Prevailing winds are major wind systems that follow similar patterns over time and winds that blow from a single direction over a specific area. In geography, the area where prevailing winds meet is called the convergence zone – this is where weather conditions begin to form. There are different kinds of prevailing winds such as: Polar Easterlies which are dry and cold winds that flow from the east into low pressure area in several sub-polar regions, westerlies which are prevailing winds that blow from the west – this can either be strong or weak depending on the season and trade winds which are powerful prevailing winds blowing from the east – this is where storms, hurricanes and typhoons begin to develop because of different air pressure in the ocean.