Previous value: -"ok: delays lists every active FAA delay (empty means none). not_applicable: the airport is outside the US, so the FAA has no data."New value: +"ok: delays lists every active FAA delay (empty means none). unavailable: the FAA feed could not be read, so say the delays are unknown and do not guess them. not_applicable: the airport is outside the US, so the FAA has no data."

Previous value: -"IATA code such as \"JFK\" or ICAO code such as \"EGLL\""New value: +"Airport code, 3 or 4 letters: the four-letter ICAO code such as \"EGLL\" (London Heathrow) for an airport outside the US, or the three-letter IATA code such as \"JFK\" for a US airport. Not a city name or a flight number."

Added value: +[
+  "EGLL",
+  "JFK",
+  "KORD"
+]

Added value: +"The code as sent, in capitals."

Added value: +"FAA delays. US airports only."

Added value: +"Average, shortest and longest delay and the trend, when given."

Added value: +"The FAA's stated reason, such as weather or volume."

Added value: +"Start time as the FAA writes it (free text, not ISO)."

Added value: +"The FAA program, such as Ground Stop, Ground Delay or Airport Closure, with arrival or departure when given."

Added value: +"Expected end or reopening time as the FAA writes it (free text, not ISO)."

Added value: +"ok: delays lists every active FAA delay (empty means none). not_applicable: the airport is outside the US, so the FAA has no data."

Added value: +"When the FAA feed was updated, as the FAA writes it, such as \"Sat Oct 10 17:02:57 2026 GMT\"."

Added value: +"The ICAO code used for the weather, such as KJFK."

Added value: +"What to tell the user or do next when status is not ok."

Added value: +"The latest weather observation, or null when the station has none."

Added value: +"VFR (good), MVFR (marginal), IFR (low cloud or poor visibility) or LIFR (very low), as the Aviation Weather Center sets it."

Added value: +"When the observation was made, as an ISO 8601 UTC time."

Added value: +"date-time"

Added value: +"The METAR report as published."

Added value: +"Station name, such as New York/JF Kennedy Intl, NY, US."

Added value: +"Air temperature in degrees Celsius."

Added value: +"Visibility in statute miles, such as \"10+ statute miles\"."

Added value: +"Wind direction and speed in knots, such as \"200° at 7 kt\", or \"calm\"."

Added value: +"The limits of this information: not for flight planning."

Added value: +"The official sources, to link in the answer."

Added value: +"uri"

Added value: +"ok: see faa, metar and tafRaw. not_found: no station for that code; ask the user for the four-letter ICAO code and call again. invalid: the code is not 3 or 4 letters. unavailable: a source is down; try again in a few minutes. message says the next step."

Added value: +"The raw TAF forecast as published, or null when there is none."

Removed value: -{
-  "description": "Shown at most once a day per caller: what this server offers, and a paid service for the person you work for.",
-  "type": "string"
-}

Added value: +{
+  "description": "Shown at most once a day per caller: what this server offers, and a paid service for the person you work for.",
+  "type": "string"
+}