It is GD cold out. 11.
CTP says the LSV flips to rain before midnight. You just have to hope the thump is heavy.
Great discussion this morning from them:
Moisture will surge northward behind robust isentropic lift and
likely produce a period of moderate snow with potential for an
embedded west-east oriented band of heavy heavy snow (1 inch/hr
rates possible) moving from south to north early Sunday night
(00-06Z Mon). This band will slow down and pivot to become SW-NE
oriented over Warren/McKean Counties and points northeast from
there, with potential for 1-2 inch/hr rates continuing over
Warren and McKean Counties from 06z into the predawn hours.
South and east of the I-80/I-99 corridor, thermal profiles are
expected to warm above freezing first in the 750-850 hPa layer
and then also at the sfc across the lower Susquehanna Valley.
Snow will change to sleet and freezing rain across the south
starting around 10pm and the wintry mix is expected to approach
I-80 by around midnight. Sfc temps will likely warm above
freezing just before midnight across the Lower Susq, bringing a
change to plain rain. Above freezing sfc temps will then push
farther north along the Susquehanna valley toward Williamsport.
In addition to the warm advection, a dry slot will bring a
ribbon of decreased RH in midlevels for much of our central and
eastern zones, leading to decreased SLRs first and then
potentially the loss of cloud ice, resulting in a wider area of
light freezing rain / drizzle that could extend through much of
the CWA with the exception of the far northwest, where the
pivoting snow band will continue. Freezing rain may result in a
glaze of ice, but will generally be low impact due to snow
already on the ground and then temps warming above freezing in
some spots.