Despite unusually calm weather, searchers have exhausted any area Jim Gray could have drifted or sailed after leaving for a solo sailing trip Sunday to scatter his mother's ashes at sea, a Coast Guard spokesman said.
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Searchers have covered 40,000 square miles from Monterey Bay to Oregon and more than 140 miles out to sea but have found no trace of the longtime sailor.
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Coast Guard spokeswoman Lt. Amy Marrs called Gray's disappearance a mystery because the weather was good, he was in good health and the boat was equipped with radios, flares and an emergency beacon.