Transport Management Centre spokesman John Pearson said the situation remained “variable”, with fog moving in and out of the city. “Our appeal to drivers is to slow down and drive to the conditions,” he said.
Weatherzone meteorologist Aline Ribeiro said Tuesday morning’s fog was “really dense”. “It’s really easy for this to develop when you have a high-pressure system and a cold weather front,” she said, adding Tuesday’s settled conditions and only light winds increased the chances for early morning fog.
Ribeiro said the fog would clear by about 9am, when temperatures reached about 15 or 16 degrees, but while temperatures remained around 10 degrees and humidity remained high, at 98 per cent early on Tuesday morning, the fog would linger
Ribeiro said coastal roads would likely experience hazardous conditions. No fog is expected for Wednesday. After Tuesday morning’s fog clears, Sydney is forecast to experience a mostly sunny day, with a high of 21 degrees, according to the Bureau of Meteorology.
Weather is considered fog when the concentration of water droplets in the area means visibility is less than one kilometre. Tuesday morning’s fog comes after fog in June also saw ferry services cancelled and a road weather alert issued for all of Sydney.
The bureau also had a hazardous surf warning in place for much of the NSW coast on Tuesday, impacting rock fishing, boating, and swimming across the Sydney coast.
“People should consider staying out of the water and avoid walking near surf-exposed areas,” it said.