FXUS64 KOHX 210203

Area Forecast Discussion
National Weather Service Nashville TN
903 PM CDT Tue Mar 20 2018




Latest radar imagery, surface observations, and numerous social
media reports indicate light snow with some rain mixed in
continues in bands across the northeastern half of the cwa. This
activity is in association with an upper level low centered near
Louisville, with these bands of snow rotating into the area from
the northwest. As the upper low shifts off to the east overnight
per guidance, the bands of snow will also gradually shift
eastward into the Upper Cumberland and Cumberland Plateau. See no
reason to expand the Winter Weather Advisory to other counties at
this time. However, nearly all of the latest short term guidance
has upped snow totals considerably in the northern Plateau
Counties, although much of this guidance seems overdone due to
the warm ground and surface temperatures near or above freezing
which will limit snow amounts until later tonight. Nevertheless,
have bumped up totals from Jamestown down to around Monterey into
the 1 to 2 inch range for this event, which matches up well with
event totals from LMK/JKL/MRX. In the rest of the Winter Weather
Advisory area, anywhere from a dusting up to 1 inch of snow can be
expected, with the higher amounts mainly in higher elevations
such as the Highland Rim in Sumner and Macon Counties and the
taller hills in the Upper Cumberland. Also adjusted temperatures
for the overnight period downward based on latest obs and tweaked
pops and wx grids.



Rain is beginning to change over to snow this evening, and looks
to impact KCKV/KBNA/KMQY through around 03Z-06Z. KCSV will have
snow chances through the night, and into the morning hours.
IFR/MVFR cigs can be expected before cigs improve to VFR first at
KCKV by 08Z and KBNA/KMQY by 11Z. KCSV looks to improve from IFR
overnight to low MVFR during the day Wednesday. Winds will remain
around 10 knots gusting up to 20 knots overnight out of the
northwest, and will pick up to be around 15 knots gusting up to 25
knots during the day Wednesday. Winds will calm down Wednesday
evening, and be around 5 knots Wednesday night.


Winter Weather Advisory until 10 AM CDT Wednesday for Clay-

Freeze Warning from 1 AM to 10 AM CDT Wednesday for Bedford-
Cannon-Cheatham-Clay-Coffee-Cumberland-Davidson-De Kalb-Dickson-



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