Area Forecast Discussion
Issued by NWS Lake Charles, LA

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FXUS64 KLCH 182339
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
639 PM CDT Fri Aug 18 2017

.DISCUSSION...
19/00Z TAF Issuance.

&&

.AVIATION...
Just a few small SHRA/TSRA seen on radar late this aftn, well away
from TAF locations. This activity should dissipate within the next
hour or two with mostly clear skies/VFR to persist overnight. Some
brief patchy fog or low clouds will be possible early Saturday
morning but expect conditions to be fairly transient at this time.
Otherwise, conditions Saturday will be similar to the past few
days with VFR prevailing amid a daytime CU field based around
3500-5000 FT. Some isolated to widely sctd aftn SH or TS will be
possible, with west to southwest winds less than 10 KT.

24

&&

.PREV DISCUSSION... /issued 329 PM CDT Fri Aug 18 2017/

DISCUSSION...Limited showers shown on radar early this afternoon
along a weak seabreeze just inland of the coast, and
additionally a few over central Louisiana. Surface observations
showing temperatures generally in a 90-95 range with dewpoints in
the mid 70s. Apparent temperatures not running quite as high as
yesterday and holding just under local heat advisory criteria.
Latest guidance suggesting similar numbers for Saturday and thus
will not introduce an advisory for the beginning of the weekend.

Limited changes to forecast. Will see a continuation of a typical
late August weather pattern. Hot and humid days can be expected
followed by warm and muggy nights. High pressure aloft currently
over the region and suppressing any significant convection today
will weaken moving through the weekend. This as an easterly wave
now over Florida advances over the southeast CONUS and adjacent
gulf waters. A gradual uptick in pops then expected going into
the new work-week.

MARINE...Surface high pressure over the northwest gulf will
maintain a light and somewhat variable flow through the weekend.
Winds will trend east to southeast and remain light moving into
the new work-week as high pressure becomes oriented across the
southeast CONUS and adjacent coastal waters.

23

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  75  93  72  93 /  10  30  10  40
LCH  79  93  74  93 /  10  20  10  30
LFT  77  92  73  92 /  10  30  10  40
BPT  78  93  74  92 /  10  10  10  20

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...Heat Advisory until 7 PM CDT this evening for LAZ030-031-041>044-
     052>054-073-074.

TX...Heat Advisory until 7 PM CDT this evening for TXZ180-201-215-216-
     261-262.

GM...None.
&&

$$


AVIATION...24


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