


Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
534 FXUS61 KILN 211019 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 619 AM EDT Thu Aug 21 2025 .SYNOPSIS... Seasonal temperatures are expected Friday and Saturday, with dry conditions. On Sunday, a much cooler airmass arrives to the region and temperatures will be well below average through the working week. && .NEAR TERM /THROUGH TONIGHT/... Mid level ridging and surface high pressure continue to build into the region on Thursday, continuing dry conditions. While Hurricane Erin is well out in the Atlantic, its presence will help tighten our pressure gradient, promoting northeasterly flow at the surface sustained around 10 MPH with some 15 MPH gusts possible during the afternoon hours on Thursday. There is a weak signal for some isolated afternoon showers coming off of the Lakes for west central/ central Ohio, but confidence is not high enough to include in the grids at this point in time. Morning clouds will slowly dissipate throughout the day, becoming more scattered by the late afternoon/evening. High temperatures reach the mid 80s in northern KY/central OH and upper 70s along the OH/IN border. && .SHORT TERM /FRIDAY/... Thursday night remains quiet and dry, with overnight low temperatures falling to the low/mid 60s. The mid-level ridge continues to push east into the Ohio Valley region, allowing temperatures to tick up slightly, reaching the upper 80s along the Ohio River, low/mid 80s along I-70. Thursday`s clouds will have cleared out and Friday will be mostly sunny, with some passing cumulus. && .LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/... Mid-level shortwave will push through the Great Lakes this weekend, with a cold front shifting through the middle Ohio Valley Saturday night into Sunday. A brief period of southwesterly flow ahead of the front on Saturday will likely not be enough to pull deeper moisture into the region, so most areas will remain warm and dry to start the weekend. Cooler and drier air will slowly build in behind the front Sunday into Monday. Below normal temperatures will persist into at least mid-week as the mid-level trough remains anchored over the Great Lakes and Northeast. There could be periods of mostly cloudy skies as reinforcing disturbances rotate into the trough. Since timing is uncertain at this juncture, will keep mostly clear skies in the grids for now. && .AVIATION /10Z THURSDAY THROUGH MONDAY/... The region continues to be overspread by a MVFR cloud deck, with patchy IFR moving through. CIGs will slowly improve as the morning hours progress, becoming a BKN VFR deck by late afternoon hours, eventually scattering out. Northeasterly flow continues today, around 10 knots a stronger afternoon gust possible. A stray shower is possible at CMH and LCK, though confidence is low so did not include in TAFs. After clouds scatter out, overnight conditions remain quiet and dry. There is once again a signal for patchy fog development, though have held off including in the TAFs at this time. Northeasterly flow continues, at less than 5 knots. OUTLOOK...No significant weather is expected. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ SYNOPSIS...CA NEAR TERM...CA SHORT TERM...CA LONG TERM... AVIATION...CA