Mr Devlyn, 75, said he'd never seen anything like it, even during his nine years in the Navy.
"It just came out of nowhere. It was calm just before and it was calm after. The place is a bit of a mess now."
Willie Barlow's home was the worst hit - his chimney was torn down, about four windows shattered and the trees "massacred".
He was looking after his 6-year-old grandson, Lucas, when the tornado hit.
About 11.30am he saw the swing set in the back yard fly past the window. Lucas began crying.
"I felt bad for him, he didn't know what was going on," he said.
Mr Barlow, 70, is still able to live at his house and yesterday afternoon whanau gathered to help clear up.
Raglan police constable Jeremy Holmes said the tornado caused damage over a two-block radius.
Firefighters had told him that some outdoor furniture had also blown on to the roof of a house, and that a car was trapped under a tree.
Emergency services had three calls about the tornado from Taipari and Tahuna Avenues around midday. No one was injured.