Heavy snow and rain are predicted to lash parts of Canterbury, prompting a warning to hikers in the region.
The rain has already flooded Emmett St in Christchurch.
The MetService is warning areas north of Fairlie, along with coastal regions and the plains to brace for as much as 60mm of rain through to Monday night.
Trampers in the area to be on the lookout for rising rivers, floods and slips and the foothills from Porters Pass southward are expected to be hit particularly hard.
Meanwhile, snow is also expected to reach the same areas above 500m throughout the day, with up to 35cm possible at Porters Pass and up to 15cm further north.
"Heavy snow is likely to cause disruption to transport and place stress on livestock," forecaster Heath Gullery said.
The warning comes after more than a dozen vehicles were trapped by snow and had to be rescue in Central Otago over on Saturday night.