515
FXUS64 KLCH 170447
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
1147 PM CDT Sun Aug 16 2026

...New DISCUSSION, AVIATION, MARINE, FIRE WEATHER...

.KEY MESSAGES...

- A Heat Advisory is in effect from 11 AM to 8PM. Highs in the
  mid 90s to 100F and humidity will result in heat indices in the
  105 to 111F range.

- An upper level ridge will remain in place across the northern
  gulf coast through the middle of next week keeping afternoon
  highs above normal.

- No appreciable precipitation chances exist through the next seven
  days.

&&

.DISCUSSION...
(Tonight through next Sunday)
Issued at 1146 PM CDT Sun Aug 16 2026

Another hot and humid day is anticipated with a heat advisory in
effect area wide from 11AM through 8PM.

High pressure at the surface and aloft continues to linger over
the deep south and northern gulf coast. Above normal temperatures
are being felt from Texas to Florida and northward to Missouri
and North Carolina. These features will remain in place through
Wednesday with high temperatures climbing into the mid 90s to
around 100 each afternoon. Mixing will allow dewpoints to drop
during the afternoon, however spotty locations will still hit a
heat index of 108 to 110F. A few isolated showers or storms may be
possible along the sea breeze in Acadiana this afternoon... which
will quickly boost those dewpoints afterwards.

During the second half of the week an upper trough will dig into
the eastern CONUS eroding the ridge. This will allow temps to
fall back to low to mid 90s, which isn`t a big cool off, but it is
August, so we will take what we can get. Isolated to perhaps
scattered afternoon storms may also return to most of the area by
the weekend.

&&

.AVIATION...
(06Z TAFS)
Issued at 1146 PM CDT Sun Aug 16 2026

VFR with light south to southwest winds through the period.

&&

.MARINE...
Issued at 1146 PM CDT Sun Aug 16 2026

Light onshore winds with low seas are anticipated through the
period.

&&

.FIRE WEATHER...
Issued at 1146 PM CDT Sun Aug 16 2026

Hot and dry conditions are expected through mid week. KBDIs will
continue to increase.

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...Heat Advisory from 11 AM to 8 PM CDT Monday for LAZ027>033-044-
     045-055-073-074-141>143-152>154-241>243-252>254.

TX...Heat Advisory from 11 AM to 8 PM CDT Monday for TXZ180-201-
     259>262-515-516-615-616.

GM...None.
&&

$$

PUBLIC/FIRE/MARINE...05
AVIATION...05