Climate

Spare a thought for Fieldays exhibitors putting the final touches to their stands tomorrow – it’s going to be wet.
A warm start to autumn, then cooler and unsettled at times.
Warm and dry to start, followed by cooler and unsettled conditions.
ENSO-neutral conditions persisted in the tropical Pacific during May 2018. The Southern Oscillation Index (SOI) was positive at about +0.3 during the past 30 days. Sea surface temperatures (SSTs) in the central and eastern equatorial Pacific Ocean warmed for the second consecutive month and are now near or slightly above average for the time of year.
We've got hot temperatures, we've got cold temperatures, freezing temperatures, ice, snow, hail, rain - and even a few rays of sunshine. And one very confused weather pattern.
What happened in April, how our climate outlook for the previous three months turned out, global and local sea temperatures, and our outlook for May-July.
Two large storms bring destruction to parts of New Zealand
NIWA has carried out aerial surveys of over 50 of the South Island’s glaciers every year for more than four decades.
Less than a week before the official end of summer on 28 February, temperatures dropped and a cool breeze made a whistle-stop tour of the country.
Massive increases in computing power are allowing NIWA scientists to not only analyse more data, faster, but also to envisage completely new experiments.
Improved climate information for Vanuatu

NIWA and Vanuatu's Meteorology and Geohazards Department have installed a network of fully automatic weather stations across Vanuatu. Data from the weather stations will help the country understand climate related risks such as extreme weather, flood prediction and drought.

How a regional climate history helped save a farm and cure depression
Weak La Niña conditions continued in the tropical Pacific during March 2018, but trends in low-level winds and in sub-surface ocean temperatures during the month indicate that the event is coming to an end.
New Zealand is situated in the latitudes of prevailing westerlies and exposed coastal locations often experience strong winds, with generally lighter winds elsewhere.
Easter Sunday offers the best weather of the long holiday weekend, according to NIWA forecaster Maria Augutis - but the rest of the break isn’t looking too bad either.

Twice a day at 1pm and 8.30 pm Sean Hartery, NIWA, and Peter Kuma, University of Canterbury, head for the Fantail at the very back of the ship to release their weather balloons.

Climate scientists and glaciologists are taking to the skies this week to find out how New Zealand’s glaciers are faring following this summer’s record-breaking warmth.
Two ex-tropical cyclones impact New Zealand
New Zealand's hottest summer on record.
With La Niña’s influence waning over the next three month period, New Zealand’s regional climate over March – May 2018 is expected to be driven by the warmer than average ocean waters that are present around the country.
Despite a sub-tropical storm and two ex-tropical cyclones, this summer is about to become the hottest in history.
Auckland region climate change projections and impacts | Auckland Council

Auckland Council and Council Controlled Organisations commissioned NIWA to provide climate change projections, including high-resolution maps for the Auckland Region.

Apart from waning La Niña conditions, New Zealand’s regional climate over the next three month period is expected to be dominated by the very warm ocean waters present around the country, in the Tasman Sea, and in the Southwest Pacific Ocean.
January 2018 was New Zealand’s hottest month on record (since 1909) using NIWA’s seven-station series. Dozens of locations observed their record or near-record high mean temperature for January.

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