Seventeen people, including at least one child, are dead after an amphibious duck boat capsized Thursday evening on Table Rock Lake.
Hundreds gathered Friday night on the shore of Table Rock Lake in Missouri to honor the lives of the 17 people killed when a duck boat sank in rough waters the night before.
A microburst is a severe, localised wind gust, blasting down from a thunderstorm, typically covering an area less than 4km in diameter and lasting less than five minutes.
The NTSB - which is now investigating Thursday's incident in Missouri - said duck boat operators should be required to use boats that "remain upright and afloat in a fully flooded condition" and to remove canopies or install a "Coast Guard-approved canopy that does not restrict either horizontal or vertical escape by passengers in the event of sinking". The report said that passengers - due to their natural buoyancy, especially if they are wearing life jackets - can become trapped against the canopy as the vessel sinks, unable to swim down to openings along the side.
Ripley Entertainment, the parent company of Ride the Ducks Branson, said it recently acquired the vessel involved in the incident.
"He'd talk to anybody", his widow, Judy Williams, said Friday in a phone interview. They were there for a church convention when they chose to take a duck boat tour on Table Rock Lake.
The duck boats - which can drive on land and also go in the water - are a common site in tourist destinations but there have been a number of deaths involving the vehicles over the years. A video of the incident showed it battered by waves.
"I look at my family here, and this could've been us", Ed Brown, who was at the vigil, told CNN affiliate KMIZ. But Mongeluzzi says the "fatal flaw" of duck boats - their canopies - remains unchanged despite findings that show they can be hazardous when sinking.More news: China Files Challenge to WTO After Tariff Threats
The mayor identified the crew member operating the boat as Bob Williams, known informally as "Captain Bob".
Another video was captured by a passenger inside the other duck boat, which made it safely to shore.
"Ride the Ducks will be closed for business while we support the investigation, and to allow time to grieve for the families and the community", it added.
"When we first went into the water, it was calm", he recalled.
The company that builds ducks, Ride the Ducks International LLC, agreed in 2016 to pay a $1 million fine after one of the vehicles collided with a bus in Seattle, killing five international students. "We eventually did pull her up onto the boat", Behr said.
After all 17 bodies were recovered, the Stone County Sheriff's Office released the names of those who died.
The family plans to pray for the victims at their church service.
It is believed the boat sunk in 40 feet of water, rolled down in the lake and landed on its wheels in 80-feet-deep lake water.