VayuMet's Cloud Cover layer maps cloud fraction across India by altitude band from NOAA GFS — low, medium, high and total cloud cover as a percentage, a convective cloud cover fraction, and cloud ceiling height in metres. A live Himawari-9 infrared satellite layer is available separately for real-time cloud-top imagery.
For real-time cloud-top imagery rather than a forecast, the main map's Live Observations group also carries continuously-refreshed Himawari-9 infrared and sandwich RGB satellite layers over South and Central Asia.
| Dataset | Operator | Resolution | Update Cycle |
|---|---|---|---|
| GFS (Global Forecast System) | NOAA / NCEP | 0.25° | 4× daily (00Z, 06Z, 12Z, 18Z) |
| Himawari-9 (live satellite) | JMA | Satellite native | Continuous (~10 min) |
Cloud cover and ceiling height maps support flight planning where low cloud or ceiling affects VFR minimums (see the Aviation Dashboard for full aviation weather), solar generation forecasting where cloud cover determines irradiance, and general situational awareness for developing convective weather.