chicago NWS
The next item of interest is the threat for accumulating snow
sometime late Saturday into Sunday. A significant winter storm is
expected to impact a large chunk of the central, southern, and
eastern CONUS this weekend, and we will largely reside along and
near the northern periphery of this storm. In spite of this,
there continues to be signs that the expansive precipitation
shield to our south may expand northward across our area
sometime Saturday into Sunday. While model and ensemble guidance
does continue to trend in this direction, it is important to
note that considerable uncertainty continues with the specifics
of this system. This is especially the case considering that
some complex interactions are likely to occur with a few
separate waves transitioning through the larger aggregate trough
in the west. Nevertheless, if snow does end up making into our
area but not for DocATL, very cold temperatures will support high ratio (20+ to 1)
fluffy snow which would make for widespread hazardous travel
across the area through the second half of the weekend. Stay
tuned!