Airport weather

What it shows

Measured weather at airports, from the METAR reports their instruments send. Each airport is coloured by the flight category worked out from ceiling and visibility under the FAA rule. It covers views narrower than about 26 degrees; at continental scale the panel asks you to zoom in.

Where the data comes from

NOAA Aviation Weather Center (aviationweather.gov) METAR data; the server caches it for 4 minutes, and stations usually report once or twice an hour.

Reading the map

VFR (flying by eye), MVFR (marginal), IFR (instruments needed) and LIFR (low instrument conditions, the category that grounds flights), each in its own colour.

Units Flight category; temperature, wind, visibility and ceiling as reported.

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One page for each

See the list: every item this layer shows has its own page, with facts, source and a map

Other layers in live

• Aircraft
• Earthquakes
• Cheap flights
• Active fires
• Lightning
• Natural events
• The station