Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
895 FXUS61 KILN 092355 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 655 PM EST Sun Nov 9 2025 .SYNOPSIS... A strong mid level disturbance will cross the area late tonight into Monday. This will result in snow showers bringing the first light snow accumulations of the season. Unseasonably cold air will gradually moderate as the week progresses. && .NEAR TERM /THROUGH MONDAY/... During the early morning hours, the center of the shortwave will swing down through the larger flow dropping along the OH/IN border, through the Tri-State, advecting an area of deep layer moisture and stronger mid-level forcing across the region. This results in a quasi-zonal band of moderate snow showers that sag south through Ohio/ Indiana and into northern Kentucky through Monday morning hours. There is some concern that, due to this area of snowfall moving through during the overnight hours where diurnal heating is at a minimum, that light roadway accumulations may occur, particularly in west central Ohio. Snow will be moving into southern/Ohio northern Kentucky right around sunrise, which may mitigate the accumulation potential, but given the continued sub-freezing temperatures, opted to expand the Special Weather Statement south and a tad east through the CWA for the Monday morning commute. Since the strongest forcing appears closer to the OH/IN border, did not include central OH in the SPS at this time, though it may need to be expanded once evening guidance comes in. Meanwhile, want to make sure to note that temperatures will rapidly fall this evening, dropping from the mid 40s earlier this afternoon into the mid 20s by early morning bus-stop time. Previous Discussion--> Cold front will continue across the area moving off to the east before the end of the day. Some light rain showers are occurring along and ahead of this front. Temperatures make an initial drop in the wake of the front and then steady out for the rest of the daytime period. An initial surge of gusty winds with frontal passage lessens within a few hours. Cold air will continue to spill into the region overnight. Some very light disorganized snow showers will be possible during the evening. Strong mid level low over the western Great Lakes will bifurcate with one center translating into lower Michigan and the other dropping south across Illinois and making into southern Indiana by the end of the night. An east-west oriented surface trough will drop south into the area. There are some minor timing differences within the model suite, but somewhere in the vicinity of I-70 by daybreak. Snow showers will become more numerous as the surface feature moves into the area. Somewhat better mid level forcing will affect the western counties which will translate to higher precipitation amounts. So west central Ohio could get 1-2 inches with parts of central Ohio only around 1/2 inch. && .SHORT TERM /MONDAY NIGHT/... Southern mid level low will track southeast through central Kentucky, reaching the Appalachians by the end of the day. Northern low will translate to near Lake Erie. The east-west surface trough will continue to drop south, clearing the forecast area by mid to late afternoon. A further increase in coverage of snow showers will occur during the day with the closest approach of the mid level forcing as well as diurnal processes. Accumulations may end up at 1-2 inches for much of the area, although it is doubtful that much will ever be on the ground as melting will occur, especially once snow showers taper off. Clouds are forecast to break later in the day, so any insolation will add to the melting process. Main hazards are expected to be reduced visibility and some slick spots on roads, mainly bridges and overpasses. Secondary minor disturbance will drop down the back side of the deep upper trough as it translates eastward. This combined with northwest flow over Lake Michigan will likely bring another band of snow into the area Sunday night, primarily affecting west central and central Ohio. Any additional accumulation will be greater in the former, although probably less than 1 inch. This band will weaken and move east as the low level flow backs as ridging works in. && .LONG TERM /TUESDAY THROUGH SUNDAY/... Good consensus within the model suite with the mid level pattern through the rest of the week. Broad troughing over the eastern part of the continent will persist with a minor short wave crossing the Great Lakes Tuesday night into Wednesday. Once this short wave passes, the long wave pattern will become progressive with ridging working its way east. But then over the weekend there is a large dispersion of solutions with some members having an open trough moving east while others close off a low in the southwest which results in a much slower progression. In terms of sensible weather, this will be a dry pattern with any effects of the mid week short wave still forecast to stay north of the region. There is a wide range of possibilities over the weekend, especially on Sunday. There is a very low chance of some showers as a warm front lift north, but the timing of that is uncertain. Then if the more progressive solution occurs, there will be showers on Sunday while the slower solutions would keep the region dry. NBM averages that out as chance PoPs which reasonably addresses the uncertainty that far out in time. There will be a warming trend through the week, only stalled briefly by the passage of the midweek system. Temperatures will go from nearly 15 degrees below normal at the start of the period to around 5 degrees above normal by the weekend. && .AVIATION /00Z MONDAY THROUGH FRIDAY/... Light snow showers will continue to move through the region throughout much of the TAF period. Between this writing and midnight, visibility reductions associated with the snow should be MVFR. Guidance is fairly consistent in a stronger band of snow sagging from north to south sometime between 4AM and 10AM, depending on location. Snow rates will likely be a bit heavier, so VSBYs may drop to IFR (possibly even LIFR) as this band moves south. Snow should taper off by Monday early afternoon and VSBYs and CIGs will improve. Some suggestion that we may actually scatter out across the region, though some low level moisture will linger, so we`ll see if we actually scatter or whether we`re left with a BKN deck. Northwesterly flow will continue through the period, around 10 knots, with gusts up to 20 knots possible, particularly Monday afternoon. OUTLOOK...MVFR ceilings may linger through the rest of Monday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ SYNOPSIS... NEAR TERM... /CA SHORT TERM... LONG TERM... AVIATION...CA