Creation of a Storm

We’ve explained the very basics of global weather and why we have cold air moving south and warm air moving north (In the Northern Hemisphere). We call the areas where air of different temperatures collides ‘fronts’. Everything else being equal the warm air rises over the cold air. However what normally happens is somewhere along this front things become unstable. Maybe it’s a small difference in local temperatures meaning the flow of air is slightly different, or simply the chaotic motion of all that air moving when the flow is particularly strong. Either way as the convection cycle runs and warm air rises surface pressure will drop. As surface pressure […]