Dude! I've done some extensive surfing, back in the day. I engaged the stuff of hurricanes and storm surge; encountered rip tides, sharks, porpoise, urchins, jellyfish, and Coast Guard helicopters. My novice treeclimber question is, "Do we have a 'beaufort scale' of sorts to understand when to descend from the trees, ie. before gusts turn to gales?" I'd be a more comfortable treeclimber understanding how to judge, from the treetop, if a wind storm was approaching, preserving enough time to secure climbing partners and gear before too much is risked. I'd like to hear how arborists determine when to make such an critical, hastened descent, if indeed that is recommended. Specifically, I'd like to hear about how either the figure-eight descender or munter hitch, either connected with a spare double-locking carabiner, might play a role in a critical descent circumstance when integrated into a traditional dynamic doubled rope system. The wind in the trees is a wondeful experience. Surf's up!