284
FXUS61 KILN 270647
AFDILN

Area Forecast Discussion
National Weather Service Wilmington OH
247 AM EDT Mon Jul 27 2026

.WHAT HAS CHANGED...
Added fog impacts this morning.

&&

.KEY MESSAGES...
1) Above normal temperatures and humidity arrive today along with a
chance of severe thunderstorms.

2) Fog will impact the area - especially along and southeast of I-71
this morning.


&&

.DISCUSSION...
KEY MESSAGE 1)

Large mid level ridge in place over the Rockies and the Plains with a
band of brisk northwest flow around its periphery from the Upper MS
Valley thru the Great Lakes and Ohio Valley. Initial cluster of
storms remaining to our west this morning where the best instability
is in place. Confidence has increased suggesting that the
conditional severe weather threat overnight has diminished.

Focus shifts to a couple of disturbances that affect the area in the
northwest flow across the area today. Exact timing is still uncertain
but there is a little more of a consensus suggesting that an initial
MCS drops south-southeast this afternoon into this evening. The
highest instability in the strong category is is expected across the
western counties. This is where the best threat for impacts from a
forward propagating MCS will occur. Damaging winds is the main
threat from these storms. Given steep mid level lapse rates and
instability in the hail growth zone, large hail is also a threat.
Also can`t rule out locally heavy rain with the most intense storms.

Additional storms will likely develop late tonight into early Tuesday
ahead of a surface low and associated cold front. High uncertainty
exists regarding coverage and placement of these storms which will
likely be elevated.

With the cold front pushing south thru the area temperatures will
drop to near normal Tuesday and to slightly below normal for the
rest of the week.


KEY MESSAGE 1)

Weak high pressure was offering light winds and mainly clear skies.
This combined with an increase in low level moisture was leading to
the development of area of fog. The best potential for dense fog
looks to be along and southeast of I-71. Will issue a special weather
statement and continue to monitor this area. The fog will improve quickly
after sunrise.

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...

Weak high pressure was offering light winds and mainly clear skies.
This combined with an increase in low level moisture was leading to
the development of area of fog. Expect IFR vsby restrictions at KLUK
and KILN with MVFR restrictions at KLCK. The fog will improve quickly
after sunrise. The fog will lift into a low cloud deck and scatter
out this morning.

Model solutions continue to vary but there is a little more of a
consensus suggesting that an initial complex of storms drops south-
southeast this afternoon into this evening. The highest instability
in the strong category is is expected across the western counties,
where the best coverage and intensity of storms is expected. Damaging
winds is the main threat from these storms. Large hail is also a
threat.

Due to uncertainty regarding timing and placement have kept all
mention of storms in the PROB30 category at this time. Additional
storms will likely develop late tonight into early Tuesday ahead of a
surface low and associated cold front. High uncertainty exists
regarding coverage and placement of these storms which will likely be
elevated.

Surface winds will maintain a southwesterly component today,
increasing to around 10 kts.

OUTLOOK...Thunderstorms into Tuesday morning. MVFR/IFR ceilings
possible Monday night into Tuesday.

&&

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

&&

$$

DISCUSSION...AR
AVIATION...AR