“The path of storms. For years the records of storms have been kept. We can see from these records that certain established paths are apt to be followed. Some of the storms reach our country from the Pacific. Others are started near the western mountains. They always move in an easterly direction, usually crossing the Great Lakes, and following the St. Lawrence Valley to the sea. Figure 63 shows some of the best-defined paths.

Fig. 64. The progress of storms across the Atlantic is indicated by the three lines, A, B, and C, each of which marks the course of a typical storm center recorded by the United States Weather Bureau. There are hundreds of such storms every year. The numerals I, 2, 3, etc., show the progress of the storms from day to day. The rings of arrows described about the storm tracks where they reach the European coast show the resulting effect upon the wind for hundreds of miles around.

In the Great War the direction of the wind was of great importance when harmful gases were used. The arrows show winds which blew favorably for the Allies.

(Courtesy, Foster Ware and The Independent.)”

Reference Data:

The Science of Everyday Life: Projects for Junioe High Schools, by Edgar Flandreau Van Buskirk and Edith Lillian Smiith, 1919, page 115