Canadian TAF/METAR Guide

Table of Contents

INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Out With the SA, and in with the METAR
Out With the FT, and in with the TAF
Why?
Why Not?
About This Manual
An Important Note About AWOS

The METAR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Report Type
Ident
Date/Time Group
AUTO Flag
Correction Flag
Wind Group
Basic Direction and Speed
Direction Variability
Visibility Group
Prevailing Visibility
Runway Visual Range (RVR)
Present Weather
Intensity/Proximity
Descriptor
Phenomenon(a)
More Notes about Weather Phenomena and METAR codes
Examples of Basic Present Weather Codes
Some Examples of Combined Present Weather Codes
Sky Condition
Some Review
Sky Clear
Sky Fully Obscured by a Ground Based Layer
Notes
Temperature/Dewpoint Group
Altimeter Setting
Recent Weather
Wind Shear
Remarks
Layer Type and Opacity
Administrative Remarks
Aviation Remarks
Sea Level Pressure
METAR Worksheets

The TAF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

TAF Indicator
Amendment Indicator
Ident
Advisory Flag
Issue Time
Period of Coverage
Wind
Forecast Surface Wind
Variable Winds
Calm Winds
Wind Shear
Visibility
Weather
Intensity/Proximity
Descriptor
Phenomenon(a)
Notes about Weather Phenomena and TAF codes
Examples of TAF Weather Codes (same as METAR)
Examples of Combined Present Weather Codes
Sky Condition
Sky Clear
Sky Fully Obscured by a Ground Based Layer
Cloud Layers
TAF's and Ceilings
Temporary Conditions
Hazard Probability
Change Group
"BECMG"
"FM"
Remarks
A Final Word - Making Sense of It All
TAF Worksheets

Worksheet Solutions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

METAR Worksheet Solutions
TAF Worksheet Solutions