PATHS OF CYCLONIC STORMS 



227 



itself is also much greater in winter than in summer, since 

 the difference in pressure between the high and the low 

 areas is much greater. The changes in temperature as the 

 storms pass are greater in winter than in summer since the 

 regions from which the northerly and the southerly winds 

 flow in toward the center of low pressure vary more in their 

 temperatures. 



During the summer months people who live in the Missis- 

 sippi Valley usually look to the south or southwest for the 



SOUTHERN 

 HIGH 



clouds which bring rainstorms. From this direction come 

 the moist northerly blowing winds (deflecting toward the 

 east) from the Gulf of Mexico. The heaviest rain is always 

 in the fore part of the eastward moving cyclone. The mois- 

 ture laden winds coming from a warmer to a colder region 

 and ' being forced upward in the cyclone deposit some of 

 their moisture. In the western part of the cyclone are the 

 winds blowing from northerly points. These come from 



