Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
618 FXUS61 KILN 110011 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 711 PM EST Mon Nov 10 2025 .SYNOPSIS... An unseasonably cold air mass in place across the region today will gradually moderate through the end of the week. Above normal temperatures are expected by the weekend. && .NEAR TERM /THROUGH TUESDAY/... Evening update--> Temps: Residual snowpack and PM clearing skies will allow for temperatures to drop well below blended guidance overnight tonight. As such, have trended grids colder tonight, dropping most areas down to the teens to around 20 degrees. Keep in mind that elevated winds around 10 MPH will allow for wind chills to fall into the single digits. Lake Effect: Northwesterly flow now in place across the region and radar returns indicate moisture being advected off of Lake Michigan down southeast toward western Ohio. Observation sites in northeastern Indiana indicate that some light snow is making it down to the surface. This stream will progress southeast, though there is some question as to how much moisture will actually make it down into our CWA. However, given cold temperatures and high SLRs, have bumped up snow totals a tad for counties north of I-70, though still keeping totals around 1/2 inch or less, with the greatest confidence in light accumulations for the far northwest (Mercer, Auglaize, Darke (these areas might get closer to 1 inch)). Will continue to watch and assess overnight via traffic cams and obs sites- for now, have covered with the HWO, though cannot rule out a SPS being needed if moisture transport looks to be more robust here in a couple of hours. Previous Discussion--> An enhanced band of snow continues to sag slowly south early this afternoon and is currently situated along and north of the Ohio River. The band has been weakening somewhat over the last hour or two and this trend will likely continue as it works south through the remainder of our area. Between this and the increase in solar insolation, additional snow accumulations will be limited outside of the heaviest snow band. Nonetheless, with air temperatures still near or just below freezing, will continue with the current Winter Weather Advisory into early afternoon. The snow should taper off through mid afternoon as some drier air continues to work in from the north. However, as the low level flow becomes more northwesterly heading into tonight, we will begin to see a fetch off of Lake Michigan set up across northern/western portions of our area overnight. This will lead to a chance of snow and some light additional snow accumulations. With temperatures dropping into the lower 20s overnight, this could lead to some additional slick spots on area roadways later tonight. && .SHORT TERM /TUESDAY NIGHT/... In northwest flow aloft, a weak mid level disturbance will drop quickly east-southeast across the region on Tuesday. Moisture is fairly limited with this feature but it will be tough to rule out a few light showers later Tuesday afternoon into Tuesday evening. Thermal profiles will be marginal for snow vs rain. As of now, it looks like any pcpn across our north will be mainly snow, while across our south, mainly rain. Highs on Tuesday will range from the mid 30s north to the lower 40s south. Lows Tuesday night will be in the low to mid 30s. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... Mid level ridging will build slowly east across the central CONUS through the end of the week as surface high pressure shifts slowly east across the Ohio Valley. This will lead to mainly dry conditions and a warming trend. Temperatures will trend several degrees warmer each day with highs by Friday back to near normal. Increasing southwest flow through the weekend will lead to above normal temperatures with highs Saturday and Sunday in the 60s. This will also bring an increase in moisture and developing isentropic lift, along with a chance of showers through the second half of the weekend. A chance for showers will then continue into Monday as a weak cold front sags slowly southeast into our area. Temperatures on Monday will be cooler with highs only in the 50s. && .AVIATION /23Z MONDAY THROUGH SATURDAY/... VFR conditions are in place across all terminals at the start of the period, however, a band of lake effect clouds and light snow will move down from Lake Michigan southeast toward the Ohio Valley this evening and into the overnight. This will primarily impact the northern sites (KDAY, KCMH, KLCK, and possibly KILN), so have added a brief period of PROB30 for snow showers accompanied by reduced visibilities and MVFR clouds. This band tapers off by Tuesday morning and we`re left with VFR conditions across the entire region, with westerly winds increasing to around 12 knots, gusting to 25 at times. Another disturbance will move across the region, bringing the chance for renewed snow showers during Tuesday afternoon and evening. OUTLOOK...No significant weather expected. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ SYNOPSIS...JGL NEAR TERM...JGL/CA SHORT TERM...JGL LONG TERM...JGL AVIATION...CA