Area Forecast Discussion
Issued by NWS Mobile, AL
Issued by NWS Mobile, AL
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698 FXUS64 KMOB 301953 AFDMOB Area Forecast Discussion National Weather Service Mobile AL 253 PM CDT Sun Aug 30 2026 ...New MARINE... .KEY MESSAGES... Updated at 253 PM CDT Sun Aug 30 2026 - Waterspouts will be possible over the Gulf waters mainly during the morning hours each day. - A Moderate Risk of Rip Currents is in place for local area beaches through Monday. - Heat index values near 100 trend higher through next week, potentially reaching 108-110 in some locations by late in the week on into Saturday. && .DISCUSSION... Issued at 1155 AM CDT Sun Aug 30 2026 A low pressure system located about 125 miles south of the coast of southeast Louisiana, identified as Invest 97L, is expected to drift westward to west-northwestward over the next couple of days. The National Hurricane Center has a 30% chance of tropical development of this system within 48 hours and a 30% chance of development through 7 days. The latest guidance appears to favor taking this system into/towards the upper Texas coast or possibly extreme southwest Louisiana early next week. As this system continues westward away from the forecast area, an upper ridge mainly over the southern/central Plains steadily builds into the eastern states through Tuesday. A weak upper trof extending from over the forecast area up to the Carolinas dissipates as the upper ridge builds eastward, though a series of shortwaves are expected to move across the forecast area within the upper ridge flow pattern. Am anticipating mainly scattered convective development across much of the forecast area today with daytime heating before diminishing early this evening. Scattered convection develops near the coast late tonight, then develops further inland on Monday south of Highway 84. A similar convective cycle repeats for late Monday night into Tuesday, although coverage may be enhanced on Tuesday across extreme southeast Mississippi and extreme southwest Alabama where a bit better low level convergence may occur. The upper ridge persists across much of the eastern states Wednesday into Thursday before weakening Friday into Saturday as an upper trof swings into the interior eastern states. A modest upper trof appears to advance across the Florida peninsula on Tuesday then progress slowly into the north central Gulf Wednesday into Thursday. This feature along with abundant deep layer moisture and the sea breeze looks to support likely pops on Wednesday over the coastal counties tapering to slight chance pops well inland, then for Thursday anticipate chance to likely pops areawide. Mainly chance pops follow for Friday then anticipate slight chance to chance pops for Saturday. An important thing to monitor will be a tropical wave (the remnants of Dolly) which is expected to reach the southeastern Gulf by the middle of the week. The National Hurricane Center has a 20% chance of tropical development for this system over the next 7 days. Some ensemble guidance members indicate possible development over the eastern half of the Gulf by Friday, but at this point there are just too many unknowns to draw conclusions. Highs on Monday will be in the lower 90s, then lower to mid 90s are expected for Tuesday through Saturday. Heat index values around 100 on Monday trend to 100-105 for Tuesday and Wednesday, then trend to 100-107 for Thursday through Saturday, potentially reaching 108-110 in some locations late in the period. A moderate risk of rip currents is expected through Monday, followed by a low risk for Tuesday through Thursday. /29 && .AVIATION... (18Z TAFS) Issued at 1211 PM CDT Sun Aug 30 2026 Broad area of low pressure, southeast of the LA coast, is tracking slowly westward and is generating some rain bands which are spreading westward over the MS Sound this afternoon. Much of the convection though has been mostly offshore, but do expect some afternoon shra/tsra development along the coastal counties which will likely bring brief wind gusts and lowering cigs with their passage. Away from shra/tsra, VFR conditions and light east to southeast winds expected through the period. /10 && .MARINE... Issued at 253 PM CDT Sun Aug 30 2026 A low pressure center located about 125 miles south of southeastern Louisiana will drift west-northwestward and move into the upper Texas or southwestern Louisiana coast Tuesday or Tuesday night. This system has a 50% chance of developing into a tropical depression or tropical storm before moving inland. A light to moderate easterly to southeasterly flow will prevail over the forecast area through Friday. Waterspouts will be possible mainly during the morning hours. /29 && .PRELIMINARY POINT TEMPS/POPS... Mobile 74 90 74 91 / 20 40 20 60 Pensacola 76 89 76 90 / 20 30 20 40 Destin 77 89 77 90 / 20 30 20 40 Evergreen 71 93 72 95 / 0 10 10 20 Waynesboro 72 94 73 96 / 10 10 10 20 Camden 73 93 73 95 / 0 10 0 10 Crestview 71 92 72 93 / 10 30 20 40 && .MOB WATCHES/WARNINGS/ADVISORIES... AL...None. FL...None. MS...None. GM...None. && $$