NEW : Heat exhaustion kills man in Kentucky . The longer the heat wave lasts , the greater the dangers , meteorologist says . Severe storms are expected Friday in the Midwest , Saturday in the Northeast . New York City is expected to have a heat index of 103 Thursday . Comment:
NEW : Heat exhaustion kills man in Kentucky . The longer the heat wave lasts , the greater the dangers , meteorologist says . Severe storms are expected Friday in the Midwest , Saturday in the Northeast . Comment: