Light air

{
  "id": "MLC-T-MET-006942",
  "term": "Light air",
  "field": "Meteorology and atmospheric science",
  "definition": "A very gentle wind of Beaufort force 1, blowing at 1 to 3 knots, which is 1 to 5 km/h or 1 to 3 mph. Smoke drifts and shows the wind direction, but wind vanes do not respond and leaves stay still, and the sea shows only small ripples without crests. It is the second-lowest category on the Beaufort scale, above calm.",
  "url": "https://mlchart.com/terminology/meteorology/light-air/"
}