The 20-year-old set one of the fastest times of the day while also landing both of her jumps to top the leaderboard with 78.76, after qualifying through to the final in fourth position.
Anthony, who finished fourth at her Olympic debut at Pyeonchang in 2018, was ecstatic with her first World Cup victory.
“I’m so stoked! I had a great day on the course, it was epic conditions and I put down some runs I’m super stoked with, got all the bits and pieces together I was working on and managed to come away on top, I couldn’t be happier right now,” Anthony said.
“I’ve just had a great time skiing in Lake Placid and the course here is probably the all-time best on the World Cup tour.”
The win was Anthony’s second podium this season to go with consistent top five finishes, showing encouraging form in the leadup to the 2019 World Championships in Utah in February.
“I’ve stepped up my game this season and it’s paying off with my results.”
“Now we have the next stop coming in Tremblant with the world champs in Deer Valley following up right after that so I’ll be definitely looking to back this up in the following weeks.”
Pyeongchang silver medallist Matt Graham continued the successful day for the Australians, taking bronze behind France’s Benjamin Cavet and Sweden’s Walter Wallberg.
“I’m stoked to finish up with a bronze medal today,” Graham said. “Special congratulations to Jakara for her first World Cup win, I’m sure there’s many more to come.”
Fellow Aussies Britt Cox and Brodie Summers also made it through to the finals, finishing 9th and 13th respectively.
Also in action for Australia but missing out on finals where Taylah O'Neill in 21st, Claudia Gueli 24th, Sophie Ash 25th, Rohan Chapman-Davies 2th and Cooper Woods-Topalovic 34th.
IMAGE: Jakara Anthony & Matt Graham, medallists in Lake Placid © OWIA/Lachy Keevers