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

 

Scoop Business: Fonterra Slashes 2015 Milk Payout, Earnings Tumble 76%

Fonterra Cooperative Group cut its forecast 2015 milk price payout by about 12 percent, citing weaker global dairy prices and said there is a risk of further declines given strong global milk production. More>>

ALSO:

Scoop Business: RBNZ Keeps OCR At 3.5%, Signals Slower Pace Of Future Hikes

Reserve Bank governor Graeme Wheeler kept the official cash rate at 3.5 percent and signalled he won’t be as aggressive with future rate hikes as previously thought as inflation remains tamer than expected. The kiwi dollar fell to a seven-month low. More>>

ALSO:

Weather: Dry Spells Take Hold In South Island

Many areas in the South Island are tracking towards record dry spells as relatively warm, dry weather that began in mid-August continues... for some South Island places, the current period of fine weather is quite rare. More>>

ALSO:

Scoop Business: Productivity Commission To Look At Housing Land Supply

The Productivity Commission is to expand on its housing affordability report with an investigation into improving land supply and development capacity, particularly in areas with strong population growth. More>>

ALSO:

Forestry: Man Charged After 2013 Death

Levin Police have arrested and charged a man with manslaughter in relation to the death of Lincoln Kidd who was killed during a tree felling operation on 19 December 2013. More>>

ALSO:

Smells Like Justice: Dairy Company Fined Over Odour

Dairy company fined over odour Dairy supply company Open Country Dairy Limited has been convicted and fined more than $35,000 for discharging objectionable odour from its Waharoa factory at the time of last year’s ”spring flush” when milk supply was high. More>>

Scoop Business: Dairy Product Prices Decline To Lowest Since July 2012

Dairy product prices dropped to the lowest level since July 2012 in the latest GlobalDairyTrade auction, led by a slump in rennet casein and butter milk powder. More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus

Standards New Zealand

Standards New Zealand

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