


Area Forecast Discussion
Issued by NWS Cleveland, OH
Issued by NWS Cleveland, OH
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223 FXUS61 KCLE 041900 AFDCLE Area Forecast Discussion National Weather Service Cleveland OH 300 PM EDT Fri Jul 4 2025 .SYNOPSIS... High pressure will persist across the area into Saturday. A cold front will approach the region from the west on Sunday into Monday, followed by another area of high pressure for Tuesday. A stationary boundary to the south will begin to lift north on Wednesday. && .NEAR TERM /THROUGH SATURDAY NIGHT/... Main concern for the near term period will be the potential for afternoon and evening showers and thunderstorms. For the rest of today, the area of interest is across far Northwest Ohio (Toledo vicinity). For Saturday afternoon and evening, the area of interest will be further east across Northeast Ohio and Northwest Pennsylvania. For the shower and thunderstorm potential the rest of today, main focus will be along an outflow boundary laid out by nocturnal convection towards the west across Northwest Ohio and southern Michigan. Already starting to see some agitated cu develop along this outflow boundary this afternoon with the highest thunderstorm chances in the Toledo area expected between 6 to 8 PM. Although severe weather is not expected, can`t rule out heavy rain and gusty winds around 40 mph with any stronger storms. Precipitation chances further south and east will be limited due to drier air to the east ahead of a warm front and subsidence resulting from high pressure across the Ohio Valley to the south. For Saturday afternoon and evening, the warm front will continue lifting northeast through the area, in addition to a lake breeze developing across the eastern lakeshore. Surface convergence and increased low-level moisture should result in isolated to scattered shower and thunderstorms, mainly in the afternoon and evening hours across far Northeast Ohio and Northwest Pennsylvania. Once again, not anticipating any severe weather, though certainly can`t rule out brief bursts of heavy rain with any stronger storms. Above-average temperatures are expected behind the warm front for Saturday with heat indices increasing into the mid-90s. && .SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/... Main concern for the short term period will be tracking an eastward- advancing cold front for late Sunday into Monday. The atmosphere will be primed for torrential rain with PWATs approaching 2.0 inches Sunday night into Monday. Although southwest mid-level flow isn`t particularly strong (20 to 25 knots), certainly can`t rule out a stronger storm or two, especially late Sunday afternoon or evening across Northwest Ohio when diurnal favorability will be at its highest. For Monday, there remains timing differences on the cold front progression east and southeast through the area. At this time, it appears the best chances for additional afternoon and evening showers and thunderstorms in the vicinity of the front would be across the south and southeast portion of the area closer to the US- 30 corridor. Once again, torrential rainfall would be the main threat with PWATs approaching 2.0 inches. Above-average temperatures will continue for Sunday with heat indices peaking in the mid to upper 90s and perhaps a few isolated spots briefly reaching 100 degrees. Although cooler on Monday in the 80s, it will continue to feel muggy with dew points around 70 degrees. && .LONG TERM /TUESDAY THROUGH FRIDAY/... Model guidance continues to trend towards a dry forecast for Tuesday as the cold front moves just to the south of the area while high pressure builds across the Great Lakes to the north. HOwever, a more unsettled and wet forecast is becoming favored for Wednesday and Thursday as the front stalls across the Ohio Valley and will gradually lift north on Wednesday into Thursday. Much of this activity will be focused around the front, particularly in the afternoon and evening hours with little overall upper-level forcing present. Seasonable to slightly above-average and humid weather is expected for the long term period with daily highs in the mid to upper 80s. && .AVIATION /18Z Friday THROUGH Wednesday/... Aloft, W`erly to NW`erly flow and embedded disturbances affect our region through 18Z/Sat as a ridge builds from the Upper Midwest. At the surface, the ridge exits slowly SE`ward and will allow a warm front to sweep N`ward through our region between ~06Z/Sat and ~12Z/Sat. Primarily VFR and fair weather are expected through the TAF period. However, residual outflow from thunderstorms that have since dissipated over/near southern Lake Michigan may trigger isolated showers and thunderstorms over/near the MI/OH border in our region between ~20Z/Fri and ~00Z/Sat. This includes KTOL. These storms may produce brief and erratic surface wind gusts up to 30 to 50 knots. In addition, a cluster of showers and thunderstorms should develop ahead of one of the aforementioned disturbances aloft this evening, persist generally E`ward across much of Lake Erie tonight, and impact far-NE OH and NW PA between ~08Z/Sat and ~14Z/Sat. This includes KERI. Showers and storms should be accompanied by brief MVFR to IFR. Outside of showers and thunderstorms, our regional surface winds trend variable in direction and around 5 knots through ~12Z/Sat. However, N`erly to NE`erly surface winds around 5 to 10 knots and associated with a Lake Erie lake breeze are expected to impact KCLE and KERI until ~00Z/Sat. After ~12Z/Sat, our regional surface winds are expected to become S`erly to SW`erly around 5 to 10 knots. However, after ~14Z/Sat, the development of another Lake Erie lake breeze should cause these winds to veer to WSW`erly along and within several miles of the lakeshore, along and roughly east of the longitude to KBKL. Outlook...Non-VFR possible with isolated to scattered showers and thunderstorms on Saturday through this Wednesday, especially during the afternoon and early evening hours of each day. && .MARINE... Waves of 3 feet or less and wind speeds of 5 to 15 knots are expected on Lake Erie through this Wednesday. A high pressure ridge exits slowly SE`ward from the Lake Erie region through Sunday, which will allow a warm front to sweep N`ward across Lake Erie tonight. A lake breeze will dissipate early this evening and give way to primarily E`erly to SE`erly winds, which will then veer to S`erly to SW`erly overnight tonight with the warm front passage. Primarily S`erly to SW`erly winds then persist through Sunday as Lake Erie remains along the northwestern flank of the departing ridge. SW`erly winds should veer gradually to N`erly during Sunday evening through Monday evening as a cold front drifts SE`ward across the lake and is followed by another ridge building from the Upper Midwest. Winds should become variable in direction on Tuesday through Wednesday as the aforementioned ridge eventually exits E`ward and a weak trough begins to overspread Lake Erie from the west on Wednesday. Winds should trend onshore during the late morning through early evening hours of Tuesday and Wednesday due to lake breeze development. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && $$ SYNOPSIS...Kahn NEAR TERM...Kahn SHORT TERM...Kahn LONG TERM...Kahn AVIATION...Jaszka MARINE...Jaszka