With Economic Damages of $9B, Hurricanes Eta and Iota Topped Off Record Year: Aon

Hurricanes Eta and Iota in November topped off the 2020 Atlantic hurricane season when a record of 12 named storms made landfall in the United States. The two final hurricanes of the season had an economic cost of approximately $9 billion, according to Aon’s monthly Global Catastrophe Recap report.

Hurricane Eta made landfall and caused extensive damage in Nicaragua, before moving to Honduras and Guatemala, and subsequently making landfall in south central Cuba as a tropical storm. Total economic losses in Central America were estimated at nearly $7 billion, most of which were uninsured, said the report.

Eta later made two landfalls in Florida as a tropical storm, bringing heavy rainfall and flash flooding, storm surge, and tropical storm-force wind gusts across the state. The first occurred in the middle Florida Keys on Nov. 8, with maximum sustained winds of 65 mph (100 kph), and the second on Nov. 12, along the west-central Florida coast, with maximum sustained winds of 50 mph (85 kph). Total U.S. economic losses were tentatively estimated at $1.1 billion, with public and private insurers covering approximately half of the loss, the report added.

Hurricane Iota became the first Category 5 hurricane of the 2020 Atlantic Season on Nov. 16, making landfall in Nicaragua on the same day. The storm produced dangerous coastal and inland flooding as well as high wind across Central America, with extensive impacts experienced in Nicaragua and Honduras. Total economic losses were expected to reach $1.25 billion, most of which will be uninsured.

In Asia, Super Typhoon Goni became the strongest storm at landfall in recorded history. At its peak, Goni attained one-minute average sustained winds of 315 kph (195 mph), before making landfall near Bato town in Catanduanes Province of the Philippines on Nov. 1. At least 31 people were killed and nearly 400 others were injured. Approximately 250,000 homes and thousands of other structures were damaged or destroyed, and a vast area of agricultural land was also affected. Economic losses to agriculture and infrastructure alone were estimated at PHP20 billion ($415 million), amid an overall economic toll expected to approach $1 billion.

“While not historically one of the most active months for tropical cyclones, November 2020 set multiple records. Most notable was the landfall of Typhoon Goni in the Philippines, which unofficially came ashore as the strongest landfalling global storm on record,” said Michal Lörinc, catastrophe analyst for Aon’s Impact Forecasting team, in a statement.

“Hurricanes Eta and Iota became two of the fastest-intensifying storms in the Atlantic, and Iota was the latest-forming Category 5 storm on record for the basin. While 2020 storms have not set any new financial loss milestones, the scientific records serve as a reminder of the risks posed to both developed and emerging markets,” he continued.

Other notable natural hazard events and statistics from the report include:

Source: Aon’s Impact Forecasting