This week's question comes from Morning Brief reader Jim, who asks, “Where does wind come from?” Meteorologist Jonathan Erdman: The reason there are winds at all is because there are differences in ...

Add Yahoo as a preferred source to see more of our stories on Google. Meteorologist Jonathan Erdman: The reason there are winds at all is because there are differences in air pressure. You can think ...

Meteorologist Jonathan Erdman: The reason there are winds at all is because there are differences in air pressure. You can think of air pressure as a reflection of how heavy the air is above you. If ...