In early August 2025, an easterly wave emerging from the West African coast encountered abnormally warm waters and low wind shear, allowing it to consolidate into a tropical depression. Within forty-eight hours it was named Hurricane Erin, the season’s first Atlantic hurricane, moving westward along the climatological path of many “Cape Verde-type” systems.
This photo essay explores the geography of disaster and resilience in Cabo Verde, a nation whose archipelagic form and fragmented landscapes shape both vulnerability and recovery. The islands themselves are remarkably diverse: some, like Santo Antão, are lush and verdant, while others, such as São Vicente and Sal, are arid and sparsely vegetated. These contrasts reflect dominant wind patterns and rain-shadow effects that determine which islands capture Atlantic moisture and which remain dry.
Focusing on the flooding of August 11 on São Vicente, the essay traces how Erin’s rains exposed the infrastructural and social challenges of a nation without radar coverage. It also examines the coordinated efforts of Cabo Verde’s National Civil Protection, the Swiss Red Cross, and the constellation of volunteer groups and cleanup brigades that emerged during the response. These accounts reveal how Cabo Verde’s geographic fragmentation - its separation by sea -both deepened the crisis and defined its resilience.
Forecasting Erin’s local impact proved exceptionally difficult for Cabo Verde, which lacks meteorological radar. With no real-time precipitation or Doppler imaging, forecasters relied on satellite data and international advisories. That uncertainty left the islands exposed when the first heavy rains arrived. I had been living on São Vicente, one of the Barlavento (northern) islands, for five months while conducting field research under a Fulbright Scholar award. We knew the rainy season was approaching, but the scale of the rainfall and the intensity of the winds far exceeded what residents or meteorologists expected. When the storm formed offshore, few imagined it would transform the island overnight.
Cabo Verde, officially the Republic of Cabo Verde, is a chain of ten volcanic islands and several smaller islets located roughly 600 kilometers (370 miles) west of Senegal, along the Atlantic margin of West Africa. The nation lies at the crossroads of tropical and arid Atlantic climates, where the dry Harmattan winds from the Sahara often collide with moist equatorial systems. This geography makes Cabo Verde both strategically and scientifically significant. The islands act as a meteorological threshold, a birthplace for tropical storms that may later strengthen into major Atlantic hurricanes.
Cabo Verde is also celebrated for its Creole culture, a fusion of African and Portuguese influences; its cafe life and morna music made famous by Cesária Évora; and its striking volcanic landscapes, from the slopes of Fogo’s active peak to the terraced valleys of Santo Antão. Yet it is this same volcanic terrain that makes urban development and flood management extraordinarily difficult.
Between 01:00 and 06:00 UTC on August 11, 2025, only days after the island’s university graduation, a highlight of community life on São Vicente, the skies opened without warning. In just five hours, 192 millimeters (7.6 inches) of rain fell, surpassing the island’s annual average of 116 millimeters. What had been a week of celebration turned overnight into a scene of panic and isolation. Streets became torrents, electricity failed, and phone signals dropped. Many awoke to water rising through their doors and windows, unsure whether to move uphill or stay put in the dark. When daylight came, diesel and sewage mingled in the standing water, filling the air with a sharp, chemical odor that clung to the flooded neighborhoods.
The lateral winds and rain of Erin were so powerful that they forced water through windows and door frames, flooding even my third-floor apartment overlooking Mindelo Bay. Inside, curtains billowed with the gusts, and by dawn the floor was slick with runoff driven horizontally by the storm. This flooding was minimal compared to the damage borne by those living on hillslopes or near areas of major runoff.
This intensity underscored how little the city’s infrastructure was prepared for rainfall of such volume and force. National Civil Protection organized response teams using high-clearance vehicles and foot patrols to deliver food, water, and basic medicine. Communications were strained but functional enough to coordinate across districts. And while Cabo Verde had no radar coverage, responders relied on satellite rainfall estimates, portable gauges, and community spotters to direct resources where they were most needed.
Cabo Verde’s fragmented geography magnified the disaster in ways that were as logistical as they were environmental. Although the islands share a common identity, each is topographically and climatically distinct, ranging from the green highlands of Santo Antão to the arid volcanic plains of São Vicente and Sal. These contrasts mean that even a single storm can have uneven effects: flash flooding on one island, wind damage on another, and almost nothing on a third.
The lack of permanent bridges or land connections between islands means that all movement of people, goods, and emergency aid depends on ferries and to a lesser extent, aircraft, systems that are immediately grounded when the weather deteriorates. During the August 11 floods, rough seas closed the port of Mindelo, isolating São Vicente from nearby Santo Antão, just 16 kilometers away. The short crossing by ferry, normally a 45-minute trip, became impossible for nearly two days.
This isolation deepened the sense that each island had to cope alone. While Santiago in the south remained mostly dry, its government offices and supply depots could not easily dispatch assistance northward for several days. Even communication channels were strained, as patchy cellular service and power outages interrupted coordination among the islands. Cabo Verde’s geography, celebrated for producing distinct regional identities and rich cultural diversity, suddenly became a physical barrier to relief. Plastic pollution washed ashore the next day, a stark reminder of how interconnected the islands were despite their separation. Standing amid diesel-slick water during my fifth month on São Vicente, I watched neighbors sweep mud from doorways, rinse walkways with seawater, and share bottled water and food with others whose homes had flooded.
