Precipitation
•Strong
upper-level winds blow the ice particles downstream
(northeastward) into the storm’s anvil.
•Often
precipitation falling out of the leading edge of the anvil
evaporates into drier air aloft, creating visible streaks
called virga.
•To the
southwest of the supercell, a line of convection
cells, called the rear flanking line, will often form.
•Heavy
precipitation, including large hail, will fall on the perimeter
of the updraft, right next to the rain free base.
•Moving
northeast through the thunderstorm, away from the rain free
base one would encounter smaller hail, heavy rain,
moderate rain, an then light rain.