is available at: https://inciweb.wildfire.gov/incident-closures/cowrd-lee-fire

8-23-25 Lee Fire map
Lee and Elk fires daily update and map

Derby Fire: Weather update and facts

Northern Rockies Complex Incident Management Team 3

Derby Fire quick facts: August 23, 2025, 8:15 am

Total acreage: 4,112 acres
0% containment
378 personnel/resources
#DerbyFire#FireYear2025

Structure protection and assessment efforts are ongoing. Handcrews and heavy equipment will continue to build and improve control lines, supported by air resources as weather conditions allow.

Derby Fire official information

FACEBOOK – Derby fire @derbyfire
INCIWEB – Derby Fire
WHITE RIVER NATIONAL FOREST – facebook.com/whiteriverNF @whiteriverNF
_______________

EAGLE COUNTY INFO
REGISTER FOR ALERTS – 911 alerts
INCIDENT UPDATES – EC Emergency or Reachwell app
FACEBOOK – facebook.com/eaglecountyso@eaglecountyso
________________

GARFIELD COUNTY INFO
REGISTER FOR ALERTS – 911 alerts or Reachwell app
INCIDENT UPDATES / SUBSCRIBE – Garfield County emergency
FACEBOOK – facebook.com/garcosheriff @garcosheriff

Derby Fire: Weather update and facts

CDPHE: Air quality health advisory for wildfire smoke

Colorado Department of Public Health and Environment

Avisos en Español para todo el Estado (Colorado)

Issued for southeastern Dolores and northeastern Montezuma Counties
Issued at 6:46 AM MDT, Saturday, August 23, 2025

Issued by the Colorado Department of Public Health and Environment

Affected Area: Southeastern Dolores and northeastern Montezuma Counties. Locations include, but are not limited to Stoner.

Advisory in Effect: 9:00 AM MDT, Saturday, August 23, 2025 to 9:00 AM MDT, Sunday, August 24, 2025

Public Health Recommendations: If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy.

Outlook: Locations near the Stoner Mesa Fire, including Highway 145 and the Stoner area, are experiencing heavy smoke. Smoke is expected to continue through Sunday morning, especially during the overnight and early morning hours.

Colorado statewide air quality conditions, forecasts, and advisories

Smoke blog

More information about smoke and your health

CDPHE: Air quality health advisory for wildfire smoke

Derby Fire: Video briefing

Northern Rockies Complex Incident Management Team 3

Here is the #DerbyFire briefing. We sincerely apologize for the delay, there were extreme technical difficulties we hope to have ironed out tomorrow.

Northern Rockies CIMT – Team 3 give an update on the current situation of the Derby Fire for August 21st, 2025.

Community meeting tonight

Please join us for a community meeting tonight at 6:30 pm at the Gypsum Town Hall, 50 Lundgren Blvd, Gypsum, CO. Spanish language translation will be available. We will try again with live streaming.

The Derby Incident Operations Section Chief and Incident Commander, as well as the Eagle County Sheriff, will provide an update on the current situation and operational strategies. Officials will be available for questions after the update.

For more information on the Derby Fire, please visit: https://inciweb.wildfire.gov/incident…/cowrf-derby-fire

Email: 2025.Derby@firenet.gov
Fire Information Line: 970-355-3283 (staffed 8am – 8pm)

Derby Fire: Video briefing

Derby Fire: Community meeting Friday, August 22

Northern Rockies Complex Incident Management Team 3

Please join us for a community meeting Friday, August 22, 2025 at 6:30 pm at the Gypsum Town Hall, 50 Lundgren Blvd, Gypsum, CO. Spanish language translation will be available. We will try again with live streaming.

The Derby Incident Operations Section Chief and Incident Commander, as well as the Eagle County Sheriff, will provide an update on the current situation and operational strategies. Officials will be available for questions after the update.

For more information on the Derby Fire, please visit: https://inciweb.wildfire.gov/incident…/cowrf-derby-fire

Email: 2025.Derby@firenet.gov
Fire Information Line: 970-355-3283 (staffed 8am – 8pm)

Derby Fire: Community meeting Friday, August 22

Derby Fire: Community meeting being recorded for posting online

Northern Rockies Complex Incident Management Team 3

Due to technology issues, we are unable to go Live with our briefing that was scheduled for 6:30 p.m. However, we are in the process of recording the full briefing from our fire experts and will have it posted to this channel as soon as possible.

If you have questions, you may type them in the comments once it’s posted, call our information line at 970-355-3283 or email us at 2025.derby@firenet.gov. We appreciate your patience and will continue working to get you up-to-date information.

Derby Fire: Community meeting being recorded for posting online

Lee Fire: Operational video August 20

Northern Rockies Complex Incident Management Team 1

August 20, 2025 Operational Briefing Video with Operations Section Chief Drew Daily

Rio Blanco County Sheriff’s Office
BLM Colorado Fire
Bureau of Land Management – Colorado
Colorado Division of Fire Prevention and Control
U.S. Forest Service – White River National Forest
Bureau of Land Management Fire
Garfield County Sheriff’s Office – Colorado

Lee Fire: Operational video August 20

Lee Fire: Smoke visible

Northern Rockies Complex Incident Management Team 1

As the weather remains hot and dry, interior pockets of unburned fuel continue to burn, producing prominent smoke columns.

8-19-25 Lee Fire smoke visible in columns

8-19-25 Lee Fire smoke visible

Photos: Lee Fire Air Attack

Rio Blanco County Sheriff’s Office
Bureau of Land Management – Colorado
BLM Colorado Fire
Colorado Division of Fire Prevention and Control
U.S. Forest Service – White River National Forest
Bureau of Land Management Fire
Garfield County Sheriff’s Office – Colorado

Lee Fire: Smoke visible