Area Forecast Discussion
Issued by NWS Lake Charles, LA

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FXUS64 KLCH 202015
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
215 PM CST Sat Jan 20 2018

.DISCUSSION...Aloft, one short wave is pushing east across the
local area while a stronger disturbance is moving into the 4
corners region. At the surface a ridge is departing the east coast
and low pressure is developing over the plains.

The much anticipated warm-up is in full swing as the flow between
the surface ridge and plains low pulls gulf moisture north.
However with the increase in moisture and an upper lvl disturbance
passing the area a few showers have been noted since early
morning.

The weak disturbance aloft will gradually push east through the
afternoon and evening and rain chances will decrease tonight,
however surface moisture will continue to increase.

Into Sunday, temperatures are expected to increase a bit more as
the south flow continues. Low pressure in the plains will move
toward the mid Mississippi Valley ahead of the aforementioned
disturbance in the 4 corners region. As the upper disturbance and
low ejects east/northeast a cold front will move toward the local
area Sunday Night/Monday Morning. Showers and storms will occur as
the boundary passes. Instability looks a bit lacking at the
current time, however one or two strong storms may be possible,
especially well away from the coast.

The remainder of the week looks dry and mild with temperatures
near normal climo values.

&&

.MARINE...A warm moisture onshore flow will continue into early
Monday Morning. Sea fog is expected to develop tonight as the
dewpoints rise well over the shelf water temps. Sea fog will
linger until the front passes early Monday. A moderate offshore
flow will develop behind the boundary Monday into Tuesday as high
pressure builds in.

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  55  71  55  64 /  20  30  90  40
LCH  57  72  58  67 /  20  30  80  40
LFT  56  73  60  70 /  10  20  60  70
BPT  59  72  56  66 /  20  30  80  30

&&

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

$$

PUBLIC...05



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