A tread (12) for a light truck or automobile tire (10) has a continuous rib (30, 32) between an adjacent piece of circumferentially continuous grooves (20, 22, 24). The tread (12) has a plurality of hook-shaped semi-blind grooves (40) originating from the circumferentially continuous grooves (20, 22, 24). Each rib (30, 32) has two rows of circumferentially spaced hook-shaped semi-blind grooves (40).