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000
FXUS64 KHUN 210726
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
226 AM CDT Sun Apr 21 2024

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

.NEAR TERM...
(Today)
Issued at 226 AM CDT Sun Apr 21 2024

Dense cloud cover and some light stratiform rain remains in place
early this morning across the Tennessee Valley as an area of low
pressure shifts across the Deep South. To the southwest, a larger
cluster of showers and few storms is tracking eastward across the
Gulf region of Alabama, Mississippi, and Louisiana. This activity
will remain to our south (save for a few light showers that may
clip southern portions of the CWA through 15-18z). A deepening
upper-trough will swing across the region today, pushing the true
cold front through the area and ushering in a cooler, drier air
mass. As a result, temperatures will again be below normal for
late April as highs in the upper 50s to lower 60s will be common
(even as we dry out) and cloud cover dissipates during the
afternoon.

&&

.SHORT TERM...
(Tonight through Wednesday)
Issued at 226 AM CDT Sun Apr 21 2024

Clear conditions will develop by this evening as winds slowly
begin to weaken. This will allow for some radiational cooling in
this dry air mass with low temperatures dropping into the upper
30s to lower 40s in most locations by early Monday morning. A few
locations (especially in southern middle Tennessee) could see a
brief period for patchy frost development. However, confidence is
still low given borderline temperatures and the magnitude of this
dry air mass. As such, have held off on an Advisory for now. We
will enter a period of tranquil weather early this week as high
pressure builds back into the region. In turn, we`ll see a gradual
warming trend as highs return to the mid/upper 60s on Monday and
the low to mid 70s Tuesday and Wednesday. One feature we will have
to watch is a weak shortwave that will ripple southeast across the
area late Tuesday night into early Wednesday morning. This feature
may bring a brief period of cloud cover and perhaps a few
sprinkles in the predawn hours Wednesday morning. However, in
general mostly sunny and dry weather is forecast for the entire
period Monday through Wednesday.

&&

.LONG TERM...
(Wednesday night through Saturday)
Issued at 226 AM CDT Sun Apr 21 2024

An upper ridge axis will build amplify across the region Thursday
and Friday. Cloud cover ahead of a low pressure system well to the
west will filter back into the region, especially by Friday
However, deep southerly flow (combined with sufficent breaks of
sunshine) will help push highs back into the mid 70s on Thursday
and the upper 70s to lower 80s on Friday and Saturday. 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 this weekend and/or early next week.


&&

.AVIATION...
(06Z TAFS)
Issued at 1046 PM CDT Sat Apr 20 2024

By 06Z, expect very low chances of -SHRA impacting either
terminal. Therefore, only included a VCSH for any -SHRA that might
move close to the terminals. Winds should be from the NNE as the
front should shifts south of both terminals by then. Winds should
stay between 5 and 10 knots overnight. These winds and lingering
VFR CIGS should keep fog from forming. Winds should pick up after
daybreak an stay northerly around 10 knots with gusts near 20
knots possible.

&&

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

$$

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