Last updated 09:06, June 11 2018
National Weather for Mon 11th June.
Another bout of severe weather is closing in on the upper North Island, just a week after torrential rains caused flooding to northern and eastern areas.
MetService is warning of a risk of further damage to parts of the Gisborne region hit by floods on Queen's Birthday Monday, while gusts could reach 90kmh in exposed parts of Auckland on Monday afternoon and Tuesday.
"It's going to pick up later today," MetService meteorologist Mark Todd said. "It is a significant system and it's going to bring another bout of severe weather to the upper North Island.
"We've gone from cold southwesterlies with the last system, and snow, to basically another deep subtropical low coming down," Todd said.
A week after a family had to be rescued from the roof of a house near Tolaga Bay, heavy rain is again closing in on the Gisborne region.
The system would bring heavy rain into Gisborne from Monday afternoon, through into Tuesday. The heavy rain would move south into Hawke's Bay from Monday evening.
There could also be bursts of heavier rain further to the west for places such as Northland, Auckland and Bay of Plenty.
Winds would also continue to strengthen during the day, Todd said. There was a warning for severe gales coming off the ranges of the eastern Bay of Plenty, with gusts possibly reaching 120kmh.
There's also a chance winds could approach severe gale strength in exposed parts of Coromandel Peninsula and eastern Waikato north of Putaruru during Monday and Tuesday.
The severe weather is the result of a deepening subtropical low that has been moving south toward New Zealand. By midnight it is expected to be sitting offshore from Bay of Plenty, and make landfall somewhere in that area around midday Tuesday.
The deepening subtropical low bringing heavy rain and severe gales is expected to be to the east of Northland by lunchtime Monday.
In the main centres Auckland could have southeasterly gales, gusting to 90kmh, from Monday afternoon, and showers could turn to rain, MetService said. The temperatures is expected to get to just 14 degrees Celsius. The gales and rain could last through until Tuesday afternoon.
Scattered rain is expected to develop in Wellington during Monday, with southeasterlies becoming strong and a high of 13C.
Christchurch is headed for just 10C on Monday, with light rain or drizzle and southerlies.
Forestry slash surrounds a house inland from Tolaga Bay, following flooding a week ago.
Patchy rain or drizzle is possible in coastal Marlborough, Canterbury, southern Westland and coastal Otago. The rest of the South Island should be dry, with Invercargill expecting sunshine, morning frosts, light winds and a 10C high.
LONG WEEKEND DELUGE
The imminent arrival of this latest bout of heavy rain and severe gales follows the downpours, slips and flooding that disrupted the Queen's Birthday long weekend a week ago in the north of the country.
Northland, Auckland, Coromandel Peninsula and Bay of Plenty were hit by heavy rain eight days ago, on Sunday, June 4.
Snow conditions closed the Desert Road for a time last week.
That was followed by torrential overnight rain that brought huge volumes of forestry slash - scrap timber, branches and off cuts left behind in felling areas - down narrow valleys in the Gisborne region.
At least three houses were lost. Stock was lost. Bridges were damaged, paddocks were drowned in mud and debris and kilometres of fences were damaged.
Among the worst affected was the Mitchell family, who were forced to clamber onto their roof as their home began to flood in the early hours of the morning on Queen's Birthday Monday.
The Lindis Pass was also closed by snow during the week.
The clean-up in Gisborne from that event is expected to cost $10 million.
The flooding a week ago was followed by a bout of freezing weather from the south, bringing snow to as low as 200m in parts of the South Island late Tuesday and early Wednesday. There was even a dusting of snow to sea level in Dunedin.
Snow also fell to low enough levels in the North Island during the week that the Desert Road and Napier-Taupō Road were closed for a time. Then on Thursday there was more snow in the South Island, although not to the low levels of earlier in the week.