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The sequence of plots below show analyses of z500 and t850 from 8 to 15 September. The highest temperatures during the first phase were reached on 5-7 September in Portugal and Spain. In the second phase the warmest temperatures on the British Isles were on 13-14 September.
The plot below shows a Howmuller diagram of z500 averaged between 35N and 55N.
3. Predictability
3.1 Data assimilation
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The plots below show 3-day EFI and SOT for 2-metre temperature during Phase 1 (5-7 September). The final plot shows the evolution of forecasts for 2-metre temperature for 5W-0W, 38N-42N for the same period.
The plots below show 3-day EFI and SOT for 2-metre temperature during Phase 2 (13-16 September).
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