750 
FXUS64 KMRX 270639
AFDMRX

Area Forecast Discussion
National Weather Service Morristown TN
239 AM EDT Tue Oct 27 2026

...New DISCUSSION, AVIATION...

.KEY MESSAGES...
Updated at 231 AM EDT Tue Oct 27 2026

- Dry weather will continue over the forecast period with cool 
  mornings and mild afternoon highs. 

- Low relative humidity values in the 30s to upper 20s are also
  expected most days but with light winds overall.  

&&

.DISCUSSION...
Issued at 231 AM EDT Tue Oct 27 2026

Currently, upper ridging is in place aloft with broad surface high 
pressure across the eastern U.S. This will continue the same pattern 
we've had with mild daytime highs after a cool morning today. With 
slightly warmer temperatures, RH values are likely to drop further 
into the 30s and upper 20s during the afternoon. The pattern will 
remain similar on Wednesday with ridging and high pressure shifting 
further to the east. By Thursday, ridging will be flattened with a 
more zonal pattern aloft and surface high pressure remaining in 
place. 

By Friday, a shortwave will eject out of the Rockies with downstream 
ridging increasing in our region again. With continued high 
pressure, similarly dry and mild conditions are expected during the 
day after a cool morning. For Halloween, the shortwave will approach 
from the west with surface high pressure strengthening to our east. 
This will lead to rain chances approaching from the west, but most 
of the area still looks dry for the night. Depending on evolution 
and the MSLP gradient, breezy conditions are possible in the 
mountains. Otherwise, the best chances for rain will be towards 
Sunday, but overall rain totals will be light.

&&

.AVIATION...
(06Z TAFS)
Issued at 231 AM EDT Tue Oct 27 2026

High clouds are currently moving in from the west. Surface high
pressure and upper level ridging will continue to dominate the
pattern through the next 24 hours. Thus, light winds or calm 
conditions and dry weather can be expected. A brief period of fog
is possible at both TRI and CHA later this morning before sunrise.

&&

.PRELIMINARY POINT TEMPS/POPS...
Chattanooga Airport, TN             76  50  74  48 /   0   0   0   0 
Knoxville McGhee Tyson Airport, TN  76  49  74  45 /   0   0   0   0 
Oak Ridge, TN                       75  49  73  45 /   0   0   0   0 
Tri Cities Airport, TN              75  44  72  43 /   0   0   0   0 

&&

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

$$

DISCUSSION...BW
AVIATION...KS


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