Sierra Leone Flood Impact Assessment for September 2025

WFP Automated Disaster Analysis & Mapping (ADAM) provides geospatial data on a flood event in Sierra Leone on September 18, 2025. The dataset estimates the flood affected approximately 37,351 people and 211 hectares of cropland. It was last updated on May 21, 2026.

Use Cases

• Assessing population displacement based on estimated affected people count
• