On March 12 and 13, 2026, Colorado residents found themselves bracing against some of the strongest winds and most hazardous fire weather the state has seen in recent memory. From the rolling foothills west of Fort Collins to the bustling corridors of Denver, the combination of high winds, low humidity, and unusually warm temperatures set the stage for a series of disruptions that rippled across communities, highways, and even the skies above.
According to the National Weather Service (NWS) in Boulder, the trouble began when several wildfires ignited in Nebraska on March 12, sending a plume of smoke drifting into northeastern Colorado by the following morning. Residents in Fort Collins awoke on March 13 to hazy skies and the faint smell of smoke, prompting concern and a flurry of social media posts. The Poudre Fire Authority confirmed it had responded to two small wildfires west of Horsetooth Reservoir, in the 4900 block of Hilltop Drive. However, officials quickly reassured the public: "The fires are not threatening any structures," the PFA posted, noting that only one engine remained on scene as of 7:30 a.m.
The real story, though, was the wind. Both the NWS and local meteorologists sounded the alarm for what they called "critical fire weather conditions," with red flag warnings blanketing the region. From 11 a.m. to 8 p.m. on March 13, Larimer County and much of Colorado’s Eastern Plains were under alert. The warning spelled out the risks: strong, gusty winds, low humidity, and temperatures well above seasonal averages. As the NWS put it, "Critical fire weather conditions, including strong, gusty winds, low humidity, much above normal temperatures, and recent dryness all spell conditions favorable for rapid wildfire spread should a new fire start."
In the mountains and foothills of the Front Range, the forecast called for gusts between 60 and 80 mph—a recipe for hazardous driving, downed trees, and widespread power outages. In Fort Collins itself, west winds of 15 to 20 mph brought gusts of 25 to 40 mph, and a high temperature of 70°F. The wind was relentless, expected to continue overnight with northwest gusts up to 30 mph, and then ramp up again on March 14 with another red flag warning from 11 a.m. to 9 p.m. Winds on the 14th were forecast to reach 20 to 30 mph, gusting as high as 50 mph in the region and up to 45 mph in Fort Collins, where the mercury was expected to climb to 72°F. And just when you thought things might calm down, there was a chance for rain and snow after midnight, with the wind showing no signs of letting up.
March 12, however, might have been the windiest day in at least a year for Fort Collins. The CSU weather station clocked a 51.6 mph gust—possibly among the top five ever recorded at the station. Across Larimer County, the NWS reported even more staggering numbers: 89 mph at I-25 near the Wyoming border, 82 mph at Buckeye Road, 79 mph near Horsetooth Mountain, 78 mph at Christman Field, and 71 mph at Bellvue. The broader region saw gusts of 94 mph at Warren Air Force Base in Cheyenne, Wyoming, 94 mph in Nederland, 94 mph at Rocky Flats, and 92 mph west of Boulder. These are the kind of winds that make you double-check your patio furniture and keep a wary eye on your neighbor’s trampoline.
With such ferocious gusts, it was only a matter of time before the impacts began to mount. According to Colorado Politics, the Jefferson County Sheriff’s Office reported that eastbound I-70 was closed at exit 256 near Lookout Mountain after a semi-truck rolled on its side. Highway 93 was also shut down between Highway 72 and Highway 128 for the same reason—a semi-truck blown over by the wind. Highway 128 westbound from McCaslin Boulevard to Highway 93 was closed as well. The Colorado Department of Transportation added that northbound I-25 was closed at Highway 14 from Fort Collins to the Colorado state line, while southbound I-25 was shut between Cheyenne and the state line. The message to travelers was clear: if you’re driving a high-profile vehicle, think twice before hitting the road.
Power outages quickly followed. Xcel Energy, the state’s major utility, warned customers to prepare for preemptive shutoffs in Jefferson, Boulder, Broomfield, Larimer, and Weld counties. As of 2 p.m. on March 12, nearly 32,000 customers across Colorado were without power due to 167 unplanned outages. The largest of these blackouts hit Larimer County, where 8,800 customers were affected, followed by nearly 3,000 in Boulder County and more than 3,300 in Jefferson County. Earlier in the day, Arvada and Clear Creek had also experienced major outages. For many, the flicker of the lights was a reminder of how quickly weather can disrupt daily life.
Schools weren’t spared either. The Boulder Valley School District made the decision to preemptively close its mountain schools on March 12, citing high winds, elevated fire danger, and the looming threat of power outages. Nederland Elementary, Nederland Middle-Senior High, Gold Hill Elementary, and Jamestown Elementary all shut their doors, canceling before- and after-school activities. Mountain-area bus service was also suspended, affecting students living west of 4th Street in Boulder.
The chaos extended to the skies. The Federal Aviation Administration issued a ground stop at Denver International Airport just before 9:30 a.m. on March 12 due to high winds. By 2 p.m., the airport had racked up over 800 flight delays and 43 cancellations, with average delays stretching to nearly two hours, according to Flight Aware. For travelers, it was a day of frustration and long waits, as winds made takeoffs and landings a risky proposition.
Even as the winds howled, the thermometer soared. Denver was expected to reach a high of 69°F on March 12, about 14 degrees warmer than the city’s average for that date and just six degrees shy of the record set in 1916. Winds in Denver gusted up to 34 mph, adding to the sense that Mother Nature was flexing her muscles in more ways than one.
Through it all, meteorologists and emergency officials urged caution. The NWS warned, "Avoid any outdoor activities that may produce a spark! Be ready to take quick action should a fire start nearby!" The message was clear: in conditions like these, a single careless moment could lead to disaster.
For Coloradans, these back-to-back days of wind, fire risk, and disruption served as a powerful reminder of the region’s volatile spring weather—and the need to stay alert, prepared, and resilient when nature decides to put on a show.