Ocean.
There are various prognostics deducible from the appearance of the ocean. When the surface of the sea is rough without any wind blowing at the time, expect a gale before long; for the wind already blowing in some distant part of the ocean is the cause of the swell imparted to the sea.
Pavements.
If pavements appear rusty or if stoves or iron or steel rust during the night, rain may be expected soon.
Pipes.
Pipes for smoking tobacco become indicative of the state of the air. When the scent is longer retained than usual, and seems denser and more powerful, it often forebodes rain and wind.
Rain.
The greater distinctness of distant objects indicates rain. The air grows clear and distant objects are seen more clearly just before rain.
Rigging Rope.
The rigging rope on vessels and clothes lines grows slack before rain.