FXUS64 KLCH 052037
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
337 PM CDT Thu Aug 5 2021

.DISCUSSION...
.SHORT TERM [Tonight through Saturday Night]...

As expected, drier air has mixed down to the surface this 
afternoon yielding dewpoints in the low to mid 60s across the 
area. While the abnormally dry conditions will continue through 
the night, expect dewpoints to begin creeping upward late this 
evening as the mixing abates. An upper level trof will cross the 
region tomorrow, but with significantly less moisture to work 
with, only isolated convection is expected mainly along the 
immediate coastline and offshore. 

The Bermuda high will build into the eastern gulf by Friday
afternoon which will shift winds back out of the south late in 
the day pushing gulf moisture back inland Friday night and
returning the region to a more typical summer pattern. Upper 
level ridging builds across much of the gulf through the weekend, 
but with the low level moisture back in place, it won't be strong
enough to suppress the daily diurnally driven afternoon 
convection.

Jones

.LONG TERM [Sunday through Thursday]... 

Once again no big changes in the long range part of the forecast 
this afternoon. In the wake of a departing mid/upper level trof, 
low/mid level ridging is progged to build WWD across the Gulf Coast 
over the later half of weekend into next week. A steady onshore 
influx of Gulf MSTR coupled with diurnal instability and at best 
weak upper level ridging will yield a typical summertime pattern of 
daytime TSTM chances and little day to day variation in 
temperatures, which will range from the mid to upper 70s for morning 
lows and the lower to mid 90s for afternoon highs.  

13

&&

.MARINE...
Light offshore flow behind a weak cool front beyond the coastal 
waters will continue through tonight, with scattered showers and 
thunderstorms possible in the vicinity of the stalled front. 
Onshore flow is expected to return by Friday night as high 
pressure redevelops over the northwest Gulf of Mexico and remains 
anchored there. More typical summertime showers and storms are 
then expected for the remainder of the forecast period. 

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  71  93  71  93 /   0  10   0  20 
LCH  72  91  75  90 /   0  20  10  40 
LFT  71  92  74  90 /   0  10  10  40 
BPT  71  93  74  90 /   0  30  10  40 

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...None.
TX...None.
GM...None.
&&

$$