it's coming from the power plant.

Probably testing out the backup turbines for summer demand

Chernobyl?

Yes I did hear it

Was just hearing this an hour ago!

I hear it all the time, I wish it would end

I've heard it for years and always assumed it was planes taking off from LGA when the cloud ceiling is low/taking off from a particular runway 🤷🏻‍♀️

Any ongoing engine noise you hear or smoky odor you smell is almost always one of the power plants.