Meteorological products and services for civil aviation in New Zealand can only be provided by organisations certificated to do so by the CAA. Under Civil Aviation Rule Part 174 - Meteorological Service Organisations, the Meteorological Service of New Zealand (MetService) and the Airways Corporation of New Zealand (Airways) are certificated to supply various categories of services. The majority of such services are currently provided by MetService.

There is no formal requirement from government for MetService to provide meteorological services to domestic civil aviation. The CAA is the International Civil Aviation Organisation (ICAO) Meteorological Authority in New Zealand, and, as such, gives exclusive license to MetService to carry out the operational requirements prescribed in ICAO Annex 3, Meteorological Service for International Air Navigation. This includes the provision of OPMET (TAFs, METARs, and SPECIs for Auckland, Wellington, and Christchurch aerodromes, and SIGMETs for the New Zealand and Auckland Oceanic FIRs).

This area of the CAA’s web site is intended to provide an up to date overview on access to, use of, and interpretation of aviation meteorological information by all sectors of the New Zealand aviation community.

Met Blog - a web log designed to give you brief updates on what's happening in the world of meteorology.

AvKiwi Safety Seminars - Wx Matters - includes apps and an online course.

How to Teach Met - Flight Instructor Seminar 2015 - by Greg Reeve, Aviation Meteoroloigst, MetService

Low Level Graphical Aviation Forecast (GRAFOR) and Aviation Area Winds (AAW) (PDF 4.8 MB) - launches 26 Jun 2018

Weather for Flight Planning

Weather Information

Weather Information Requirements for Foreign Operators

Volcanic Ash

NZ Practices and Procedures

Volcanic Ash Advisory System (VAAS)
The Volcanic Alert Level (VAL) System (PDF 670 KB)
Volcanic Eruption - Recommended Actions for Airports - poster (965 KB)

Reference Information

ICAO Flight Safety and Volcanic Risk (ICAO Doc 9974)
ICAO Manual on Volcanic Ash, Radioactive Material and Toxic Chemical Clouds (Doc 9691)
IFALPA video: Volcanic Ash, an Aviation Hazard of Explosive Proportions

Volcanic Ash Workshops - Reports

Fourth International Workshop on Volcanic Ash (VAWS/4 - 2007)
Fifth International Workshop on Volcanic Ash (VAWS/5 - 2010)
Sixth International Workshop on Volcanic Ash (VAWS/6 - 2013) (1.3 MB)
Seventh International Workshop on Volcanic Ash (VAWS/7 - 2015) (PDF 593 KB)


Form CA010 Volcanic Activity Report

Global Air Navigation Information Symposium 2017

Meteorology Session - Transition to a SWIM environment (PDF 1.3 MB)
Meteorology Session - The migration towards seamless service provision - the foreseen role of local, regional and global MET information providers (PDF 2.2 MB)
Meteorology Session - Space Weather Services for Aviation - An Emerging Capability (PDF 3.9 MB)
Meteorology Session - Advancing flight planning safety and efficiency through enhancements in the World Area Forecast System (WAFS) - (PDF 1.7 MB)
Meteorology Session - The Future of Global Aviation Meteorology - a quiet revolution gaining pace now (PDF 1.3 MB)
Advances in weather and climate science (PDF 3.9 MB)

MET Symposium 2017

New Zealand Aviation MET Symposium, CAA (PDF 2.3 MB)
SWIM and IWXXM Overview, CAA (PDF 424 KB)
Aviation Meteorology - An Airports Perspective, NZ Airports Association (PDF 1.6 MB)
Airways NZ view of future use of MET information, Airways NZ (PDF 600 KB)
Aviation Weather Services - Australian Perspectives, Australian Bureau of Meteorology (PDF 6.8 MB)
MetService presentation, MetService (PDF 8 MB)
New Zealand Aviation Meteorology Symposium Final Report, CAA (PDF 69 KB)

Emerging Hazards

High Level Ice Crystal Icing
Space Weather Information

Miscellaneous Information and Guides

Source of Aerodrome QNH (PDF 21 KB)
Study Materials for PPL, CPL and ATPL Met Exams (PDF 16 KB)
Flight Documentation Notations (Symbols)
Graphical SIGMET Monitor (GSM), User Guide (PDF 2.1 MB)
Graphical NZ SIGWX (GNZSIGWX), User Guide (PDF 438 KB)

SIGMET Quick Reference Guides


Useful Links

AIP New Zealand - web site
AIP New Zealand - how to order printed copies
Internet Flight Information Service (IFIS)

Weather-related Publications

To order, email, including your postal address.
VFR Met Minima Card VFR MET Minima (PDF 293 KB)

A5 card, hole-punched to fit in your Vol 4.

Revised Nov 2015
VFR Met GAP booklet VFR Met (PDF 2.5 MB)

This A5 booklet, in our Good Aviation Practice (GAP) series, covers why you should get Met, where you can get it, what you should get, and how to interpret it. It encourages you to use a set of tables to help you compare and contrast the weather for your flight, as a means of improving your weather-related decision making.

Revised Feb 2015
Weather Card Weather Card (PDF 151 KB)

A5 laminated card, hole-punched to fit in your AIP Vol 4.

Revised Aug 2017
Met Info poster Met Info (PDF)

A handy A2 poster to put up near your flight planning desk, with the ARFOR areas and abbreviations right where you need them.

Published Jan 2017
New Zealand Cloud Types poster New Zealand Cloud Types (PDF 1.2 MB)

A1 poster

Revised 2006
Aircraft Icing Handbook Aircraft Icing Handbook (PDF)
(Includes a helicopter section)

This is free on the internet, but if you require printed versions, there is a charge, as it is a large publication.
To order, call free 0800 GET RULES (0800 438 785), or order online,, or email