696
FXUS64 KSHV 121144
AFDSHV

Area Forecast Discussion
National Weather Service Shreveport LA
644 AM CDT Sat Sep 12 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 1238 AM CDT Sat Sep 12 2026

 - Brief respite from heat headlines has ended as the upper ridge
   will gradually expand back across the region throughout this
   weekend, prompting an areawide heat advisory today.

 - Remnant sfc trough will linger over the region today along the
   eastern periphery of the ridge axis, serving as a trigger for
   isolated convection through this afternoon.

 - Intense heat will persist throughout much of next week before a
   possible pattern shift late next weekend, finally signaling the
   heat relief just time for the arrival of fall.

&&

.DISCUSSION...
Issued at 1238 AM CDT Sat Sep 12 2026

The overarching weather theme through this weekend and especially
next week is the building heat and humidity, prompting the return
of heat advisory headlines today and likely for several more days.
Although not very promising, we will at least maintain a low-end
chance of showers and thunderstorms across much of the region for
today. This will occur as a remnant surface trough interacts with
abundant LL moisture as noted by the lower to mid 70s dew points.

Additional support for convection may come from upstream forcing
as a disturbance rounds the top of the ridge axis over the Great
Plains, yielding a low-end risk for a few strong to severe storms
across our northernmost zones by later this afternoon through the
evening hours as highlighted in the SPC Day 1 convective outlook.
Elsewhere, convection will generally be much more isolated with
brief pop-up variety showers and possibly a stray thunderstorm
throughout peak heating hours before dissipating around sunset.

As we move in Sunday and much of next week, rain chances will be
slim to none as the center of the ridge axis slowly migrates east
across our region. The resulting increase in subsidence will push
daily high temperatures back into the upper 90s for most areas and
even some isolated lower triple-digits will certainly be possible.
It probably goes without saying that additional heat advisories
are likely to continue through at least the middle of next week.

Medium-range guidance does continue to provide some hope for a
pattern change, although there remains plenty of ambiguity on
just how this evolves by late next week into next weekend. For
now, NBM guidance is trending slightly lower with temperatures by
the end of next week while keeping rain chances very low to near
nil. Perhaps, the much anticipated start of the fall season will
bear fruit with some welcome changes just beyond this forecast
period.

/19/

&&

.AVIATION...
(12Z TAFS)
Issued at 639 AM CDT Sat Sep 12 2026

For the 12/12z TAF update...Surface observations are showing some
lower clouds at a few locations, one of which is KLFK where MVFR
CIGs have developed. This trend shouldn`t last too long with SCT
around 5k feet or higher returning by 12/16z. Left mention of VCTS
and VCSH for all terminals but KTYR and KLFK for this afternoon as
scattered showers and thunderstorms are expected to develop. Still
not enough confidence that any terminal will see a storm move
overhead, however, winds could still become gusty and erratic at
times with any storms that do develop near any terminals this
afternoon. Aside from that, winds should be generally light and
remain under 10 kts throughout the day. /33/

&&

.SPOTTER INFORMATION STATEMENT...
Issued at 1238 AM CDT Sat Sep 12 2026

Spotter activation is not expected, but a few strong to severe
storms cannot be ruled out across parts of Southeast Oklahoma and
Southwest Arkansas later this afternoon into the evening hours.

/19/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  98  76  98  76 /  20  10  10   0
MLU  98  75  98  75 /  20   0  20   0
DEQ  97  70  99  71 /  20   0   0   0
TXK  98  75  98  75 /  30   0  10   0
ELD  98  73  99  73 /  40  10  10   0
TYR  99  76  98  75 /  10   0   0   0
GGG 100  75  99  74 /  20   0   0   0
LFK  96  74  95  74 /  20   0   0   0

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Heat Advisory from noon today to 7 PM CDT this evening for
     ARZ050-051-059>061-070>073.

LA...Heat Advisory from noon today to 7 PM CDT this evening for
     LAZ001>006-010>014-017>022.

OK...Heat Advisory from noon today to 7 PM CDT this evening for
     OKZ077.

TX...Heat Advisory from noon today to 7 PM CDT this evening for
     TXZ096-097-108>112-124>126-136>138-149>153-165>167.

&&


$$

DISCUSSION...19
AVIATION...33