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With the cycle 41r1 we are extending the EFI for certain parameters in the far medium range to highlight anomalous weather from day 10 to day 15 (see figure below). The EFI forecast for 2-metre mean temperature highlights the warm anomaly from the Pole to Siberia, warm anomaly over France and England and the cold anomaly over Africa.
3.4 Monthly forecasts
The plots below show the weekly anomaly of z500 over Arctic. In the verification panel (left), the strong southerly flow is clear over the northern Atlantic. However this is not so clear in forecast range 5-11 days.
The plot below shows the verification of weekly mean of the 2-metre temperature. Although it is difficult to see the Arctic in this projection, a warm anomaly is present for all lead times, However, it is hard to judge whether the anomaly is due to less sea-ice or the advection of warm air. The z500 anomalies suggests the former.
3.5 Comparison with other centres
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