Also sometimes I've noticed it's only during the winter time or when it's cold, I hear this loud rumbling noise windows shake and it's loud sometimes even during the day, to me sounds like when airplanes are speeding up, have yall ever been at hobby when planes are taking off the loud rumbling noise that's what it sounds to me, I live right next to HCC south east campus so yall get the idea from hobby to hear is still some distance, but that's the only think I can think off, the noise is loud like rumbling and it shakes the windows but it's been only couple of times.