Lesson 3, Topic 6: Weather in the Atmosphere ; air masses

Air mass ( weather ) is a huge body of air that has similar air pressure, __________, and ________

• Occluded ; Stationary

• Cold ; Thunderstorms

• Temperature ; Humidity

• Water ; Dry

Whether an air mass or humid or dry depends on whether it forms over _____ or ___ land

• Water ; Dry

• Temperature ; Humidity

• West ; East

• The ocean ; Land

Movement of air masses in the US are from the prevailing __________ ( wind belts that push air masses from west to east) and ___ _______ (band of high-speed winds about 6 to 14 kilometers _____ Earth's surface

• Warm ; Cold ; The ocean

• Humidity ; Water ; Dry

• Front ; Cold ; Thunderstorms

• Westerlies ; Jet streams ; above

US jet streams blow from ____ to ____, and the surface air masses beneath them are carried along

• Occluded ; stationary

• West ; East

• Low ; High

• Land ; Continental

Tropical = ____, air (from tropics) w/ low air pressure

• Warm

• Cold

• The ocean

• Land

Polar = ____ air (from high latitudes) w/ high pressure

• Cold

• Warm

• The ocean

• Continental

Maritime = form over ___ _____ and are very humid

• Continental

• Cold

• Warm

• The ocean

Continental = from over ____ and are drier

• West

• Land

• Cold

• Continental

___________ air masses can have more extreme temperatures because large bodies of water moderate air temps

• Temperature

• Thunderstorms

• Continental

• Stationary

Boundary where two air masses meet becomes a _____

• Front

• West

• Land

• Occluded