190 FXUS61 KILN 121024 AFDILNArea Forecast Discussion National Weather Service Wilmington OH 624 AM EDT Fri Sep 12 2025
.SYNOPSIS... High pressure will continue into Saturday. A weak system will drop across the area Saturday night. High pressure will return for much of next week.
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.NEAR TERM /UNTIL 6 PM THIS EVENING/... Very dry airmass is in place with ridging at the surface and aloft. Any diurnal cumulus will be quite limited. Gradual warming trend in highs will continue.
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.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/... Mid level high will temporarily get suppressed as a short wave rides over the top of it and slide through the western Great Lakes into the region on Saturday. This will bring some mid to high clouds into the region Saturday afternoon. Prior to that, the atmospheric column will remain quite dry. Trend of a gradual increase in temperatures from night to night and day to day will continue.
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.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/... Very stable, high amplitude mid level pattern will predominate. A short wave will cross the area on Saturday night. While there is some lift with this, moisture will be limited and low levels will remain dry. So the chance of measurable rain is rather low and any amounts that might occur will be quite light.
After the short wave passes, an initially narrow ridge extending from Mexico into Canada will shift eastwards. This ridge will broaden over time as it becomes positively tilted. Guidance is tightly clustered with this evolution but then starts to show some spread heading into mid week. At that point, a number of solutions develop a closed low near the south Atlantic coast and then slowly start to retrograde that underneath the high, although how quickly as well as latitudinal position remains to be seen.
For the forecast area, this pattern is more warm and dry.
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.AVIATION /12Z FRIDAY THROUGH TUESDAY/... Little if any clouds forecast through the period with light east to northeast winds. It is not out of the question that some shallow fog could cause visibility restrictions at KLUK late.
OUTLOOK...No significant weather expected.
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.ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None.
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SYNOPSIS... NEAR TERM... SHORT TERM... LONG TERM... AVIATION...
NWS ILN Office Area Forecast Discussion