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Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
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062 FXUS61 KILN 222321 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 621 PM EST Sat Feb 22 2025 .SYNOPSIS... High pressure will bring dry weather and a slow moderation of temperatures this weekend. Several chances for light precipitation return by the middle of next week as a warmer weather pattern develops. Slightly above normal temperatures are expected by midweek. && .NEAR TERM /UNTIL 6 AM SUNDAY MORNING/... West-northwest mid level flow with an embedded shortwave tracking thru the Eastern Ohio Valley. Vanguard mid and high level clouds cover Southern Ohio and Northern Kentucky will continue to thin out as the shortwave departs the area. Expect mostly clear skies overnight with only some thin high level clouds spilling in from the northwest. Temperatures tonight drop to lows from the upper teens to around 20 degrees. Southwest winds will decrease to less than 10 mph. && .SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/... West-northwest flow with a weak mid level shortwave dropping from the Upper MS Valley across the Great Lakes Sunday. Mid and high level clouds - thickest across the north will spill across the area Sunday. Temperatures will slowly warm up with highs ranging from the mid/upper 30s northwest to the lower/middle 40s southeast. In the fast flow mid and high level clouds to decrease Sunday evening as a weak shortwave departs the area and then increase again late ahead of another shortwave moving into the Great Lakes. Pressure gradient tightens up keeping winds up around 10 to 15 mph overnight. Temperatures will be milder with lows from the middle to upper 20s. && .LONG TERM /MONDAY THROUGH SATURDAY/... The overall longwave pattern to start the extended period will consist of a low amplitude ridge over the Rocky Mountain States with troughing across the Eastern Seaboard. Between these two systems, brisk west-northwesterly flow aloft will offer several fast-moving disturbances through the Great Lakes and Ohio Valley. However, of note is an overall lack in deep moisture advection into the region. This will result in limited opportunity for significant weather impacts. On Monday, southwesterly boundary layer flow will bring well above normal temperatures. A disturbance will race through the Great Lakes late in the day through the overnight, with a slight chance of rain across the north closest to the shortwave. A slightly stronger system will accompany a cold front late Wednesday into Thursday. Chances for rain are a bit higher for this system, with colder (but still above normal) air filtering in behind the front on Thursday. High pressure appears to briefly build across the region Friday, with southerly flow returning to start next weekend. The longwave pattern is trending more amplified by Saturday, with warm advection bringing temperatures back to well above normal levels. && .AVIATION /23Z SATURDAY THROUGH THURSDAY/... VFR conditions are expected through the TAF period. Under a west to northwest mid level flow aloft, some weak embedded mid level disturbances will bring mid and high clouds to the region from time to time. Meanwhile, surface high pressure will remain stretched across the Tennessee and Ohio Valleys. Southwest winds tonight between 5 and 10 knots will become more southerly on Sunday between 8 and 12 knots. There could be some occasional gusts between 15 and 20 knots near the northern terminals. OUTLOOK... MVFR conditions possible Tuesday and Wednesday. MVFR ceilings possible Thursday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ SYNOPSIS...AR NEAR TERM...AR SHORT TERM...AR LONG TERM... AVIATION...AR