“ This invaluable instrument, if well understood, invariably announces the approach of a revolving storm; shows whether the vessel is plunging into the vortex, or if she be receding from it; and hence, by carefully noticing its indications, the disastrous consequences of a hurricane may, to a great extent, be avoided,—for the laws of its oscillations are very distinctly marked. The barometer often stands unusually high before the commencement of a cyclone, and frequently (if not always) just around the storm. ”
Quotes from The Law of Storms (John Ross)
“ When the course of a steady wind is obstructed in such a manner as to produce a Hurricane, or Cyclone, the wind has a rotary or whirling motion (as it were, on an axis) , while the storm itself has a progressive motion.N. B.—The rotation of the wind during a hurricane, in the Northern Hemisphere, is in a direction contrary to that in which the hands of a watch move. In the Southern Hemisphere, the rotation is in the same direction as that of the hands of a watch. ”
“ A REVOLVING STORM MAY ALSO BE ENUMERATED THUS: 1. A very rapid motion of the air constituting the hurricane, and increasing in velocity as the center is approached.2. A fitful variation of intensity in the force of the wind, which sometimes blows with fearful violence, carrying away everything that opposes its progress; then sinking to a gentle breeze, or even lulling to a calm, but almost immediately afterwards springing up with greater violence than before. The hurricane winds are nearly if not entirely, without exception, puffy, violent, and blowing in gusts. ”
