The National Weather Service in Cleveland has forecast a fluctuating weather scenario for the region that includes thunderstorms and a significant rise in temperatures. As the weekend progresses, a weak cold front approaches from the northwest and is expected to dissolve on Monday, which will then usher in hotter and more humid conditions. Ohioans can expect the heat index to rise well into the 90s this afternoon, with a potential of isolated values nearing 100 degrees.
Today's atmospheric instability will contribute to "intermittent shower and thunderstorm chances," a potential for "locally heavy rain and isolated severe weather," as per the National Weather Service. The Service also mentioned that it "will not rain all day or night by any stretch, but much of the area will see it at some point." A more well-defined shortwave is expected to influence neighboring states before contributing to the precipitation over northern Ohio in the evening into tonight. With moisture-laden low-level jets in play, particularly in areas east of Lake Erie, there are hints of excessive rainfall, which could result in isolated flash flooding.
Looking forward to the start of the week, a "stronger cold front" is anticipated to swing by Tuesday into Wednesday. The cold front on Sunday will see a sagging motion, initiating showers and storms especially across Lake Erie, and into Northeast Ohio and Northwest Pennsylvania. The heavy rain potential continues into early Sunday with the frontal movement.
Transportation could get impacted with reduced visibility as "Non-VFR possible through Sunday in scattered showers and thunderstorms with a frontal boundary lingering in the area," according to NWS, an aviation update. The front's effects resonate on Lake Erie too, with expected wave heights reaching 1-2 feet by Sunday morning. Boaters might need to brace for increased onshore winds estimated between 10-15 knots by the end of the week, which could amplify waves to the 2-3 feet range.
As the work-week commences, the disbanded Sunday cold front relents to a "surge of hot, humid air from the south-southwest" before the predicted Tuesday precipitation. Despite some uncertainty surrounding the volume and timing of early-week thunderstorms, the forecast suggests that "heat headlines are possible on Monday," and by Tuesday, conditions may edge towards needing similar precautions, especially in the southern regions of Ohio.
