Top Scoops

Book Reviews | Gordon Campbell | Scoop News | Wellington Scoop | Community Scoop | Search

 

Summer hottest on record - and it's not over yet

Summer hottest on record - and it's not over yet

It's official - this summer is already the hottest on record, with four days still to go, according to new data from the climate agency Niwa.

Summer temperatures have been 2.3°C hotter than average, 0.5° above the previous record, which dated back more than 80 years.

Niwa meteorologist Ben Noll said with summer not yet ended, it was likely the record-breaking average would push higher.

The big driver has been the marine heatwave - a signature of La Niña weather pattern.

"Our oceans around New Zealand have featured excessively warm conditions in the order of of two to four degrees above average and in some pockets six or seven degrees above average.

"As an island nation, as the seas go, we go."

These freakishly warmer seas, together with northerly winds from the tropics and sub-tropics, have ratcheted up the temperature and that was expected to continue through autumn, he said.

However, climate change was definitely a factor.

"If you had the same conditions, the same atmospheric set-up two or three decades ago, it's unlikely you would have experienced the anomalies or the difference from average being quite as extreme as it was in 2017/2018.

"And that's indicative of the long-term trend of global climate change, global warning."

New Zealand could expect to see increasing numbers of heatwaves and droughts in the coming decades, he said.

The country may continue to bask in warmer temperatures through autumn because because oceans cool more slowly than land.

"But this can also mean more fuel for weather systems [storms] tracking towards New Zealand from the tropics and sub-tropics....

"Sometimes it's too dry, sometimes it's too wet. This summer we've experienced both of those extremes."

Summer standouts so far:
• Across New Zealand 108 places recorded their hottest summer on record, 21 their second hottest and eight their third hottest.
• In Alexandra on 30 January the temperature reached 38.7°. On the same day Clyde got to 37.6°, Middlemarch 37.4° and Cheviot 37.3° - together these comprise the hottest temperatures of summer.
• Wellington has had 17 days above 25° this summer - the average is two.
• Auckland usually has 29 summer days above 25°, this year there have been 47 - the highest since records began at Auckland Airport in 1966.
• Invercargill recorded three consecutive days over 30° in January. It's never done that for two days in a row, let alone three.
• Cromwell has topped 25° for 56 days - normal is 35 days.
• Dew point temperature - the meteorological measurement combining humidity and temperature - failed to drop below 19° in Auckland from 10 - 15 February, making it a rare 115-hour period of very high humidity.
• In Wellington, there was a dew point temperature of 22° at 6pm on 11 February, the highest dew point on record for the city.
• Mahia, Appleby and Waipara West have had their wettest summers on record.

© Scoop Media

 
 
 
Top Scoops Headlines

 

Gordon Campbell On Labour’s Timidity:

What an odd post-Cabinet press conference that was yesterday, from PM Jacinda Ardern and Finance Minister Grant Robertson ... More>>

Gordon Campbell: On The Prevailing Media Narratives About The Govt Coalition

The media reports the facts…. but that’s not the end of it, and nor should it be. It also marshals those facts and creates a story from them, usually one with a moral that’s implied or explicit. After six months though, it is still unclear just what the dominant media narrative is of the coalition government. Is it Idealistic But Impractical? Is its Heart in the Right Place, but is it Taking On Too Much? Is the coalition proving to be Fractious And Unstable, or is it Surprisingly Adept at Keeping Its Inherent Rifts Out of the Public Eye? More>>

RNZ Explainer: Why You Should Care About Cambridge Analytica

Facebook's shares have lost billions of dollars in value after something to do with data used by Cambridge Analytica. Confused? Here's what it means, and what could come next...More>>


Gordon Campbell: On The (Looming) Nurses’ Strike

It is (almost) possible to feel a bit sorry for the DHB negotiators engaged in the current nurses pay round. Come next Monday there’s every sign that nurses will resoundingly reject the pay offer the DHBs have put on the table, as being totally inadequate...More>>

Gordon Campbell: On A Trade War With China

As things currently stand, the White House has NOT included New Zealand on its list of allies whose steel and aluminium exports to the US will be exempted from US President Donald Trump’s recent hike in tariffs. More>>

Gordon Campbell: On Credibility In Politics

Credibility is always such a fickle, unstable element in politics. You know it when you see it, though. More>>

Video And Report: Cory Doctorow Talks Machine Learning And Big Data

International internet and digital technology commentator Cory Doctorow talked about machine learning and big data at the Privacy Commissioner’s PrivacyLive event on 13 March 2018 in Wellington. More>>

 
 
 
 
 
 
 
 
  • PublicAddress
  • Pundit
  • Kiwiblog