Water acts as a lubricant for snow crystals, so when the temperature of the snow climbs above freezing, mountaineers beware.
(Water; acts; as a lubricant for snow crystals) (the temperature of the snow; climbs; above freezing) (mountaineers; beware; T:when the temperature of the snow climbs above freezing)
Water the temperature of the snow mountaineers
acts climbs beware
as a lubricant for snow crystals
above freezing
T:when the temperature of the snow climbs above freezing