Brentwood, Tennessee 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

658
FXUS64 KOHX 131141
AFDOHX

Area Forecast Discussion
National Weather Service Nashville TN
641 AM CDT Wed Aug 13 2025

...New UPDATE, AVIATION...

.KEY MESSAGES...
Updated at 632 AM CDT Wed Aug 13 2025

- Medium to high rain chances (50 to 80%) today. No severe
  weather is expected, but heavy rain could lead to localized
  flooding.

- Heat returns Friday into this weekend, with high temperatures in
  the mid to upper 90s. Heat indices will get into the low triple
  digits west of the Cumberland Plateau, but are expected to stay
  below advisory criteria.

&&

.UPDATE...
Issued at 632 AM CDT Wed Aug 13 2025

Early morning storms produced 2 to 3 inches for parts of Metro and
4 to 5 inches in the Lewis County area. Any additional rainfall
today could cause rapid flooding in these areas. Other locations
are subject to flash flooding as well with the atmosphere primed
for locally heavy downpours. A Flood Watch has been posted for
most of the area until 00Z. We do not expect widespread flooding-
just localized, but with potentially significant impacts where it
occurs.

&&

.SHORT TERM...
(through Wednesday Night)
Issued at 1026 PM CDT Tue Aug 12 2025

As far as that potential dent in teh drought areas, it still
looks like Wednesday will provide our best shower and
thunderstorm coverage of the week as a weak upper level shortwave
pushes into the region. This will provide a scant amount of lift
for us in Middle TN and open the door for convection to begin in
the early afternoon hours. Forecast soundings remain very
unimpressive. Lapse rates are garbage (less than 6 deg/km) and
shear is almost non-existant. This spells a very, very low
potential for any severe wind gusts. However, PWs remain quite
high. Our 00Z sounding shows 2.06 inches and this should be the
case again tomorrow. While I don`t see any signal for focused
flooding, we can`t rule out any localized flooding with expected
rain rates. Remember: turn around, don`t drown. With the
additional coverage of storms tomorrow, temperatures and heat
index values should be similar to what we saw today. This won`t be
the case moving forward, though.

&&

.LONG TERM...
(Thursday through next Wednesday)
Issued at 1026 PM CDT Tue Aug 12 2025

As we get into Thursday and Friday, and especially this weekend,
storm chances fall off quite a bit as high pressure starts to
dominate the forecast again. Afternoon highs will climb into the mid-
90s west of the Plateau by Friday and there`s at least a medium
chance they stick around into the start of next week. Heat Index
values will be in the low triple digits Friday and we`ll be close to
Heat Advisory criteria (105+) through the weekend. Rain chances
aren`t zero, but storm coverage should be fairly isolated and severe
chances remain low. So while storms won`t be a big weekend concern,
if you have outdoor plans, be sure to plan ahead to keep yourself
and loved ones cool.

&&

.AVIATION...
(12Z TAFS)
Issued at 632 AM CDT Wed Aug 13 2025

Numerous showers and scattered thunderstorms are impacting
terminals early this morning, but ultimately most of the morning
will turn out VFR for the big sites, BNA and MQY. This afternoon,
there will be scattered showers and storms area-wide with heavy
rainfall. Outside the storms, VFR will be observed with generally
light SSW winds.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      92  73  93  72 /  60  30  30  10
Clarksville    91  72  91  70 /  50  30  40   0
Crossville     82  68  84  66 /  90  30  40   0
Columbia       91  71  91  70 /  70  30  30  10
Cookeville     85  70  87  69 /  90  30  30   0
Jamestown      84  67  86  67 /  90  40  30   0
Lawrenceburg   89  70  90  69 /  70  30  30  10
Murfreesboro   91  71  92  71 /  70  30  40  10
Waverly        92  70  91  69 /  50  30  30  10

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
Flood Watch through this evening for TNZ007>011-025>034-056>066-
075-077>080-093>095.

&&

$$

UPDATE.......13
SHORT TERM...Unger
LONG TERM....Unger
AVIATION.....13