Some soil moisture increases may be found in the West Coast and upper South Island during the next week, but additional decreases will be most likely in southern Canterbury and coastal Otago.
Due to the expected rainfall over the next week, much of the North Island will likely see at least small soil moisture increases, with some locations possibly seeing moderate increases.
Due to the substantial rainfall expected in the next week, at least small to moderate soil moisture increases are expected for nearly all of the North Island.
Soil moisture decreases were observed across most of the North Island during the past week, with the most substantial losses occurring from lower Northland through to Bay of Plenty and East Cape.
In the North Island, many locations received moderate to substantial rainfall amounts ranging between about 30-60 mm, including much of Northland, Waikato, Taranaki, Gisborne, and Hawke’s Bay. Meanwhile, amounts less than 30 mm were observed across eastern Northland, Auckland, Manawatu-Whanganui, and Wairarapa.
Meanwhile, the wettest soils for this time of the year are located from Manawatu-Whanganui to Hawke’s Bay. Despite the general drying of soils during the past week, no hotspots are currently found across the North Island.
Soil moisture increases will be likely in the next week along the West Coast and in parts of the upper South Island.
Many parts of the South Island saw small soil moisture increases during the past week, although small decreases were observed in northern Canterbury.While soil moisture increases will be possible in the lower South Island during the next week, expect further decreases across Marlborough and Canterbury.
While moderate soil moisture increases occurred across Tasman, West Coast, and the lower South Island, slight decreases were observed across much of Canterbury.With significant rainfall possible in parts of the North Island, many locations will likely see minor to moderate soil moisture increases during the next week.
With many locations across the North Island expected to see weekly rainfall totals of 25-40 mm (with isolated higher amounts), minor to moderate soil moisture increases will be likely in most areas.
Generally light rainfall amounts across a majority of the North Island during the next week will likely result in soil moisture decreases in many locations, with most existing hotspots strengthening and expanding at least slightly.
The New Zealand Drought Index (NZDI) shows that severe meteorological drought currently encompasses most of Northland, Auckland, northern Waikato, western Bay of Plenty, East Cape, and small portions of interior Manawatu-Whanganui, with meteorological drought in place from Bay of Plenty through the Central Plateau (see NZDI map).
As of 8 March, the New Zealand Drought Index (NZDI) map below shows that all of the upper North Island is experiencing severe meteorological drought, along with East Cape and interior Manawatu-Whanganui, with meteorological drought in many other locations.
Despite this, soil moisture levels generally decreased slightly during the past week, particularly in the Far North and from Waikato to Hawke’s Bay. The driest soils across the North Island, when compared to normal for this time of the year, are generally found in the northern half of the island along with Wairarapa, while the wettest soils for this time of the year are located in Kapiti Coast.
The New Zealand Drought Index (NZDI) shows that all of the upper North Island as well as East Cape are experiencing severe meteorological drought, while the southern Waikato and eastern Taranaki to Manawatu-Whanganui and western Bay of Plenty are experiencing meteorological drought (see NZDI map).
The New Zealand Drought Index (NZDI) shows that the upper North Island has widespread severe meteorological drought, with meteorological drought also affecting central Waikato to Manawatu-Whanganui as well as East Cape (see NZDI map below).
In addition, the New Zealand Drought Index (NZDI) shows that the upper North Island (northern Waikato northbound) has widespread meteorological drought conditions.In the North Island, mostly dry conditions will continue during next week and rainfall is expected to be below normal for the time of year.
In addition, the New Zealand Drought Index (NZDI) shows that the upper North Island (northern Waikato northbound) has widespread meteorological drought conditions, and in fact, the Aupouri peninsula and pockets of Great Barrier Island have recently reached severe meteorological drought conditions (see map at bottom).
As of 12 January, the New Zealand Drought Index (NZDI) map below shows that the upper North Island continues to have widespread very dry to extremely dry soils, and some locations could approach meteorological drought conditions with additional dry weather in the coming week.
Across the North Island, rainfall of generally less than 5 mm during the past week has led to notable soil moisture decreases for nearly all locations and expansion of existing hotspot coverage.
With the anticipated rainfall in the upcoming week, little or no change in soil moisture levels are expected from the south Waikato northbound, along with parts of southern Hawke’s Bay and coastal Wairarapa, while the rest of the North Island are expected to experience slight soil moisture increases.
Across the South Island, substantial rainfall during the past week led to soil moisture increases along the lower West coast, Fiordland, parts of Otago, lower Canterbury along with northern Tasman and Marlborough.
The driest soils across the North Island compared to normal for this time of the year are now found in southern Northland, northern Auckland, much of the Coromandel Peninsula, the Hauraki District, and coastal Wairarapa.