Interesting afd update
"The NWP-progged
upward motion and cold air aloft tomorrow morning is an area of
concern, as vertical displacement of this colder air aloft with
large UVV as evidenced by every NWP model tomorrow morning could
promote a longer period of frozen precipitation tomorrow
morning in the I-95 corridor, including Baltimore and Washington
DC Metro Areas. Fortunately, Winter Weather Advisories are
posted in these areas as well, and the only updates I have made
to the forecast is bring the snow/sleet accumulations further
east with around 0.5" accumulations early tomorrow morning in
the metro areas, and up to 1-2 inches in the northwest suburbs
Loudoun/West Montgomery/Howard/N Balt."