moving ridge,
wave a movement like that of a sudden occurrence or increase in a specified phenomenon; "a wave of settlers"; "troops advancing in waves"
flowing,
flow the act of flowing or streaming; continuous progression
debris storm,
debris surge the sudden spread of dust and debris from a collapsing building; "the destruction of the building produced an enormous debris surge"
Verb
surge -
see one's performance improve; "He levelled the score and then surged ahead"