Visual Highlights from World Meteorological Day 2025

On 24 March 2025, the World Meteorological Organization celebrated World Meteorological Day and its 75th anniversary under the theme "Closing the Early Warning Gap Together". In a year marked by rising climate urgency, this milestone event brought together global leaders, experts, and practitioners to reaffirm our collective responsibility in building resilient societies through innovation, collaboration, and timely action.

To capture the spirit of these conversations, artist Carlotta Cataldi created four live visual summaries during the event. Each illustration distills the voices, visions, and key messages shared by speakers from around the world — from early warning systems and artificial intelligence to leadership, investment, and community-level action.

Scroll through the illustrations below to explore how science, solidarity, and storytelling come together to advance climate resilience — further, faster, together.

Illustrated infographic for World Meteorological Day 2025 depicting strategies for global climate action, including funding, partnerships, resource sharing, and leadership development.
This illustration created for World Meteorological Day 2025, held on 24 March 2025, captures key messages from the World Meteorological Day 2025 welcoming address, delivered by Celeste Saulo, Secretary-General of the World Meteorological Organization. It underscores the collective effort required to close the early warning gap, highlighting the importance of early investment, co-developing tools, mobilizing resources, ensuring country ownership, and enabling access to and use of technology—underlining leadership, innovation, and shared responsibility in saving lives and building resilience.
Carlotta Cataldi
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Infographic for World Meteorological Day 2025, emphasizing climate warnings and actions. Highlights themes like solidarity, equality, and sustainability with various quotes and statistics.
This illustration created for World Meteorological Day 2025, held on 24 March 2025 reflects the interventions by H.E. Mr Jürg Lauber, Permanent Representative of Switzerland to the United Nations Office at Geneva; H.E. Mr Mxolisi Nkosi, Permanent Representative of South Africa to the United Nations Office at Geneva; and H.E. Mr Tovar da Silva Nunes, Permanent Representative of Brazil to the United Nations Office at Geneva, during World Meteorological Day 2025. It highlights WMO’s pivotal role as a global leader in Earth system science. The illustration underscores that “warnings alone are not enough,” and calls for urgent action, solidarity, and collaboration to close the early warning gap. It conveys the urgency of the climate crisis, the significance of COP30 and the G20 presidency, and the shared commitment to a new paradigm rooted in sustainability, equality, and solidarity.
Carlotta Cataldi
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Illustrated visual summary for World Meteorological Day 2025 on scaling up technologies, featuring discussions on innovation, machine learning, and early warnings. Includes text on forecasts and resilience. World Meteorological Organization.
This illustration created for World Meteorological Day 2025, held on 24 March 2025, captures the essence of the panel discussion “Innovating and Collaborating Together to Scale Up Technologies”, spotlighting how early warnings can drive action only when grounded in sound science, precision and accessible tools. Speakers from Ghana (Ms Maureen Ahiataku), India (Ms Soma Sen Roy), the Philippines (Ms Thelma Cinco), and ECMWF (Mr Florian Pappenberger) emphasized the role of artificial intelligence, nowcasting, and co-production in building resilience — especially in tropical and vulnerable regions. The illustration underscores the importance of simplifying complex science, integrating local knowledge, and strengthening both the first and last mile of early warning systems.
Carlotta Cataldi
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Illustration for World Meteorological Day 2025 highlighting strategies in education and meteorology, featuring international workshops, collaboration efforts, AI technology, and scientific communication to address hazards.
This illustration created for World Meteorological Day 2025, held on 24 March 2025, brings to life the insights from the panel “Investing Together – Together to Mobilize and Share Resources”, emphasizing international collaboration, education, and the importance of tailored, anticipatory warning systems. With examples from China (Dr Yi Wang), the Santiago Network (Ms Carolina Fuentes Castellanos), and the World Bank (Mr Niels Holm-Nielsen), the discussion explores the role of South-South cooperation, leadership development, data accuracy, and cloud-based technologies as critical tools for bridging the early warning gap—particularly in sectors vulnerable to offshore and meteo-technological hazards.
Carlotta Cataldi
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Explore the WMO 75th anniversary website.