What To Gather

Met information is all around you. Just as important as getting the official information, is taking notice of the weather around you.

General Met information is available on television and radio. The internet is also a rich source of Met information, both for aviation Met and general Met, particularly www.metservice.co.nz. Webcams are also a popular source of weather information, but they can easily lead you astray if you are not careful.

So long as the information is current, all sources of Met information can be used to help you build the big picture.

Specific aviation Met briefings are available from the following sources.

MetFlight GA

The best source of preflight Met information is MetFlight GA.

http://metflight.metra.co.nz

MetFlight GA is the MetService web site that provides aviation Met for non-commercial use. The web-based aviation weather briefing system is intended primarily for general aviation and flight training organisations in New Zealand.

The information available and the functions provided include: a situation statement, satellite pictures, weather radar, analysis and prognosis charts, low cloud and rain forecasts, SIGMET, ARFOR, TAF, METAR, METAR AUTO, and SPECI reports.

IFIS

www.ifis.airways.co.nz

IFIS is provided by Airways New Zealand. This is the online location for obtaining NOTAMs, current ATIS reports for attended aerodromes, and filing flight plans. There is a link at the bottom of the IFIS page to the MetFlight site.

What to Get

As there are so many sources of weather information available, the first challenge is simply knowing where and how to look for the weather information you need.

Below is a list of the Met information you should use when preparing for and flying a VFR flight.

A guide to the abbreviations can be found here.

Aviation Met Information

When to Use

Type of Information

Aviation Weather Product

Coverage and Content

Pre-flight

Overview

NZ Situation,

Surface weather charts,

Satellite pictures and radar imagery.

New Zealand and Tasman Sea ­– the big picture of the major weather elements

Warnings

SIGMET, VAA, VAG

NZZC FIR – details of hazardous weather

Enroute

ARFOR

Intended route and alternate routes – forecast for each area

Aerodrome

TAF
METAR/METAR AUTO/SPECI
BWR*

Departure, destination and alternate aerodromes – forecasts and reports

In-flight

Warnings and aerodromes

SIGMET,
Amended TAF,
METAR/METAR AUTO/SPECI,
BWR*, ATIS*, VAA.

Update of pre-flight information, hazardous weather, and destination and alternate aerodrome updates.

* To supplement METAR/SPECI reports, or as a general information source in the absence of METAR/SPECI from the aerodrome(s) concerned. Air pressure information in a BWR will be QFF not QNH.

Invercargill

Above mean sea level

TCu

Towering Cumulus

agl

above ground level

Cb

Cumulonimbus

Flight Information Service communications

ATS

Air Traffic Service

Royal New Zealand Air Force

in vicinity of aerodrome Thunderstorm

ATC

Air Traffic Control

VC

in vicinity of aerodrome

Probabilityxx%

TIL

Until

FM

From

Becoming

Temporarily

Routine air report from aircraft in flight

FIR

Flight Information Region

Internet Flight Information Service

VFR

Visual flight rules

Automatic Terminal Information Service

BWR

Basic weather report

New Zealand Flight Information Region

Aerodrome special routine meteorological report

Automatic aerodrome routine meteorological report

Aerodrome routine meteorological report

TAF

Aerodrome forecast

Area forecast

Significant meteorological information