Decoding the Weather: A Pilot’s Guide to Reading METAR and TAF Reports
Understanding aviation weather codes might seem like learning a foreign language—because it is. Here’s how to crack the code.
A string of letters and numbers appears on the screen: EGLL 281520Z 27012KT 9999 FEW040 12/07 Q1023. To the uninitiated, it looks like someone fell asleep on a keyboard. To a pilot, it’s a snapshot of the sky - wind direction, visibility, cloud layers, temperature, and pressure - all compressed into a single line.
This is METAR, aviation’s universal language for reporting current weather conditions. Its companion, TAF, does the same for forecasts. Together, they form the foundation of flight planning worldwide, used by everyone from student pilots to airline captains.
Learning to read them isn’t difficult once you understand the system. It’s methodical, logical, and surprisingly elegant once the pattern clicks. Let’s decode it together.
