9Nik Wallenda's Niagara Falls High-Wire Walk: Live Blog Credit: Ida Mae Astute/ABC 9:44 p.m.: Bill Weir is with some of the tens of thousands of people who have turned out to watch Nik's historic attempt. 9:39 p.m.: Nik Wallenda is preparing for his walk and putting his harness on. 9:38 p.m.: The wind is picking up. According to Sam Champion's weather infographic, it's now a 9 MPH. 9:36 p.m.: It's a weird weather pattern tonight which could make Nik's walk harder. Yikes. According to Sam Champion, the hardest thing is the swirling wind pattern. Nik will actually be able to see this as he walks over the falls. 9:29 p.m.: The heel is the part of the foot most sensitive to vibration. And one of Nik's biggest challenge is that humans are top heavy. Who knew? 9:28 p.m.: Less than 45 minutes to go! 9:21 p.m.: Bill Weir touches the wire says, "It gives you the heebie jeebies feeling this thing move like a living creature in your hands right there. Right there is the path Nik will take. Check out this pic of his path. 9:20 p.m.: @JoshElliottABC Yes...no one sneaks in.... RT @olympicfan68 Josh, will a Canadian customs official meet him when he gets off the wire on the Canadian side? 9:18 p.m.: Nik's wife says, "We are normal people. We just have really dangerous jobs. 9:17 p.m.: Nik was raised on the wire. Check out his family history here. 9:15 p.m.: Bill Weir admits to Hannah Storm that he "loves being up here." 9:08 p.m.: Even Robin Roberts is watching the show. @RobinRoberts tweets: Watching my @GMA bros, @SamChampion & @JoshElliottABC..about an hour until @NikWallenda #WalkTheWire..I'm already holding my breath! 9:05 p.m.: Woah. Josh Elliott mentions that at Horshoe Falls where Wallenda will walk there are more than 700,000 gallons of water falling 200 feet down at upwards of 70 mph. 9:03 p.m.: Sam Champion is (wet and) monitoring the weather conditions over the Falls. It is wet. It is windy and we're not even there yet. As of right now, the temperature is 67 degrees, humidity is 87% and winds are 4 MPH but can gust up to 19 MPH. Get the latest weather conditions at the Falls here. 9:02 p.m. EST: Bill Weir is live on the U.S. side where Wallenda will start his walk. He recalls a famous line from Nik Wallenda's great grandfather, Karl: "Life is on the wire. Everything else is just waiting. Nik has waited 27 years for this opportunity and we're just over an hour away. 9 p.m.EST: There's just a little over an hour left till Nik Wallenda starts his historic walk across Niagara Falls. And we're live with the countdown! Josh Elliot and Hannah Storm are live on the Canadian side of the Falls where Wallenda will finish his walk.