There were no reports of fatalitiesor injuries and investigators have not determined how many boats sank on the lake near Austin, according to sheriff's spokesperson Kristen Dark.
Dark said the cause was under investigation, but there was no indication of an intentional act.
"We have no reason to suspect foul play in any of these," sinkings, Dark said.
Swamped boat near Emerald Point as hundreds of boats parade for President Donald Trump, at least three craft swamped with no injuries reported #statesman@bobphotopic.twitter.com/eY3yyAXvyp
Dark said weather conditions were generally calm and meteorologist Paul Yura with the National Weather Service in Austin/San Antonio said there were were no storms in the area at the time and winds were generally 16km/h or less.
"The lake should be fairly navigable, without issue at those wind speeds," according to Yura.
Lake Travis is an approximately 7,689 hectares impoundment about 19km northwest of Austin.
