I live near a major National Guard base. Years ago they took over our old regional airport. Point is they travel back and forth between the two and this morning they were carrying such huge loads that they accidentally took down the power lines. Not sure what's up. Also they do practice maneuvers in the woods near my home, major gunfire out there all morning. This is in the Central Louisiana area.
Just saw your post. I live in MS - close enough to Camp Shelby, I also can hear when training maneuvers going on. Sat. night we also heard major fire power. Sounds we never heard prior. Unsure if came from aircraft, land based guns or what, but sound was loud.