![]() Sometimes a METAR is automatically prepared and then checked or supplemented by a meterologist. Most weather stations provide a new observation every half hour. DistributionĪfter compilation, the METAR is distributed in an encrypted format. That seems very outdated in the year 2022, but it is not. A lot of information can be passed on with few characters. This is done in a standardized way to avoid misunderstandings. The information from one round (cycle) of all approximately 4,200 measuring stations together is still about 3 Mb. Yet encrypted METAR and TAFs do have their limitations. Sometimes it is difficult to quickly visualize all the information it contains. 50 codes are used for weather phenomena and the condition of the runways.A METAR or TAF can be set up with other units than you are used to and you have to convert. Times are in UTC (Coordinated Universal Time): the time in London without daylight saving time.You don't use most of them on a daily basis, which makes it difficult to remember them all. A METAR does not provide information about wind components.For countries far removed from this (North and South America, Asia, Australia), this provides quite a bit of calculations. You cannot see at a glance whether there is a head or tail wind. ![]() You also cannot see whether there is a crosswind: from which direction, at what speed. You can of course calculate this with a few rules of thumb or a sine / cosine, but that is not convenient. These shortcomings are overcome by METAR decoders such as. ![]() The interactive map shows the most recent data from all METAR stations in the world. Click on a field to view the METAR, TAF and NOTAMs. If there is no METAR station on that airport, we will show the closest METAR in combination with the runways of the chosen space. In addition to a decoded METAR and TAF, you will also see the crosswind components. Sign up for a free account to set and save your preferences. You can set a home base to center the map automatically and you can change all units. Certain functions are only available for logged in users, such as extensive historical METAR data.
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