Strong winds have caused havoc at Sydney airport, forcing airlines to cancel dozens of flights.
A cold front moving over eastern NSW on Saturday has begun bringing damaging winds across Sydney and the NSW alpine region.
Wind speeds approached 50km/h, while gusts topped 70km/h on Saturday morning at Sydney airport.
Qantas, Jetstar, Tigerair, Rex and Virgin all cancelled multiple flights into and out of the airport in the city's south.
Virgin warned travellers the winds could result in some changes to flights.
"We'll do everything to get you on your way as quickly & safely as possible," the airline posted to Twitter.
"If you're flying, be sure to keep an eye on your flight status."
A severe weather warning for damaging winds remains in place for Sydney, the Illawarra, Southern Tablelands, Snowy Mountains and south coast regions.
Blizzards are possible in alpine regions above 1600m on Sunday afternoon.
The NSW National Parks and Wildlife Service recommends that back country travel be postponed until conditions improve, the weather bureau said.
Strong winds lashed parts of the state earlier in the week, with Thredbo recording a peak wind gust of 115km/h on Thursday.
A peak wind gust of 96km/h also hit Moss Vale in the Southern Highlands on Thursday.
The bureau has issued a gale wind warning for the Hunter, Sydney, Illawarra, Batemans Bay and Eden coasts on Saturday.
