During the afternoon UTC hours of May 7, 2017, Tropical Cyclone "Donna" became the strongest May cyclone ever to hit the southern hemisphere. Donna peaked at 118.7 knots (220 km/h / 136 mph) at 19:32 UTC on May 7, before it started weakening. Vanuatu Meteorology and Geohazards Department reported estimated gusts close to the center reached as high as 300 km/h (186 mph).