FXUS61 KILN 041749

AFDILN



Area Forecast Discussion

National Weather Service Wilmington OH

149 PM EDT Tue Aug 4 2026



.WHAT HAS CHANGED...

No significant changes.



&&



.KEY MESSAGES...

1) An active weather pattern returns mid-week with a return of 

showers and thunderstorms.



&&



.DISCUSSION...

KEY MESSAGE 1)

Shallow mid/upper level troughing will shift slowly east across the

Great Lakes region through the end of the week. As it does, several 

embedded impulses will move through the trough. This will lead to 

occasional chances for showers and thunderstorms over the next 

several days. 



The first chance for precipitation will be Wednesday as an 

instability gradient develops across eastern portions of our area. 

While forcing is limited, instability should be sufficient enough 

for at least scattered thunderstorm development through the afternoon

and lingering into the evening. Given the weak forcing and light 

flow, the severe threat will be low, but light flow/slow storm 

movement will lead to the potential for locally heavy downpours. 



Better chances for showers and thunderstorms will develop Thursday 

into Friday and continuing into the weekend as somewhat stronger 

impulses begin to move through the trough. This will also result in 

somewhat better mid level wind fields/deeper layer shear. This would

support the potential for a few stronger to possibly severe storms 

as we progress through the week. 



&&



.AVIATION /18Z TUESDAY THROUGH SUNDAY/...

High pressure will shift slowly east overnight. With light winds and

mostly clear skies, some fog will be possible tonight, especially in

the river valleys. Will therefore allow for some IFR to VLIFR vsbys 

at KLUK through daybreak and some MVFR vsby restrictions at 

KILN/KLCK. 



Scattered cu will develop later Wednesday morning and into the

afternoon. As we destabilize through the afternoon, scattered 

thunderstorms will be possible, mainly affecting eastern portions of

the area.



OUTLOOK...Thunderstorms are possible at times through Saturday.



&&



.ILN WATCHES/WARNINGS/ADVISORIES...

OH...None.

KY...None.

IN...None.



&&



$$



DISCUSSION...JGL

AVIATION...JGL