Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Nashville Tennessee
838 PM CST Sat Mar 8 2014
Only minor changes made to ongoing forecast. Latest surface observation
show cold front progressing through the County Warning Area and currently near a
Hohenwald to Cookeville line. Radar shows a few light showers
spreading into western zones...but hrrr indicates this activity
will struggle to move eastward with only isolated activity
overnight mainly west of I-65. Will keep slight chance probability of precipitation going
for all areas but should not amount to much. Otherwise...adjusted
sky cover and temperatures based on observation with rest of forecast generally
Previous discussion... /issued 528 PM CST Sat Mar 8 2014/
Update...for 00z aviation.
Aviation...00z taf discussion.
A weak cold front will pass through middle Tennessee tonight and
bring in some light rain and lowered flight categories. Several
hours of IFR ceilings are expected behind the front...but conditions
should improve quickly after the sun comes up Sunday morning.
Winds will be light throughout frontal passage veering to the
north after midnight.
Previous discussion... /issued 144 PM CST Sat Mar 8 2014/
skies have remained mostly clear with temperatures in the 60s most
locations at early afternoon. Cold front extends down along the
Ohio River to near Poplar Bluff Missouri then into western Arkansas.
Colder temperatures and clouds behind the front with some light rain
breaking out in far southern Illinois back into Missouri but not
a lot at this time. Still can see some sleet/snow on the ground in
visible across bootheel and western Kentucky. Snow and ice field
has continued to rob the air of its heat in trying to melt whats
on the ground which has held temperatures down in these areas. Surface
front will move through middle Tennessee tonight with a chance for
light rain/drizzle with very light qfp. Temperatures tonight down in middle
and upper 30s north half with near 40 south half. High pressure
settles into the area on Sunday with temperatures not as warm as today
with light northerly flow down into middle Tennessee. Clear Sunday
night with lows upper 30s to lower 40s and a light southwest wind.
Upper ridge builds northward with temperatures warming well into the 60s
Monday and Tuesday. On Tuesday a system in the western Gulf begins
to move this way at the same time another system in the central
and Southern Plains rolls eastward with rain advancing northward
and into middle Tennessee Tuesday night and Wednesday. Systems
exit Wednesday night followed by cooler temperatures.