Various appearances that come in the sky.
For instance, a good example is in the case of the thunder storm, which
can be determined at least a few hours in advance, by the movement of
the clouds and the forms they take. In every locality there is a
direction that clouds take that forecasts bad weather, and there is a
direction that clouds take that forecasts fair weather.
When you see a halo about the top of a mountain, you know that bad
weather is expected. The same is true when a halo appears about the
moon. This indicates rain, or if the lower clouds break up and the upper
clouds, or a second light covering of clouds, are seen above the lower
ones, it speaks for continued bad weather. In some localities if rainy
weather is continuing for some time, and a certain change in wind sets
in, it will indicate that good weather is coming.
These observations will be readily understood as being adapted for
certain localities and are not general. It is always necessary that the
observer adapt himself to these localities and study them, so that he
can make prophecies accordingly. It should be borne in mind that these
prophecies are only possible from one day to another.