What are the wind zones in NZ?

What are the wind zones in NZ?

NZS 3604 divides New Zealand into two wind regions (A and W) and several lee zone areas – these are areas where the landforms create localised wind acceleration resulting in higher wind speeds than the rest of the region.

What is a high wind zone NZ?

Low: Wind speeds below 32 metres per second. Medium: 37 metres per second. High: 44 metres per second. Very high: 50 metres per second. Extra high: 55 metres per second.

What is the windiest place in New Zealand?

Wellington
Windiest City on Earth: Wellington, New Zealand The strongest gust ever recorded in Wellington (125 mph) was on that hill. The winds in this region are called the “Roaring Forties” because the city is located 40 to 50 degrees south of the equator.

How do I find my wind zone?

Your mobile home’s wind zone rating is listed on the HUD data plate. The data plate is a large paper sticker that can be found on the inside of a kitchen cabinet door, inside the door to the electrical panel, or on the wall of a closet. If you can’t find your HUD data plate, there is one more option.

What does wind zone 1 mean?

Wind Zone I equates to a 70-mph fastest-mile wind speed. Wind Zone II equates to a 100-mph fastest-mile wind speed. Wind Zone III equates to a 110-mph fastest-mile wind speed. Manufactured Housing Institute.

What is a high wind zone?

High wind zone = wind speed of 44 m/s. Very high wind zone = wind speed of 50 m/s.

What is the coldest month in New Zealand?

July
The coldest month is usually July and the warmest month is usually January or February. In New Zealand generally there are relatively small variations between summer and winter temperatures, although inland and to the east of the ranges the variation is greater (up to 14°C).

Where is the safest place in NZ?

Selwyn District
The Selwyn District is the safest place in New Zealand based on crime statistics.

What is the difference between wind zone 1 and 2?

Wind Zone I equates to a 70-mph fastest-mile wind speed. Wind Zone II equates to a 100-mph fastest-mile wind speed.

How are wind zones determined in New Zealand?

This describes a six-step process. The first step is to identify the wind region for the building from NZS 3604:2011 Figure 5.1. This map divides the country into two wind regions – A and W – based on wind speed data from the New Zealand MetService.

How to identify the wind region for a building?

The first step is to identify the wind region for the building from NZS 3604:2011 Figure 5.1. This map divides the country into two wind regions – A and W – based on wind speed data from the New Zealand MetService.

How many climate stations are there in New Zealand?

The National Institute of Water and Atmospheric Research (NIWA) provides climate station data for its 30 climate stations throughout New Zealand, which includes wind speeds, number of gale days per month, and wind roses (diagrammatic representation of historical wind patterns).

When to use a wind multiplier in NZS 3604?

Where the zone is not high (H), the multiplier for the relevant wind zone is used to calculate the correct wind bracing demand. Where wind zone is above extra high (from Table 5.4), the wind zone is SED or specific engineering design and is beyond the scope of NZS 3604.