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

 

Interest Rates: Wheeler Hikes OCR To 3% On Inflationary Pressures, Eyes Kiwi

Reserve Bank governor Graeme Wheeler lifted the official cash rate for the second time in as many months, saying non-tradable inflationary pressures were "becoming apparent" in an economy that’s picking up pace and he's watching the impact of a strong kiwi dollar on import prices. More>>

ALSO:

Scoop Business: Equity Crowd Funding Carries Risks, High Failure Rate

Equity crowd funding, which became legal in New Zealand this month, comes with a high risk of failure based on figures showing existing forays into social capital have a success rate of less than 50 percent, one new entrant says. More>>

ALSO:

Scoop Business: NZ Migration Rises To 11-Year High In March

The country gained a seasonally adjusted 3,800 net new migrants in March, the most since February 2003, said Statistics New Zealand. A net 400 people left for Australia in March, down from 600 in February, according to seasonally adjusted figures. More>>

ALSO:

Hugh Pavletich: New Zealand’s Bubble Economy Is Vulnerable

The recent Forbes e-edition article by Jesse Colombo assesses the New Zealand economy “ 12 Reasons Why New Zealand's Economic Bubble Will End In Disaster ”, seems to have created quite a stir, creating extensive media coverage in New Zealand. More>>

ALSO:

Thursday Market Close: Genesis Debut Sparks Energy Rally

New Zealand stock rose after shares in the partially privatised Genesis Energy soared as much as 18 percent in its debut listing on the NZX, buoying other listed energy companies in the process. Meridian Energy, MightyRiverPower, Contact Energy and TrustPower paced gains. More>>

ALSO:

Power Outages, Roads Close: Easter Storm Moving Down Country

The NZ Transport Agency says storm conditions at the start of the Easter break are making driving hazardous in Auckland and Northland and it advises people extreme care is needed on the regions’ state highways and roads... More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news