02/06/2015 01:59 EST | Updated 04/08/2015 05:59 EDT

Banff National Park avalanche sweeps away climber on military training excercise

A missing climber in Banff National Park was on a winter training exercise with the Canadian military, CBC News has confirmed.

A military spokesperson said the man is a Royal Canadian Air Force search and rescue technician from 17 Wing in Winnipeg.

The man was swept away in an avalanche Thursday night, but rescue crews can't get to him because of the weather and the danger of more avalanches. 

An aerial search is underway but there has been no sign of the climber who disappeared while on the Polar Circus, a popular route near the Weeping Wall area of the park.

"[We are] looking for any clues from the air, so anything on the surface that might give an indication as to where this person might be," said Tania Peters, a spokesperson with Parks Canada.