335
FXUS64 KSHV 090046
AFDSHV

Area Forecast Discussion
National Weather Service Shreveport LA
746 PM CDT Tue Sep 8 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 141 PM CDT Tue Sep 8 2026

 - Hazardous heat will persist for much of the area for the next
   week.

 - Isolated to scattered diurnally-driven showers and
   thunderstorms are expected each afternoon.

 - More widespread coverage of showers and thunderstorms Thursday
   and Friday, especially in the far north and the far south,
   which may help bring a few degrees of relief.

&&

.DISCUSSION...
Issued at 141 PM CDT Tue Sep 8 2026

A rather broad upper-level ridge extending from the Desert
Southwest to the Carolinas remains firmly centered over the
Southern Plains. Weak mid-level disturbances rotating around the
southern periphery of the ridge should once again help initiate
isolated to scattered diurnally-driven convection this afternoon.
A weak stationary front draped from north to south across the area
may help to provide some focus for convective development. Given
the high amount of instability, any strong, more organized storms
could produce an isolated damaging wind threat before the storms
gradually diminish this evening.

On Wednesday, the boundary should lift northeast out of the
forecast area as a warm front. Some drier air should also move
into the region, but combined with subsidence from the ridge, this
will likely keep rain chances below mentionable levels. On the
flip side, the lower dewpoints should result in lower heat index
values for most locations. It won`t be enough to keep us under
Heat Advisory criteria in most places, but at least it`s some
relief.

After Wednesday, the upper-level ridge is expected to weaken. This
will allow an upper trough axis to push a cold front southeast
into the Central and Southern Plains by Thursday. Unfortunately,
any appreciably cooler air will remain far to our northwest.
However, the front should bring increased chances for showers and
thunderstorms for portions of Southeast Oklahoma, Southwest
Arkansas, and extreme Northeast Texas on Thursday. PoPs for Friday
and beyond will be more uncertain. A shortwave trough is expected
to move across Oklahoma and Arkansas. There may be a surface
trough along the Gulf coast, which could help to focus convective
development better in Deep East Texas and into Central Louisiana.
At first glance, the GFS and ECMWF appear to be very aggressive
with precip Friday and into Saturday, but Day 1-7 QPF amounts from
the NBM remain quite low. Therefore, there is medium to high
confidence showers and thunderstorms will develop, but they will
likely remain relatively spotty in coverage, and significant
wetting rains are not expected.

The increased cloud cover and rain chances should provide at least
some additional relief from the heat. Daytime high temperatures
from Wednesday through next Monday should remain below triple
digits, but still well into the mid to possibly upper 90s.
Combined with the humidity, peak heat index values will likely
still be near or above Heat Advisory criteria.

/Nuttall/

&&

.AVIATION...
(00Z TAFS)
Issued at 743 PM CDT Tue Sep 8 2026

Convection is dissipating quickly this evening and all we are left
with is high AC and Cirrus debris cloud cover which should
continue thinning as we go through the overnight hours. Otherwise,
look for a cu field to develop by mid to late morning on Wednesday
with this cu continuing to grow through the end of the TAF period.
Not seeing much in the way of storm coverage for Wednesday so
will forgo any mention of VCTS during the afternoon hours on
Wednesday. Thus VFR conditions should prevail through the next 24
hours.

13

&&

.SPOTTER INFORMATION STATEMENT...
Issued at 141 PM CDT Tue Sep 8 2026

Spotter activation is not expected at this time.

/09/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  76  97  76  96 /   0   0   0  10
MLU  75  97  75  97 /   0   0   0  10
DEQ  72  99  71  97 /   0  10   0  20
TXK  75  98  75  97 /   0  10   0  10
ELD  73  98  73  98 /   0  10   0  10
TYR  75  98  75  97 /   0   0   0  10
GGG  74  99  74  98 /   0  10   0  10
LFK  74  93  73  91 /  10  10   0  20

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Heat Advisory from 10 AM to 7 PM CDT Wednesday for ARZ050-051-
     059>061-070>073.

LA...Heat Advisory from 10 AM to 7 PM CDT Wednesday for LAZ001>006-
     010>014-017>022.

OK...Heat Advisory from 10 AM to 7 PM CDT Wednesday for OKZ077.

TX...Heat Advisory from 10 AM to 7 PM CDT Wednesday for TXZ096-097-
     108>112-124>126-136>138-149>153-165>167.

&&


$$

DISCUSSION...09
AVIATION...13