Jones, a two-time Winter X Games champion, is among a number of Brits beginning the final leg of the road to Sochi in New Zealand and delivered the first success of the season.
The 33-year-old gave warning of what was to come after winning her snowboard slopestyle qualification heat with a second-run effort of 88.33, having scored 70.00 first time out.
Jones produced an even better performance in the final, scoring 87.00 with her opening run before being awarded 50.75 as she tried to better it in Cardrona.
That score was good enough to put her second overall for silver as Jamie Anderson of the USA took the victory with 94.75 with Dutch snowboarder Cheryl Maas third with 80.50.
Jones is one of a number of British freestyle ski and snowboard hopefuls for next year's Olympics with James Woods, Billy Morgan and Katie Summerhayes all performing well last season.
And, with conditions far from perfect in New Zealand, the men's snowboard slopestyle was cancelled due to the weather, Jones was made up with her performance.
She said: "I was pretty chuffed with my run, especially under the conditions. I mean it was foggy, it was windy and I managed to land all of my tricks. Happy days!"
Jones had two British teammates for support in the women's snowboard slopestyle as Aimee Fuller and Katie Ormerod placed ninth and tenth respectively in the same qualification heat.
Meanwhile Morgan is in New Zealand himself and was fourth in his heat in the men's snowboard slopestyle while British teammate Sam Turnbull placed 13th in the same draw in New Zealand.
The weather intervened to end that competition while Rowan Cheshire, Murray Buchan and Peter Speight were the first Brits in action in New Zealand, placing 17th, 22nd and 26th in the freestyle ski halfpipe.
© Sportsbeat 2013