MANAIR Manual of Standards and Procedures for Aviation Forecasts: amendment 1

Seventh Edition, Amendment 1

Originating Authority: Prediction Services Directorate

Effective: April 2015

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ISBN: 978-0-662-03913-6

Cat. No.: En56-238/4-2015E-PDF

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Foreword

The Manual of Standards and Procedures for Aviation Weather Forecasts (MANAIR) specifies procedures, practices and formats to be used in the preparation of aviation weather forecasts. It serves as a precise standard for the operational meteorologist who produces aviation weather forecasts. It also provides necessary information for those who deliver aviation weather services.

This manual is used within Environment Canada (EC) as a standard for operational meteorologists producing aviation weather forecasts, and for informational purposes for users who deliver aviation weather services. Revisions and amendments will be issued when warranted. All holders of the manual are responsible for keeping their copies current. When revisions and amendments have been entered, they are recorded on the page headed Record of Amendments.

Inquiries on the content of this manual should be directed to the Meteorological Service of Canada through appropriate channels.

Record of Revisions

Revisions applied in MANAIR 7th Edition, Amendment 1 listed by section with description of changes.

Section Revision description

2.4.1

2.4.2

2.5.3

2.6.5

2.6.14.1

2.7.1

2.7.2

2.7.3

2.8

Replaced the word “coverage” with the word “validity”.
2.9 Updated paragraph on TAF amendment response time and performance thresholds.
2.6.9. Table 2 Removal of “UP - Unknown precipitation” from the table.
3.4 Correction to the FBCN31 examples :“VALID 090600Z FOR USE 0200-0900Z”
4.9.1.2.4 Correction to the definition of coverage for ISOLD and OCNL.
4.9.1.3 Correction to the definition of coverage for LCL and PTCHY.
4.9.2 Correction to the definition of coverage for LCL and PTCHY.
5.8.3.3 Updated definition for “OBS” and “FCST”.
5.8.5.3 Updated information for tropical cyclone SIGMET issued with a lead time.
6.8.3.3 Updated definition for “OBS” and “FCST”.
Chapter 8 Replaced the word “coverage” with the word “validity” in the definition of “Part-period”.

Removal of the word “daily” from the definition of “Period of coverage”.

Addition of definitions for RNAV and RCAP.
Appendix A Addition of: CYRQ Trois-Rivières.

Deletion of: CYXD Edmonton City Centre.

Numerous corrections and updates to the content of the columns.
Appendix B Limited updates to the content of columns.
Appendix D.4 Changes to the rules for the use of letters in SIGMET.

Removal of Figure 1.
Appendix D.7 Deletion of: CJS3 Cluff Lake.

Numerous corrections and updates to the content of the columns.
Appendix E.4 Changes to the rules for the use of letters in AIRMET.

Removal of Figure 1.
Appendix E.7 Deletion of: CJS3 Cluff Lake.

Numerous corrections and updates to the content of the columns.
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