"I was happy to get back into a good headspace to make the final, after a really competitive semifinal, and was stoked to finish fourth."
Australian Jess Fox scraped into the final in 10th spot but then set a withering time of 97.14 seconds which proved unbeatable.
Slovakia's Jana Dukatova was second and Germany's overall World Cup winner Ricarda Funk third, more than 4sec clear of Jones.
The Kiwi's cause wasn't helped by a 2sec penalty for a gate infringement.
"I didn't think I would be fourth with the run I put down but lots of girls made mistakes," Jones said.
"I think they were trying to push and match Jess's time. I was disappointed with the quality of my run, as I had two touches and felt like I was fighting the water a bit, but fourth is a great result."
The result showed her medal at last year's Rio Olympics was no aberration and bolstered her ambitions to target both the C1 and K1 classes in Tokyo in 2020.
Both Jones and Dawson will contest the extreme slalom class in the final session on Sunday.