140 FXUS64 KMOB 301724 AFDMOB Area Forecast Discussion National Weather Service Mobile AL 1224 PM CDT Wed Jul 30 2025 ...New Aviation... .DISCUSSION... Issued at 123 AM CDT Wed Jul 30 2025 The main story continues to be the prolonged heat across the area. We'll see one more day of heat indices rising into the 105 to 110 degree range, before the temps begin to drop (though only a couple of degrees). Upper ridging will remained anchored to our south, while a ridge builds over the Western CONUS. A weak trough will move through the Great Lakes, dampening the ridge somewhat over the area. Meanwhile, surface high pressure to our south will keep a southerly flow across the region, keeping a moist airmass in place. Given the weakening ridge, thunderstorm coverage may be a bit more today than we saw yesterday, especially given the current isolated to scattered storms moving across the region. Despite the storms, temperatures are expected to climb into the mid to upper 90s once again today. While we may mix a bit this afternoon, given the fact that dewpoints are currently in the mid to upper 70s across most of the area, we should still see those heat indices reach heat advisory criteria. Regardless, low temperatures have remained in the upper 70s, providing little relief from the heat. The prolonged nature of these conditions will exacerbate any heat related illnesses. As mentioned above, we'll start to see a downward trend in temperatures as we head into the weekend. Upper ridging will remain to our south, while the aforementioned tough digs into the TN Valley. This may provide a greater coverage of thunderstorms on Thursday, as a weak frontal boundary moves into northern Alabama. The axis of the trough will move off the East Coast and generally remain in place through the weekend with northerly flow persisting over the local area. The combination of drier air and a greater coverage of storms will keep temps in the upper 80s to lower 90s by the weekend. Uncertainty is high with regard to how far south the front reaches, though guidance is fairly consistent on the boundary reaching our area and lingering during the first part of the new work week. Thus, scattered to numerous PoPs were maintained through the forecast package. /73 && .AVIATION... (18Z TAFS) Issued at 1215 PM CDT Wed Jul 30 2025 General VFR conditions with local MVFR/VFR conditions in convection along the AL Gulf coast were noted at 17z. Am expecting this convection to spread out and affect area TAF sites this afternoon. More showers and thunderstorms are expected to develop and move inland this afternoon, bringing local drops in conditions to low end MVFR levels. The convection will weaken and decrease in coverage this evening as the day's heat is lost. More showers and thunderstorms are expected to develop along the coast in the morning, bringing local drops in conditions to mid MVFR levels. /16 && .MARINE... Issued at 121 AM CDT Wed Jul 30 2025 A light to moderate west to southwesterly flow will continue through the end of the week. Seas will remain generally 2 feet or less. /73 && .MOB WATCHES/WARNINGS/ADVISORIES... AL...Heat Advisory until 6 PM CDT this evening for ALZ051>060-261>266. FL...Heat Advisory until 6 PM CDT this evening for FLZ201>206. MS...Heat Advisory until 6 PM CDT this evening for MSZ067-075-076-078- 079. GM...None. && $$ This product is also available on the web at: www.weather.gov/mob