As of today, there are three tropical lows the Fiji Met Service says all have cyclone potential.

By Friday or the weekend all will have merged into one super low north of New Zealand with rainfall totals at sea of over 400mm in the two weeks ahead, but here in New Zealand very little wet stuff is forecast, says WeatherWatch.co.nz

"It's a forecast that will be incredibly frustrating for many desperately in need of rain with basically two weeks of heavy rain north of the country yet staying close to bone-dry for land here.

"Large parts of New Zealand are now seriously dry with 2019 rainfall so far well below average in a number of regions. The big dry is quickly getting bigger now."

WeatherWatch.co.nz says the driest regions with the most concern are today: The Far North, Northland, Auckland, Waikato, Bay of Plenty, King Country, Taranaki, Whanganui, Manawatu, Horowhenua, Kapiti, Wellington and Nelson.

There are other dry areas too, like Canterbury, Coromandel Peninsula and Wairarapa but the above regions are much drier than normal for this time of the year, soil moisture-wise.

"The large tropical low to the north of the country will be frustrating if it doesn't slide far enough south, with rainfall totals at sea just north east of New Zealand expected to exceed 300 to 400mm over the next two weeks while over land the numbers be just 2 to 20mm. Northland has the best chance of getting rain.

"Highs in the New Zealand area will influence the low to the north, possibly even pushing it back north for a time. A lot of moving parts and WeatherWatch.co.nz will do our best to make sense of it all."