598
FXUS61 KILN 070643
AFDILN

Area Forecast Discussion
National Weather Service Wilmington OH
143 AM EST Sun Dec 7 2025

.SYNOPSIS...
A low pressure system will offer a chance for rain and snow today and
tonight. Seasonably cold temperatures will continue through the
majority of next week, with multiple systems impacting the region
during the mid to late week period.

&&

.NEAR TERM /THROUGH TODAY/...
The ILN fa remains in a WAA regime today, resulting in a surge of
relatively warmer air in the lower levels. This will alter the
thermal profiles aloft and impact the p-type being observed where
pcpn falls today.

Bufkit soundings continue to show the potential for patchy freezing
drizzle early this morning. However, coverage will likely be very
limited, and currently there aren`t many obs west of our fa showing
this weather type. Not anticipating any impacts if this does occur
given the isolated nature of this potential. Locations farther south
may observe drizzle as well, but freezing drizzle less likely down
near the OH River as surface temps quickly warm up after sunrise.

As the column continues to saturate, snow potential will increase,
mainly for counties along/north of I-70. Forcing remains quite weak
with this system in our CWA however, which is keeping PoPs relatively
low. Still maintaining that Mercer, Auglaize and Hardin counties
have the best chance for some accumulating snowfall. Any snowfall
that does occur for areas along/north of I-70 should have limited
travel impacts given that pavement temps will be quite warm during
the day. Thus, any snow accumulations will primarily be on
grassy/elevated surfaces.

&&

.SHORT TERM /TONIGHT THROUGH 6 PM MONDAY/...
Biggest uncertainty with this system will be how much pcpn lingers on
the back end. Several CAMs continue to highlight pcpn lingering much
longer now into the overnight hours and perhaps even into Monday
morning. If this were to occur, rain would eventually transition to
snow as thermal profiles cool given the CAA behind the front. Snow
potential would be highest in southern OH/IN and northern KY, but
there could be light snowfall as far north as I-70. Some
accumulations are possible in our far southern counties, primarily
along/south of the Ohio River. If this scenario where to play out,
some snow could certainly stick to the roadways and impact the
morning commute Monday, but in general, any impacts expected to be
fairly minimal. Probabilities are extremely low for accumulations
greater than 1" in our south, but a few tenths of an inch are not
entirely out of the question. Will have to continue to monitor trends
with this potential.

Any lingering snow will eventually taper off Monday morning as the
cold front surges south and high pressure builds in. Highs will
continue to trend below seasonal normals in the middle 20s to middle
30s.

&&

.LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...
Broad surface high will be moving off to the east at the start of
the period; though quiet conditions will result in Monday`s
overnight low temperatures falling into the teens to low 20s.

Behind the high, two fast moving Clipper systems race toward the
Great Lakes region. The first of the two moves through Monday
night/Tuesday with the majority of guidance keeping the track of
this system well north of our area. Trends have shifted moisture
content north as well, resulting in a dry forecast for our area.
The pressure gradient tightens with the passage of this feature,
resulting in some breezy conditions at the surface, particularly
north of I-70 throughout the day on Tuesday.

The second Clipper-esq system Tuesday night/ Wednesday will be a bit
more robust, as guidance suggests it deepening as it digs into the
larger flow over the Great Lakes. A pretty potent LLJ and tightened
gradient will also move through the region with this wave, resulting
in gusty conditions on Wednesday (gust to 30-35 MPH or so possible).
Guidance continues to shift the track of this system farther north
as well, placing the ILN CWA more comfortably in the warm sector,
resulting in a more rain solution across the region Wednesday
daytime. However, cannot rule out some snow showers on the back end
of the system with any lingering wrap around moisture sometime
Wednesday night into Thursday.

The end of the week, guidance gets a bit more convoluted as
additional shortwaves are forecast to move through the region,
bringing continued chances for precipitation. Despite details on
precip and precip type being scarce, there is a decent signal for
stronger cold air advection to move back into the region, resulting
in temperatures falling well below seasonal normals.

&&

.AVIATION /06Z SUNDAY THROUGH THURSDAY/...
MVFR CIGs will persist at the beginning of the taf period, with some
improvement occurring in our southern terminals near sunrise in the
WAA regime. However, MVFR CIGs are more likely to linger across
KCMH/KLCK and KDAY through the daytime hours. Elsewhere, there will
likely be a period of VFR conditions before the cold front begins to
move south during the afternoon and deteriorate conditions again.

Some MVFR vsbys being observed early this morning, so included that
for some of the terminals. Removed mention of FZDZ for this morning
given low confidence in occurrence and coverage. Obs sites to the
west still not observing any FZDZ, but will continue to monitor and
add it back in if confidence increases.

Pcpn coverage expected to be minimal across the terminals during the
daytime hours. Best chance for pcpn will be along/north of I-70
ahead of the cold front. However, there is an increasing signal for
pcpn coverage to increase tonight behind the front. KCVG/KLUK and
KILN would have the best chances for pcpn tonight, which would start
as RA before transitioning to SN. However, light snow could perhaps
reach our northern terminals as well for a brief period. Immediately
behind the cold front will also be the best chance for IFR CIGs.

OUTLOOK...MVFR to IFR CIGs likely Wednesday into Thursday. Gusty
winds possible Wednesday.

&&

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

&&

$$

SYNOPSIS...
NEAR TERM...
SHORT TERM...
LONG TERM...CA
AVIATION...