"This is the Charm Blow, we are abandoning ship."
With that message -- delivered at 4:20 p.m. Sunday -- radio communication
between the boat and the Coast Guard went dead.
Since then, searchers have been scouring the waters off San Francisco for the
reported occupants of a 29-foot sailboat -- a couple, their 4-year-old child and
the child's cousin, who the Coast Guard said is younger than 8.
The man had called the Coast Guard an hour earlier to say that the boat had
begun taking on water and its electronics were failing, the Coast Guard said. At
that time, the boat was some 65 miles (105 kilometers) off Pillar Point, south
of San Francisco.
The four might have boarded a life raft, said the Coast Guard, which appealed
to the public for help Monday in identifying the missing seafarers.
"We don't have a lot of information to go on," Petty Officer Pam Boehland
told CNN. "All we know is that there were those four people on board and the two
young children, and we're hoping that there is still time to save them."
The focus of the search was 60 to 65 miles off Monterey Bay, said Lt. Heather
Lampert, a Coast Guard spokeswoman.
Several aircraft and vessels have joined the search.
Asked about the possibility that the report could be a hoax, given that no
one has come forward to identify a family as missing, the Coast Guard said that
it operates under the assumption that such reports are legitimate.
If the boat did not have a life raft, the chances of survival are slim, said
Mario Vittone, a recently retired Coast Guard helicopter rescue swimmer and a
marine safety specialist. "They're not going to live long, even in life
jackets," he said. "That's cold water out there."
According to the National Oceanographic Data Center, the water temperature
off San Francisco was 49.3 degrees Fahrenheit (9.6 C).
Marine accidents in waters below 50 degrees F are five times more likely to
end in death, Vittone said.
Computer models will factor in currents, weather and wind to create search
patterns to focus searchers' efforts, he said.
The search will continue until the four are found or until the limits of
survivability have passed, he said.