The common caution provided by avalanche forecasters focuses on 30 to 35 degrees. Fracture profiles are performed at where the avalanches END. Consider the example of 4 skiers and the avalanche triggered not by skier 4 but by ALL 4 by concurrent activity with shallow DH causing a mixed mode anti-crack which becomes a self-propagating critical crack then super-critical crack, slope parallel. Far too much attention is given to the slope normal crown at 30 to 35 degrees when skiers 1, 2 and 4 are all in locally flatter areas where Hoar is more persistent.
Thank you RUclips algorithm, very educational video.
The common caution provided by avalanche forecasters focuses on 30 to 35 degrees. Fracture profiles are performed at where the avalanches END. Consider the example of 4 skiers and the avalanche triggered not by skier 4 but by ALL 4 by concurrent activity with shallow DH causing a mixed mode anti-crack which becomes a self-propagating critical crack then super-critical crack, slope parallel. Far too much attention is given to the slope normal crown at 30 to 35 degrees when skiers 1, 2 and 4 are all in locally flatter areas where Hoar is more persistent.