ST. GEORGE — Warnings of critical fire conditions blanketed much of the U.S. Southwest on Saturday and Sunday, as crews in northern New Mexico worked to stop the growth of the nation’s largest active wildfire.
The seven-week-old fire, the largest in New Mexico history, has burned 491 square miles of forest in rugged terrain east of Santa Fe since being started in April by two planned burns.
Crews were patrolling partially burned areas and clearing and cutting containment lines, including primary ones near the fire as bulldozers scraped backup lines farther away.
The National Weather Service issued Red Flag Warnings of critical fire conditions for parts of Utah, Arizona, Colorado, Kansas, Nevada, New Mexico, Oklahoma and Texas. Those conditions are a combination of strong wind, low relative humidity and dry vegetation.
The return of drier and warmer weather with stronger winds posed a threat of increased fire activity over the Memorial Day weekend, prompting officials to urge the public to secure vehicle chains and to be careful with possible fire sources. Temperatures in the mid-to-high 70s with winds up to 15 mph were forecast by the National Weather Service for the St. George area.
Temperatures had reached highs of 99 and 97 on Thursday and Friday, have cooled since and are expected to be back in the high 80s and low 90s by Wednesday, according to the NWS.
Saturday’s temperatures in the 80s, combined with low relative humidity and winds approaching 40 mph resulted in a day’s long Red Flag Warning for most of Southwest Utah.
“The last thing we need right now is another ignition,” said Jayson Coil, an operations section chief.
Forecasts called for wind gusts up to 50 mph (80 kph), with critical fire conditions continuing into Monday, followed by more favorable weather later in the coming week, said Bruno Rodriguez, the fire management team’s meteorologist.
The strong winds could fan flames and cause the fire to jump containment lines and race forward, said John Chest, a fire operations manager.
“Imagine traveling in your car and the fire can outpace you,” Chester said. “That’s the kind of extreme fire behavior that we’re talking about.”
Nearly 3,000 firefighters and other personnel were assigned to the fire, which was contained around 48% of its perimeter.
Initial estimates say the fire has destroyed at least 330 homes but state officials expect the number of homes and other structures that have burned to rise to more than 1,000 as more assessments are done.
Elsewhere, 150 firefighters battled a wind-driven fire that burned 9 square miles (24 square kilometers) of grass, brush and salt cedar about 14 miles (22.5 kilometers) southwest of Parker, Arizona. Winds up to 30 mph forced the California blaze to jump the Colorado River into Arizona on Saturday afternoon.
The fire forced the evacuation of a recreational vehicle park after starting Thursday and was 44% contained, officials said.
The cause of the fire was under investigation.
Written by PAUL DAVENPORT, The Associated Press
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