High-Pressure systems
Labeled as a H on a weather map
Masses of cool and dry air
Bring fair weather with mostly sunny, clear skies and light winds
Low-Pressure systems
Labeled as a L on a weather map
Masses of warm and moist air
Bring cloudy, stormy weather with strong winds
Precipitation
Water that falls to Earth as rain, snow, sleet, mist, or hail.
Factors that affect the amount of precipitation an area receives are:
Temperature
Bodies of water
Elevation
Atmospheric conditions