discussion from Huntsville:
As the aforementioned trof to our E continues to vacate the area, a
sfc high from the High Plains slides to the SE, bringing with it
colder air. Temperatures in our area Thursday morning will start out
in the upper 20s with light snow possible across locations N of the
TN River. A rain/snow mix is possible mainly for the southern-most
locations within the CWFA. It all depends on how much wet-bulbing
occurs on Thursday. With a saturated sounding in the -10 to -20F ice-
growth region, believe that this seeder-feeder scenario will take a
bit to play out, but that eventually what mid-level dry air there
is, will moisten enough to allow snow at the sfc. Web-bulb temps at
the sfc are just below freezing, so what light snow that *may* fall
would be rather slushy. Then again, a few degrees one way or another
will completely change that thinking if the models flip-flop on
their next run. For now, have formally included snow in for
Thursday.
What liquid precipitation that`s left by Thursday night will all
change to snow overnight into Friday morning, with morning lows
again falling into the middle to upper 20s. A 1031mb sfc high will
be settled into the region, with the coldest air in place by this
time. Daytime highs Friday will be colder than Thursday, so felt a
little more confident in the potential for the "s-word" during this
timeframe. It`s too far out to tell with complete clarity, however,
so stay tuned for further information about this potential for
winter wx.
The weekend and beyond is just about as murky as the mid-late week
timeframe, with another possible shot of some light snow Saturday
morning