Metar Pdf

Weather is a huge part of successful flight planning, I hope this tutorial has helped you to better understand a few of the published weather reports available to aviators. The first number is the current temp and the second number is the dew point. In this section, intensity identifiers also play a big role. The identifiers for clouds are as follows.

To the non-aviator this is just a jumble of letters and numbers, but to us, it is an invaluable tool. Since the beginning of aviation starting right back with Orville and Wilbur weather has been a very important factor in flight planning. These numbers are always reported in degrees Celsius. They are all the same thing.

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Cumulus and Stratocumulus. So, you will never see the month. Weather Condition Next you will see the description of the weather. Coordinated Universal Time. Weather information is available from thousands of different sources, many of them easily accessible from the internet.

For the village in Iran, see Metar, welding safety manual pdf Iran. Duration of sunshine in minutes. Visibility After the winds comes the visibility. Stratocumulus not Cumulus.

All right, enough of that. Federal Aviation Administration. Temperature and dew point The next part contains the temp and dew point.

A Complete Guide to Understanding METARs Part 1

Interpreting METARs and TAFs

The next four numbers indicate the time. They assume you know what month you are in. It's been a long one but you have finally arrived at the end.

The rotating beacon will come on during the day. In the United States, the code is given authority with some U. The easy part is straight forward.

Membership LinksInterpreting METARs and TAFs

In this case, the report was issued at Z time, and is valid until Z the next day. Most of these reports however, are published in coded format, and for that reason, we have this tutorial.

The final section of the easy part is the altimeter setting. More than one layer may be forecasted or reported. To denote moderate intensity no entry or symbol is used.

Decreasing steadily or unsteadily. We use this field to detect spam bots.


One must know if thunderstorms are too intense to make a flight, how much fuel to bring along, and many other variables. With light winds and a low temperature spread you may see fog. Introduction to Remote-sensing-Environmental Monitoring. You will never see the winds reported in miles per hour.

Next you will see the description of the weather. In this tutorial we will cover the many aspects of disseminating the information contained in coded weather reports. Get used to thinking in knots. If you fill this in, you will be marked as a spammer. FedEx forecast uses X for sky obscured, or -X for partially obscured.


As the sun rises the temperature changes, a clear day can turn into a nightmare. The direction of the wind is variable from to degrees. You've Made it It's been a long one but you have finally arrived at the end.

World Meteorological Organization. Aeronautical Information Manual. Altimeter setting The final section of the easy part is the altimeter setting. You need to seriously pay attention to these numbers when they are within two degrees of each other.

Department of Transportation. The first two numbers are the day. Remarks section will also include began and end times of the weather events. It deserves its own section. Primary Code Description Requirement Figure.

Interpreting METARs and TAFs

You will also never see the visibility reported more than ten statute miles. Stratus or Fractostratus fair. Cirrus often with Cumulonimbus.

You would have a hell of a head wind flying west in this example. Four categories are used in the U. This group will only be given in the U. Note that there may be minor differences between countries using the international codes as there are between those using the North American conventions. International Civil Aviation Organization.