Flood

Description
A weapon that raises the water level by the same amount of the Game Mode's setting. Usually many worms at the lower ground will drown from it. The flood does the same effects as the Nuclear Bomb from Worms 2. However, in WF:US, the Flood slowly raises the water (like the Nuke from the old Worms games), and it raises it much higher than in Worms 4, but it automatically goes back to normal when the maximum height of the flood is reached.

This weapon will temporarily raise the water levels and washes away those not stood on higher grounds! - WF:US

The Flood is a replacement of the Nuke from Worms 2, since Nukes are no longer in Worms, these days.