491
FXUS64 KHUN 061106
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
606 AM CDT Sun Apr 6 2025

...New AVIATION...

.NEAR TERM...
(Today)
Issued at 524 AM CDT Sun Apr 6 2025

The severe threat has ended and the Tornado Watch was cancelled
for our remaining counties at 4 AM. The main concern through the
rest of the day is flooding, as stratiform rain persists over all
of northern Alabama and southern middle Tennessee. Between 2-3
inches of rain fell overnight, with some locations having received
closer to 4 inches (northwest Alabama). As rain continues through
the day today, an additional 1-2 inches of rain is possible. This
may lead to additional rises on rivers, creeks, and streams as
well as terrain enhanced flooding. Furthermore, several Flash
Flood Warnings continue across northwest Alabama, north-central
Alabama and southern middle Tennessee through 6/615 AM this
morning. Thus, the Flash Flood Watch remains in effect through 7
PM this evening. Remember, turn around, don`t drown! Never drive
through flooded roadways or around barricades!

Lastly, with ample cloud cover and rainfall, highs are forecast
to only reach the upper 60s to lower 70s this afternoon.

&&

.SHORT TERM...
(Tonight through Tuesday)
Issued at 945 PM CDT Sat Apr 5 2025

Cooler air arrives behind the cold front as northwesterly flow
helps drop temperatures down into the mid 40s. This is around 20
to 25 degrees cooler than the last few nights. We remain
underneath the upper level trough to start the work week. This
will allow for below climatological norm temperatures on Monday
and Tuesday with afternoon highs in the mid to upper 50s and lows
in the low to mid 30s. There is a low chance (15-20%) for some
subfreezing temperatures or frost Tuesday night along and north
of the Tennessee River. This trend will be monitored in future
updates if headlines are needed.

&&

.LONG TERM...
(Wednesday through Saturday)
Issued at 945 PM CDT Sat Apr 5 2025

As we head into the second half of next week, the upper level
pattern shows a more zonal flow across the Southeast. Seasonal
temperatures and dry weather are forecast both Wednesday and
Thursday with afternoon highs in the upper 60s to lower 70s.
Another trough digs down across the Plains on Thursday which will
bring another weak cold front into the Tennessee Valley. Low
chances (20-30%) of showers and maybe even a rumble of thunder on
Thursday night/Friday. The good news is that severe weather is not
expected with this frontal passage. The upper level trough pushes
to the east at the end of next week, bringing back dry weather to
start the weekend.

&&

.AVIATION...
(12Z TAFS)
Issued at 606 AM CDT Sun Apr 6 2025

MVFR to low-end VFR conditions will continue at KMSL/KHSV due to
lower ceilings and reduced visibilities from TSRA. AWWs are in
effect for both sites until 13z due to cloud to ground lightning.
Have also included a TEMPO this morning from localized IFR
conditions due to reduced visibilities at both terminals from
heavier convection. By early this afternoon, precipitation will
taper off, but low stratus will remain, creating MVFR conditions
through the afternoon -- to go along with WSW winds. These winds
will gradually weaken to 10 kts or less overnight, but MVFR
conditions will likely continue due to low clouds through the
remainder of the period.

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...Flood Watch through this evening for ALZ001>010-016.

TN...Flood Watch through this evening for TNZ076-096-097.

&&

$$

NEAR TERM...26
SHORT TERM....GH
LONG TERM....GH
AVIATION...AMP.24