At this time the water level is low, but when the snow melts, this area will be covered with water.
(the water level; is; low; T:At this time) (the snow; melts; ) (this area; will be covered; with water; T:when the snow melts)
the water level the snow this area
is melts will be covered
low T:At this time
with water T:when the snow melts