tornadoes? >> we issued the warning a few minutes before 2:00, and it looks like within five to eight minutes, the tornado first touched down. and then it continued all the way across lee county to the alabama/georgia state line. >> we're told the national weather service is now sending three survey teams to this area. what does the work entail once you're on the ground? >> reporter: well, we want to first establish where the tornado first touched down. then we'll determine the path length and width. and we're going to look for the most significant damage in that track to determine the maximum strength of the tornado as it went through the area. >> all right. well, at this point is there still a threat out there? >> reporter: no. the threat has passed, fortunately. right now i understand there's a search and rescue continuing, ongoing at this point in time. and certainly our hearts and thoughts go out to the folks across that area affected by this devastating storm. >> no doubt about it. john de block, really appreciate it. we're going to stay on top of