WELL THIS ABOUT SUMS IT UP FOR US PPL IN CENTRAL ALABAMA.....
National Weather Service Birmingham AL
351 AM CST Mon Jan 20 2025
Winter weather remains forecast for portions of Central Alabama
Tuesday afternoon into Tuesday night as a
low pressure system
develops in the western Gulf and
moisture overruns a
front along
the northern Gulf. Guidance remains conflicted as to whether this
low will remain closed off, or devolve into an open wave surface
trough as it moves east. Either way, newly available
hi-res
guidance is suggesting our snow chances are dwindling near the
I-20 corridor and are clustering snow accumulations farther south
near US Hwy 80 and I-85. Various forecast soundings near I-20
depict dry air below 700
mb which will cause sublimation through
descent without some increase in
moisture and lift. Furthermore,
it appears best
frontogenesis will establish south of our
forecast area, somewhere just north of I-10. Thus,
PoPs have
decreased and shifted south, and
QPF has been decreased as well.
I`ve maintained fairly high
PoPs across the south where forecast
soundings depict better saturation through the column, including
saturation in the DGZ and collocated negative
omega values. Areas
south still have 40-60%
probability of receiving 1" or more of
snow which would cause big impacts to travel considering forecast
temperatures Tuesday night into Wednesday morning. Arguments can
be made that even light snow accumulations could cause big
problems as well, as history has proven. We`ll be making headline
changes shortly,
likely upgrading portions of the
watch area to a
warning.