Colorado’s fifth-largest wildfire on record is 90% contained as rain showers and thunderstorms continue across the Western Slope, fire officials said.
As of Monday morning, the Lee fire had consumed 137,758 acres, equal to roughly 215 square miles. The burn area is just two acres short of Colorado’s fourth-largest wildfire on record — the 137,760-acre Hayman fire that sparked in 2002.
Other wildfires burning on Colorado’s Western Slope have scorched thousands of additional acres. Fire officials across the state have said hot, dry and windy conditions fueled the flames’ rapid growth.
Storms over the next several days will bring much-needed rain to the drought-stricken Western Slope, according to the National Weather Service. But those storms also increase the risk of lightning and strong winds — weather that can start fires and fan the flames of those already burning.
Jump to: Lee and Elk fires | Derby fire | Stoner Mesa fire | Air quality impacts
Lee and Elk fires, near Meeker
Growth on the largest wildfire burning in Colorado — the fifth-largest ever recorded in the state — has slowed over the past week as firefighters increase containment around the flames.
As of Monday morning, the 137,758-acre Lee fire burning between Meeker and Rifle was 90% contained, fire officials said.
“Minimal work” remains to fully contain the wildfire, Incident Commander Brent Olson said in a Sunday afternoon briefing.
All mandatory evacuation orders were lifted Saturday, but multiple areas around the fire remain on pre-evacuation status. An updated evacuation map for Rio Blanco and Garfield counties is available online.
The Lee fire and nearby Elk fire, which consumed more than 14,500 acres before reaching full containment last week, have together destroyed at least five homes and 14 outbuildings, fire officials said.
Extreme drought, high temperatures and strong winds fueled rapid growth on both fires, which were sparked by lightning west and east of Meeker on Aug. 2.
Rain showers and cooler temperatures helped mitigate the flames last week, which allowed firefighters to steadily increase containment. More showers and thunderstorms are expected in the days ahead as Colorado braces for a monsoonal weather system.
Rain showers and thunderstorms are most likely near Meeker and Rifle between 10 a.m. and 8 p.m. Monday, according to the National Weather Service. Chances of precipitation range from 30% to 50%, forecasters said.
Chances of rain greatly increase later this week in both areas, jumping to 90% Tuesday afternoon and remaining there until 11 a.m. Wednesday, according to hourly forecasts from the weather service.
While the rain is helpful, afternoon thunderstorms also increase the risk of gusty winds, frequent lightning and flash flooding along burn scars, fire officials said.
Heavy rains caused flash flooding in the Lee fire burn area on Sunday afternoon. The water caused a debris flow, which was blocking Piceance Creek Road, officials said in a Sunday afternoon update. It’s unclear if rain caused flooding in the Elk fire burn scar.
Derby fire, in Eagle County
A wildfire burning on the edge of Eagle and Garfield counties has scorched more than 5,300 acres, fire officials said Monday.
The Derby fire is burning on 5,346 acres with no containment, up roughly 100 acres from Sunday and 1,200 acres from Saturday, fire officials said.
Thunderstorm activity and gusty winds have driven the fire south in recent days, meteorologist Ryan Fliehman said in a Sunday afternoon briefing.
Rain showers and thunderstorms started Sunday afternoon and are expected to continue through Wednesday as a “strong monsoonal push of moisture” hits the Western Slope, Fliehman said.
The storms will help dampen the quickly spreading wildfire but may create other problems on the newly charred landscape, like flash flooding, fire officials said.
The Derby fire was discovered on “remote, rugged terrain” in the White River National Forest, about 15 miles from Dotsero in Eagle County, on Aug. 17, according to the U.S. Forest Service.
Mandatory evacuations and pre-evacuations are in place for the northwest corner of Eagle County, including the town of Gypsum, and an eastern section of Garfield County.
Evacuations will be lifted for Sweetwater Valley and Sheep Creek at 10 a.m. Monday, allowing limited access for residents to return home, according to fire officials. Residents will be required to present proof of address at checkpoints along Colorado River Road.
That area will remain on pre-evacuation status and people may be required to re-evacuate if conditions change, fire officials said. Livestock will not be allowed to return yet. The wildfire’s activity remains unpredictable.
“This is not a full repopulation, as the risks are still very high and residents should remain prepared to vacate at any time,” Eagle County Sheriff James Van Beek said in a statement on social media.
Travel within the restricted area must remain extremely limited to protect both residents and fire crews, sheriff’s officials said. The best window for essential travel is between 10 a.m. and 4 p.m., when conditions are safest and least disruptive to emergency operations.
Updated Eagle and Garfield County evacuation maps are available online.
The Eagle County Sheriff’s Office is working on a plan to allow some evacuated residents to access their homes, specifically “those who own property or depend on it for their livelihood,” sheriff’s officials said Sunday. Exact details of that plan were not available, and the evacuation orders remain in place.
At least one building has been destroyed by the wildfire, but it’s unclear what type of building it was.
The U.S. Forest Service also expanded closures in the White River National Forest in Eagle and Garfield counties, including southwest of Sweetwater Lake to the west rim of Deep Creek Canyon. Some BLM lands are also closed, including north and west of Gypsum, north of Coffee Pot Road, west of the Colorado River, east of the White River National Forest boundary and south of Derby Creek.
Stoner Mesa fire, near Dolores
The Stoner Mesa fire is burning on 10,233 acres in a remote section of the San Juan National Forest, fire officials said Sunday.
Multiple areas around the fire — including Mavreeso, Gobble Creek, Fish Creek, Johnny Bull Creek, Dunton, Lizard Head, Horse Creek, Rico and Sulfer Creek — remain on “monitor” status, the step before pre-evacuation orders, according to the wildfire’s evacuation map.
All pre-evacuation orders were lifted Saturday, but sections of the San Juan National Forest remain closed for the wildfire.
As of Sunday, the lightning-sparked Stoner Mesa fire was 41% contained.
Air-quality impacts
Air quality alerts for wildfire smoke near the Derby and Stoner Mesa fires were issued Sunday morning by the Colorado Department of Public Health and Environment.
The warnings, which include southeastern Dolores County, northeastern Montezuma County, western Eagle County and eastern Garfield County, will remain active through at least 9 a.m. Monday.
Smoke will be heaviest in the areas near the fires, especially during the overnight and early morning hours, state health officials said. Incoming storm systems should help improve air quality near the fires.
Smoky conditions are most hazardous for young children, older adults and people with heart disease or respiratory illnesses, according to state health officials.
All residents should limit outdoor activity when heavy smoke is present. If visibility drops to 5 miles or less, the smoke has reached unhealthy levels.
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Lauren Penington
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