I live under one of the approaches to LaGuardia. Around 9:30 this morning, what sounded like the loudest jet I've ever heard flew overhead but I couldn't see anything due to low clouds. A few minutes later, I heard another one; this time I managed to get a peek of it as it was heading away from me. Kind of looked like a B-1.

Is it possible there was a flight of 2 B-1's coming into LGA this morning?