Pressure Systems

High Pressure Low Pressure Areas Low Pressure Low Pressure Systems Cold Fronts Cyclones Anticyclones Troughs Low-Pressure Systems Tropical Waves Vaguadas Cyclonic Circulation Effects on Local Climate Weather Patterns Humidity Tropical and Polar Air Masses Humidity Sources Weather Influences Low Pressure Troughs Low-Pressure Areas Warm Fronts Depressions Cold Air Masses Heat Low Formation Tropical Nights Rainfall Subtropical Highs High Pressure Areas Anomalies