Meteorology

Decoding METAR & TAF Weather Reports for Aviation Flight Planning

How pilots and dispatchers read raw METAR routine weather reports, TAF forecasts, RVR runway visual range, and altimeter settings.

8 min read Published

1. What is a METAR Report?

METAR (Meteorological Aerodrome Report) is the international standard format for reporting current weather observations at airports. Reports are generated automatically by ASOS/AWOS stations or human observers every 30 to 60 minutes.

2. Dissecting a Raw METAR Example

KJFK 101451Z 24012KT 10SM FEW250 18/11 A3002

  • KJFK: Airport ICAO identifier (New York JFK).
  • 101451Z: Day of month (10th) at 14:51 UTC (Zulu time).
  • 24012KT: Wind direction 240 degrees at 12 knots.
  • 10SM: Visibility 10 Statute Miles.
  • FEW250: Few clouds at 25,000 feet.
  • 18/11: Temperature 18°C / Dewpoint 11°C.
  • A3002: Altimeter setting 30.02 inches of mercury (inHg).

See the latest METAR weather reports on our New Delhi (DEL) and Singapore Changi (SIN) airport pages.

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