1. A remarkably clear state of the atmosphere, so that the stars
may be seen to rise and set with nearly the same distinctness as
the sun and moon.
2. A peculiar white appearance in the zenith, more or less of a
circular form.
3. A remarkably red or fiery appearance of the sky. This is not
unfrequently of such intensity as to tinge all the surrounding
objects with a deep crimson; and when this is seen there can be no
question that the violent portion of the cyclone is not far from
the vessel. When this red light is seen at night, the impression
on the seaman’s mind is that day has broken before its time.
4. A peculiar coloring of the clouds, more especially of an olive
green. This is generally the precursor of a most violent and
terrific hurricane.
5. A thick, hazy appearance in that quarter of the horizon in
which the cyclone is raging.
6. A remarkable and peculiar appearance of the heavenly bodies.
When shining through a haze they are said to shine with a pale,
sickly light, and are not unfrequently surrounded by rings of
light, or halos. Some observers describe the stars “as looking
big, with burs about them”; others speak of their “dancing,” and
generally they have been noticed as being remarkably bright and
twinkling.
7. The sun, on some occasions, has exhibited a blue appearance,
and white objects have been seen of a decided light blue color.
The sun has also been observed of a pale and somewhat similar
appearance to that of the full moon.