Area Forecast Discussion
Issued by NWS Columbia, SC

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FXUS62 KCAE 242336
AFDCAE

Area Forecast Discussion
National Weather Service Columbia SC
636 PM EST Fri Nov 24 2017

.SYNOPSIS...
High pressure over the area tonight will weaken Saturday.
A dry cold front will cross the region Saturday night, with
high pressure building into the region for Sunday through
Wednesday.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
High pressure will remain over the region tonight. A dry airmass
will be in place with winds becoming near calm and clear skies
early on. Near ideal radiational cooling conditions expected
although some high thin clouds possible after 09z in near zonal
flow aloft ahead of an approaching frontal boundary. Overnight
temperatures should be slightly lower than mos mean...as was the
case last night. Overnight lows will range through the 30s.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY NIGHT/...
Broad upper troughing will be over the eastern U.S. this
weekend. Southwest flow at the surface will bring warmer
weather on Saturday, with highs in the mid to upper 60s. A dry
cold front will then swing through the area Saturday night. Mid
and high clouds will increase, but moisture appears limited in
a NW flow aloft, so precipitation is not likely. Lows Saturday
night will be in the upper 30s to lower 40s. Slightly cooler and
even drier air will follow on Sunday. With clear skies, near
freezing temperatures are expected Sunday night with frost
probable.

&&

.LONG TERM /MONDAY THROUGH FRIDAY/...
High pressure will build into the region Monday and Tuesday,
providing fair conditions. Frost conditions will be possible
Monday night/Tuesday morning with lows mostly in the mid 30s.
A closed low tracking from the Four Corners region will lift
north through the Plains and become an open wave by the time it
reaches the Great Lakes on Wednesday night. This track means
minimal impact on the local area, and mild and dry conditions
are now expected to prevail through Thursday. Have kept a slight
chance of showers in the forecast Thursday night and Friday as
the next cold front comes through, but there is still alot of
uncertainty and significant model differences in regards to the
strength of this system.

&&

.AVIATION /00Z SATURDAY THROUGH WEDNESDAY/...
VFR conditions expected through the TAF period.

Ridge of high pressure remains over the region keeping skies clear
with light winds. Through the period high pressure will slowly
move away from the region as a cold front approaches from the
northwest. Late in the period expect increasing mid and upper
level clouds along with some gusty west winds as the front
moves into the TN Valley. Fog is not expected overnight due to
dry airmass in place.

EXTENDED AVIATION OUTLOOK...No significant impacts to aviation
expected through Tuesday.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.

&&

$$


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