SFGate:

Bay Area residents were serenaded by the Golden Gate Bridge as wind gusts passed through the region Friday — a new phenomenon that has a relatively simple explanation.

A number of individuals shared videos of the eerie humming sound coming from the bridge, with many reporting they could hear the noise from miles away. After enough people inquired about the noise, the Golden Gate Bridge Sargent reported the sound is caused by wind hitting new sidewalk railing slats.

Like 2020 wasn’t weird enough already.