Area Forecast Discussion
Issued by NWS Shreveport, LA

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000
FXUS64 KSHV 192124
AFDSHV

Area Forecast Discussion
National Weather Service Shreveport LA
424 PM CDT Sat Aug 19 2017

.DISCUSSION...
High pressure aloft will remain over the Four State Region as the
center of the system moves into Texas and will allow daytime
temperatures to climb in to the middle to upper nineties through
the rest of the weekend and into the start of the work week. This
heat along with the relative humidity levels will result in heat
indices from near 100 to 109 degrees for Sunday with a slight
cooling into the first of the week. A heat advisory will remain in
effect through at least Sunday evening with heat indices of
105-109 degrees for much of the Four State Region except parts of
East and Northeast Texas. With a pattern change in the offering
for the first of the week, as an upper level trough of low
pressure and tropical wave moves across the Gulf the heat advisory
may not be needed for Monday. Heat indices will rise to near 105.
The upper low/wave will ride along the Southern periphery of
established high pressure ridge aloft with increased seabreeze
convection mainly along and south of Interstate 20 during the
afternoon on Monday. The upper low moves into Texas into the
middle of the week providing a weakness in the high pressure ridge
as it reforms into the Southwest and into the Western Atlantic
region off the Florida and Georgia Coast. Also a cold front will
be driving South as an upper trough of low pressure amplifies
South across the Central and Eastern sections of the country.
The combination of cloud cover, increasing rain chances and
cooler temperatures will bring an end to the excessive heat and
provide a cool and possibly wet ending to the work week and
into the weekend. Temperatures behind the cold front will dip
into the 80s and overnight lows as low as the 60s. /06/

&&

.PREV DISCUSSION... /issued 1202 PM CDT Sat Aug 19 2017/

AVIATION...
VFR conditions to prevail throughout the pd. A few tstms will be
possible this afternoon, but coverage too isold to mention in the
TAFs attm. Otherwise, expect swly winds 5-10 kts to become light
and vrbl overnight, increasing slightly out of the se after
sunrise Sunday. /12/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  77  96  76  95 /  10  20  10  30
MLU  75  95  76  94 /  20  20  10  30
DEQ  74  95  74  92 /  10  20  10  30
TXK  75  95  75  92 /  10  20  10  30
ELD  75  96  75  94 /  10  20  10  30
TYR  76  96  76  94 /  10  20  10  10
GGG  76  95  76  94 /  10  20  10  20
LFK  76  96  75  95 /  20  20  10  10

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Heat Advisory until 7 PM CDT Sunday for ARZ050-051-059>061-
     070>073.

LA...Heat Advisory until 7 PM CDT Sunday for LAZ001>006-010>014-
     017>022.

OK...Heat Advisory until 7 PM CDT Sunday for OKZ077.

TX...Heat Advisory until 7 PM CDT Sunday for TXZ097-151>153-165>167.

&&

$$

06/12


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