https://t.co/wRPJ9xeYfR ^PL pic.twitter.com/6RLdBpLUm5 — MetService (@MetService) May 20, 2016"There's a real combination of severe weather elements that are happening to Northland as the swell comes through. A wild start to the weekend with stormy weather, huge swells and a rogue tornado wrecked havoc nationwide - and weather experts say it's anything but over. Most of the west coast will see some decent swells but the west coast of Northland is really going to see it," Murray said. Wild weather to continue overnightCHRISTEL YARDLEY/stuff.co.nz A tornado which ripped through Ron Richardson's property on Friday night has left him with a mess to clean up. A deep low is forecast to bring severe weather to northern NZ from this afternoon https://t.co/qHyE5zhh6X ^PL pic.twitter.com/bWoGSasKso — MetService (@MetService) May 21, 2016"A long period gives waves extra strength, they can push further inland.

Source: Stuff May 20, 2016 19:21 UTC