In speaking of low pressure storms we called them storm centers, because
nearly always they are of sufficient intensity to bear that name, but in
high pressure areas we do not speak of them as storm centers.
The Buys Ballot’s law applies to anti-cyclonic as well as cyclonic
storms, that is, when one’s back is to the wind, the lowest barometric
pressure is at the left and the highest at the right. This is probably
understood by saying that in the cyclonic storms, the winds blow inward,
contrary to the hands of a watch, and in the anti-cyclonic they blow
outward, that is, in the same direction to the direction of the hands of
the watch.
In the United States, the cyclonic storms are not as frequent as low
pressure storms, and it is safe to say that probably not more than
one-third of the entire anti-cyclonic areas can be classed as storm
areas.