Isolated Clouds.
When on clear days isolated clouds drive over the zenith from the rain-wind side (see table I, part II) storm and rain follow within twenty-four hours.
June.
It never clouds up in a June night for a rain.
Lookout Mountain.
When Lookout Mountain has its cap on, it will rain in six hours.
Low Clouds.
Clouds floating low enough to cast shadows on the ground are usually followed by rain.
Mackerel Sky.
Mackerel sky, mackerel sky,