- How severe storms begin to form by breaking the cap
- W953824S
- How severe storms begin to form on a clear day by breaking the cap. A completely clear sky erupts with a line of thunderstorm cells. The straight axis is a sure giveaway of some type of surface boundary. In this case it is the western edge of a fetch of deeper moisture and higher dewpoints. Once the heated air reached the critical temperature for convection, the cap broke, towers sprang into existence and storms followed quickly.
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