Area Forecast Discussion
Issued by NWS Nashville, TN

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FXUS64 KOHX 220346
AFDOHX

Area Forecast Discussion
National Weather Service Nashville TN
946 PM CST Wed Feb 21 2018

.UPDATE...
FOR EVENING DISCUSSION.

&&

.DISCUSSION...

The frontal boundary is currently camped out over the eastern
portion of the CWA. A surface disturbance is riding up from the
southwest which has caused much of the area west of the Cumberland
Plateau to fill in with showers and a few rumbles of thunder. The
boundary will actually try to lift northward as the surface low
lifts through the area after 06z. This will allow temperatures to
climb for most of the area for the second half of the night. High
res models show some isolated spots in the western part of the
area receiving another 1 to 1.5 inches after midnight. Some
localized flooding is possible. As far as the forecast goes, some
adjustments had to be made to low temperatures as hourly obs had
already surpassed lows. Hourly temperatures and dew points were
adjusted to fit the current position of the surface boundary.

&&

.AVIATION...
00Z TAF DISCUSSION.

Frontal boundary will remain draped across the middle Tennessee
area through the taf period. A series of impulses will move along
the quasi stationary boundary and bring periods of rainfall with
nearly continuous IFR cigs. Vsbys will display more in the way of
variability with MVFR conditions at times for the BNA and
especially the CSV area.


&&

.OHX WATCHES/WARNINGS/ADVISORIES...
Flood Watch through late Saturday night for Cheatham-Davidson-
Dickson-Hickman-Houston-Humphreys-Lewis-Maury-Montgomery-Perry-
Robertson-Stewart-Sumner-Williamson.

&&

$$

DISCUSSION......Reagan
AVIATION........21



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