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. 2023 Feb 9;14:727. doi: 10.1038/s41467-023-36289-3

Fig. 3. Meteorological conditions leading up to heatwave onset.

Fig. 3

Meteorological conditions over the North Pacific for a 00UTC 21 June, b 00UTC 23 June, c 12UTC 24 June, and d 12UTC 26 June. Data from ERA5 reanalysis showing: mean sea-level pressure (MSLP; contoured, hPa), 700 hPa relative humidity (RH; shaded, light blue >70%, dark blue >90%), and 250 hPa wind vectors (ms−1, colored by wind speed). Coastlines and country borders are shown in green to distinguish them from the MSLP contours.