Get a weather forecast for any location up to 35 days ahead: 2 m temperature, precipitation and 10 m wind at any GPS point, decoded from GRIB. Deterministic GFS at 0.25 deg to 16 days (384 h); GEFS ensemble mean at 0.5 deg beyond, to 840 h (35 days) — the response names which source served it. A horizon_h beyond the currently available window (it shifts with ingestion cycles) is served at the latest available step, flagged lead.clamped. Pass city=<name> (alias location=, optional country= ISO 3166 alpha-2 filter) instead of lat/lon: resolved against the embedded GeoNames cities500 gazetteer (exact name match, case- and accent-insensitive, most populous match wins — no fuzzy matching), echoed back as data.location. Target a calendar day with date=YYYY-MM-DD (served at 12:00 UTC that day) instead of horizon_h or valid_time. Opt into extra variables with variables= (comma-separated): convective (surface CAPE/CIN plus a qualitative convective_risk — an instability proxy for thunderstorm/hail risk, NOT a calibrated hail probability), humidity (2 m relative humidity), clouds (total cloud cover), snow (snow depth on the ground and whether precipitation is falling as snow); these families come from the deterministic GFS only (<= 384 h) and the default temperature+precipitation+wind response is unchanged when variables is omitted. No account, no key, pay per call.

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