The front pushes over the South Island during the morning and afternoon, and then over the North Island during the afternoon and evening.
It mainly moves in from the west, so as can be expected, western regions of both islands will have rain with heavy falls and thunderstorms, as well as rain squalls at times.
The east coast of the South Island sees thick high cloud, along with a few spots of rain as the front moves over in the afternoon, then cloud breaking away to some sun – though winds blow strongly from the western quarter.
The East Coast of the North Island sees high cloud thicken from morning, while there’s also perhaps a spot of rain in the evening – otherwise conditions stay mainly dry, while westerlies and northwest winds blow strongly.
– Aaron Wilkinson & Drew Chappell, WeatherWatch.co.nz