People have survived for weeks in a life raft - with good emergency supplies. However, because the salt-water-activated EPIRB did not go off, it's probable she's still in the boat.

"Abby has all of the equipment on board to survive a crisis situation like this. She has a dry suit, survival suit, life raft, and ditch bag with emergency supplies. If she can keep warm and hang on, help will be there as soon as possible. Wild Eyes is designed for travel in the Southern Ocean and is equipped with 5 air-tight bulkheads to keep her buoyant in the event of major hull damage. It is built to Category 0 standards and is designed to self-right in the event of capsize."
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Verum audaces non gerunt indusia alba. - Ipsi dixit MCMLXXII