018
FXUS64 KMOB 121837
AFDMOB

Area Forecast Discussion
National Weather Service Mobile AL
137 PM CDT Wed Aug 12 2026

...New DISCUSSION, AVIATION, MARINE...

.KEY MESSAGES...
Updated at 1059 AM CDT Wed Aug 12 2026

- Heat Risk increases on Thursday, which will continue into the
  upcoming weekend. A Heat Advisory is in effect from 11AM thru
  8PM on Thursday, with additional heat headlines expected through
  the weekend. Afternoon heat indices in the 105-112 degree range
  will be dangerous for anyone outdoors for extended periods.

- A Moderate risk of rip currents returns to Florida beaches
  Wednesday afternoon through Thursday.

&&

.DISCUSSION...
Issued at 1059 AM CDT Wed Aug 12 2026

Starting off with early this afternoon, seeing a few shallow
showers developing inland, as well as a few anchored to SW/NE
boundaries in nearshore marine areas. Latest NBM PPI grids from
the 13Z guidance supports this well, as CAMS continue to support
best rain chances along/north of the I-10 corridor. A few that
interact/anchor to the seabreeze boundary aided by greater
forcing could grow tall enough to become thunderstorms with time.
Regardless of nearby high pressure, the vertical column/thermal
profile according to proximity soundings remains rather moist
adiabatic, with a slug of enhanced tropospheric moisture locked in
across SE LA, east to our general area. But we`ll see all
activity come to an end later on around sunset once we lose
diurnal support.

Generally quiet tonight, then another hot one coming up tomorrow.
Did pay close attention to afternoon dewpoints, implementing a
more realistic PBL mixing regime and lowering inland dewpoints a
few degrees. Wanted to do this first before looking at MaxApt
values which even after the fact, clearly places us in Heat
Advisory criteria for the I-10 corridor. Now farther inland,
especially across interior AL along the I-65 corridor, yes,
greater deep mixing could prohibit reaching criteria (moreso
104-107), but did not want to split hairs and obscure the
messaging that impacts will be increasing starting tomorrow for
those spending time outdoors. The upper-level ridge center
overhead continues to retrograde west, with remnant energy over
the Ohio Valley region to rotate south into AL/GA, in conjunction
with building tropospheric moisture to enhance afternoon
shower/storm coverage. NBM PoPs are targeting greater coverage
for mainly eastern areas, which appears plausible given
aforementioned reasoning. A few storms could be locally strong,
with strong gusty winds the main risk. Will monitor that.

Friday through the weekend, the main key message will be the
heat, with heat headlines likely to persist. Otherwise, will
monitor this same mid-level impulse, then drifting west along the
northern Gulf coast that could aid in dynamic lift to support a
bit greater, mainly late morning into afternoon scattered
shower/storm coverage, particularly on Saturday. A few storms may
be locally strong to severe depending on how storms behave across
intersecting boundaries enhancing localized ascent, but will
monitor.

Next week, the heat continues with no real major changes in the
impacts. Afternoon heat indices in the 106-110 range will
persist, with typical mainly afternoon pop-up storm chances. We
could see a bit of a breakdown in the ridge mid-week, allowing a
trending weakness in upper-level heights to support greater
shower/storm coverage and less in the way of the heat, however,
will be able to fine tune that closer especially into early next
week. KLG

&&

.AVIATION...
(18Z TAFS)
Issued at 1059 AM CDT Wed Aug 12 2026

Expect VFR conditions for all area terminals through the forecast
period. Did introduce Prob30`s this afternoon mainly for PNS, as
well as MOB and BFM for an isolated shower or storm possible.
Coverage/confidence is low, however, with prevailing VFR outside
of any isolated SHRA/TSRA. Clear/calm tonight with no additional
impacts expected. KLG

&&

.MARINE...
Issued at 1059 AM CDT Wed Aug 12 2026

Nearby high pressure will continue to promote light southwesterly to
westerly winds through the forecast period. Waves/seas will remain
light with no impacts anticipated. KLG

&&

.PRELIMINARY POINT TEMPS/POPS...
Mobile      94  76  94  76 /  20   0  10   0
Pensacola   93  79  94  79 /  20  10  20   0
Destin      91  80  92  80 /  20  10  10   0
Evergreen   95  75  96  76 /  20   0  10   0
Waynesboro  97  76  98  74 /   0   0   0   0
Camden      94  76  95  77 /  10  10  10  10
Crestview   96  75  97  75 /  30  10  20   0

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...None.
FL...None.
MS...None.
GM...None.
&&

$$