RESULTS OF CHANGING AIR PRESSURE 



65 



large bodies of water, a great deal of moisture is absorbed by the 

 air. On the Atlantic Coast it is easy to see that easterly winds 

 bring rain, while westerly winds bring fair weather. 



The low over New Jersey shows how the air rushing in from over 

 the ocean, laden with water vapor, rises and mixes with the colder 

 air. The moist air in turn cools off, and is forced to drop its moisture 

 as rain. 



Find other parts of the country which would look for storm 

 winds from different points of the compass. 



How to Tell the Velocity of the Wind. The tables are given 

 below to determine the velocity of the wind, 



Wind blowing over 100 miles per hour would have a pressure of 

 over 50 pounds per square foot. 



