They changed the AFD format to segments up here,
KEY MESSAGE 3 DESCRIPTION:
Recent guidance trend has to bring a quick but strong area of
low pressure through the TN Valley Sunday before consolidating
off the Mid-Atlantic coast Sunday night into Monday. This track,
which has trended northward quickly over the past 24 hours,
presents a snowy outcome for the forecast area into the
beginning of next week.
Amid a cold air mass, an all snow outcome is fairly certain
barring any continued northward shifts. Will be monitoring
forcing, how long precipitation is present, and any additional
shifts in the low`s track to hone in on forecast totals. At this
range, swings and shifts are not uncommon.
Will want to watch timing of sharp trough arriving through the
Midwest Sunday evening. This could orient mid level jet coupling
to further deepen the parent low as jet strengthens across the
Mid-South. With a lot of strong features (high and low) to
materialize over the CONUS over the next 48 hours, shifts in
thoughts are likely, but accumulating snow is a likely outcome.