


Area Forecast Discussion
Issued by NWS Cleveland, OH
Issued by NWS Cleveland, OH
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817 FXUS61 KCLE 100003 AFDCLE Area Forecast Discussion National Weather Service Cleveland OH 803 PM EDT Wed Jul 9 2025 .SYNOPSIS... A low pressure system will track through the eastern Great Lakes tonight and will drag a weak cold front through the area by Thursday morning. This front will stall out across the southern Great Lakes region through the end of the week. By Saturday, this weak frontal boundary will lift back northward ahead of a stronger low pressure system that will track through the Upper Great Lakes. && .NEAR TERM /THROUGH THURSDAY NIGHT/... The main message for this afternoon forecast update is that our weather pattern will bring more summertime warmth and humid conditions through this weekend into next next week. The forecast will also have scattered chances for a few rain showers and storms off an on over the next 5 to 7 days with several weak weather systems as well. We will outline those possible rain chances and the timing throughout this discussion. Currently, there is a broad upper level trough over the Great Lakes region down into the Ohio Valley region that will advance eastward overnight. At the surface, there is a weak area of low pressure over Lower Michigan that will track through the eastern Great Lakes tonight and into Thursday morning. There is also a weak cold front that is slowly drifting southeastward through the central and lower Great Lakes this evening and overnight. South of this weak front, the airmass has plenty of low and mid level moisture for the development of convection. There are a couple limiting factors that is not ideal for more coverage of convection. The wind shear is somewhat weak for organization. Also the forcing mechanism is also weak to get more focus or coverage of storms. With that said, there is just enough instability and moisture to see some scattered showers and thunderstorms possible through this evening. By sunset or shortly after, most of the rain chances will fade away into the late evening hours. That weak cold front will slide down tonight and stall out across our area by Thursday morning. This boundary will end up stalling out near the southern lakeshore of Lake Erie or northern Ohio into NWPA on Thursday. Along and south of the weak frontal boundary will be the area that will have the chance for scattered showers and storms again Thursday afternoon. That area will generally include south of the Ohio Turnpike into central Ohio as well as northeast Ohio and NWPA. POPs on Thursday will be 30 to 40 percent. There severe weather threat will remain low due to limiting factors but an isolated stronger storm with gusty winds can`t be ruled out. Due to the slow weak steering flow, some of these showers and storms may move slowly and could produce some localized heavy rainfall too. The convection on Thursday will be mainly diurnal driven and the POPs will drop off around sunset in the evening. && .SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/... The upper level pattern will flatten out and become more zonal with a couple weak mid level disturbances riding along in the flow Friday into Saturday. That weak boundary will still be somewhere nearby over the Upper Ohio Valley and lower Great Lakes on Friday. We will continue to have slight to chance POPs during the midday and afternoon on Friday, but areas will not see rainfall. Temperatures will be in the middle to upper 80s over the next couple of days which is near or just a touch above our seasonal averages for the middle July. A slightly stronger shortwave trough will track across the northern Plains region into the western Great Lakes late Saturday. This mid level shortwave will push the boundary northward out of our area on Saturday. We will also see a push of warmer air with temperatures climbing back into the upper 80s and lower 90s Saturday afternoon. Another weak cold front will make a run down into our area Saturday night with a better setup for scattered to likely coverage of showers and some storms. Once again, this cold front may end of slowing down or stalling out nearby into Sunday which will bring additional chances for scattered convection. && .LONG TERM /SUNDAY THROUGH WEDNESDAY/... The weather pattern and overall expectations going into early next week will continue with the very warm temperatures and humidity. Model guidance favors a stalled frontal boundary possibly near our area or across the Ohio Valley region to start off the next week. That will also include additional chances for scattered, diurnal convection. There is some indication that a upper level ridge may briefly move into the Ohio Valley by Tuesday or the middle next week with lower rain chances and a temperatures slightly warmer too. && .AVIATION /00Z Thursday THROUGH Monday/... VFR conditions are present across the terminals this evening as the bulk of the rain and thunder is out of the immediate area and the few remaining cells are missing the terminals. A mix of low to mid level VFR clouds will filter through the region with ceilings eventually transitioning to just mid-level clouds or just some high cirrus. For overnight, there remains some fog potential for all of the sites except for KCLE and KERI where the little bit of clouds and south to southeast flow should keep them in the clear. Some better moisture remains in Northwest Ohio, where several rounds of scattered showers and storms occurred earlier today, and this should allow for the possibility of some IFR conditions at KTOL and KFDY. Elsewhere, there is less certainty on IFR and have just continued some variety of MVFR fog mentions. The front the has plagued the region will return southeast through the airspace on Thursday and should generate another round of scattered showers and storms. The best candidates for any impacts from TS will be KMFD, KCAK, and KYNG and have mentioned some TS and MVFR potential in a PROB30 group. There is low confidence on coverage and timing to go with anything higher at this time. Winds will be shifting to the south tonight, mainly below 6 kt. Winds will shift to the west then northwest with the frontal passing back southeast on Thursday. Outlook...Non-VFR possible late Saturday into Sunday in showers and thunderstorms as cold front moves east across the region. && .MARINE... With the exception of thunderstorms this afternoon, winds on Lake Erie are generally expected to be 10 knots or less through Friday. Winds may briefly increase to 10 to 15 knots and shift towards the west late Saturday into Sunday as a cold front moves across the lake. This could usher in 2 to 3-footers across the central and eastern basin of Lake Erie Sunday afternoon and evening. Chances for thunderstorms increase across Lake Erie on Saturday into Sunday which could usher in some gustier winds. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && $$ SYNOPSIS...77 NEAR TERM...77 SHORT TERM...77 LONG TERM...77 AVIATION...Sefcovic MARINE...Kahn