With the publication of the December 2020 C3S seasonal forecasts (released on the 13th December at 12UTC) a couple of new additions have been made to the catalogue of graphical products shown at https://climate.copernicus.eu/charts/c3s_seasonal/:

• Time series of seasonal forecasts and their corresponding hindcast for the zonally averaged u-component of wind at 10hPa
  

• Evolution of probabilities for quartile-bounded categories (Percentiles 25 and 75) of the area-averaged monthly-mean sea-surface temperature anomaly computed over specified regions of the Tropical Pacific (the NINO 1+2, 3, 3.4 and 4 areas)