Download Ch 7 Lesson 3 Air Masses, Fronts and Weather Guided Notes

Air Masses, Fronts and Weather Maps Notes
Name: _____________________________________________ Date: ________________ Class: _____________
1. _____________ major types of air masses influence the weather in ______________________________.
 __________________________________________
 __________________________________________
 __________________________________________
 __________________________________________
2. Low pressure systems move ___________________________________.
3. High pressure systems move ___________________________________.
4. Winds spiral inward towards the ________________________ center of
of a _________________. Winds spiral _________________________
from the high pressure center of an ______________________________.
5. __________________________________--lines connect places of equal pressure.
6. Air masses can be warm or cold, and humid or dry. As an air mass moves into an area, the weather changes.
 __________________________________________ air masses from the Pacific Ocean bring
cool, humid air to the West Coast.
 ____________________________________________ air masses from central and northern
Canada bring cold air to the central and eastern United States.
 _____________________________________________ air masses from the Pacific Ocean bring
war, humid air to California and the West Coast.
 ______________________________________________ air masses from the South bring the
hot, dry air to the southern plains.
 ______________________________________________ air masses from the Gulf of Mexico
bring warm, humid air to the eastern United States.
7. A front forms from the boundary where unlike ____________________________ meet.
8. Colliding air masses can form four types of fonts:
 _________________________________
 _________________________________
 _________________________________
 _________________________________
Front
How it Forms
Types of Weather
Clouds, possibly storms with heavy
precipitation
Cold Front
A warm air mass overtakes a cold air
mass.
Stationary Front
Cold and warm air masses meet, but
neither can move the other.
Occluded Front
A warm air mass is caught between
two cold air masses.
Clouds, light precipitation