Area Forecast Discussion
Issued by NWS Wilmington, OH

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FXUS61 KILN 260538
AFDILN

Area Forecast Discussion
National Weather Service Wilmington OH
138 AM EDT Tue Sep 26 2017

.SYNOPSIS...
An upper level ridge will remain over the region through mid
week. This will bring dry and warm weather conditions to the
region. Much cooler air will settle into the region by the end
of the week.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
Thicker band of high clouds across the region will translate
north through the evening with skies becoming clear for the
latter half of the night. With light and variable winds and an
increase in dew points, there could be some fog in places.
Forecast lows look reasonable at this point.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM WEDNESDAY/...
The ridge will continue to hold across the region on Tuesday.
Since the area is on the backside of the ridge, the low level
moisture will be on the increase, so there should be an increase
in cu for Tuesday. Highs will be around 90 again as subsidence
ahead of Maria continues.

Cold front will be pushing up the Ohio Valley Tuesday night, but
the night should be dry. Lows will be in the lower to mid 60s.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/...
A cold front will move through on Wednesday.  Moisture is limited
with this feature therefore only have a slight chance of showers
across northwestern portions of the forecast area.  Cannot rule out
an isolated thunderstorm, however instability is limited therefore
kept thunder mention out of the forecast.  Any precipitation will
taper off by Wednesday evening.  The more pronounced feature with
this front will be the drop off in temperatures.  High temperatures
on Wednesday will be in the 80s and highs on Thursday will be in the
upper 60s to middle 70s. Dry conditions will be in place for
Thursday, however with cold air advection have clouds increasing
during the daytime hours with cu development.

Dry conditions will continue for Thursday.  Reinforcing cool air
will move in for Saturday due to an upper trough moving through
Friday into Saturday.  The coolest night is expected to be Saturday
night with lows in the 40s across most areas.  A few spots north of
Columbus may drop into the upper 30s by early Sunday morning.
Temperatures will begin to warm slightly for Sunday and Monday.  The
ECMWF begins to move precipitation into the area for Monday, however
went with a dry forecast at this time until there is more model
continuity.

&&

.AVIATION /06Z TUESDAY THROUGH SATURDAY/...
High level cloudiness is finally lifting off to the northeast
so expect mainly clear skies through the remainder of the
morning. With light flow, this should allow for some MVFR to
local IFR fog development through daybreak, especially in the
the more favorable valley locations. Fog will dissipate through
mid morning leaving mainly clear/VFR conditions through the
remainder of the period.

OUTLOOK...No significant weather expected.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...None.
KY...None.
IN...None.

&&

$$
SYNOPSIS...Haines/Sites
NEAR TERM...
SHORT TERM...Sites
LONG TERM...
AVIATION...JGL


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