textproduct: Shreveport

KEY MESSAGES

Issued at 105 AM CDT Sat Aug 22 2026

- Oppressive heat will continue through the forecast period, with triple digit temperatures common each day across much of the region through at least midweek next week. Resultant heat indices will range from 105-110 degrees each day.

- Isolated showers and thunderstorms will be possible though this afternoon over much of the region, and could linger into the overnight hours across portions of Southwest Arkansas and North Louisiana, which may provide some brief relief to the heat. Given the intense heat/instability, isolated strong to severe storms will be possible capable of producing damaging downburst winds.

- Aside from the potential for showers and thunderstorms to possibly graze the eastern sections of Southern Arkansas and Eastern Louisiana Monday morning, mostly dry conditions are expected over much of the area through at least midweek, further aggravating deteriorating drought conditions already in place.

DISCUSSION

Issued at 105 AM CDT Sat Aug 22 2026

The early morning sfc analysis indicates that the weak sfc trough that focused compressional warming, extreme heat indices at and above 110 degrees over much of Lower E TX/N LA, as well as scattered severe convection earlier Friday afternoon has being convectively reinforced S into the Nrn Gulf, with sfc winds already beginning to return from the S across SW LA and adjacent SE TX. Winds should eventually transition back out of the WSW elsewhere across the region through the mid-morning hours, eventually becoming more VRB through the day. The short term prog consensus suggest that convection Saturday afternoon should be more isolated across the area, with greater focus primarily tied to another weak sfc front that will shift S into NE OK/Nrn AR this afternoon, which will aid in enhanced forcing as another shortwave trough shifts SE into the Ozarks around the Ern periphery of the upper ridge centered over the Cntrl and Srn Rockies. Outflows from the convection to our N may help initiate isolated to widely scattered convection across SE OK/SW AR late this afternoon/evening as the remnants of this weakness aloft traverses S into the region before eventually weakening. The oppressive heat will continue to remain the primary story though as widespread triple digit temps will return, with temps similar if not hotter than what was observed Friday afternoon. Should see a little better mixing of dewpoints than what occurred Friday, with heat indices again ranging from 105-110 degrees. Thus, have maintained the Heat Advisory areawide through early this evening, although this will likely be extended again through Sunday.

Additional isolated convection redevelopment may occur overnight tonight mainly over SW AR/N LA before diminishing Sunday morning, although elevated cigs may linger through at least a portion of the day over Srn AR/N LA which may help to taper back max temps slightly. However, widespread triple digit temps are again expected areawide, with attendant heat indices again ranging from 105-110 degrees. The center of the upper ridge remains progged to expand farther E across the Srn Plains into the Lower MS Valley Sunday, resulting in a mostly dry forecast, although the models continue to focus on a shortwave perturbation that will round the ridge over the Ozarks into Nrn AR/Mid-South region Sunday night, and ride SE towards the Gulf Coast Monday morning. A portion of this convection may affect the far Ern zones of SCntrl AR/NE LA late Sunday night/Monday morning, with convective debris likely limiting daytime heating to some extent such that these areas should remain below 100 degrees.

Unfortunately, this "cooling" for these areas will be short- lived, as the ridge aloft expands E once again Tuesday, reinforcing the triple digit heat and dry conditions areawide through midweek. However, the ridge is progged to begin retrograding back W into the Desert SW Wednesday through the remainder of the work week, resulting in a return to a more NWrly flow regime over the area, which would allow for additional weaknesses in the NW flow aloft to shift SE and potentially focus isolated to scattered convection Wednesday through Friday afternoons/evenings over portions of the region. The resultant cloud cover and daily convection may also help to scale back afternoon temps a tad as well, closer to if not a touch below the century mark.

15

AVIATION

(06Z TAFS) Issued at 105 AM CDT Sat Aug 22 2026

For the 22/06Z TAF period, VCTS conditions will be possible this afternoon from 22/18Z through 23/04Z across most terminal sites in response to a lingering frontal boundary across the region. Otherwise, VFR conditions to prevail outside of any convection with light and variable winds expected through the period except for much higher gusts in and around the stronger convection. /05/

SPOTTER INFORMATION STATEMENT

Issued at 105 AM CDT Sat Aug 22 2026

Spotter activation may be needed this afternoon and evening over portions of the region for the potential of damaging downburst winds. /15/

PRELIMINARY POINT TEMPS/POPS

SHV 104 79 103 80 / 20 10 10 10 MLU 104 75 101 77 / 20 20 10 10 DEQ 103 72 101 74 / 20 20 10 0 TXK 103 75 102 77 / 20 20 10 10 ELD 104 74 100 74 / 20 20 10 10 TYR 105 80 105 81 / 20 10 10 0 GGG 106 78 105 80 / 20 10 10 0 LFK 103 77 103 77 / 20 10 10 0

SHV WATCHES/WARNINGS/ADVISORIES

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

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

OK...Heat Advisory until 8 PM CDT this evening for OKZ077.

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