Doesn't happen very often, but every once in a while the conditions are perfect for a large fog bank to come rolling in across the town. This was taken the other day while on camp.
Fog in Port Hedland? by outstar79, on Flickr
It was rather spooky as we watched it roll in and inundate us and soon visibility was...well you can see, and it started out so clear. It lifted moments later as the sun got higher and drifted upward - slowly dissipating.