Aerial footage has emerged showing severe flooding from a cyclone that lashed northwest Australia in recent days.

Video filmed from a helicopter by a local infrastructure specialist shows the swamped landscape - included a cut-off road - of the Pilbara region of Western Australia, which became flooded after Cyclone Veronica struck several days ago.

Footage filmed from the ground shows Strelley river, also in Pilbara, fully flooded.

Although there have no reports of injuries, the flooding affected farmers as land stricken by drought was inundated by rains.