Area Forecast Discussion
Issued by NWS Shreveport, LA
Issued by NWS Shreveport, LA
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265 FXUS64 KSHV 242330 AFDSHV Area Forecast Discussion National Weather Service Shreveport LA 630 PM CDT Fri Jul 24 2026 ...New AVIATION... .KEY MESSAGES... Issued at 116 PM CDT Fri Jul 24 2026 - Hot and humid conditions will continue this weekend with some isolated to scattered showers and thunderstorms possible mainly across Southwest Arkansas late tonight/Saturday with the approach of a weak upper level disturbance. - Dangerous heat will begin to build back over the region Sunday through much of next week, with the likelihood of heat products needed as afternoon temperatures near or exceed the century mark, and heat indices exceed 105 degrees. && .DISCUSSION... Issued at 116 PM CDT Fri Jul 24 2026 The midday sfc analysis indicates that what`s left of our "dry" air that backdoored SW into the region Wednesday night/Thursday morning has retreated N into Ern OK/Wrn and Cntrl AR, with a broad and very moist sector continuing to expand N into SE OK/SW AR in wake of this retreating bndry. PW`s remain quite high across the area in wake of the remnants of Bertha which have migrated W across the Rio Grande Valley/Big Bend Region of SW TX, with strong insolation atop the very moist air mass contributing to the development of isolated convection ongoing across various portions of the region attm. Have re-added slight chance pops areawide this afternoon to account for this, with the increasing cu cigs either slowing or capping the temp rise to the mid 90s. Watching the weak shortwave trough traversing SE across NE KS into Nrn MO early this afternoon, which continues to focus scattered convection from Cntrl OK NE into Ern KS/Cntrl and Srn MO, with this weakness progged to slide SSE around the expanding upper level ridge centered over the Four Corners Region E into the Cntrl Plains. Should start to see more impacts with the elevated cigs ahead of this weakness this evening/overnight, with the vast majority of the 12Z progs and hi-res ensembles focusing more in the way of convection late tonight especially across SW and Cntrl AR than earlier model runs. The NBM remains dry largely due to continuity with earlier/older runs, and thus, have had to add slight chance pops this evening/overnight for this area and increasing pops to chance Saturday morning, all the while bleeding pops S into portions of N LA to account for a potential increase/SSE track of convection along this weak trough axis. Given that PW`s will remain between 2.1-2.25 inches across SW AR this evening/overnight, should not take much for even isolated convection to develop. Should also contend with thickening elevated cigs especially should the convection develop/deepen as what the models suggest, which may help taper back the max temp forecast Saturday afternoon. Did lower temps slightly across portions of SW AR, but the NBM temps look mostly ok as the elevated cigs may thin with time through the afternoon resulting in some increased insolation by that time, with the hottest temps expected farther W over ECntrl and N TX. Attm, there still remains enough uncertainty with the extent of the elevated cigs which may help to taper back max temps even over much of E TX. Even after bumping up NBM dewpoints slightly which have typically run a bit too low this summer, heat indices look to be Marginal for the need of a Heat Advisory, and after coordination with WFO FWD, have held off on the advisory attm for portions of E TX and will allow the evening shift to re- evaluate should the progs revert to a drier solution with this weakness entering the region. Confidence does increase Sunday into the remainder of the extended period as the upper ridge begins to expand SE into the Mid and Lower MS Valley, with increased subsidence atop the drying topsoils across the region. Max temps Sunday should climb into the upper 90s, and even near the century mark in some areas, before more extensive triple digit readings expand elsewhere across the area this next week, thus necessitating the need for heat products to address the developing dangerous heat. Dry conditions should persist through at least midweek, although there is some hint amongst the ensembles that the ridge may begin to weaken/back off slightly by late week, allowing for weaknesses in the Nrly flow to seep S and focus at least isolated afternoon/evening convection over portions of Srn AR/Nrn and Ern LA. 15 && .AVIATION... (00Z TAFS) Issued at 626 PM CDT Fri Jul 24 2026 For the 25/00z TAF update...Radar imagery is still showing a few light showers across portions of the area. I don`t think that any of terminals will see a direct impact, although a shower or two may come close to KMLU so I have maintained mention of VCSH. Otherwise, widespread VFR conditions prevail for all terminals with some MVFR ceilings expected once again tonight and towards tomorrow morning before we return to BKN250. I do have some mention of VCSH for KMLU, KTXK, KTYR, and KGGG around 25/15z with -RA and SHRA for KELD as some showers could move through during the overnight hours. /33/ && .SPOTTER INFORMATION STATEMENT... Issued at 116 PM CDT Fri Jul 24 2026 Spotter activation is not expected through tonight. /15/ && .PRELIMINARY POINT TEMPS/POPS... SHV 78 96 78 97 / 20 10 0 0 MLU 77 95 77 98 / 10 20 0 0 DEQ 76 95 75 98 / 20 20 0 0 TXK 78 98 77 100 / 20 20 0 0 ELD 76 94 75 98 / 20 30 0 0 TYR 78 98 77 99 / 20 0 0 0 GGG 78 96 77 98 / 20 10 0 0 LFK 75 96 75 97 / 10 0 0 0 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...None. LA...None. OK...None. TX...None. && $$ DISCUSSION...15 AVIATION...33