Redfield was mapping storms after 1830, but he was not trying to make
weather forecasts. He wanted only to learn about hurricanes in order to
give the mariner a law of storms by which he could judge the weather for
himself. Nobody worried about the landlubber. It was the idea in those
days that a man on land could get his weather out of an almanac or by
watching the signs of the winds, clouds, birds, stars, or the rise and
fall of the barometer. Scientists who believed that it would be possible
to predict the ordinary changes in the weather were decidedly in the
minority. One of these was James Pollard Espy, who became known as the
“Old Storm King” of America.
James Espy was born in Pennsylvania, in the vicinity of Harrisburg, but
his father moved the family to Kentucky while James was an infant. It
has been said in biographies of Espy that the boy had no education and
was seventeen years old before he learned to read, but this was denied
by relatives who survived him. It seems that the elder Espy soon went to
the Miami Valley in Ohio, to get established in business, and left James
with an older sister in Kentucky. At eighteen James registered at
Transylvania University, in Lexington, where he was much interested in
science. In any event, at various times he was a schoolteacher in Ohio,
Maryland, and Pennsylvania, until he became fully occupied in the study
of weather.
In 1820, Espy joined the Franklin Institute, in Philadelphia, to teach
languages and work on the weather. In an amazingly short time, he became
an authority on meteorology. He was a pleasant, easygoing man, but very
persistent in two matters. First, he was determined to have a government
bureau established to predict storms; and, second, he disagreed with
Redfield in the latter’s whirlwind theory of hurricanes. At times the
two carried on a violent controversy in the press. Espy argued that the
winds blow directly toward the center of a storm or toward a line
through the center. He was right with respect to storms of middle and
higher latitudes, as everybody knows today. He anticipated the modern
idea of fronts, and he and other scientists of his day sometimes
referred to these lines as “like a line of battle.” In a way, Redfield
also was right, for the typical hurricane in the tropics has no fronts.
In his efforts to set up a government weather bureau, Espy was
successful in a small way. In 1842, he was appointed by Congress for
five years as “Meteorologist to the U. S. Government” and assigned to
the Surgeon General, where he worked for five years. This rather strange
appointment was due to the fact that the Surgeon General had been taking
weather observations at Army posts since 1819 and had much data for
study.
Public-domain text, read in full here on John Shaqi.
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