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Test products

Please note that these test products are not operationally supported, although ECMWF makes best efforts to ensure they are routinely available. These products should not be relied on for operational use.

Forecast trajectories from day 0 to day 8 in the NAO-BLO space.  Analysis for the previous 8 days (black line), ensemble mean trajectories (red line). Title shows initial date and time of ENS forecast;  coloured markers show the ENS members at 24-hour intervals (see legend). EOF1: positive (right) and negative (left) phase of NAO; EOF2: blocking (top), "anti-blocking" (bottom)