Weather manuals and documentation

Manuals
Circulars
Bulletins

In this section, you will find Environment and Climate Change Canada's (ECCC) documentation pertaining to weather forecasting, observing standards, circulars and bulletins. This documentation is managed by ECCC for use by ECCC as well as for other Government of Canada departments and partners.

Note 

Clicking on the document cover image will bring you directly to the PDF version of the document. To view the document landing page and HTML versions, where available, click on the hyperlinked document title.

Manuals

MANAB cover

MANAB
Manual of Word Abbreviations
3rd Edition

MANICE cover

MANICE
Manual of Standards and Procedures for Observing and Reporting Ice Conditions
Revised Edition

MANAIR cover

MANAIR
Manual of Standards and Procedures for Aviation Weather Forecasts
7th Edition, Amendment 1

MANOBS cover

MANOBS
Manual of Surface Weather Observation Standards
8th Edition
Effective: February 2019

MANCLIM cover

MANCLIM
Manual of Climatological Observations
4th Edition

MANMAR cover

MANMAR
Manual of Marine Weather Observations
8th Edition

Circulars

MANAIR Circular (AIR)

MANAIR circulars supplement the current edition and amendment of the Manual of Standards and Procedures for Aviation Weather Forecasts (MANAIR) and are incorporated in subsequent editions or amendments.

Cover image

AIR 2-2019 | HTML | PDF: 588 KB
Instrument Flight Rules (IFR) approach and alternate limits for Canadian aerodromes with an Aerodrome Forecast (TAF) or an advisory program
Effective: February 28, 2019

Observer Circular (OBS)

Effective February 2019, coinciding with the publication of MANOBS 8th Edition, Observer Circulars are no longer issued by Environment and Climate Change Canada.

Bulletins

Effective February 2019, coinciding with the publication of MANOBS 8th Edition, Aviation Weather Observing Bulletins (AVOBS) are no longer issued by Environment and Climate Change Canada.

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