textproduct: Shreveport

KEY MESSAGES

Issued at 1128 PM CDT Mon Aug 17 2026

- Near triple-digit high temperatures will continue throughout this week, maintaining an elevated risk for heat-related illnesses.

- Increasingly dry soils and parched vegetation resulting from flash drought will support an increased fire weather threat. - Although rain will be hard to come by, a few opportunities will exist for isolated convection over the next week as the upper ridge axis retrogrades slightly farther west.

DISCUSSION

Issued at 1135 PM CDT Mon Aug 17 2026

The upper-level ridge responsible for the ongoing dry conditions and pervasive heat will continue to maintain a hold across the ArkLaTex through the entirety of the forecast period with near triple digit afternoon high temperatures expected each day through Sunday.

On Tuesday, the center of the upper-ridge will retrograde west bringing temperatures as high as 105 degrees across mainly northeast Texas and portions of southeast Oklahoma with the remainder of the ArkLaTex up to 5 degrees cooler. Based on recent trends in both observations and forecast models with regard to afternoon relative humidity values, no strong indicators exist to suggest the need to upgrade the ongoing Heat Advisory to an Extreme Heat Warning, despite temperatures forecast to be slightly warmer across portions of the ArkLaTex.

The combination of the ridge shifting west and a weak frontal boundary lingering across parts of Arkansas into Mississippi will allow for the possibility for isolated showers and thunderstorms emerging across south Arkansas and north Louisiana on Tuesday afternoon at the time of peak heating.

From Wednesday onward, the pattern remains fairly unchanged. Any improvements in temperatures will be nuanced only a couple of degrees cooler as the center of the high retreats westward into the four corners region.

By the end of the work week into the weekend, northwest flow to prevail areawide atop the remnants of a weak frontal boundary across the region. Models have not yet come into agreement with introducing substantial precip into the forecast, but the GFS seems look promising on Friday night into Saturday morning. /05/

AVIATION

(00Z TAFS) Issued at 613 PM CDT Mon Aug 17 2026

For the 18/00z TAF update...VFR conditions will continue to prevail throughout this TAF period with some SCT to FEW clouds expected at times. We have been seeing some returns on radar this evening across portions of southeast Oklahoma and southwest Arkansas. Not too confident they will make it anywhere near our terminals, but will continue to keep an eye on it. Otherwise, winds will shift throughout the period from the southwest to the south, but overall should remain under 10kts throughout. /33/

SPOTTER INFORMATION STATEMENT

Issued at 128 PM CDT Mon Aug 17 2026

Spotter activation is not expected at this time, but spotters are encouraged to report any wildfire activity to your local officials and fire department personnel.

/059/

PRELIMINARY POINT TEMPS/POPS

SHV 81 103 81 102 / 0 0 10 0 MLU 80 103 79 101 / 0 10 10 10 DEQ 73 104 75 104 / 20 10 0 0 TXK 78 103 79 102 / 10 0 10 0 ELD 77 102 78 101 / 10 10 10 0 TYR 79 103 80 102 / 0 0 0 0 GGG 79 105 79 103 / 0 0 10 0 LFK 75 101 77 100 / 0 0 0 0

SHV WATCHES/WARNINGS/ADVISORIES

AR...Heat Advisory until 8 PM CDT Wednesday for ARZ050-051-059>061- 070>073.

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

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

TX...Heat Advisory until 8 PM CDT Wednesday for TXZ096-097-108>112- 124>126-136>138-149>153-165>167.