RAH is not totally discounting the possibility:
SHORT TERM /MONDAY AND MONDAY NIGHT/...
As of 252 PM Sunday...
As we get into the morning hours, the surface boundary will begin to
retreat northward (slowly) as a warm
front, Just off the surface,
increasing southwesterly winds on the nose of the 925-850mb warm
front will sharpen the
inversion and result in shallow forcing for
ascent atop the
quasi-stationary surface boundary.
Cool
northeasterly flow and widespread stratus will likely develop around
daybreak on the cool side of the front, and this will undoubtedly
make for a challenging temperature forecast as there is considerable
spread among the models. NAM/MET which typically does a good job
with CAD regimes keeps temperatures in the upper 40s/lower 50s along
and north of I-85 for much of the day. GFS and other guidance depict
a much shallower cold layer which could erode by early afternoon.
Given the relatively weak nature of the surface high (1026mb) and
its position north of
latitude 50N,
I`m inclined to go a bit warmer
than the NAM but still undercut the GFS and other warmer guidance.
Highs should top out in the low/mid 50s across the north, with much
warmer temperatures (70s) to the south. The
NAM, with its sharper
inversion and increased
moisture pooling in the low levels, is also
indicating the potential for some light rain/drizzle near the
boundary but I will keep the forecast dry for the time being given
its wet bias.