The East Troublesome fire has grown significantly in size since its origin on Oct. 14.

“Obviously yesterday was a significant fire day,” Noel Livingston, incident commander for Pacific Northwest Incident Management Team 3, said in a video update. “We saw about 20 miles of fire growth over the course of the afternoon and throughout the night.”

Security video shows fire overcome Grand Lake home. Just talked to homeowner Lisa Mooney and she's pretty sure it's a total loss. Told me she was just up there with her family. #EastTroublesomeFire @CBSDenver pic.twitter.com/WUnIxPLRcH

— Dominic Garcia (@Dom_GarciaTV) October 22, 2020

The fire is about 196 square miles, according to the Incident Information System, at a containment of 5%. 

According to Livingston, the beetle-killed trees and other material combined with the dry conditions, low relative humidities and wind have “pushed that fire through those available fuels.”

“It was primarily in those timbered aspects in the difficult terrain, north of Granby and north of Grand Lake, as it spread …  into Rocky Mountain (National) Park,” Livingston said. “An amazing, really, amount of fire spread yesterday.”

The primary goal of today is to protect communities and structures that are at risk, according to the video update. They want to ensure that residents are out of the way from future fire growth, Livingston said.

Very heavy smoke right now in Estes Park and other parts of southern Larimer County. CDPHE strongly recommends remaining indoors until air quality improves later this morning. #EastTroublesomeFire #cofire https://t.co/gO0dyzMPUI pic.twitter.com/Xiot368IWS

— CDPHE Air Pollution (@cdpheapcd) October 22, 2020

Livingston said he is anticipating another day of large fire growth today due to forecasted high winds and the dry conditions. 

“We obviously still have a lot of available fuel (for) the spark to continue to spread in,” Livingston said.

The Cameron Peak fire is located north of the East Troublesome fire. The closest points of the fire are approximately 8 miles apart in the mountain areas between Tombstone Ridge and Fall Mountain.

It’s now safe to say…

The intensification of the #EastTroublesomeFire in last 24 hours is unprecedented in Colorado.

Beetle kill, drought and winds turned it into a monster on Wednesday.

Multiple homes lost. 100K+ acres burned.
(Photo by Aaron Tipton) pic.twitter.com/yBdZ9Hg680

— Chris Vanderveen (yep…me) (@chrisvanderveen) October 22, 2020

The cause of the fire is still under investigation, according to InciWeb. 

Mandatory evacuations have been ordered on the western part of Rocky Mountain National Park and the west side of the Estes Park area, according to NoCo Alert. 

Laura Studley can be reached at news@collegian.com or on Twitter @laurastudley_.