The extended forecasts are produced twice a week (Monday and Thursday). The forecast resolution is ~16 ~36 km (1-15 days) and ~36 km (16 - 46 days). The extended forecasts start from Day 14 of the ENS.
Forecasts are produced for the coming 46 days with focus on week to week changes in the weather.
Forecasts are generally presented for the first 32 days in terms of anomalies relative to the climate
The long forecast ranges are best used if presented as multi-days means (maximize the possibility to capture predictable signals)
Other products are of value: potential tropical cyclone activity, MJO indices, potential Sudden Stratospheric Warming activity.