The Airnyx Metar Decoder

THE AIRNYX METAR DECODER

Decode METARs anywhere on the web. Built by a working aircraft dispatcher for pilots and dispatchers who read METARs every day.

WHAT IT DOES

- Paste any METAR into the popup and get an instant plain-English decode — wind direction and speed, visibility, weather phenomena, cloud layers and ceilings, temperature, dewpoint, altimeter setting, and remarks.

- On aviation weather sites (aviationweather.gov, 1800wxbrief.com), METARs are automatically highlighted as you browse. Hover any highlighted METAR for a full decode in a tooltip — no clicks, no copying, no switching tabs.

- On any other website, click the "Scan page" button and the extension finds every METAR on the page and lets you decode each with one click. Internal dispatch systems, flight planning tools, briefing platforms — anywhere a METAR appears.

WHO IT'S FOR

- Aircraft dispatchers reviewing observed weather for active flights
- Student dispatchers studying for the FAA ADX written exam
- Student pilots learning to read METARs for PPL, IR, CPL, and ATP exams
- CFIs explaining METAR format to students
- Private pilots checking weather before a flight

HOW IT DECODES

The extension uses the standard METAR token definitions from FAA Advisory Circular AC 00-45H Chapter 3. It handles:

- Wind: direction, speed, gusts, variable directions, variable range, calm
- Visibility: statute miles (including compound like "1 1/2SM"), meters (ICAO format), greater-than/less-than prefixes
- Weather: all st