National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FXUS64 KHUN 200803
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
303 AM CDT Sat Apr 20 2024

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

.NEAR TERM...
(Today)
Issued at 303 AM CDT Sat Apr 20 2024

Dense cloud cover remains in place in wake of a cold front that is
currently stalled just to the southeast of the area. These clouds
are currently keeping temperatures relatively mild this morning
with 08z readings still in the low to mid 60s in spite of the
northerly flow attempting to advect in a cooler air mass. We
remain in zonal flow aloft, but guidance points to a couple of
weak shortwaves that will ripple across the Mid South and
Tennessee Valley. In response some low (20-30%) chances for rain
showers (and perhaps a rumble of thunder or two) will return to in
the afternoon as the aforementioned boundary attempts to nudge
back to the north. Otherwise it will remain mostly dry and much
cooler than yesterday as highs will struggle to climb above the
65-70 degree range.

&&

.SHORT TERM...
(Tonight through Tuesday)
Issued at 303 AM CDT Sat Apr 20 2024

Rain chances will increase this evening and especially overnight
in response to the passage of a shortwave trough that will ripple
from the lower Mississippi Valley into the Tennessee Valley.
Medium to high chances (50-80%) for rain showers and potentially
an isolated thunderstorm or two will be present, especially late
tonight into the early Sunday morning timeframe. Precipitation
will taper off from west to east Sunday morning, but dense cloud
cover and northerly flow will make for a very cool day as highs
will only climb into the upper 50s to lower 60s. Dry air will
erode cloud cover late in the day into the evening hours and we`ll
be looking at a mostly clear night Sunday night. If winds can
decouple, we could be looking a patchy/areas of frost briefly by
early Monday morning as lows in the upper 30s to lower 40s will
be common. High pressure will build into the area early next week,
promoting mostly clear and dry conditions. In response, a warming
trend will occur as we will warm into the upper 60s on Monday and
the lower 70s by Tuesday.

&&

.LONG TERM...
(Tuesday night through Friday)
Issued at 303 AM CDT Sat Apr 20 2024

High pressure will get squeezed to the southeast mid to late
week, with a couple of weak impulses pushing across the area each
day. However, very limited moisture will keep the forecast dry,
with only scattered to broken bands of cloud cover being the main
impact. Temperatures each day will peak in the low to mid 70s,
with lows in the upper 40s to lower 50s. A pronounced longwave
trough over the western United States will slowly progress
eastward late this week into the weekend. This will be the next
feature to watch as it may bring our next decent chances for
showers/storms by next weekend.

&&

.AVIATION...
(06Z TAFS)
Issued at 1235 AM CDT Sat Apr 20 2024

MVFR cigs near 1500ft prevail at both main terminals heading into
the overnight hrs. Little change in these conds is expected into
Sat morning, before cigs lift above 3K ft going more into the
afternoon period. A PROB30 group for reduced cigs/vis has been
maintained during the afternoon hrs, as sct shra begin to spread
eastward into the area. Mid level cigs near 5K ft will then linger
thru the evening period, with a prevailing VCSH group given the
uncertainty in the development of additional shra. North winds
near 7-8kt will also become more NNE around 8-10kt with higher
gusts Sat morning.

&&

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

$$

NEAR TERM...AMP.24
SHORT TERM....AMP.24
LONG TERM....AMP.24
AVIATION...09