Hot weather advisory: be prepared
Monica Funk, from the Blake Fitness Center, posts a black flag outside the building July 21, 2014, at Keesler Air Force Base, Miss. Flags are posted outside each of the base fitness centers and the south side of the Levitow Training Support Facility to indicate heat levels throughout the day. (U.S. Air Force photo by Kemberly Groue)

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Photo by: Kemberly Groue |  VIRIN: 140721-F-BD983-028.JPG