KEY WEST, Florida — Diana Nyad slogged across the Straits of Florida for a third straight day Monday, advancing toward a swimming record on calm seas after enduring a night of stormy weather.
Nyad, who turns 63 on Wednesday, is making her third attempt since last summer to become the first person to swim from Cuba to Florida without a shark cage. She also made a failed try with a cage in 1978.
"She's doing well," a spokeswoman for the swimmer, Alex Crotin, said Monday afternoon.
Nyad had been expected to arrive somewhere in the Florida Keys early Tuesday, though her team didn't say how much overnight storms Sunday might delay her.
Her team tweeted that a storm had blown Nyad off course and that "all hell broke loose" in the squall.
Monday appeared to be offering far more ideal conditions, with blue skies and level seas.
Nyad's team tweeted Monday morning that she was "swimming strong" in calm seas at 50 strokes per minute. She hit the 48-hour mark in the water on Monday afternoon; she estimated it would take at least 60 hours to reach Florida.
Australian Susie Maroney successfully swam the Straits in 1997, but she used a cage. In June, another Australian, Penny Palfrey, made it 79 miles (127 kilometers) toward Florida without a cage before strong currents forced her to abandon the attempt.