3" seems to be the realistic outcome here for most.
LWX discussion:
.SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/...
Heading into Tuesday, we have a favorable setup for a long duration
of snow across the area. With a broad upper trough over the CONUS
and a CAD wedge over the area with surface high pressure to our
northeast, we`ll have a cold thermal profile in place and Gulf
moisture streaming in aloft from the SW Tuesday and through midweek.
Guidance has been trending later with this system, with precip
now expected to begin mid-late Tuesday morning and overspread
the area SW to NE through Tuesday night. Precip type is expected
to be snow to start, with some sleet/freezing rain mixing in along
our southern tier where temps rise through the day. There is some
uncertainty regarding temperatures during the day Tuesday as the
surface high to our northeast begins to erode. Precip type and
accumulation will be dependent on these temperatures as well as
precip rates. Currently, high temperatures are expected to top
out in the mid 30s.
While temperatures will be dropping Tuesday night after sunset,
WAA aloft to expected to gradually erode the CAD wedge from
south to north overnight. More sleet/freezing rain is expected
to mix in as a result Tuesday night into Wednesday morning.
Winter Storm Warnings and Watches are currently out for Tuesday
and Tuesday night for expected snow totals of 3-5 inches, with
locally higher amounts to 6-7 inches possible. Ice accumulation
of around a tenth of an inch is possible along our southern
tier. Further Warnings and Advisories may be issued today, so be
sure to check weather.gov/lwx/winter for the latest information.
As the initial disturbance moves offshore during the day
Wednesday, a lull in precip is expected before a second
disturbance approaches from the southwest. Precip type is
expected to be more of a sleet/freezing rain mix than snow,
before gradually turning over to rain through Wednesday
afternoon. IP/ZR likely continue along and east of the ridges
where cold air hangs on a bit longer.