Cat's nose

{
  "id": "MLC-T-MET-004202",
  "term": "Cat's nose",
  "field": "Meteorology and atmospheric science",
  "definition": "A small, isolated patch of ruffled water on an otherwise calm sea or lake surface, indicating a localized downdraft or gust of wind. This phenomenon is a visual sign of small-scale atmospheric instability or the leading edge of an approaching breeze. Sailors and observers use it as a short-term, informal predictor of changing wind conditions.",
  "url": "https://mlchart.com/terminology/meteorology/cat-s-nose/"
}