Allardt, Tennessee Weather Forecast Discussion

194
FXUS64 KOHX 181646
AFDOHX
Area Forecast Discussion
National Weather Service Nashville TN
1146 AM CDT Thu Sep 18 2025
...New SHORT TERM, LONG TERM...
.KEY MESSAGES...
Updated at 1146 AM CDT Thu Sep 18 2025
- Above normal temperatures continue, especially daytime highs
  which will be in the 80s to lower 90s through the weekend.
- Little to no rain through the weekend, better chances for
  scattered rainfall next week with a gradual cool down.
&&
.SHORT TERM...
(Rest of today through Friday)
Issued at 1146 AM CDT Thu Sep 18 2025
An upper level ridge is overhead and that will bring quiet
conditions for today. Drier air has pushed in and our current
PWATs are under an inch and soundings show an abundant amount of
dry air above the surface. Highs will be warm pushing into the
upper 80s to mid 90s. Quiet weather remains in place into the
overnight with lows in the low to mid 60s. With the dry air mass
fog looks unlikely tonight.
The upper level ridge will start to push east on Friday as a short
wave trough lifts into the Great Lakes. This will start to push
our PWATs back up above an inch and will push a boundary into
western TN during the afternoon and evening. There will be a low
chance (10-15%) for scattered thunderstorms ahead of the
boundary mainly from I-65 west. Lapse rates will be poor and bulk
shear will be minimal but we will have inverted V soundings, this
could bring gusty winds with any of the stronger cells but the
threat is very low. Highs on Friday will once again push into the
upper 80s to mid 90s.
&&
.LONG TERM...
(Friday Night through next Thursday)
Issued at 1146 AM CDT Thu Sep 18 2025
The upper level trough will continue to lift through the Great
Lakes over the weekend. This will bring us southwest flow and
overall little to no forcing. This will keep rain chances over the
weekend to 15% or less. Highs will remain hot for this time of
year staying in the upper 80s to mid 90s.
The pattern will become more uncertain as we head into early next
week. Ensembles are struggling with timing and placement of a
trough that will dig out of the northern Plains. This will likely
bring us rain chances at some point starting Tuesday into the
later part of the week but with the uncertainty it`s hard to
pinpoint exact timing. Higher confidence in cooling as the week
goes on with highs falling back into the mid 70s to mid 80s by the
later part of the week.
&&
.AVIATION...
(12Z TAFS)
Issued at 546 AM CDT Thu Sep 18 2025
Some patchy fog lingers throughout the Plateau, but mostly away
from relevant terminals. Otherwise, VFR conditions prevail today
with light and somewhat variable winds.
&&
.PRELIMINARY POINT TEMPS/POPS...
Nashville      94  64  94  65 /   0   0  10  10
Clarksville    95  63  95  63 /   0   0  20  20
Crossville     83  58  84  59 /   0   0   0   0
Columbia       92  61  94  62 /   0   0  20  20
Cookeville     86  61  87  62 /   0   0  10   0
Jamestown      84  60  86  61 /   0   0  10   0
Lawrenceburg   90  61  92  61 /   0   0  10  10
Murfreesboro   91  61  93  62 /   0   0  10  10
Waverly        93  65  94  63 /   0   0  20  20
&&
.OHX WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
SHORT TERM...Mueller
LONG TERM....Mueller
AVIATION.....Mueller

NWS OHX Office Area Forecast Discussion