November 30 marked the official end of a historic 2017 Atlantic Hurricane season which produced 17 named storms, including four hurricanes which made landfall (Harvey, Irma, Maria and Nate) affecting roughly 25.8 million people. For the first time in 12 years, a major hurricane made landfall affecting the continental US, and the first time ever two Category 4 storms hit the continental U.S. in the same season. Hurricane Harvey
set a new record for the most rainfall from a U.S. tropical cyclone
, with more than 50 inches of rain in some areas. Two weeks later, Hurricane Irma became the strongest Atlantic Ocean hurricane on record
and the public response resulted in one of the largest sheltering missions in U.S. history. Hurricane Maria
was the third major hurricane to his the US this season, and was the first Category 4 hurricane
to make landfall on the main island of Puerto Rico in 85 years.