Giant inland sea created by the disastrous Mozambique cyclone

"The situation is terrible."
 By 
Mark Kaufman
 on 
Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

Cyclone Idai left death, destruction, and a sprawling inland sea in its wake.

The powerful tropical cyclone -- which struck Mozambique last Thursday as the equivalent of a Category 2 or 3 hurricane with winds of around 100 mph -- has left at least 150 dead and 600,000 in need of help in the flooded nation said the EU, though the Associated Press reports over 300 fatalities as of March 21 when accounting for deaths in neighboring Zimbabwe.

The cyclone's widespread flooding -- in part overshadowed by simultaneous and historic flooding in the Midwest -- has left behind an inundated area some 200 square miles in size (518 square kilometers), with the inland sea reaching up to 15 miles wide, according to satellite images from the European Space Agency (ESA).

The destruction is particularly severe around Mozambique's fourth largest city, Beira.

"The situation is terrible. The scale of devastation is enormous. It seems that 90 per cent of the area is completely destroyed," said the Red Cross's Jamie LeSueur, who is working in the region.

Though there's little evidence showing that the planet is experiencing more cyclones and hurricanes, there is mounting evidence that these storms are growing stronger compared to storms in the 20th century.

What's more, cyclones, like any big storm today, can now carry more water: The world has warmed by 1.8 degrees Fahrenheit, or 1 Celsius, over the last century, and for every 1 degree C of warming the atmosphere holds seven percent more water.

Since the 1960s, only three tropical storms of category 3 or stronger have hit Mozambique, according to Weather.com.

When the total number of fatalities are confirmed and the great inland sea dissipates, Idai's rampage may end up being the worst storm on record in the Southern Hemisphere, the EU noted.

UPDATE: April 25, 2019, 12:24 p.m. EDT: This article has been corrected to say that there's mounting evidence today's cyclones are growing stronger than cyclones in the 20th century. Previously, the article said "21st century."

Mashable Image
Mark Kaufman
Science Editor

Mark was the science editor at Mashable. After working as a ranger with the National Park Service, he started a reporting career after seeing the extraordinary value in educating people about the happenings on Earth, and beyond.

He's descended 2,500 feet into the ocean depths in search of the sixgill shark, ventured into the halls of top R&D laboratories, and interviewed some of the most fascinating scientists in the world.

Mashable Potato

Recommended For You
How to watch Nigeria vs. Mozambique online for free
Nigerian midfielder Raphael Onyedika Nwadike celebrates

The One Piece TCG The Azure Sea’s Seven Booster Box is $25 off at Amazon
The One Piece TCG: The Azure Sea's Seven Booster Box on a red and orange background

Grok blocks X users from creating images of real people in ‘revealing clothing’
Grok, xAI's chatbot.

X reportedly still allows Grok-created, sexualized images despite new ban
Grok logo on smartphone

How 'The Pitt's cinematographer created the show's unique immersive style
Johanna Coelho and Noah Wyle from 'The Pitt'

More in Science
How to watch Chelsea vs. Port Vale online for free
Alejandro Garnacho of Chelsea reacts

How to watch 'Wuthering Heights' at home: Margot Robbie and Jacob Elordi's controversial romance now streaming
Margot Robbie and Jacob Elordi embracing in still from "Wuthering Heights"

How to watch New York Islanders vs. Philadelphia Flyers online for free
Matthew Schaefer of the New York Islanders warms up

How to watch Mexico vs. Belgium online for free
Israel Reyes of Mexico reacts

How to watch Brazil vs. Croatia online for free
Vinicius Junior #10 of Brazil leaves

Trending on Mashable
NYT Connections hints today: Clues, answers for April 3, 2026
Connections game on a smartphone

Wordle today: Answer, hints for April 3, 2026
Wordle game on a smartphone

Google launches Gemma 4, a new open-source model: How to try it
Google Gemma

What's new to streaming this week? (April 3, 2026)
A composite of images from film and TV streaming this week.

NYT Strands hints, answers for April 3, 2026
A game being played on a smartphone.
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!