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

 


NIWA’s storm information update

NIWA Media Release 21 June 2013
NIWA’s storm information update


• NIWA has been measuring wave height from a buoy two kilometres off Baring Head, Wellington, since 1995. Last night’s waves are the largest seen in that record.

• Last night, the highest waves measured were typically 15 metres, from peak to trough, for the period around midnight last night.

• Anecdotal information records the wave height at the time of the Wahine disaster at 12 to 14 metres.

How do the winds in Wellington associated with yesterday’s storm compare with winds from other storms over the last 50 years?

• Long term wind measurements have been taken at Wellington Airport since 1960, making it a reliable site to gauge the force of southerly storms as it is exposed directly to the southerly wind.

• The maximum 10 minute average, sustained wind reading, recorded at the airport was 101km/hour, with individual gusts typically up to 130-140 km/hour.


• These measurement show that last night’s storm is in the same category as five other major storms recorded in 1961, 1965, 1967, 1974, 1977 and 1985.

• The maximum 10 minute average, sustained wind reading during the Wahine disaster was measured at 144 km/hour and stand out by far as the strongest in the 50 years of the record.

• So this was an extreme event, but still not as intense as the Wahine storm.

How severe is the snow storm?

• The largest snow storm on record in the central South Island was registered in 1973.

• Snow depth recorded by NIWA staff at Methven yesterday was 99mm compared with 610mm snow depth measured in 1973.

• At Lake Tekapo, the snow depth of 600mm measured yesterday was similar to the 670mm measured in 1973.

• The snow depth recorded on the inland road near Waiau yesterday was 229mm, slightly more than the 161mm recorded last year.

Please credit the graph to NIWA and attribute the release Dr Murray Poulter.

ENDS

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Media: Julian Wilcox Leaves Māori TV

Māori Television has confirmed the resignation of Head of News and Production Julian Wilcox. Mr Maxwell acknowledged Mr Wilcox’s significant contribution to Māori Television since joining the organisation in 2004. More>>

ALSO:

Genetics: New Heat Tolerant Cow Developed

Hamilton, New Zealand-based Dairy Solutionz Ltd has led an expert genetics team to develop a new dairy cow breed conditioned to thrive in lower elevation tropical climates and achieve high milk production under heat stress. More>>

Fractals: Thousands More Business Cards Needed To Build Giant Sponge

New Zealand is taking part in a global event this weekend to build a Menger Sponge using 15 million business cards but local organisers say they are thousands of business cards short. More>>

Scoop Business: NZ Net Migration Rises To Annual Record In September

New Zealand’s annual net migration rose to a record in September, beating government forecasts, as the inflow was spurred by student arrivals from India and Kiwis returning home from Australia. More>>

ALSO:

Scoop Business: Fletcher To Close Its Christchurch Insulation Plant, Cut 29 Jobs

Fletcher Building, New Zealand’s largest listed company, will close its Christchurch insulation factory, as it consolidates its Tasman Insulations operations in a “highly competitive market”. More>>

ALSO:

Scoop Business: Novartis Adds Nine New Treatments Under Pharmac Deal

Novartis New Zealand, the local unit of the global pharmaceuticals firm, has added nine new treatments in a far-ranging agreement with government drug buying agency, Pharmac. More>>

ALSO:

Crown Accounts: English Wary On Tax Take, Could Threaten Surplus

Finance Minister Bill English is warning the tax take may come in below forecast in the current financial year, as figures released today confirm it was short by nearly $1 billion in the year to June 30 and English warned of the potential impact of slumping receipts from agricultural exports. More>>

ALSO:

Get More From Scoop

 
 
Standards New Zealand

Standards New Zealand

Mosh Social Media
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news