Plural of ghibli; multiple instances or occurrences of the hot desert wind.
From ghibli plus the standard English plural suffix -s. Though ghibli is typically used as a mass noun referring to the wind phenomenon generally.
It's interesting that we pluralize wind names—while 'ghiblis' is grammatically correct, meteorologists rarely use it, preferring to talk about 'ghibli events' or 'ghibli conditions' to describe when the wind strikes.
Complete word intelligence in one call. Free tier — 50 lookups/day.