Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN

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FXUS64 KMRX 180235
AFDMRX

Area Forecast Discussion
National Weather Service Morristown TN
935 PM EST Sun Feb 17 2019

.DISCUSSION...

Widespread precipitation across the southern Appalachians this
evening. Rainfall amounts over the last 6 hours or so have ranged
from around 0.5-1.0 inches with the higher amounts across
southeast Tennessee and southwest North Carolina. The 500 mb
shortwave trough is currently located across the Tennessee River
Valley moving to the northeast. The surface cold front is now
moving off the Cumberland Plateau into the Valley. Widespread
precipitation will continue across the southern Appalchians
throughout the evening into the overnight hours. Latest radar
imagery indicates some enhancement across the northern Cumberland
Plateau and into southwest Virginia. These areas did receive the
higher rainfall totals earlier this morning and this will be an
area to watch for some localized flooding this evening and into
the overnight hours. Colder and drier air will advect in behind
the system later tonight leading to a rather abrupt cut off to the
precipitation around 08-10z for most locations. Temperatures will
drop off rather quickly late tonight with lows in the mid and
upper 30s.


&&

.PRELIMINARY POINT TEMPS/POPS...
Chattanooga Airport, TN             39  53  34  43 /  90   0   0  80
Knoxville McGhee Tyson Airport, TN  39  49  28  44 / 100  10   0  80
Oak Ridge, TN                       37  50  30  44 / 100  10   0  80
Tri Cities Airport, TN              37  49  26  46 /  90  10   0  50

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...None.
TN...None.
VA...None.
&&

$$

MA


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