Submitted by DisentangledElm t3_119n5ev in baltimore
Anyone else been hearing an loud, banging noise in lower Mt. Vernon? Seems to have started earlier this week and "bangs" every twenty minutes or so. I'd guess construction, but I've been hearing it 24/7. Almost sounds like something mechanical on a business roof, but it's decently loud.
ObviousGazelle t1_j9n34ls wrote
It's live fire exercises and testing at APG in Harford county. They've been shaking my house all day. I can hear the heavy machine gun fire. It sounds like hammering with a "boom boom boom boom boom boom then pause then again in quick successions. Due to atmospheric conditions and especially when it's colder they can be heard or felt all over MD, DE, and into Southern PA