Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
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668 FXUS61 KILN 222309 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 609 PM EST Fri Nov 22 2024 .SYNOPSIS... The threat for showers will end tonight as low pressure moves farther east. Dry weather is expected Saturday and Sunday as high pressure takes over. Showers return on Monday with low pressure and a cold front. && .NEAR TERM /THROUGH SATURDAY/... Scattered to numerous rain showers are lingering in the brisk cyclonic flow behind low pressure centered over SE New York State. As the lake-enhanced showers track southeast, light amounts of rainfall will continue to be observed this evening, especially across eastern locations that will be closer to the center of the cyclonic forcing and moisture. For the overnight hours, as winds and lake influence gradually diminish, showers should exhibit a decreasing trend, with dry weather forecast by 6 am. Low temperatures in the upper 30s and low 40s will be above normal. && .SHORT TERM /SATURDAY NIGHT/... High pressure tracking across the SE CONUS is expected to provide dry weather Saturday and Saturday night. Clouds will persist during the daytime under a strong inversion, while decreasing moisture and sky cover could be observed Saturday night, though model differences lead to greater than average uncertainty regarding the cloud forecast. Though limited by the lack of sunshine, temperatures should reach the mid and upper 40s Saturday afternoon as a milder airmass moves in. Lows in the 30s are forecast for Saturday night. && .LONG TERM /SUNDAY THROUGH FRIDAY/... Low amplitude mid level ridge will translate east as a short wave moves from the northern Plains into the Great Lakes during the early part of the period. This will result in surface low pressure passing north of the region, but the trailing cold front crossing the area late Monday afternoon through Monday evening. Showers will occur out ahead of this front. It will be mild with above normal temperatures. Mid level flow will become zonal with surface high pressure tracking east across the area through mid week. The change in airmass will drop temperatures below normal. A short wave emerging out of the central Rockies on Wednesday will move eastwards across the country. There continues to be some spread in solutions regarding timing and amplitude of this system. But it still appears likely that this will result in low pressure passing across Tennessee and Kentucky Wednesday night and Thursday. The shield of precipitation north of the low track will move across the forecast area, possibly starting as early as late Wednesday, with the bulk of the precipitation Wednesday night and on Thanksgiving. Thermal fields are forecast to be warm enough for all rain, albeit a cold rain, in southern counties. There could be a mix of rain and snow further north in the forecast area, although precipitation amounts will likely be lighter in the colder air further away from the low track. In the wake of this system, a stronger short wave will be diving southeast into the Great Lakes. This combined with low level flow off of the Lakes will result in additional showers. Temperatures will be colder by that point, so snow showers will be more prevalent than rain showers. && .AVIATION /23Z FRIDAY THROUGH WEDNESDAY/... MVFR to occasional IFR ceilings will continue through the overnight hours. WNW winds are gusting well into the 20 knot range, which should remain the case through the 03Z-06Z time frame, before winds gradually begin to diminish heading toward morning. Light rain and drizzle will remain possible for the next few hours as well. Tomorrow, ceilings will be very slow to improve, and should remain MVFR (likely below 2kft) for the morning. By afternoon, some improvement is possible, and VFR conditions will likely develop by evening. OUTLOOK...MVFR conditions are possible Monday afternoon through Tuesday morning. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ SYNOPSIS...Coniglio NEAR TERM...Coniglio SHORT TERM...Coniglio LONG TERM... AVIATION...Hatzos