May 28, 2013 - A small tornado touched down briefly on the south edge of Allen, South Dakota, about 14 miles northwest of Martin. It smashed a mobile home, tore the roof and several walls from a stick built house, and damaged roofs of several other houses. A survey by the National Weather Service estimated the winds were 105 to 110 mph based on the extent of damage.  The tornado was given a rating of EF1 on the Enhanced Fujita Scale ranking of zero through five.

House in Allen, SD destroyed by tornado

This house lost its roof and several walls collapsed. is the U.S. government's official web portal to all federal, state and local government web resources and services.