Zul-Mad-Hai is considered the quickest tempered of all deities.  His flash temper has caused great storms that have reshaped continents and destroyed islands.  Islanders tend to have many rituals for appeasing Zul-Mad-Hai, though even those on the mainlands have a great respect for the damage his great storms can do.  Many elemental specialist arcanists worship Zul-Mad-Hai, as well as evokers, but his clerics are rare, and tend to slightly mad.  His symbol, the Storm Cloud, is often found on his temples and markers for ritual sites.