As the days and nights get colder - reaching sub-zero temperatures - thousands of people in the alpine areas still have no adequate shelter.
I think this was the first time in recorded history that there was so much rain in the high alpine areas, and that really basically created these flash floods.
Debris flow triggered by break of ice-lake is one of special occurrences in frigid alpine areas.
This article provides the preventive method of road frost heaving - boiling in alpine area.