morning glory

{
  "id": "MLC-T-MET-001760",
  "term": "morning glory",
  "field": "Meteorology and atmospheric science",
  "definition": "An elongated cloud band, visually similar to a roll cloud, usually appearing in the morning hours, when the atmosphere is relatively stable. Morning glories result from perturbations related to gravitational waves in a stable boundary layer. They are similar to ripples on a water surface; several parallel morning glories often can be seen propagating in the same direction.",
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/morning-glory/"
}