The United Nations Office at Geneva
Multimedia Newsroom
Violent hurricanes in Gulf Coast offer a tate of things to come as WMO warns of “more hurricanes of categories 4 and 5” this season
As the Gulf Coast of the United States left assessing the massive damage left by hurricane Laura , scientist predict that the strongest storm tied to hit the state of Louisiana since 1856 was just the beginning of more hurricanes to be expected during this season.
“It was a big storm, it generated more accumulated cyclone energy -- which is how we measure these things -- than all the other named storms during August so far,” said Clare Nullis, spokesperson for the World Meteorological Organization (WMO) in reference to hurricane Laura. Speaking to journalists in Geneva, Ms. Nullis added that “it’s the seventh named storm to landfall in the United States this season. The others were relatively minor. And it’s obviously by far the most intense and dangerous hurricane so far this season”.
Quoting the Intergovernmental Panel on Climate Change, Ms. Nullis said that “the global proportion of tropical cyclones that reach very intense category 4 and 5 levels will likely increase due to anthropogenic [reasons], so that’s human caused, over the next century”. Hurricane Laura intensified within 24 hours from a category 1 to a category 4 hurricane, leaving a path of destruction in its wake.
The accurate forecasts seem to have kept the death toll to a minimum, with some 20 people killed by the hurricane, mainly in the Dominican Republic and Haiti before Laura developed into a hurricane and hit Louisiana.
Precautions will remain crucial as “we still have a long way to go with climatology saying that we have about 70 percent of strong activity in the season still left,” according to the WMO spokesperson. The hurricane season also started earlier this year than is usual.
Global warming provides one reason for expecting more destructive ad powerful storms more frequently, according to Ms. Nullis. It is “basically the laws of physics,” she said. “Storms feed on warm water, higher water temperatures mean higher sea levels which in turn increases the risk of flooding during high tights and so the circle goes on. Warm air holds more atmospheric water which enables tropical storms to strengthen and unleash more heavy rainfall,” she explained.
- Exterior wide shot, Palais des Nations flag alley, nations’ flags flying
- SOUNDBITE (English) — Clare Nullis, Spokesperson for the World Meteorological Organisation (WMO): “It was a big storm, it generated more accumulated cyclone energy, which is how we measure these things, than any other named storms during August so far. It’s the seventh named storm to landfall in the United States this season. The others were relatively minor. And it’s obviously by far the most intense and dangerous hurricane so far this season”.
- Medium shot, journalists sitting in Press Room III, Palais des Nations.
- SOUNDBITE (English) — Clare Nullis, Spokesperson for the World Meteorological Organisation (WMO): “The global proportion of tropical cyclones that reach very intense category 4 and 5 levels will likely increase due to anthropogenic, so that’s human caused, over the next century”.
- Close up, journalist, Press Room III, Palais des Nations.
- SOUNDBITE (English) — Clare Nullis, Spokesperson for the World Meteorological Organisation (WMO): “We still have a long way to go with climatology saying that we have about 70 % of strong activity in the season still left.”
- Wide shot, journalists in Press Room III, Palais des Nations.
- SOUNDBITE (English) — Clare Nullis, Spokesperson for the World Meteorological Organisation (WMO): “We do expect to see more powerful storms in the future as a result of global warming. That’s basically the laws of physics: storms feed on warm water, higher water temperatures mean higher sea levels which in turn increases the risk of flooding during high tights and so the circle goes on. Warm air holds more atmospheric water which enables tropical storms to strengthen and unleash more heavy rainfall”.
- Close up, journalist in Press Room, Palais des Nations.
- Close up, spokesperson in Press Room, Palais des Nations
- Close up, journalist in Press Room, Palais des Nations.
- Close up, journalist in Press Room, Palais des Nations.
- Close up, journalist in Press Room, Palais des Nations.
- Close up, hands typing on laptop
Similar Stories
1
1
1
Edited News | UNHCR , WHO
Lebanon: disease risks on the rise as displacement surges
With displacement in Lebanon past the one million mark, UN humanitarians warned on Tuesday about the spread of infectious diseases in shelters and surging mental health needs.
1
1
1
Edited News | UNIFIL
UN peacekeepers are supporting civilians who’ve chosen to stay in the south amid deadly dangers from Israel-Hezbollah clashes, UNIFIL spokesperson Kandace Ardiel tells us.
1
1
1
Edited News | UNHCR , WFP
Middle East war fallout: Hundreds of thousands flee Lebanon to Syria; vital food aid blocked – UN agencies
The trauma of mass displacement and humanitarian supply chain disruptions throughout the world are among the devastating impacts of the war raging in the Middle East, UN humanitarians warned on Tuesday.
1
1
1
Edited News | UNRWA
Bitterness, sadness and pride for UNRWA staff, says departing chief
Asking the softly spoken, veteran humanitarian worker Philippe Lazzarini how he feels as he comes to the end of his second term as the head of the UN agency for Palestinians, UNRWA, is perhaps an unfair question.
1
1
1
Edited News | IFRC , UN WOMEN , UNHCR , UNICEF , WHO
Middle East war causes civilian terror and disrupts aid, but some relief efforts resume.
1
1
1
Edited News | OHCHR
UN Human Rights Chief Volker Türk addressed the Human Rights Council, delivering a video statement on the strike that hit a girls school in Minab, Iran recently, calling for accountability and protection of children.
1
1
1
Edited News | OHCHR , UNOG
A new UN Human Rights report published on Tuesday details the human rights impacts of the expanding reach of gangs in Haiti. According to data verified by the Office, at least 5,519 people were killed in Haiti, and 2,608 were injured between 1 March 2025 and 15 January 2026.
1
1
1
Edited News | OHCHR , UNOG
UN Human Rights spokesperson Marta Hurtado on Tuesday described the deadly impact of drone strikes in Sudan.
1
1
1
Edited News | WHO , OHCHR
Sudan: Hospital strike highlights surge in drone attacks on civilians
The death toll from a horrific attack on a hospital in Sudan’s Darfur has risen further, amid a “sharp increase” in drone attacks against civilians this year, UN agencies said on Tuesday.
1
1
1
Edited News | UNCTAD
Middle East conflict impacts global trade, raising oil and commodity prices due to disruptions.
3
1
3
Press Conferences , Edited News | WMO
WMO State of the Global Climate 2025 report - UNDER EMBARGO 0400 GMT (0500 CET) Monday, 23 March 2026
UN weather agency warns of record ‘climate imbalance’ as planetary warming accelerates
All-time high greenhouse gas concentrations in our planet’s atmosphere continue to drive heat records on land and sea, with long-lasting consequences for humanity, the World Meteorological Organization (WMO) has warned.
1
1
1
Edited News | OHCHR , UNOG
A UN Human Rights Office report released today on Israel’s settlement expansion in the occupied West Bank.