By Gary Warner
It doesn't happen too often, but the Chapman River has broken through to the sea.
Recent heavy rainfall in the Moresby Ranges, the major catchment for the Chapman, swelled it to the inevitable point of breaking the sandbar that separated it from the ocean.
Once that happened, the pent up force of the water soon carved a deep trench that also became wider as the flow increased.
Whether the second of Geraldton's two rivers, the Greenough, follows suit will depend on rainfall far away in its catchment in the Murchison.