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

 


Climate Summary: A mild winter for much of the country

Full summary: Climate_Summary_Winter_2014_2.docx



A mild winter for much of the country.

TemperatureIt was a mild winter for much of the country, but especially for the South Island where winter temperatures were predominantly above average (0.5 to 1.2°C above average). The exception was parts of Central Otago, where winter temperatures were well above average (more than 1.2°C above average), and isolated parts of mid-Canterbury, where near average winter temperatures were observed (within 0.5°C of average). Winter temperatures were above average or near average across the entire North Island.
RainfallThere was a notable dichotomy of winter rainfall anomalies experienced within both the North and South Islands. In the North Island, winter rainfall was well above normal (more than 149% of normal) throughout Northland, yet it was below normal (50-79% of normal) for a number of central, eastern and southern parts. In the South Island, winter rainfall was above normal (120-149% of normal) in Arthur’s Pass, Mount Cook National Park and Wanaka. In contrast, winter rainfall was below normal for the majority of the eastern South Island.
SunshineWinter sunshine was abundant for much of Waikato, North Canterbury, the Mackenzie Country, the Southern Lakes and Central Otago where winter sunshine was above normal (110-125% of normal), and in some cases well above normal (more than 125% of normal). In contrast, parts of southern Wairarapa received below normal winter sunshine (75-89% of normal).
Soil moistureAt the start of winter, soils were drier than normal for parts of Northland, Auckland, northern Gisborne, the Central Plateau and Hawke’s Bay, whereas they were wetter than normal throughout the eastern South Island, the Southern Lakes and Central Otago. As of 1 September 2014 soil moisture levels were near normal for large parts of the country. The exception was parts of Taranaki, the West Coast and Tasman as well as the districts of Selwyn, Waimakariri and Timaru, where soils were slightly drier than normal for the time of year.

Overview

Overall, winter 2014 was characterised by mean sea level pressures that were higher than normal over and to the west of New Zealand. This resulted in an anomalous westerly flow across most of the country with the exception of the north of the North Island where anomalous easterly flow occurred. These westerly and easterly flow anomalies respectively contributed to the difference in rainfall anomalies observed across New Zealand during the season, with eastern parts of the South Island observing a drier than normal winter and Northland observing a winter that was much wetter than normal. Notably, it was an exceptionally warm start to winter. In June 2014, a north-easterly flow anomaly dominated across the country, and this was a contributing factor to what was New Zealand’s warmest June on record.

As noted above, winter temperatures across the country were mild overall. The season started out extraordinarily warm, however temperatures returned to near-normal in July and August. Winter was especially mild for the South Island where temperatures were predominantly above average (0.5 to 1.2°C above average). Additionally, some parts of Central Otago observed winter temperatures that were well above average (more than 1.2°C above average). An exception was isolated parts of mid-Canterbury and coastal Marlborough, where near average winter temperatures were observed (within 0.5°C of average). In the North Island, winter temperatures were above average in parts of Northland, Auckland, Waikato, Bay of Plenty, Gisborne, Hawke’s Bay, Manawatu and Wellington, with near average temperatures across the remainder of the island. The nation-wide average temperature in winter 2014 was 9.1°C (0.8°C above the 1971-2000 winter average from NIWA’s seven station temperature series which begins in 1909) [interim value].

There was a notable difference in winter rainfall anomalies experienced within both the North and South Islands. In the North Island, winter rainfall was well above normal (more than 149% of normal) throughout Northland, yet rainfall was below normal (50-79% of normal) in southern Waikato, Hawke’s Bay, Manawatu and the Kapiti Coast. In the South Island, winter rainfall was above normal (120-149% of normal) in Arthur’s Pass, Mount Cook National Park, Wanaka and south-western parts of Southland. In contrast, rainfall was below normal for large parts of the eastern South Island. Areas around Blenheim, Kaikoura, Christchurch, Timaru and Dunedin only received approximately half to two-thirds of normal winter rainfall. Winter rainfall was near normal for remaining areas of the South Island.

At the start of winter, soils were drier than normal for parts of Northland, Auckland, northern Gisborne, the Central Plateau and Hawke’s Bay, whereas they were wetter than normal throughout the eastern South Island, the Southern Lakes and Central Otago. As of 1 September 2014 soil moisture had returned to near normal levels for large parts of the country. The exception was parts of Taranaki, the West Coast and Tasman as well as the districts of Selwyn, Waimakariri and Timaru, where soils were slightly drier than normal for the time of year.

Winter sunshine was abundant for much of Waikato, North Canterbury, the Mackenzie Country, the Southern Lakes and Central Otago where winter sunshine was above normal (110-125% of normal), and in some cases well above normal (more than 125% of normal). In contrast, parts of southern Wairarapa received below normal winter sunshine (75-89% of normal). Remaining areas of New Zealand observed near normal winter sunshine totals (within 10% of normal).

Full summary: Climate_Summary_Winter_2014_2.docx

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Reserve Bank: Labour Calls For Monetary Policy To Expand Goals

Labour's comments follow a speech today by RBNZ governor Graeme Wheeler in which Wheeler sought to answer critics who variously say he should stop lowering interest rates, lower them faster, or that inflation-targeting should no longer be the primary goal of the central bank's activities. More>>

ALSO:

BSA Extension And Sunday Morning Ads: Digital Convergence Bill Captures Online Content

Broadcasting Minister Amy Adams has today announced the Government’s plans to update the Broadcasting Act to better reflect today’s converged market... The Government considered four areas as part of its review into content regulation: classification requirements, advertising restrictions, election programming and contestable funding. More>>

ALSO:

March 2017: Commerce Commission Delays Decision On Fairfax-NZME

The Commerce Commission has delayed its decision on the proposed merger between NZME and Fairfax Media's New Zealand assets, saying the deal is complex and it needs more time to assess the impact on both news content and the advertising market. More>>

ALSO:

Plan Plan: Permanent Independent Hearings Panel Proposed For Planning

The Productivity Commission recommends creating a permanent independent hearings panel like the one that cut through local politics to settle Auckland’s Unitary Plan, for the whole country. More>>

ALSO:

Statistics: NZ Jobless Rate Falls To 5.1% Under New Methodology

New Zealand's unemployment rate fell more than expected in the second quarter as Statistics New Zealand adopted a new way of measuring the labour market to bring the country in line with international practices, and while a growing economy continued to support jobs growth. More>>

ALSO:

Eggs-it Strategy: Countdown Programme For Free Range And Barn Launches

Countdown has today launched an Egg Producer Programme to support free range and barn egg farmers to increase the supply available for Countdown stores and our customers. More>>

ALSO:

LVRs: Banks Get An Extra Month To Meet New Lending Restrictions

The Reserve Bank won't impose new lending restrictions for highly-leveraged investment purchases until the start of October, giving lenders an extra month to clear their backlog of pre-approvals. More>>

ALSO:

Commerce Commission: Charges Against Youi Insurance

The Commerce Commission has filed charges in the Auckland District Court against insurance firm Youi NZ Pty Limited, alleging it employed misleading sales techniques when attempting to sell policies to consumers who were only seeking a quote. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news