Iota is expected to threaten and make landfall as a major hurricane on Sunday night or Monday morning. Forecasts indicate northern Nicaragua and/or southern Honduras could bear the brunt of Iota.
The death toll in Honduras from Tropical Storm Eta has more than doubled in 24 hours, with authorities Monday reporting 57 people had died as rescuers search for bodies.
The United States and Guatemala have sent helicopters to Honduras to help with a rescue mission that involves 50,000 emergency services workers, authorities said.
About 150 people have either died or remain unaccounted for in Guatemala due to mudslides caused by powerful storm Eta, which buried an entire village, President Alejandro Giammattei said Friday.