Iota has strengthened into a “dangerous” category 4 hurricane as it heads towards Central America.
Forecasters expect it to make landfall in northeastern Nicaragua and eastern Honduras on Monday night.
It comes just days after the countries were ransacked by category 4 Hurricane Eta which killed at least 200 people and left dozens more missing.
The US National Hurricane Center (NHC) warned of “potentially catastrophic winds, life-threatening storm surge, and extreme rainfall impacts to central America”.
Communities in low-lying areas have been evacuated, with strong winds and rain already being felt on the Nicaraguan coast.
The NHC said Iota had maximum sustained winds of 140mph (225kph) and was centred about 45 miles (70km) east of Isla De Providencia, Colombia.
In Honduras, compulsory evacuations began before the weekend and by Sunday night 63,500 people were reported to be in 379 shelters just in the northern region, while the whole country remains on high alert.
Nicaraguan officials said that by late Sunday afternoon about 1,500 people, nearly half of them children, had been evacuated in the country’s northeast, including everyone in Cayo Miskito. Authorities said 83,000 people in that region are in danger.
Local media reports showed people being evacuated in wooden boats, carrying young children as well as dogs and chickens.
Residents fleeing their homes said they feared their properties would not stand up to Iota so soon after already taking a battering from Eta.
Eta’s torrential rains left the soil saturated with water and more prone to new landslides and floods.