A thick fog has blanketed Sydney this morning, causing flights delays and some diversions.
- Thick fog moved in over Sydney from the west this morning
- The lack of visibility has caused fight delays and diversions and Sydney Airport
- In sheltered areas, away from the wind, the fog may continue for most of the morning
Light winds in Sydney pushed the fog from the western suburbs — where it was initially thickest — towards the city and eastern suburbs, including Sydney Airport in the city’s south.
Recent rain has been a major contributor, increasing the moisture required for fog formation.
The ample moisture, light winds and low temperatures produced a blanket of fog that reduced visibility to just a few hundred metres in many Sydney suburbs.
Reports suggest visibility at the airport has dropped below 500 metres at times — low enough to cause flight delays and even some diversions.
At Terminal Two there are widespread delays of 90 minutes to 2 hours in both arrivals and departures, an airport spokesperson said.
At Terminal One delays are less than 30 minutes.
Weatherzone meteorologist Brett Dutschke said it was the “foggiest time of the year”.
“We still have relatively warm waters that give us that extra moisture,” he said.
“But this was very thick fog and quite widespread, which is reasonably unusual.
“The fog is expected to linger in the most sheltered valleys and around rivers well into the morning because we’re not getting the burning off effect of the sunshine because we’ve got still a fair bit of high cloud about.”
The Bureau of Meteorology has also issued a surf and swell warning for coastal activities such as rock fishing, boating, and swimming.
Sydney is expected to reach a top of 18 degrees today.