In the busy 2017 Atlantic hurricane season, Puerto Rico avoided a direct hit by the Category 5 Hurricane Irma on September 6, 2017, as it passed about north of Puerto Rico, but high winds caused a loss of electrical power to some one million residents. Almost 50% of hospitals were operating with power provided by generators. The Category 4 Hurricane Jose, as expected, veered away from Puerto Rico. A short time later, the devastating Hurricane Maria made landfall on Puerto Rico on Wednesday, September 20, near the Yabucoa municipality at 10:15 UTC (6:15 am local time) as a high-end Category 4 hurricane with sustained winds of 155 mph (250 km/h), powerful rains and widespread flooding causing tremendous destruction, including the electrical grid, which would remain out for 4–6 months in many portions of the island.