The National Weather Service in Cleveland anticipates sweltering heat to grip parts of Ohio, with forecasted heat index values crossing into the triple digits. An approaching warm front heralds the high temperatures likely to necessitate Heat Advisories, particularly for Northwest and North Central Ohio, heading into mid-week. According to the National Weather Service’s Area Forecast Discussion, “Heat index values are forecast to surpass 100 degrees” as an upper-level ridge reaches the Great Lakes Region.