


Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
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955 FXUS61 KILN 172311 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 711 PM EDT Sun Aug 17 2025 .SYNOPSIS... A warm and humid airmass will support isolated showers and storms at times through Tuesday. A cold front dropping south through the region Wednesday offers more widespread storm coverage. Above normal temperatures are expected through midweek, with drier and slightly cooler conditions for the second half of the workweek. && .NEAR TERM /THROUGH MONDAY/... Mid level ridge remains centered to our west over the nations mid section with northwesterly flow across ILN/s area. ILN/s FA remains between systems with remnants of an MCS dropping sse thru southern Indiana into a region of more favored instability and a shortwave tracking thru the eastern Great Lakes. Latest mesoanalysis shows a front over northern Ohio with CIN over southern Ohio/northern KY. Isolated thunderstorm development will be possible - especially across the north closer to the frontal boundary initially and then into the south later in the day. Any diurnally driven storms will dissipate quickly early this evening due to the lack of strong forcing. Surface front slips south thru the area overnight with low temperatures ranging from the lower 60s north to near 70 south. && .SHORT TERM /MONDAY NIGHT/... Mid level ridge centered over the nations mid section begins to build a little north into the lower Ohio Valley Monday. Slight drier air looks to be in place in the wake of the front. Expect the area to remain dry with abundant sunshine thru Monday. Trend continues with data suggesting max heat indices in the mid/upper 90s over the south staying below critical thresholds. High temperatures to range from the lower and middle mid 80s in central Ohio to around 90 degrees in the southwest. Model solutions agree keeping convection to our northwest with only some debris clouds spilling into the area Monday night. Low temperatures range from the upper 50s far north-northeast to the mid/upper 60s southwest. && .LONG TERM /TUESDAY THROUGH SUNDAY/... Relatively dry east to northeast flow will become southwesterly on Tuesday, bringing a return to near 70 degree dewpoints. This will occur as a cold front shifts southeast toward the Ohio River Valley late in the day. Latest guidance times the front to arrive Tuesday night. Will stay with a chance of showers and storms in the warm and humid air mass ahead of the boundary from Tuesday afternoon through the night. Behind the front, weak high pressure will build across the Upper Midwest through the Upper Great Lakes Wednesday through Friday. Can`t rule out a shower or storm Wednesday across northeast Kentucky in the proximity of the remnant front... but otherwise expecting mostly sunny and dry conditions with near-normal late August temperatures. The ridge-west-trough-east pattern will be reinforced this coming weekend as another cold front pushes through the region. This will likely usher in below normal temperatures to close the period on Sunday. && .AVIATION /00Z MONDAY THROUGH FRIDAY/... Isolated afternoon thunderstorms are dwindling this evening and we should be left with quiet overnight conditions. Winds currently out of the northwest will become northeasterly during the early overnight hours after a relatively dry cold front passes through. Some sites may have patchy fog development, particularly the more rural areas. Have kept a TEMP MVFR for VSBY during early morning hours at KLUK and KILN. KLCK is also a possibility, but confidence isn`t as high, so did not fog them with this TAF set. Any fog dissipates after sunrise and northeasterly flow continues with FEW to SCT diurnal CU. OUTLOOK...Thunderstorms are possible Tuesday and Wednesday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ SYNOPSIS...AR NEAR TERM...AR SHORT TERM...AR LONG TERM... AVIATION...CA