Monroe County, MS (WCBI)-Fast jets and cold air appear to have things shaking in portions of Monroe County. residents from Aberdeen to Hamilton today reported loud noises that rattled windows in part of the county. It looks like the noises could be sonic booms from training jets at the Columbus Air Force Base. A base spokesperson says training flights were taking place over Monroe County about the time the booms were heard. The base adds when the air is cold, the effect and frequency of sonic booms are increased because of the temperature.