textproduct: Shreveport

KEY MESSAGES

Issued at 242 PM CDT Sun Sep 6 2026

- Heat Advisory issuance will continue areawide through Labor Day as heat becomes more widespread.

- Daily chances of afternoon showers and thunderstorms will persist through most of this week.

- Chances are increasing for a weather pattern change that delivers cooler temperatures by next weekend.

DISCUSSION

Issued at 242 PM CDT Sun Sep 6 2026

Ridging continues to shift further southwest into the Lower Intermountain West, stretching into the southern Great Plains today. This ridge axis will continue to elongate over the next three days aloft. Until then, a slow-moving frontal boundary will continue to drift across the Mid-South to reach the Four State Region by Monday, producing some compressional heating during the afternoon. This will maximize and expand the hazardous heat threat through Labor Day, and a Heat Advisory has been issued as a result.

Quasi-zonal flow will continue underneath this ridge, which will continue to steer disturbances westward, and combined with lower geopotential heights/weaker atmospheric subsidence, convective rounds will develop inheriting a westward propagation through the next several days. The convection that does develop will still follow a diurnal pattern with the best chances of rain south of the I-20 corridor under less inhibition from ridging to the north. Variations in the intensity of the waves of vorticity advected will drive the intensity of convection each day this week. Medium- range guidance suggests a gradual cooldown by the middle of the week due to another round of vorticity arrives from a westwardly propagating wave to induce better chances of rain by the end of the week. Long-range guidance suggests a pattern change by the end of this week (temperature maximums likely cooler in the low-to- mid 90s) as the aforementioned ridge finally breaks down, bifurcated by troughing with an attendant frontal boundary that is expected to arrive later next weekend with more widespread rain chances. That said, resulting WPC QPF Day 1-7 values still reflect an overall southerly precipitation distribution with 0.01 to 0.25 inch rainfall totals likely areawide and 0.25-0.50 inch totals more likely to the south where any additional convection can form. /16/

AVIATION

(18Z TAFS) Issued at 1258 PM CDT Sun Sep 6 2026

For the 06/18z TAF period...VFR conditions currently across the region with some developing afternoon CU. Models continue to suggest some convection will develop across Arkansas and push into portions of the region by this afternoon into the early evening hours. The sites with the best chance of seeing precip will be KELD/KTXK in South Arkansas and KSHV/KMLU in North Louisiana. However, only included VCTS as chances remain slight, so will amend later if needed. Otherwise, expect passing high clouds over the region in wake of the afternoon CU. Also, there is a chance for some low clouds and patchy fog at KLFK around daybreak. /20/

SPOTTER INFORMATION STATEMENT

Issued at 1220 AM CDT Sun Sep 6 2026

Spotter activation is not expected at this time.

PRELIMINARY POINT TEMPS/POPS

SHV 77 99 76 98 / 10 20 10 10 MLU 77 101 75 99 / 10 10 10 10 DEQ 72 101 71 100 / 10 10 0 0 TXK 76 99 75 99 / 20 10 10 0 ELD 74 101 72 100 / 20 10 10 0 TYR 76 98 76 98 / 0 10 10 10 GGG 75 100 75 100 / 0 20 10 10 LFK 74 95 74 94 / 0 10 10 20

SHV WATCHES/WARNINGS/ADVISORIES

AR...Heat Advisory until 7 PM CDT this evening for ARZ050-051-059>061- 070>073.

Heat Advisory from 10 AM to 7 PM CDT Monday for ARZ050-051- 059>061-070>073.

LA...Heat Advisory until 7 PM CDT this evening for LAZ001>006-012>014- 019-021-022.

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

OK...Heat Advisory until 7 PM CDT this evening for OKZ077.

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

TX...Heat Advisory until 7 PM CDT this evening for TXZ096-097-108>112- 124>126-136>138.

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