A Tasman front will be bring plenty of rain to the western part of the country tomorrow.  Northland, Taranaki and western South Island should be the first to see rain tomorrow morning.  As we get into tomorrow afternoon, rain is expected to spread across the top half of the North Island while it continues to fall on the western South Island.

By tomorrow evening, all of the NI with the exception of Wairarapa, Hawkes Bay and Gisborne should be seeing rain.

On the Mainland, only Canterbury is likely to miss the rain.

Heavy rain is likely with this front.  The best chance for heavy rain is along the western sections of both islands.  Government forecaster MetService has issued a Heavy Rain Warning for Westland south of Otira.  Heavy rain is expected to begin tomorrow morning and could last into the mid-morning hours of Wednesday.  100 to 140mm of rain is possible with peak intensities of 10 to 15mm expected on Wednesday morning.

Rain could also be heavy about Nelson tomorrow afternoon.  Taranaki, Waikato, Auckland and Northland during the late night hours Tuesday into Wednesday morning.  No warnings are in effect for these areas at this time, but the situation is being monitored carefully.