The Movement of Air Masses
transporting warm air northward and colder air southward
Counterclockwise winds associated with cyclones
heat and moisture from lower to higher latitudes and play a
significant role in the movement of
As a cyclone intensifies,
(the central pressure drops),
counterclockwise winds around the
low pressure center also intensify, transporting the
air masses around
the center of circulation.
By superimposing fronts over the
low pressure center and the
a top view of a midlatitude cyclone and accompanying air masses
might resemble something like the diagram below:
east of the low transport warm and moist air northward and
this moisture often contributes to the
development of precipitation.
A warm front marks the leading edge
of this warm, moist air mass.
Behind the low, northerly
winds transport colder and drier air southward, with a
cold front marking the leading edge
of this colder, drier air mass.
on satellite images