Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
029 FXUS61 KILN 280604 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 204 AM EDT Mon Sep 28 2026 .WHAT HAS CHANGED... No significant changes. && .KEY MESSAGES... 1) A gradual warming trend is expected this week, with rain chances returning late in the work week. && .DISCUSSION... KEY MESSAGE 1) The Ohio Valley continues to remain under the influence of surface high pressure to start the week. The closed upper low along the Atlantic Coast becomes absorbed back into the mean H5 flow and gets carried off. This feature was originally causing a blocking pattern, keeping similar forecast conditions across the ILN fa the past few days. However, as the low gets carried off, subtle H5 ridging develops over us and will result in a warming trend through the work week. Majority of our CWA will have highs back in the 80s by Wednesday. Global models and ensembles have continued to show a signal for a wetter end to the week as an H5 trough and associated low track through the central CONUS, eventually ushering some of that moisture our way. However, there has been a slower trend in the arrival of precip chances, with Thursday now trending drier during the daytime hours. Rain chances gradually increase as we progress into the weekend with the eastward propagation of the low. && .AVIATION /06Z MONDAY THROUGH FRIDAY/... Mainly river valley fog and associated vsby impacts are expected this morning at KLUK. However, some guidance suggests overland fog could develop near central OH, so included a TEMPO MVFR vsby mention at KCMH/KLCK. Mostly clear skies continue through the taf period, with mainly just some passing cirrus. Could see more overland fog develop Monday night, which could impact more terminals than just KLUK. OUTLOOK...MVFR/IFR conditions are possible Thursday night into Friday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ DISCUSSION...Clark AVIATION...Clark