Area Forecast Discussion
Issued by NWS Lake Charles, LA

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FXUS64 KLCH 211647

Area Forecast Discussion
National Weather Service Lake Charles LA
1147 AM CDT Mon Aug 21 2017

.AVIATION...Generally VFR conditions are expected through the
afternoon, however spotty MVFR ceilings will occur. The cu field
has developed and a few showers and storms may affect some
terminals. Clouds will clear after sunset. Winds will be light
south to southeast.


.PREV DISCUSSION... /issued 1114 AM CDT Mon Aug 21 2017/

Few changes were required to the forecast this morning. Isolated
showers already popping up over the coastal counties and parishes,
with at least fair weather CU now prevailing across the entire
area. Latest guidance continues to indicate isolated to at best
scattered afternoon showers and thunderstorms, with temperatures
topping out in the lower/mid 90s and peak heat index values of


PREV DISCUSSION... /issued 630 AM CDT Mon Aug 21 2017/

Isolated showers moving onshore this am look to cont thru the late
mrng hours. Chcs for rains drop a bit today as precip has fallen.
But have mentioned the chcs for some aftn actvty.

PREV DISCUSSION... /issued 336 AM CDT Mon Aug 21 2017/

Lets begin by discussing the celestial elephant in the room. With
the final full forecast package before the onset of the solar
eclipse (which will begin at approximately 11:50 AM this morning)
viewing conditions are expected to be generally favorable.
Scattered cumulus clouds will partially obscure the sky, but
should not be widespread enough to cover the entire duration of
the eclipse (which will last nearly two hours from start to
finish). An isolated thunderstorm or two cannot be completely
ruled out, but a quick drive of 10 or 20 miles will likely put you
back under a viewable sky. Of course with mostly clear skies the
sun will still be doing what it does and heat indices will be in
the 100-105 range during the eclipse. Be sure to stay hydrated
while viewing.

A TUTT low will continue to gradually progress west across the
gulf of Mexico over the next couple of days which will serve to
enhance rain chances somewhat tomorrow into Wednesday before
washing out along the east Texas coast. However, rain chances
will remain above normal through the end of the week as the region
will be squeezed between a digging upper level trough across the
eastern US and the remnants (or regeneration) of Harvey in the bay
of Campeche. While the frontal system associated with the trough
is not progged to make it through the area, the higher rain
chances (and cloud cover) will result in temperatures a few
degrees cooler for the latter half of this week into early next


High pressure at the surface will keep winds generally light out
of the south or southeast through the week. Rain chances will
increase beginning Tuesday through the end of the week as a
combination of a stalled frontal system to the north and abundant
moisture from the remnants of Harvey in the bay of Campeche will
result in numerous showers and thunderstorms.


AEX  93  74  91  74 /  20  10  30  10
LCH  92  77  91  77 /  30  10  30  10
LFT  93  77  92  77 /  20  10  40  10
BPT  91  76  91  76 /  30  10  30  10




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