It is used in ships for safety in foggy conditions.

Closing in foggy conditions the two ships sighted each other around 08:52 at a distance of 4,000 yards.

The raiding party had been unable to locate their target because of the dark and foggy conditions.

The Crusaders win the Super 14 final in foggy conditions.

The cause was a signal passed at danger in foggy conditions.

This haze can be a navigational problem when combined with foggy conditions.

There were foggy conditions at the time of the plane crash.

Ship's bells are also used for safety in foggy conditions, their most important modern use.

Due to foggy conditions, the red light signaling to stop was not seen.

The weather can be quite stable during the summer months, although foggy conditions are common, occurring during 20% of all days in July.