These are a collective of storm gods, numbered anywhere from a dozen to several score, who are sons (and at least one daughter) of Orlanth. They are worshipped as part of the Orlanth cult and not typically individually (although there are exceptions).
A good real world comparison is the Maruts who follow Indra and serve as his followers and companions. Socially they are a model for the companions of the Prince, to whom their deeds are often attributed.