Low Visibility (E3.1)
The umbrella term for anything that makes it hard to see: Night, Fog, Mist, Rain, Falling Snow. A LV Hindrance works like an ordinary LOS Hindrance with two differences that matter. It stacks with other Hindrances no matter what the range is, and on its own it doesn’t cancel FFMO or Interdiction the way a normal Hindrance would.