Early Warning Systems

OVERVIEW​

How can we ensure the most effective and timely response to a weather-related hazard? By anticipating its impacts through quantitative forecasts and continuous monitoring, we can be better prepared to manage and respond to it. Equally important is informing potentially exposed populations, enabling them to protect themselves by following pre-defined procedures. This is the core principle behind well-functioning Early Warning Systems (EWSs).

In a changing climate, where the frequency and intensity of many hazards – such as floods, droughts, and wildfires – are increasing, the role of EWSs in civil protection and emergency management has become critical.

Recognizing the importance of Early Warning Systems (EWSs), CIMA Research Foundation has been contributing to this field for over 20 years. Our efforts include developing EWSs for flood, wildfire, and more recently, drought risks, both in Italy and internationally.
An effective EWS begins with a clear understanding of the risks facing a community. The effectiveness of EWS relies heavily on accurate and comprehensive knowledge of the risks. Without this foundational knowledge, the EWS phases (monitoring, warning dissemination, and response) would not function properly.
Then, meteorological forecasts, integrated with hydrological, hydraulic, and wildfire models, along with continuous monitoring from in-situ and remote sensing data, predict the impacts on exposed elements such as populations, infrastructure, and agriculture. This information must be communicated in an accessible and actionable format to enable early action by institutions, stakeholders, communities and citizens.

Early action should be pre-planned and embedded into coordinated emergency plans with clear roles and responsibilities. The sustainable approach of the CIMA Research Foundation has led to the development of civil protection planning through a participatory method that transforms these plans from technical tools into community pacts.

CHALLENGES AND GOALS

While the climate crisis has made the implementation of Early Warning Systems urgent, it has also underscored the need to address vulnerabilities by considering the complex interactions between human activities and natural dynamics. This highlights the necessity of moving the discussion of risks beyond sectoral and purely technical dimensions, reintegrating it into the broader conversation of sustainable development.

Science cannot thrive without a legal framework and supportive policies and at the local level. Similarly, policies cannot function effectively without science and proper communication with citizens—making them aware of the measures they can adopt to modify their behavior toward risks. For EWSs to be effective, it is essential to harmonize science (and its inherent uncertainties) with laws, policies, and communities through a holistic approach to solving complex problems.

EWA logo

With this focus, CIMA Research Foundation is responding to the call launched by United Nations Secretary-General António Guterres in March 2022 to protect all people globally from weather and climate risks by 2027 through the implementation of impact-based Early Warning Systems, as part of the “Early Warning for All” Initiative.

“Today, one third of the world’s people, mainly in least developed countries and small island developing states, are still not covered by early warning systems… This is unacceptable, particularly with climate impacts sure to get even worse. Early warnings and action save lives. To that end, today I announce the United Nations will spearhead new action to ensure every person on Earth is protected by early warning systems within five years.”

UN Secretary-General António Guterres  on World Meteorological Day 23 March 2022

Handbook on Risk Knowledge for Early Warning Systems

The EW4All Initiative is built on four pillars, with the first, “Disaster Risk Knowledge and Management“, coordinated by UNDRR. This pillar aims to ensure that every country has the capability to systematically gather, analyze, and share information about potential risks. The goal is to develop a solid foundation of risk knowledge that supports effective early warning systems (EWS) and disaster preparedness efforts.

In this context, CIMA Foundation has produced , on behalf of UNDRR, the Handbook on Risk Knowledge for Early Warning Systems. The handbook, which is a practical guide and, at the same time, a technical support for all partners of the EW4All Initiative, brings together all available knowledge on the information chain for EWSs, and contains a focus on the application of this knowledge.

Introduced in 2024, it is structured around three cross-cutting principles: improving the standards for collecting risk data and information, incorporating local knowledge, and leveraging technological innovation to advance EWS capabilities.

CIMA Handbook EW4ALL 2024 1

Find out more about what we do in EWS by visiting the dedicated geographic pages:

Projects

UNDP Togo

UNDP Togo

The UNDP Togo project fits within the context of the Africa Multi-Hazard Early Warning and Early Action System – AMHEWAS, designed by African Union Commission, aiming at strengthening national emergency management systems.
BIANCO VINCENZO LUltima fonte

EWS4IGAD

The project Towards actionable impact-based early warning in Africa aims to expand hazard-based early warning systems towards systems based on impact prediction, considering exposure and vulnerability to floods and droughts.
IWRM Etiopia

Contribution to the improvement of the Integrated Water Resources Management (IWRM) for the Webi Shebele, Awash and Danakil Hydrographic Basins in Ethiopia

The project helps to improve drought resilience and reduce vulnerability to climate change in Ethiopia.
EWAS Lebanon

EWAS Lebanon

The project “Establishment of a Flood Early Warning System for two watersheds in Lebanon” aims to enhance disaster preparedness in Lebanon by establishing an Early Warning and Early Action system for floods in two vulnerable river basins.
CREWS Somalia

Greater Horn of Africa – Strengthening early warning and early action systems for meteorological, hydrological and climate extremes (Somalia)

Part of the CREWS Initiative, the project aims to strenghten the Early Warning System (EWS) and the Early Warning and Early Action connection in Somalia
Ready2Act

Ready2Act

Funded by AICS, the project Ready2Act: Enhancing coordination mechanisms and disaster preparedness capacities in Mozambique is led by the CIMA Foundation, with local support from WeWorld, and strategic guidance from the Department of Civil Protection.
GDA AID Disaster Resilience

GDA AID Disaster Resilience

Promoted by ESA, the GDA AID Disaster Resilience program is dedicated to strengthening disaster resilience, through the use of Earth observation tools, and focuses on mapping all components of the risk equation.
WHCA

WHCA – Water at the Heart of Climate Action Project

In February 2024, CIMA Research Foundation, at the request of WMO, began collaborating on the WHCA Project, dedicated to mitigating water-related risks and strengthening resilience of vulnerable communities in Ethiopia, Sudan, South Sudan, Uganda and Rwanda.

News

Establishing effective links between early warnings and early action: general criteria for floods. EU support to flood prevention and forest fires risk management in the Western Balkans and Turkey – IPA Floods and Fires (2023)

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The contribution of EO to DRR: an overview. European Space Agency (2024)

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