- Crews dig through night after deadly Okla. twister AP - 1 hour 11 minutes ago
- Frenetic search for survivors as 91 feared dead in tornado-hit Oklahoma Reuters - 4 minutes 0 seconds ago
- More tornadoes in forecast for central US Tuesday AP - 2 hours 2 minutes ago
- AP photographer describes destroyed Okla. school AP - 1 hour 16 minutes ago
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Spring sprung early in 2012, breaking records across the lower 48 states, a new study finds.