An extreme heat warning has been issued across Massachusetts, including Boston, where temperatures could soar to nearly 100 degrees, accompanied by a high heat index making it feel over 100 degrees. Residents are advised to prepare for a potentially dangerous heat wave from June 22 to June 24, as intense heat and humidity blanket the region. The Massachusetts Department of Conservation and Recreation (DCR) has opened state pools and cooling centers to help residents beat the heat. Meanwhile, thunderstorms are forecasted, bringing a mix of severe weather including the risk of tornadoes and hail. With the arrival of summer, the state is bracing for scorching temperatures and the possibility of severe storms to follow.