At the same time, the geography that hindered logistics also shaped its resilience. Families accustomed to sending goods and remittances between islands quickly adapted, using informal communication networks and personal contacts to share information and coordinate supplies when official systems failed. Community radio, neighborhood groups, and messaging apps became critical tools for staying connected across the islands.
The Civil Protection Service led the response, aided by the Swiss Red Cross, Ministry of Health, and local NGOs. Their priorities were clean water, antibiotics, and sanitation supplies to prevent waterborne illness. Every phase of recovery was slowed by transport gaps between islands. As one official noted, “When the sea is closed, we must act as if each island is its own country.”
Spatial marginalization of communities in Mindelo was evident in the unequal distribution of essential services. Aid workers needed to physically travel long distances to deliver food and supplies, highlighting how geographic isolation reinforces social and economic exclusion. Such interventions underscore the dependence of marginalized regions on external support and reveal how limited infrastructure perpetuates inequality in access to basic resources.
Emergency response efforts reflected the decentralized principles of Ehrlichmann’s Social Impact model, emphasizing community networks and localized decision-making. With formal institutions overstretched, neighborhood committees and civic groups took initiative. They coordinated evacuations, cleanup, and resource sharing without waiting for official directives with input from a transnational working group we created with Nepalese, USA, and Portuguese partners.
These social networks were able to mobilize quickly and adapt under stress. In Mindelo, such informal coordination often filled the gap left by damaged infrastructure, allowing communities to act faster than centralized systems could respond. This grounded, cooperative response showed how social capital operated as a kind of emergency infrastructure, channeling information and support when physical systems failed.
The floods also revealed how urban planning and land management shape vulnerability. On São Vicente, many homes built on bare volcanic slopes without vegetation slid into ravines as runoff intensified. Construction often proceeds informally, without geological assessment or drainage design, because the city of Mindelo has no urban planning office to regulate or guide development. This lack of institutional oversight means that building decisions fall largely to individual property owners, resulting in dense settlements on unstable terrain. When the rains came, poorly anchored foundations and exposed hillsides became conduits for mud and debris.
In contrast, Santo Antão, though also battered, benefitted from modest reforestation and terraced agriculture that slowed erosion. While there was damage on this neighboring island, its recovery was much quicker than Sao Vicente. This comparison underscores how vegetation and zoning, even at small scales, can mitigate disaster impacts in volcanic island environments.
The collapse of local commerce vividly reflects the economic dimension of spatial marginalization. As shown in these images, once-active community hubs now stand deserted. Their devastation brought local trade to a halt and halting the flow of goods and income essential to regional stability.
In the aftermath of the storm, respiratory irritation and sanitation risks became widespread. Diesel residue and decaying waste made the air harsh to breathe. Health organizations distributed masks, disinfectants, and clean-water kits—a scene reminiscent of the COVID-19 era, when masks once symbolized global crisis but now served as protection against diesel fumes and bacterial contamination. The imagery was strikingly familiar, though born of a very different emergency.
Mindelo’s desalination plant on São Vicente normally processes about 20,000 m³ of seawater per day, supplying most of the island’s drinking water. During the August 2025 storm, flooding and landslides damaged its seawater intake and pumping systems, cutting output to roughly 7,800 m³ per day. Repairs have since restored partial production, but the plant has not yet returned to full capacity.
As reconstruction advanced, policymakers called for national radar systems and updated zoning codes. In the first weeks after the floods, impact networks from around the world offered help. Volunteers from Cabo Verde’s litter cleanup brigades partnered with the global OpenStreetMap and Colorado GIS communities to map damage. Portuguese mechanical engineers and Nepalese crisis management experts provided logistical and technical guidance for long-term planning.
The floods of August 11 were not only a meteorological event; they revealed the geographic and infrastructural vulnerabilities that shape daily life in this West African archipelago. They showed how the same sea that connects Cabo Verde’s islands can also separate them in crisis, how uneven terrain and limited transport magnify risk, and how social cohesion often fills the space where formal systems falter. From São Vicente, it was clear that the absence of radar and rapid weather data left little room for preparation. For a nation positioned at the front line of Atlantic storm formation, the need for real-time observation and island-specific warning systems is urgent. Yet just as striking was the resilience of ordinary citizens, the volunteers who organized neighborhood cleanups, the youth who relayed messages between communities, and the diaspora who mobilized from abroad to provide support.
Cabo Verde’s geography is both its strength and its challenge: ten volcanic islands bound by shared culture and music, yet divided by ocean and uneven infrastructure. The August floods demonstrated that vulnerability here is layered. It is fundamentally rooted in land use, limited urban planning, and the realities of small-island logistics, but it illustrates how community resilience is deeply social.
As climate change intensifies extreme weather across the tropics, Cabo Verde’s experience offers an essential lesson. Geography may define exposure, but community defines response, one that extends beyond physical boundaries. The spatial connections between Cabo Verde and its diaspora (spanning Lisbon, Rotterdam, Boston, and beyond) show that the nation’s cultural geography is not confined to its shores. These global linkages, forged through migration, communication, and shared identity, form a living geography of care that continues to shape how Cabo Verde endures and rebuilds in the wake of disaster.