Isaiah 30:30 describes theophany—God's terrifying appearance in judgment: 'YHWH will cause his majestic voice to be heard and the descending blow of his arm to be seen, in furious anger and a flame of devouring fire, with a driving storm and hailstones.' The noun denotes violent, wind-driven precipitation, perhaps a cloudburst or storm front. The term relates to napats (shatter, burst), suggesting explosive weather—clouds bursting open, rain hammering down. Coupled with fire and hail, the imagery is of overwhelming force, nature weaponized in divine hands.