What's with all this wind? Well, I'd like to tell you, but ... Woah!
Simply put, wind is the motion of air molecules.
Air molecules are always moving, colliding with each other and any objects at ground level. Air pressure is the amount of force that these molecules impart on a given area. In general, the more air molecules present, the greater the air pressure.
Wind occurs when air is pushed by high air pressure to low air pressure areas, just like you might see on the news on a weather map.
Think of a bag full of air. If you apply pressure to one corner (or high pressure), the air rushes to the areas of the bag where pressure is not applied (or low pressure). You can be sure that inside that bag, things became quite windy … Woah!