GPM satellite rainfall data are shown overlaid on a visible and infrared image captured by the GOES-EAST satellite. GPM detected rain falling at a rate of over 94 mm (3.7 inches) per hour. Credits: NASA/JAXA, Hal Pierce
- "A storm of Otto's expected strength has never made landfall so far south in the Caribbean, and there is no record of any hurricane striking Costa Rica," the Washington Post quoted weather expert Bob Henson as saying.
- The paper says that very few hurricanes have formed so late in the season - which ends on 30 November - and that across the Atlantic since 1851 only 35 storms have reached tropical storm intensity on or after 15 November.
At least four people have died in Panama in severe weather caused by the approach of hurricane Otto, officials say.
Two victims were killed in a mudslide, a girl drowned in a river and a boy died when a tree fell on the car taking him to school.
The Panamanian education minister has suspended classes until Thursday.
The US National Hurricane Center says Otto is now hurricane strength and approaching Costa Rica and Nicaragua.
Panamanian officials said about 50 homes had been destroyed by mudslides.
Also in Panama, one Colombian man is missing after having been dragged away by a river swollen by heavy rainfall.
The governments of Nicaragua and Costa Rica have issued a hurricane watch from Costa Rica's southern border to the city of Bluefields in Nicaragua.
The National Hurricane Center (NHC) forecasts that Otto will make landfall in Costa Rica or Nicaragua on Thursday.
Meteorologists have warned of life-threatening flash floods and mudslides in this area.
There is also a likelihood of dangerous surf and rip current conditions over the next several days along the coasts of Panama, Costa Rica and Nicaragua, the NHC says.
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