TORNADOES. 
131 
nine storms the wind changed from the southwest to 
the west, and then to the northwest. 
Now these three 
series of changes 
show us the path of 
the storm in each 
case. As the wind 
blows around the 
storm center, con¬ 
trary to the hands 
of a watch, it will 
be plain that when 
the storm passes 
through our locality 
it will blow from the 
south, or nearly so, 
at the beginning. 
When the center 
reaches us there will 
be no wind, and 
when it passes us we 
shall have a north 
wind. The second 
series shows that the 
storm center passes 
south, and the third series shows that the storm passes 
north of us. Fig. 66 will make this plain. 
Fig. 66.—Changes of wind in general 
storms. If we are at 1, the wind 
reverses; if south of it at S, it veers 
toward the northwest; if north of 
it, to the northeast. 
TORNADOES. 
In popular language all rotating storms are called 
cyclones, but it is better to confine the term cyclone 
