047
FXUS61 KILN 151920
AFDILN

AREA FORECAST DISCUSSION
National Weather Service Wilmington OH
320 PM EDT Sun Sep 15 2024

.SYNOPSIS...
High pressure centered northeast of the area will weaken. A low
will move northwest from the Atlantic coast into the central
Appalachians before weakening mid week. This will bring an
increase in clouds and at least a chance of some rain, mainly
from northeast Kentucky into central Ohio.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
Persistent high pressure will keep clear skies across the region
overnight. Lows will drop into the 50s in most areas.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/...
Surface ridge axis will shift northwards a bit during the period
as low pressure moves northwest from the Carolina coast. There
will still be a lot of dry air in place on Monday, but there
could be a bit of diurnal cumulus. Temperatures will not be
quite as warm but still well above normal. Clouds will increase
from the southeast late Monday into Monday night, mainly in the
mid to upper levels, so this may be thin through much of that
time frame. With dry low levels, lows will be able to fall back
into the 50s once again.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
On Tuesday morning, an upper low will be somewhere southeast of the
Ohio Valley, gradually moving into the area and bringing moisture to
the region. The persistent upper ridge and surface high over the
northeastern states will be weakening as it exits into the Atlantic.
The forecast trend for the ILN CWA has continued to be for the low
to move further into the area, and more quickly than in previous
forecast cycles. While the GFS remains a particularly aggressive
solution with regards to northwestward extent and precipitation, it
is hard to ignore that other models have been catching up to its
depiction over the past few days. PoPs will remain in the chance
category at most, as the showers may be somewhat scattered, and
mostly on the lighter side. Still, a few heavier pockets (and maybe
an embedded thunderstorm here and there) could occur. PoPs will be
greatest on Wednesday, with lesser chances on Tuesday and Thursday.
The other impact for the forecast is that temperatures are a little
lower than were forecast in previous days, with highs Tue-Wed-Thu
now in the upper 70s to lower 80s.

Another area of high pressure will begin to build into the area
after the low weakens and shifts off to the southeast again. While
the timing of the departure of the low is uncertain, the high may be
building in by Friday, and more likely for over the weekend. This
will bring drier conditions again, and an increase in temperatures
to the middle to upper 80s.

&&

.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
VFR will continue. There may be a few cumulus late in the
period, otherwise clear skies. Winds will remain easterly around
10 kt during the day and closer to 5 kt at night.

OUTLOOK...No significant weather expected.

&&

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

&&

$$
SYNOPSIS...
NEAR TERM...
SHORT TERM...
LONG TERM...Hatzos
AVIATION...