Weather Forecasting: The Earth's Atmosphere in Balance

the holy grail of meteorology

identifying areas of upward motion in the atmosphere

horizontal motion

drives air masses through different regions on the surface

vertical motion

creates cloud cover and precipitation

9 and 10 rule for pressure

0-5, add 10, 6-9, add 9

how air moves

from high to low heights

divergence

a gap rises between two air masses and air rises to fill to gap (upward motion)

convergence

two air masses collide, air is forced out and goes down (downward motion)