Early avalanche season possible

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— Routt County Search and Rescue is on its toes as heavy snow and mild temperatures could mean an early avalanche season in the Yampa Valley.

Avalanches typically do not hit until March, but warmer temperatures expected this weekend could bring the season's first slides to Routt County, Search and Rescue member Darrel Levingston said this week.

"You get a lot of really light, fluffy snow when it's cold, and that doesn't pack down well - it's very unstable," Levingston said. "Once it warms up, the top layers will start to thaw and set up. So you have a really hard-packed layer of snow on top of a really fluffy layer of snow. That's what causes avalanches."

Although Routt County Search and Rescue has not responded to any avalanche calls yet this season, avalanche activity has been high across the country this winter, Levingston said.

"We already have as many avalanche-related deaths in America as we usually do for the whole winter," Levingston said. "And we're just starting to come up on what's traditionally avalanche season."

While 30-degree-plus temperatures were recently forecast for the weekend, more storms now appear to be on the way, said National Weather Service meteorologist Jeff Colton.

The storm that dumped snow on Steamboat Springs last night is expected to peter out today but could be followed by a minor storm system aiming at Steamboat for Saturday night, Colton said. Saturday's storm will bring one to three inches of snow at higher elevations on the mountain and only a small accumulation in town, he said.

Despite the snow, daytime high temperatures are expected to hit 25 to 35 degrees Saturday and Sunday, he said.

A storm system Monday is expected to bring four to eight inches of snow, and yet another strong storm is expected to drop up to a foot of snow Wednesday, Colton said.

Avalanches are most common on slopes of about 30 degrees, which is not terribly steep, Levingston said.

"A lot of areas that people think are safe can really be a dangerous spot," he said. "It doesn't have to be really remote; you could be 100 yards from the road. It all depends on what happens with the snow and the slope."

Comments

Token 6 years, 10 months ago

Hey everybody, lets all be extra careful in the backcountry!

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seabirth 6 years, 10 months ago

not a great article. this winter has been a terrible winter throughout the western usa for avalanche fatalities, so the "season" is well underway and not just about to start.

as for the most common slope angle it is not 30 degrees, but 35-45 degrees.

while warming can cause instability in the snowpack, the major wind event that just occured will have far more impact on avalanche danger than the temps due to the heavy loading of slopes that happened as you can see in the forecast link below. all this snow is wonderful, but be very cautious after a severe windstorm.

here are some links with some more info: http://www.avalanche.org/~uac/ed-faq.htm http://avalanche.state.co.us/Forecasts/Steamboat/

people be safe out there, and do not rely on the pilot to educate you about avalanches.

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