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The plots below show the observation minus first guess (left) and observation minus analysis (right) for all observations (top) and used (bottom) for surface pressure. The plot is for 15 September 00UTC. It shows the the analysis has a weaker cyclone (black contours) than the first guess.
3.2 HRES
The plot below shows the central pressure in HRES (coloured lines) and BestTrack (black). The plot starts at 14 September 00UTC.
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