Spring is here - apparently - and along with it a massive cold snap. Snow has closed roads in both islands overnight. The Desert Road remains closed between Waiouru and Rangipo, as is the Napier-Taupo Road. There has been light snow and flurries seen in Christchurch and the hill suburbs of Wellington, and on the new Transmission Gully State Highway. In Dunedin - a couple of main roads are closed and it's been an extremely cold night. RNZ Dunedin reporter Tim Brown with the latest.