Atmospheric Motion
Before Lab: Review pages 180-233 in your Weather and Climate textbook. Pay special attention to the
sections entitled “Factors Affecting Wind”, “Winds Aloft”, “Surface Winds”, and “Jet Streams”.
Summary: This lab concentrates on understanding the motion of air around high and low pressure
centers and identifying these systems and the jet stream on weather maps.
LAB EXERCISE
1. Wind blows in specific directions around areas of high and low pressure. Draw the Northern
Hemispheric airflow pattern around the high pressure (H) and low pressure (L) areas below.
H L
2. Given the flow that you have drawn in question number 1 and the location of the cold and warm air
masses below (denoted as “COLD AIR” and “WARM AIR,” respectively), draw arrows illustrating where
the air masses should move relative to the high and the low (hint: air masses “go with the flow”).
COLD AIR
H L
WARM AIR
1