Sydney floods: Great white shark seen in Narrabeen Lagoon, close to homes

The shark was spotted close to homes. Photo / Supplied

There are reports this morning that a great white shark has been lurking in a flooded Sydney lagoon close to homes and where, just yesterday, locals were swimming.

Footage emerged on social media during wild weather on Sunday showing what appeared to be a large dorsal fin in the swollen Narrabeen Lagoon on Sydney's northern beaches.

The user who uploaded the footage to Instagram is an Airbnb host at Narrabeen who captioned the video: "Great white spotted in Narrabeen Lagoon", news.com.au reports.

The shark was spotted close to homes. Photo / Supplied

Lake Narrabeen has flooded surrounding streets including Pittwater road and the backyards of those who live on the lake despite this volume of water draining out to sea. #NSWFloods #SydneyStorm pic.twitter.com/aE2GkykIMc

— Andrew Larsen (@LarsenDrew) February 9, 2020

The website Dorsal Watch, which lists shark sightings around the world, featured a report at 7.23pm from North Narrabeen of a "fin spotted from shore".

"Lagoon was opened up to the ocean due to storm and flood warnings," the report read.

Earlier in the day, locals were photographed running and jumping into the lagoon as heavy rain continued to pour down.

A shark was last spotted in Narrabeen Lagoon in January 2007. On that occasion, two men said they saw a great white swimming out of the lagoon after earlier reports from a fisherman who said it pulled a duck under water.

The report of a shark swimming in flooded waters on Sunday was followed by the evacuation of some residents near the lagoon.

The Bureau of Meteorology has forecast more severe weather for today including heavy rain, strong winds and damaging surf conditions that are likely to further impact Sydney's northern beaches.