Area Forecast Discussion
Issued by NWS Lake Charles, LA

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FXUS64 KLCH 200528
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
1128 PM CST Sun Nov 19 2017

.DISCUSSION...
20/06Z TAF Issuance.

&&

.AVIATION...
Only minor tweaks to previous TAFs as high pres over the region
will maintain VFR conditions and light winds through the period.

24

&&

.PREV DISCUSSION... /issued 920 PM CST Sun Nov 19 2017/

UPDATE...
High lvl clouds drifting acrs the region this eve as winds remain
light. Looking to see good radiational cooling w/ temps xpcd into
the 30s acrs cntrl La and 40s down along the coast twrds sr.

19

PREV DISCUSSION... /issued 539 PM CST Sun Nov 19 2017/

DISCUSSION...
20/00Z TAF Issuance.

AVIATION...
VFR to prevail through the next 24 hours with just some SCT/BKN
cirrus streaming over the region. Northerly winds will diminish
within the next hour, with light winds overnight as sfc high pres
ridges over the area. Winds will shift more easterly by Monday
morning, then become vrbl by aftn with sustained speeds 4-8 KT.

24

PREV DISCUSSION... /issued 345 PM CST Sun Nov 19 2017/

DISCUSSION...
The main story for today is the much cooler and drier air in
place as high pressure continues building into the region. The
dry, subsident air has kept us mostly clear, with only a little
upper level cirrus streaming into the area on vis satellite.
Temperatures tonight will drop into the 30s for the northeastern
zones through Acadiana for the first time since late October. The
Alexandria area will see lows hovering near freezing Monday
morning. Those of us along the I-10 corridor can expect
temperatures in the upper 30s / lower 40s, with lower 50s along
the coast.

Dry weather will persist tonight into Monday as the flow aloft
becomes more zonal and the surface high continues shifting
eastward over the area. Cooler temperatures will again be the main
story on Monday, maxing out in the mid-60s for most of the region
during the afternoon.

A shortwave is progged to develop over the Desert SW and shift
eastward over the central/northern Gulf Monday night. Models
continue to back off on available moisture, so precip chances
appear to be confined mostly to the coastal waters. The next real
rain chance for inland areas will come late Tuesday as a cold
front sweeps southeastward out of the Plains. Precip looks to be
limited to scattered showers across the area Tuesday afternoon
into the overnight.

Thanksgiving continues to look dry and chilly as high pressure
and northerly flow once again develop over the region. Morning
lows will hover around freezing in the northeastern zones, with
mid/upper 30s southwards to I-10. Coastal areas will see
temperatures in the upper 40s. Thanksgiving highs will barely make
it into the lower 60s. Otherwise, the forecast looks dry into the
weekend.

RACKLEY


MARINE...
Strong winds have dissipated across the coastal waters today,
though a few elevated gusts are still showing on surface obs. Wind
speeds will continue falling this evening into tomorrow. Lighter
easterly to southeasterly winds are forecast to develop during the
day Monday as the surface high shifts off to the east. Gusty
northerly winds will return with the next frontal passage Tuesday
night.

RACKLEY

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  33  63  39  68 /   0   0  10  20
LCH  40  65  47  71 /   0  10  10  30
LFT  39  62  46  69 /   0   0  10  20
BPT  42  65  49  72 /   0  10  10  30

&&

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

$$



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