textproduct: Shreveport

KEY MESSAGES

Issued at 106 PM CDT Wed Aug 12 2026

- Robust ridging aloft will maintain a prolonged heat wave that shows no signs of relenting anytime soon.

- Rain chances will remain virtually non-existent under this very stagnant pattern.

- Flash drought conditions will begin to quickly manifest in this increasingly hot and dry blocking high regime.

DISCUSSION

Issued at 106 PM CDT Wed Aug 12 2026

Dreadful is about the only word that comes to mind to describe this forecast. A classic blocking high will effectively remain anchored across our region for the foreseeable future, thereby intensifying the ongoing heat wave across much of the central and southern US. As high pressure aloft results in sinking air or subsidence, the downward motion compresses and warms the air closer to the surface and effectively traps the heat in place. This pattern is certainly not unusual for this time of year, which is typically our hottest part of the summer on average. However, the more prolonged nature of this heat wave combined with a lack of rainfall will present a growing concern for flash drought conditions and the corresponding fire danger.

Given the expected duration of this stagnant pattern lasting into next week, the Heat Advisory has already been extended through Sunday with further extensions likely as lower triple-digit high temperatures become even more common this weekend. If there is any consolation, it appears the rapid drying out of soils will keep dew points in check along with some mixing out through the daytime hours such that the humidity levels won't be quite as oppressive. However, with the lower humidity comes the threat of fire danger so it's a trade-off in that respect. For this reason, it's likely Fire Danger Statements will become necessary at some point this week as rapid drying out continues to lead to the onset of flash drought conditions.

/19/

AVIATION

(18Z TAFS) Issued at 106 PM CDT Wed Aug 12 2026

VFR conditions will continue through the 12/18Z TAF period. A weak cu field has developed across Lower E TX/N LA near and S of the I-20 corridor, with a few cu expected to develop farther N across the remainder of the region through the afternoon. This cu field will diminish by/shortly after sunset, with mostly SKC expected through the evening and overnight hours. Low MVFR stratocu should again develop by/shortly after 12Z Thursday across Deep E TX/NCntrl LA, which may result in brief cigs at LFK through mid-morning, before quickly lifting/scattering out. The cu field should be similar to what is expected this afternoon, mainly S of I-20 through midday with a few cu developing elsewhere in the afternoon. SSW winds 8-12kts with occasional higher gusts will become S 5-10kts after 00Z.

/15/

SPOTTER INFORMATION STATEMENT

Issued at 1206 PM CDT Wed Aug 12 2026

Spotter activation is not expected at this time.

/19/

PRELIMINARY POINT TEMPS/POPS

SHV 79 100 77 99 / 0 0 0 0 MLU 78 100 76 100 / 0 0 0 0 DEQ 75 99 75 99 / 0 0 0 0 TXK 78 100 78 100 / 0 0 0 0 ELD 77 98 76 98 / 0 0 0 0 TYR 77 99 76 98 / 0 0 0 0 GGG 76 100 74 100 / 0 0 0 0 LFK 76 98 75 97 / 0 0 0 0

SHV WATCHES/WARNINGS/ADVISORIES

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

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

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

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