Flash Flood Warning 4, NWS Huntsville, AL

Area Forecast Discussion
National Weather Service Huntsville AL
843 AM CDT Sun May 24 2026

...New NEAR TERM, SHORT TERM...

.KEY MESSAGES...
Updated at 843 AM CDT Sat May 23 2026

 - A wet weather pattern will continue for the next seven days.

 - Low risk of excessive rain and flash flooding during this
   period.

 - Gusty winds and lightning will be the other hazards associated
   with thunderstorms.

&&

.NEAR TERM...
(Rest of Today and Tonight)
Issued at 843 AM CDT Sun May 24 2026

An MCV was lifting northeast into southwest AL this morning.
northwest of the center, a persistent band of deep layer
convergence was generating showers and embedded thunderstorms from
southeast MS into north AL. The lightning activity has been
limited thus far, but with daytime heating, this will tend to pick
up. Locally heavy rainfall will occur in this persistent band as
it lifts northeast into the north and northeast AL. There may be
a break in the activity this afternoon as this band shifts further
east this afternoon as the MCV departs. Then, added heating
should generate additional isolated to scattered showers and
thunderstorms. CAMS show a relative minima after daytime heating
ceases this evening, so PoPs become lower overnight. Afternoon
highs will be in the upper 70s to lower 80s followed by lows in
the 60s tonight.

&&

.SHORT TERM...
(Monday through Tuesday)
Issued at 843 AM CDT Sun May 24 2026

Deep layer southerly flow will persist through the southeast and
TN Valley on Monday into Tuesday between a weak 5h low over the
ARKLATEX region and a Bermuda high. The western low lifts north-
northwest as a trough digs into the Rockies. Southerly flow
increases to 20-25kt in the 8-5h layer with general confluent flow
persisting in a high PW/theta-E airmass. Thus, a continued risk
of locally excessive rainfall is expected. High temperatures will
be similar both days in the upper 70s to lower 80s with lows in
the 60s.

&&

.LONG TERM...
(Tuesday night through Saturday)
Issued at 1059 PM CDT Sat May 23 2026

Unsettled weather will continue for the remainder of next week,
with daily chances of showers and thunderstorms. The circulation
rounding surface high pressure off of the east coast will continue
bringing deep moisture from the Gulf region well inland. Rain
chances however will begin to take on a more diurnal trend as we
go into the latter portion of the week, with the highest chances
in the afternoon and early evening. Daily high temperatures should
range in the low/mid 80s and lows in the mid 60s. A frontal
boundary is forecast to move across the area on Saturday from the
north. Depending upon far south it moves, rain chances next week
may indeed become lower.

&&

.AVIATION...
(12Z TAFS)
Issued at 626 AM CDT Sun May 24 2026

MVFR to VFR conditions were reported across north Alabama at
issuance. Medium to high chances (50-90%) of showers and storms
will be the theme today, with the highest chances in the
afternoon. Expecting CIGs to waffle between MVFR and VFR through
the day, with conditions dropping to potentially IFR in the
heavier showers/storms. Shower and storm chances then decrease
this evening, but are forecast to increase once again by daybreak
Monday morning. Light winds this morning are expected to become
southwesterly and increase to be around 5 knots or so through the
day (outside of thunderstorms). By this evening, light to calm
winds will take hold and persist through the overnight.

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...None.
TN...None.
&&

NEAR TERM...17
SHORT TERM....17
LONG TERM....RSB
AVIATION...26