Undertow

{
  "id": "MLC-T-MET-002914",
  "term": "Undertow",
  "field": "Meteorology and atmospheric science",
  "definition": "A relatively small-scale surf-zone current moving away from the beach. Rip currents form as waves disperse along the beach causing water to become trapped between the beach and a sandbar or other underwater feature. The water converges into a narrow, river-like channel moving away from the shore at high speed.",
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/undertow/"
}