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

 


Severe thunderstorm watch Wellington, Wairarapa, Marlborough

[See original link for updates]

Severe Thunderstorm Watch

Valid to: 8:00pm Thursday 17 Jan 2013
Issued at: 9:35am Thursday 17 Jan 2013

SEVERE THUNDERSTORM WATCH

Issued by MetService at 09:35 am Thursday 17 January 2013
Valid until 08:00 pm Thursday 17 January 2013
This watch affects people in the following weather forecast districts:
Wairarapa
Wellington
Marlborough

Thunderstorms are expected to develop on and behind a southerly change that is expected to reach Kaikoura about midday and move over the southern North Island this afternoon. There is the possibility of some of these thunderstorms being SEVERE due to large hail (greater than 20mm diameter) and damaging wind gusts (110km/hr or more) occurring. Large hail can cause significant damage to crops, orchards, vines, glasshouses and vehicles, as well as make driving conditions hazardous. Wind gusts of this strength can cause some structural damage, including trees and power lines, and may also make driving hazardous. The risk of thunderstorms diminishes this evening and it is unlikely that SEVERE storms will continue beyond about 4pm in the south and 8pm in the north.


Issued by: Allister Gorman

This watch will be updated by: 02:00 pm Thursday 17 January 2013

Severe Thunderstorm Criteria

MetService uses the following criteria for severe thunderstorms in New Zealand:

Heavy rain (from thunderstorms):

Rainfall of 25 millimetres per hour, or more.

Large hail:

Hailstones 20 millimetres in diameter, or larger.

Strong wind gusts (from thunderstorms):

Gusts of 110 kilometres per hour (60 knots) or stronger.

Damaging tornadoes:

Fujita F1 (wind speeds greater than 116 kilometres per hour (63 knots)) or stronger.

Note: some tornadic systems such as funnel clouds, waterspouts and small land-based tornadoes are possible with thunderstorms that may not be classified as severe.


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