However, most locations in the upper and central North Island will likely see either little change or small decreases in soil moisture levels during the next week.
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.
As weather systems tracked toward New Zealand from the west and north, they lacked moisture because of cooler eastern Indian Ocean seas caused by the IOD.NIWA’s climate change expectations suggest spring average rainfall decreases for northern New Zealand, including Auckland.
Soil moisture increases will be possible in the next week along the West Coast, although minor to moderate decreases are likely in most other parts of the South Island.
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.
The New Zealand Drought Index (NZDI) shows that severe meteorological drought coverage has receded significantly in the past week, but it is still found in parts of Northland, Auckland, the Coromandel Peninsula, and East Cape.
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).
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.
Thus the Super Bowl is perfectly timed, because it means that all those football fans don’t need to worry about king tides flooding their hotels.“You can have an extreme high tide associated with king tide,” says University of Miami climate scientist Ben Kirtman, “plus sea level, plus a hurricane, plus excessive rainfall.
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.
Soil moisture levels are likely to increase along the West Coast and in parts of the lower South Island during the next week, while most other areas will see little change.
Across the North Island, moderate to large increases in soil moisture levels were observed in most locations due to substantial rainfall in the past week.
More than two centuries of trying to control the Mississippi with engineering and trying to protect New Orleans from floods and storms has made the city more vulnerable to severe weather—which is exactly what gets more likely with climate change .Levees along the Mississippi and its intersecting rivers, as well as channels for navigation and all kinds of other engineering, make the river as important to North America’s economy as it is to the continent’s hydrology.
Hotspots in the North Island are currently found in Aupouri Peninsula, interior Manawatu-Whanganui, and interior Hawke’s Bay. In the South Island, only subtle soil moisture changes were observed in the past week.
A weekly update describing soil moisture across the country to help assess whether severely to extremely dry conditions are occurring or imminent. Due to the anticipated rainfall amounts over the next week, soil moisture levels will likely increase at least slightly across much of the North Island.