Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

Atmospheric river hits NZ


An atmospheric river spanned from the Indian Ocean to New Zealand on Thursday, leading to huge rainfall totals along the West Coast and Southern Alps, according to NIWA meteorologist Ben Noll.

Atmospheric rivers are long, narrow regions in the atmosphere – like rivers in the sky – that transport most of the water vapour outside of the tropics in this case toward New Zealand.

Mr Noll said the “river” was influenced by an active pulse in the Madden-Julian Oscillation - a pulse of cloud and rainfall in the tropics that contributes to extreme weather events on a global scale.

Ivory Glacier on the West Coast received the most rain between 12am on Wedensday and 9am today, with 652mm falling there. That is more rain than Christchurch receives each year.

Top rainfall total (12am Wed-9am Fri):

Ivory Glacier (1390m): 652 mm

Ivory Glacier rainfall total as a % of annual normal rainfall for the main centres:

-Christchurch (Airport): 110% (annual normal rainfall: 594 mm)
-Dunedin (Musselburgh): 88% (annual normal rainfall: 738 mm)
-Hamilton (Ruakura): 58% (annual normal rainfall: 1118 mm)
-Auckland (Mangere): 58% (annual normal rainfall: 1125 mm)
-Tauranga (Airport): 55% (annual normal rainfall: 1189 mm)
-Wellington (Kelburn): 54% (annual normal rainfall 1215 mm)

Other totals (12am Wed-11am Fri):

High elevation
Mt Philistine: 508 mm
Arthurs Pass: 397 mm
Mt Cook: 351 mm

Low elevation
Greymouth: 121 mm
Hokitika: 121 mm
Westport: 69 mm

The next few weeks see frequent high pressure systems affecting New Zealand, with rainfall that is normal or below normal for most of the South Island. Parts of the North Island, however, may contend with a few bouts of heavy rainfall before the end of November. Temperatures are expected to run average or above average with another very warm spell coming for eastern areas later next week.

ends

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 

Grey Power: Is Disappointed To Learn Of More Bank Closures

Many older people are being left without essential services because of cost cutting and the march of modern technology. It is now expected that most banking transactions can occur via the internet or telephone. Jan Pentecost, President of the Grey Power ... More>>

ALSO:

Economy: Supply Chain On Brink Of Overload Says National Road Carriers

The New Zealand supply chain is on the brink of overload and it looks like the upcoming peak imports season may push it over the edge says National Road Carriers Association (NRC) CEO David Aitken. “Worldwide supply chains are in disarray,” says Mr Aitken. ... More>>

Retail: Supermarkets Announced As Government’s Second Market Study

The Government has today launched a market study to ensure New Zealanders are paying a fair price for groceries. More>>

ALSO:

Statistics New Zealand: Retail Sales Recover In The September 2020 Quarter

Retail sales values recorded the largest September quarter rise since the series began in 1995, Stats NZ said today. Spending on major household items, vehicles, and groceries contributed to the strong 7.4 percent ($1.8 billion) rise in total ... More>>

Kea Aerospace: New Zealand Flies Into The Stratosphere

Development has started on a solar-powered, unmanned aircraft that can fly in the stratosphere continuously for months at a time. The zero-emission aircraft will carry a suite of imagery equipment that will be game-changing for many industries, vastly ... More>>

Stats NZ: Births And Deaths: Year Ended September 2020

Births and deaths releases provide statistics on the number of births and deaths registered in New Zealand, and selected fertility and mortality rates. Key facts For the year ended September 2020: 57,753 live births and 32,670 deaths ... More>>

ALSO:


Forest & Bird: Kākāpō Wins Bird Of The Year 2020

The nation has voted and Aotearoa New Zealand has a new Bird of the Year. New Zealand’s moss-colored flightless parrot has climbed to the top-spot for the second time in Forest & Bird’s annual Te Manu Rongonui o Te Tau/Bird of the Year competition. ... More>>