Area Forecast Discussion
Issued by NWS Huntsville, AL

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325
FXUS64 KHUN 171836
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
136 PM CDT Tue Sep 17 2024

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

.NEAR TERM...
(Tonight)
Issued at 136 PM CDT Tue Sep 17 2024

High pressure continues to remain the dominant weather feature
across the Tennessee Valley and is promoting dry and generally
clear conditions across the region. Scattered to broken decks of
mid to high clouds from a stalled low over the Carolinas have
infiltrated the eastern half of the area -- creating partly to
mostly cloudy conditions. Expect these clouds will thin later this
evening and overnight, with mostly clear and calm conditions
forecast across the region -- allowing temperatures to fall into
the lower 60s. This will also create a very favorable setup for
radiation fog, especially across northwest Alabama and the
Bankhead National Forest (where heavy rainfall occurred last
weekend). This fog will develop late this evening and may become
locally dense late tonight into early Wednesday morning.

&&

.SHORT TERM...
(Wednesday through Friday)
Issued at 136 PM CDT Tue Sep 17 2024

The area of low pressure to our east will shift NE into the Mid
Atlantic region as a ridge of high pressure over south Texas
expands eastward into the Lower Mississippi and Tennessee Valley
mid to late week. The end result will be continued mostly clear
and dry weather and a gradual warming trend by the end of the work
week. Highs will gradually rise to the lower 90s by Friday, with
model soundings showing a very dry profile indicative of strong
subsidence from the ridge.

&&

.LONG TERM...
(Friday night through Monday)
Issued at 157 AM CDT Tue Sep 17 2024

High pressure will remain the dominating feature through the long
term forecast. Mid level ridging will build in from the SW and
remain through the weekend. While the overall trend will be clear
and dry conditions with temps in the high 80s to low 90s, we will
be monitoring any impacts from an upper low tracking east across
the CONUS. Being on the eastern periphery of high pressure will
place us in a NW flow regime marking a favorable pattern for SE
expansion of clouds and rain from the parent low. While the
current forecast is dry, we will be monitoring how these two
features interact (NW flow from high pressure and low pushing
east) over the next several days for any forecast changes.

&&

.AVIATION...
(18Z TAFS)
Issued at 1226 PM CDT Tue Sep 17 2024

VFR conditions will continue this afternoon and evening. Areas of
fog are forecast to develop late tonight into early Wednesday
morning and have included a TEMPO for IFR conditions between
09-12z. A return to VFR conditions is forecast for the remainder
of the period Wednesday morning.

&&

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

$$

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