Home > RTOFS Global model forecast documentation
RTOFS (Global) is a global ocean forecast system based on the HYbrid Coordinate Ocean Model (HYCOM).
The model is run once a day, completing at about 1700Z. Each run starts with a 2 day hindcast and produces ocean surface forecasts every hour and full volume forecasts every 6 hours from the 0000Z nowcast out to 196 hours.
RTOFS (Global) model data is available after about 1700 UTC .
Nowcast/Forecast graphics are updated the next day.
RTOFS web home page: https://polar.ncep.noaa.gov/global/nc