Isobars MET

As with terrain maps and contours, the closer the isobars, the steeper the pressure gradient, meaning a bigger pressure difference and a stronger wind.

There are three basic types of wind you need to know about, which are explored in more detail in later questions:

Geostrophic wind flows along straight isobars; Gradient wind flows along curved isobars; Surface wind flows slightly across isobars towards the low.