A very warm and dry month
A year of weather extremes across New Zealand
Four seasons with a little bit of everything. It started with the bummer summer… then came the fires, rain, flooding and a very weird November. But it’s all in a year of weather as NIWA wraps up the seasonal highlights.
If history is anything to go by, Wellington and Christchurch are the main centres most likely to experience a dry Christmas Day, while Auckland and Hamilton are the least likely. That’s according to a new climate study undertaken by NIWA meteorologist Ben Noll.
Equal second-warmest spring on record for New Zealand
Hot in the south and dry countrywide to end spring
More than 50 “weather detectives” from 20 countries will be in Auckland next week to share their experiences saving snippets of meteorological history that will ultimately help scientists better understand the processes of climate variability and change.
A weekly update describing soil moisture across the country to help assess whether severely to extremely dry conditions are occurring or imminent. Regions experiencing these soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.
Does climate change affect the position of the Subtropical Front around New Zealand? This has important consequences for New Zealand's climate and biological productivity.
A very dry and warm month for the South Island interior
The tropical Pacific is still officially in a ENSO (El Niño Southern Oscillation) neutral state, but some indicators have leaned more towards La Niña conditions during the course of October 2017.
A large area of high pressure will take up residence east of New Zealand for the next few days, bringing more unusual springtime warmth to parts of the South Island from tomorrow through to late next week, says NIWA forecaster Seth Carrier.
An immense dome of high pressure stretched across the Tasman Sea onto the South Island yesterday, bringing the highest temperatures across New Zealand since April.
A wet month for many and warm on the eastern coasts.
Many atmospheric and oceanic indicators in the tropical Pacific are on the La Niña side of neutral, although not yet strong enough to reach La Niña thresholds.
Most New Zealanders can be confident of a dry trip to the polling booth on Saturday, according to NIWA meteorologist Seth Carrier.

Outlook: August - October 2017

August – October 2017 temperatures are forecast to be above average for all regions of New Zealand, with high confidence (55-70% chance for above average temperatures). Nevertheless, frosts and cold snaps will occur during the remainder of winter and in early spring. Coastal water temperatures around New Zealand are forecast to remain above average over the next three-month period.

Global setting: July 2017

ENSO (El Niño – Southern Oscillation) neutral conditions (neither El Niño nor La Niña) continued in the tropical Pacific during July 2017, but this month mixed signals were again present. In particular, some atmospheric patterns have been recently leaning more towards weak La Niña conditions.


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