Decatur, Alabama 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

193
FXUS64 KHUN 111612
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
1112 AM CDT Fri Apr 11 2025

...New AVIATION...

.NEAR TERM...
(Rest of Today)
Issued at 736 AM CDT Fri Apr 11 2025

Dense valley fog persists in northeast AL into Franklin County
TN, including the Paint Rock, Tennessee and Sand/Big Wills
Valleys. We will allow the Dense Fog Advisory to expire since the
fog is not widespread. A cumulus field will expand quickly this
afternoon with peak heating, and showers and thunderstorms will
develop this afternoon as another vort lobe/cold pocket aloft
arrives. Pea sized hail will be possible given steepening lapse
rates and cold air aloft. High temperatures should climb into the
lower to middle 60s.

&&

.SHORT TERM...
(Tonight through Sunday)
Issued at 1109 AM CDT Fri Apr 11 2025

Remaining clouds and showers will end and shift southeast of the
area this evening. We will have another cool night with lows in
the upper 30s to around 40. Winds should keep frost limited at
this point. The amplified upper trough will continue to shift
east this weekend, inducing deep layer north-northwest flow. At
the surface and 8h, a ridge of high pressure will drop southeast
into the upper OH and TN valleys Saturday and to the southeast
Coast and Gulf of America Sunday. Southwest flow will increase as
a result on Sunday inducing fairly strong warm air advection. A
thermal ridge at 8h will poke temperatures into the middle teens
across the mid South and TN valley. This should result in high
temperatures climbing back well into the 70s.

&&

.LONG TERM...
(Sunday night through Thursday)
Issued at 922 PM CDT Thu Apr 10 2025

Surface high pressure will begin to push east Sunday night as a
mid level low develops in the northern Plains. The low pressure
is forecast to move through the Great Lakes Region on Monday.
The low will be a little too far away to trigger any significant
weather locally thus very low rain chances have been maintained
with the frontal passage associated with the low pressure. An
uptick in winds and clouds will likely be the main indicator of
the frontal passage. Ahead of the front, highs look to push into
the low 80s.

Tuesday and Wednesday will see milder conditions as we again take
on post frontal NW flow. Temps will remain in the high 60s with
gusty winds still possible Tuesday afternoon as the pressure
gradient behind the front remain tight. Our next bout of
interesting weather looks to arrive mid day Thursday with a slight
uptick in rain chances as a surface low pressure system looks to
move across the TN Valley. While its a little early to nail down
specifics, there are no strong indicators in the models for severe
weather at this time.

&&

.AVIATION...
(18Z TAFS)
Issued at 1112 AM CDT Fri Apr 11 2025

VFR flight weather conditions (ceilings above 030agl) are
anticipated for most of north AL. However, ceilings may drop below
030agl (MVFR) briefly this afternoon in southern middle TN and
far northeast AL. Scattered SHRA and perhaps a TSRA or two will
develop this afternoon but should dissipate quickly by sunset
(~00Z).


&&

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

$$

NEAR TERM...17
SHORT TERM....17
LONG TERM....RAD
AVIATION...17