Area Forecast Discussion
Issued by NWS Columbia, SC

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FXUS62 KCAE 270248
AFDCAE

Area Forecast Discussion
National Weather Service Columbia SC
1048 PM EDT Thu Apr 26 2018

.SYNOPSIS...
A low pressure system will move through the area tonight into
early Friday. High pressure will build across the region this
weekend into early next week bringing dry weather and seasonable
temperatures.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Regional radar showing lingering showers across the eastern half
of the forecast area associated with the deeper plume of
moisture and highest precipitable water values interacting with
upper level energy associated with the upper low over eastern
TN. The upper low will continue to lift northeastward into NC
overnight and showers will continue to lift northeastward
through the forecast area over the next few hours but then shift
out of the area during the 05z-09z time frame. Generally
expecting scattered showers so have adjusted pops down a bit
with lower coverage expected and also removed mention of thunder
with atmosphere stabilizing. Cannot rule out an isolated rumble
of thunder in the northern Midlands as the core of the upper
level cold air passes. Overnight lows will be limited by clouds
as some stratocumulus clouds may develop during the predawn
hours, and expected to be in the 50s.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH FRIDAY NIGHT/...
Cannot rule out a few lingering showers over portions of the
northern Midlands Friday morning before drying moves in. The
atmosphere will dry out Friday night as another trough of low
pressure crosses the area.

Highs on Friday in the mid 70s. Lows will be in the lower 50s
Friday night.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
Dry weather still expected to prevail for much of the extended
period. A broad upper-level trough over the eastern CONUS will
slowly move off the coast into Monday. Models indicting upper
ridge will finally begin to build into the eastern portions of
the country by the middle of next week, bringing warmer
temperatures to the area into Thursday. Daytime highs in the
mid and upper 70s will moderate to the mid 80s by midweek.
Overnight lows will be in the upper 40s to the mid 50s.

&&

.AVIATION /02Z FRIDAY THROUGH TUESDAY/...
Restrictions possible through mid morning then returning to VFR
for the remainder of the period.

Showers continue moving through the terminals with mainly VFR
conditions. Expect restrictions to develop during the early
morning hours as moisture becomes trapped under the inversion
and lower clouds and fog upstream move into the area.
Restrictions will slowly lift during the morning hours with
cumulus developing during the late morning and afternoon hours
with bases around 3500 feet. Winds through the period will be
westerly at 9 knots or less...with some gusts possible in and
around heavier showers.

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

&&

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

&&

$$



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