Dual Threats: Flood and Fire Risk in Colombia

 

The most recent outputs from our Early Warning System models provide a sobering view of Colombia’s current vulnerability: large swathes of the country are facing both elevated flood and fire risks—sometimes in overlapping regions and timeframes.

1. Flood Risk: Infrastructure and Populations Exposed

The first map, “Estimated Damage from Flood Risk Model,” makes clear that flood hazards are not only widespread but pose significant risks to both critical infrastructure and communities:

• Oil Infrastructure & Electric Grid:
  The model shows that 100% of mapped oil infrastructure and electric grid length is at risk of flood damage. This is a stark indicator of how flood events could disrupt energy supplies, logistics, and national economies.

• Urban and Rural Areas:
  Nearly 4% of Colombia’s urban area and cropland, and over 41% of the population, are estimated to be exposed to flood risk zones. Notably, oil palm plantations and protected areas also show significant risk, threatening both livelihoods and biodiversity.

• Spatial Distribution:
  The risk is most intense along the Magdalena River valley and key Andean foothill regions—places where high population density and economic assets intersect with hydrological vulnerability.

2. Fire Risk: The Other Side of the Coin

The second map, representing fire risk, reveals a different but equally alarming picture:

• Andean and Amazonian Edges:
  Fire risk is concentrated along the eastern Andes and western Amazon basin, with critical hotspots also evident in southern and southwestern Colombia, and even extending into neighboring countries.

• Anthropogenic Pressure:
  Many of these fire-prone areas coincide with zones of rapid land use change, deforestation, and agricultural expansion. This means that, while some areas are at risk from floods, others are at risk of catastrophic fire, sometimes within the same landscapes.

3. Simultaneous Hazards: A New Normal

Colombia’s climate extremes are not mutually exclusive. This season, thanks to the compounding effects of El Niño/La Niña cycles, climate change, and land management, it is increasingly common for adjacent regions—or even the same communities—to face both flood and fire risk in a single rainy season.

• Why Does This Matter?
  These overlapping hazards pose a unique challenge to emergency management, as resources and response strategies for floods (evacuation, water safety) may be in direct conflict with those for fires (fire breaks, controlled burns).

• Compounded Vulnerability:
  The simultaneous exposure means that the same communities may have to prepare for or recover from both types of disasters, with limited time or resources to adapt.

4. The Role of Early Warning and Risk Mapping

These maps demonstrate the value of integrated, high-resolution early warning systems. By quantifying exposure across infrastructure, agriculture, natural ecosystems, and human populations, we can:

• Target the most vulnerable zones for monitoring and intervention.

• Support better-informed decisions for emergency planning, resource allocation, and community education.

• Highlight the need for coordinated, cross-sector adaptation strategies.

Conclusion

Colombia’s experience this season illustrates a growing reality for many tropical and subtropical nations: climate extremes are intensifying and often co-occurring. Without integrated, science-based early warning systems and holistic adaptation planning, the impacts on infrastructure, livelihoods, and ecosystems will only worsen.

Now is the time to invest in data, technology, and community engagement—so we can anticipate, not just react to, the risks ahead.