Area Forecast Discussion
Issued by NWS Huntsville, AL

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FXUS64 KHUN 241625 AAC

Area Forecast Discussion...UPDATED
National Weather Service Huntsville AL
1125 AM CDT Mon Oct 24 2016

For 18Z TAFS.


.NEAR TERM...(Rest of Today)
Issued at 920 AM CDT Mon Oct 24 2016

Cirrus clouds fanning across northern AL are non-opaque for the most
part, and will continue to see those decrease through the midday
hours. Raised temps just 1-2 degrees for afternoon highs with a bit
less opaqueness expected. Otherwise, no other changes required for
today`s forecast.

.SHORT TERM...(Tonight through Wednesday night)
Issued at 203 AM CDT Mon Oct 24 2016

A ridge over much of the central U.S. will continue to strengthen
tonight aiding the clear skies that are expected. That, coupled with
the light winds will lead to good radiational cooling conditions.
Even with the warming 850 temps, lows will get to similar values as
previous nights, in the lower to upper 40s.

East-southeast flow at the lower levels develops on Tuesday as the
surface high meanders east. This will advect slightly cooler air
into the region and keep highs around 80 but down into the middle
70s in NE Alabama and southern middle TN.

As the ridge and surface high continue to track east, winds shift
southerly Tuesday night. Cirrus clouds will also be on the increase
as a frontal system approaches from the west. This will keep lows in
the upper 40s to lower 50s. This warm southerly flow and increasing
clouds continues Wednesday with highs back into the upper 70s to
around 80.

The upper ridge breaks down just enough on Wednesday to allow an
upper trough to develop over the upper midwest. The 850mb high
remains strong which will lift the upper low and the main support
for the surface front to the northeast. The front will start to make
its way across the local area by 12z Thursday with just enough
moisture and lift to have isolated showers accompanying it. Lows will
be warm, in the upper 50s.

.LONG TERM...(Thursday through Sunday) Issued at 203 AM CDT Mon Oct
24 2016

The above mentioned cdfnt will push across the TN valley by Thursday
aftn or early evening, taking the sct shower activity with it. Will
keep pcpn as showers since instability values are very weak attm.
Temps behind this cdfnt will not cool off very much. Afternoon highs
on Friday are still progged to be arnd 80. However by Saturday
aftn/evening, another cdfnt will quickly move across the cwa. This
cdfnt looks to be a dry one but will bring cooler temps across the TN
valley by next weekend. Sunday looks dry and cool with highs in the
upper 60s and mrng lows in the 40s.


.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1124 AM CDT Mon Oct 24 2016

VFR flight weather conditions are forecast during the next 24 hours.
Light and variable wind flow is expected through tonight before
turning southeasterly on Tuesday.





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