Apparently their vessel was a 23 foot catamaran. Not much more detail, but, another article on the topic: 3 Rescued off Texas coast

It would be interesting to hear what they might have tried to get noticed. I wonder what they had aboard to signal, communicate? (Apparently not much, or perhaps it was lost overboard?)

Maybe we'll get more info in the coming days, at least it was a rescue instead of a recovery.