Area Forecast Discussion
Issued by NWS Little Rock, AR
Issued by NWS Little Rock, AR
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737 FXUS64 KLZK 201715 AFDLZK Area Forecast Discussion National Weather Service Little Rock AR 1215 PM CDT Thu Aug 20 2026 ...New AVIATION... .KEY MESSAGES... Issued at 1222 AM CDT Thu Aug 20 2026 -Some strong/severe thunderstorms possible early this morning over northern/northeast sections...and again this afternoon/evening over central/southern sections. Damaging winds will remain primary threat...with locally heavy rainfall also possible -Some relief from the very hot conditions expected today for portions of the state...but temperatures may still get near 100 over central to southern sections. Heat index values over 105 also expected this afternoon in this region...with a Heat Advisory in place as a result -Overall pattern has the upper ridge shifting west...with Arkansas in a more persistent northwesterly upper flow. This will allow for less consistent oppressive heat and some slightly better chances for rainfall going into next week && .DISCUSSION... Issued at 1222 AM CDT Thu Aug 20 2026 A front is slowly dropping south into the state early this Thu morning...with some scattered convection noted along and behind this front over WRN sections and over NERN sections of the CWA. The convective activity over NERN sections is in closer proximity to better SHR and instability...which will result in a bit better potential for seeing some strong to SVR TSRA. Further SW...this activity has less SHR and instability to work with...but is where the boundary is moving south at a faster pace. As a result...the threat for SVR convection is lower...but not out of the SVR threat. Damaging winds remains the primary threat with the strongest activity...with locally heavy rainfall also possible. The front will continue dropping south through the state through this Thu. Additional afternoon convection will be possible along/behind this front as it progresses slowly south...with best POPs along/south of I-40 this afternoon. An isolated strong to SVR TSRA could be seen with this activity...with damaging winds the primary threat. Beyond the chances for SHRA/TSRA this Thu...while the front is bringing some relief from the very hot conditions...there will still be some areas that see temps at or just over 100 this afternoon. Heat index values will also warm over 105 in many places...mainly over the SRN half of the area. Continue with a Heat Adv as a result. Beyond Thu...the upper ridge will continue sliding further west...with AR in a more persistent NRLY/NWRLY upper flow. This will make it easier for some SFC fronts to push through the region...and more opportunities for more consistent relief from the oppressive heat. This may also bring better chances for rainfall into next week...though widespread beneficial rainfall doesn`t look promising at this time. && .AVIATION... (18Z TAFS) Issued at 1214 PM CDT Thu Aug 20 2026 Mostly VFR conditions are expected through the period. With that said, SHRA/TSRA will be possible across central and southern terminals this afternoon and evening. MVFR/IFR conditions will be possible with periods of rain and thunderstorms. && .PRELIMINARY POINT TEMPS/POPS... Batesville AR 72 96 73 98 / 0 0 0 40 Camden AR 74 100 73 100 / 20 10 20 20 Harrison AR 69 93 71 93 / 0 10 0 30 Hot Springs AR 74 101 74 100 / 30 10 20 20 Little Rock AR 76 99 75 100 / 30 10 10 30 Monticello AR 76 101 74 101 / 30 0 10 10 Mount Ida AR 71 99 71 99 / 30 10 20 20 Mountain Home AR 69 92 70 93 / 0 10 10 40 Newport AR 72 95 72 96 / 0 0 0 30 Pine Bluff AR 73 98 72 99 / 30 10 10 20 Russellville AR 73 99 73 99 / 10 10 10 30 Searcy AR 72 96 72 98 / 10 0 10 30 Stuttgart AR 75 99 73 98 / 30 0 10 20 && .LZK WATCHES/WARNINGS/ADVISORIES... Heat Advisory until 8 PM CDT this evening for ARZ031>034-039- 042>047-052>057-062>069-121-122-130-137-138-140-141-230-237-238- 240-241-340-341. Heat Advisory from 11 AM to 8 PM CDT Friday for ARZ031-032-039- 042>047-052>057-062>069-121-122-130-137-138-140-141-230-237-238- 240-241-340-341. && $$ DISCUSSION...62 AVIATION...73