Chapter 3: Mechanics of Frontal Systems

CHAPTER THREE

Mechanics of Frontal Systems

300.

INTRODUCTION

The purpose of this chapter is to introduce the student to various frontal systems, including their

formation, flight conditions, and associated weather patterns, since most of the active weather is

concentrated along fronts. The goal of this chapter is to present a broad description of each of

the frontal types, along with the general flight conditions associated with each. With this

knowledge, an aviator will carry on a conversation about flight conditions with the meteorologist

during the weather brief, as opposed to having a one-way conversation. Because only the flight

crew understands the details and ramifications of the mission, it would be impossible to expect a

meteorologist to foresee all the possibilities and to brief the weather accordingly.

301.

LESSON TOPIC LEARNING OBJECTIVES

Terminal Objective: Partially supported by this lesson topic:

2.0

Upon completion of this unit of instruction, student aviators and flight officers will

demonstrate knowledge of meteorological theory enabling them to make intelligent decisions

when confronted with various weather phenomena and hazards.

Enabling Objectives: Completely supported by this lesson topic:

2.29

Define the terms air mass and front.

2.30 Describe the air mass classification system, including moisture content, temperature, and

source region with respect to latitudes.

2.31

Describe the relationship between air mass temperature and stability.

2.32

Describe the structure of a front.

2.33

Describe the discontinuities used to locate and classify fronts.

2.34

Describe the factors that influence frontal weather.

2.35

Describe the conditions associated with a cold front.

2.36

Describe the characteristics of a squall line.

2.37

Describe the conditions associated with a warm front.

2.38

Describe the conditions associated with a stationary front.

Mechanics of Frontal Systems 3-1