Chapter 8 Homework 1) What type of weather front would be responsible for the following weather forecast? "Increasing cloudiness and warm today with the possibility of showers by this evening. Turning much colder tonight with southwesterly winds becoming gusty and shifting to the northwest." – cold front 2) What is the origin of the cP and cA air masses that enter the United States? – Northern Canada and Alaska 3) When upper-level divergence of air above a surface low exceeds the surface convergence of air, the surface air pressure will ____ and the storm itself will ____. – decrease; intensify 4) Generally, the average speed of a warm front ____ the average speed of a cold front. – is slower than 5) When a cold front passes, the lowest pressure reading at a station will occur ____. – just as the front passes 6) According to the model of the life cycle of a wave cyclone, the storm system is normally most intense as a(n) ____. – mature cyclone 7) For a surface storm system to intensify, the upper trough of low pressure must be located to the ____ of the surface low. -- west Chapter 8 Homework 8) The forward progress of a warm front may be inhibited at night as a result of ____. – radiational cooling 9) During the winter, an air mass that moves into coastal sections of Oregon and Washington from the northwest would most likely be ____. -- mP 10) The coldest of all air masses is ____. -- cA