With at least 142 people dead in Missouri after a tornado struck in Joplin, Mo., last week, 2011 has become the deadliest year for tornadoes in the U.S. in six decades, according to media reports.
The 2011 death toll is now at 520; the previous record was 519 in 1953, according to the Associated Press.
There is a chance that the 2011 figure could still rise. There are at least 105 people missing still in Missouri.
(PICTURES: Tornado Aftermath in Joplin, Mo.)