Fig. 3: Atmospheric circulation evolution in near-surface layers.

ERA5 mean sea level pressure (hPa, shaded) and 10 m wind (m s−1, arrows) at 15 UTC on 2 (a), 4 (b), 6 (c) and 8 (d) February, 2020.

ERA5 mean sea level pressure (hPa, shaded) and 10 m wind (m s−1, arrows) at 15 UTC on 2 (a), 4 (b), 6 (c) and 8 (d) February, 2020.