tonight, several breaking headlines as we come on the air. the category 4 hurricane bearing down on the u.s. at this hour. winds up to 145 miles per hour. this is an extremely dangerous cat 4 storm, only a few hours from landfall. authorities tonight warning of, quote, unsurvivable storm surge. blinding rain and winds already, mass evacuations under way as time now runs out. families trying to find shelter in the middle of a pandemic. authorities concerned about too many families staying put, trying to ride this out. louisiana's governor tonight activating the entire national guard. meteorologists ginger zee and rob marciano, both live in the storm zone tonight with the latest track and timing. also developing as we come on, chilling images on the streets of kenosha, wisconsin.