Massey employee Evan Williams had flown into Palmerston North that afternoon in the wild weather.
"The flight was pretty heavy with how strong the wind was, so I could see why it'd come down," he said.
"I drove in and went past them in the car. I thought 'wow, that's pretty intense'.
"The whole thing was uprooted."
Two cars were written off, one badly damaged, and another had minor damage. Photo / SuppliedWilliams said the two worst-hit cars looked "completely written off".
Gardiner said there are many trees on campus, and on Sunday they experienced "some of the highest winds we've had this year".
The university is working to bring down any loose branches up in the remaining trees, to protect students that are still on campus for exams.