Pressure-Temperature-Density
¥Pressure
¥Decreases more rapidly with height in cold air than in warm air
¥300 mb Level
¥Slopes downward from warm air to cold air
Minneapolis       Houston
Text Box: 300 mb
1000 mb
Text Box: 9.5 kmText Box: 8.5 km
MoreDense
Less Dense
Ahrens, Fig. 6.2