845 
FXUS64 KMRX 210539
AFDMRX

Area Forecast Discussion
National Weather Service Morristown TN
139 AM EDT Wed Oct 21 2026

...New DISCUSSION, AVIATION...

.KEY MESSAGES...
Updated at 137 AM EDT Wed Oct 21 2026

- Dry weather dominates the forecast period, with cool mornings
  and pleasant afternoons each day. Afternoon relative humidity
  will remain on the lower side as well.

&&

.DISCUSSION...
Issued at 137 AM EDT Wed Oct 21 2026

Morning fog along rivers and lakes will be possible again during the 
late night into early morning hours today, as cool air settles over 
the warm waters.

A large upper ridge to our west will gradually shift eastward during 
the period and surface high pressure to our north and northeast will 
extend into our area, keeping our weather dry through next Tuesday. 
We will see cool nights and pleasant afternoons with high 
temperatures each day not far either side of seasonal normals. We 
will also see low relative humidity values during the afternoon 
hours.

&&

.AVIATION...
(06Z TAFS)
Issued at 137 AM EDT Wed Oct 21 2026

VFR TAFs, a very low chance for river fog again this morning, but
kept it out of the TAFs. Clear to mostly clear skies with light
winds.

&&

.PRELIMINARY POINT TEMPS/POPS...
Chattanooga Airport, TN             74  49  74  49 /   0   0   0   0 
Knoxville McGhee Tyson Airport, TN  74  46  73  46 /   0   0   0   0 
Oak Ridge, TN                       74  47  73  46 /   0   0   0   0 
Tri Cities Airport, TN              71  42  70  41 /   0   0   0   0 

&&

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

$$

DISCUSSION...99
AVIATION...Wellington


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