Snow dusts one of Colorado’s 14ers after warm months: What to know heading out

DENVER (KDVR) — It might be in the 90s in Denver, but one of Colorado’s mountain peaks was dusted with snow in the past week.

While Longs Peak remains largely free of snow, several recent, strong thunderstorms left a coating of snow on the 14er. Conditions did not persist for very long, according to the Rocky Mountain National Park Forest Service, nor was it the only location that likely saw some of the icy precipitation.

However, the changing conditions only 90 minutes away from Denver’s heat highlights the need for recreationists to prepare for their treks, and also be prepared to turn back if weather conditions change.

Colorado is currently experiencing monsoon season, with a monsoonal front pushing through Colorado on Monday and causing flash flooding, hail and high winds across portions of the state. Many of the monsoonal storms sweep through Denver in the afternoon.

In the high country, those conditions can be even quicker and more dangerous. Hazards include ice formation, which can occur quickly at higher elevations and in lower temperatures.

“Returning to treeline by noon is recommended to help mitigate exposure to lightning storms,” the National Park Service wrote in its Monday Longs Peak condition report. “Any venture beyond the trailhead should involve proper planning and preparedness.”

That means carrying traction devices, like microspikes or crampons, and an ice axe might be wise for traveling on the upper mountain. The Forest Service recommends recreationists bring warm clothes, waterproof layers, extra food and water, a headlamp, a first aid kit and a cell phone.

If traveling alone, the Forest Service recommends telling a friend or family member when you expect to return and where you are planning to go.

“Even a minor accident while traveling alone on the mountain can quickly turn into a serious situation. As always, please be prepared to turn around when conditions exceed your abilities,” the Forest Service stated.

The Forest Service noted specifically for Longs Peak that the Keyhole route is in full summer conditions, meaning it can be climbed entirely on rock. However, various sections could see ice formation overnight due to precipitation and overnight lows.

“These create an enormous potential for slips on icy rock, especially in the early morning hours before strong sunshine. These patches of ice may be difficult to see and/or obscured by shadows,” the Forest Service wrote.

However, if you’re staying out of the mountains, you have some time before the flakes start falling. According to National Weather Service data, Denver’s earliest first freeze was recorded in September 2020, and the earliest snowfall was recorded on Sept. 3, 1961. However, on average, the first measurable snowfall is around Oct. 18 each year.

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