14000— 
, COLDFRONT 
12000— 
ILLUSTRATIONS 119 
~ RECOMMENDED FLIGHT PATH 
Fic. 7 is generalized cross-section from Columbus, O., (CO) to Newark 
(NK), showing a typical cold front with aircraft icing conditions in its clouds. 
The dashed-dot lines show how a pilot must fly to avoid the worst ice forming 
dangers. Snow squalls in the mountains are probably from both the colder 
and warmer air. (The windward sides of the mountains are more apt to be 
fogged in with clouds under such conditions than clear as shown here.) 
