Pseudo-Warm Front A boundary between a supercell's inflow region and the forward-flank downdraft (or FFD).
It is attached to a supercell's general updraft and is oriented roughly parallel to the pseudo-warm front, i.e., usually east to west or southeast to northwest. As with any inflow band, cloud elements move toward the updraft, i.e.
From a meteorological view, as the cool and warm air on adjacent sides of the pseudo-warm front rush westward into the mesocyclone, there is a tendency for the north side cool air to slide beneath the warm air, which, in turn, ...
The main region of downdraft in the forward, or leading, part of a supercell, where most of the heavy precipitation is. Compare with rear flank downdraft. See pseudo-warm front and supercell.
Fractus ...
Forward Flank Downdraft - The main region of downdraft in the forward, or leading, part of a supercell, where most of the heavy precipitation is. Compare with rear flank downdraft. See pseudo-warm front, and Fig. 7, supercell.
Beaver('s) Tail - A particular type of inflow band with a relatively broad, flat appearance suggestive of a beaver's tail. It is attached to a supercell's general updraft and is oriented roughly parallel to the pseudo-warm front, i.e.
(but occasionally bows outward to the east or southeast in the case of an occluded meso-cyclone), and is characterized by advancing of the downdraft air toward the inflow region. It is a particular form of gust front. See also pseudo-warm front.
 See also: Storm, Warm front, Updraft, Front, Supercell
  
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