390
FXUS64 KSHV 212337
AFDSHV

Area Forecast Discussion
National Weather Service Shreveport LA
637 PM CDT Mon Jul 21 2025

...New AVIATION...

.KEY MESSAGES...
Issued at 157 PM CDT Mon Jul 21 2025

 - A Heat Advisory will remain in effect for most of the Four
   State Region through 8 PM tomorrow.

 - Dry conditions will continue through the middle of the week,
   allowing for the hottest temperatures of the year so far.

 - Rain chances will return across portions of the Four State
   Region by the end of this week into the upcoming weekend.

&&

.DISCUSSION...
Issued at 157 PM CDT Mon Jul 21 2025

Ridging aloft continues to be the main driver for dangerous heat
(and surrounding weather) across the Four State Region through the
middle of the week. This ridge will evolve to present a more
meridional axis shape as it builds westward into Texas on
Wednesday before shifting northward by the end of the week. As it
does so, subsidence will relent just enough to open the door for
some diurnally driven convection to percolate across southeastern
zones. Long range guidance suggests continuing relief returning
into next week as ridging remains less intense over the region.

Heat hazard products are almost fully certain to be issued through
most of this week with dangerous, prolonged heat contributing to
cumulative heat stress. Adequate precautions and awareness are
encouraged now against the elevated potential for heat illnesses.
This includes (and is not limited to) altering outdoor plans,
taking frequent breaks if you must be outside, checking the
backseat of your vehicle, and knowing the signs and symptoms of
heat exhaustion and heat stroke. /16/

&&

.AVIATION...
(00Z TAFS)
Issued at 623 PM CDT Mon Jul 21 2025

High pressure across the northern gulf will maintain southerly
flow across the ArkLaTex through the terminal forecast period
ending 23/00Z. Southerly winds around 5 knots tonight to become 5
to 10 knots on Tuesday. Otherwise VFR conditions to prevail across
most sites through the period with the exception of possible MVFR
cigs near LFK around daybreak. /05/

&&

.SPOTTER INFORMATION STATEMENT...
Issued at 1158 PM CDT Sun Jul 20 2025

Spotter activation is not expected over the next 24 hours. /20/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  78  98  78  99 /   0   0   0   0
MLU  77 100  77 101 /   0   0   0   0
DEQ  72  97  71  97 /   0   0   0   0
TXK  77 101  76 102 /   0   0   0   0
ELD  75  99  74 100 /   0   0   0   0
TYR  75  96  74  97 /   0   0   0   0
GGG  75  97  74  98 /   0   0   0   0
LFK  75  97  73  97 /   0   0   0   0

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Heat Advisory until 8 PM CDT Tuesday for ARZ050-051-059>061-
     070>073.

LA...Heat Advisory until 8 PM CDT Tuesday for LAZ001>006-010>014-
     017>022.

OK...Heat Advisory until 8 PM CDT Tuesday for OKZ077.

TX...Heat Advisory until 8 PM CDT Tuesday for TXZ097-112-126-137-138-
     150>153-165>167.

&&

$$

DISCUSSION...16
AVIATION...05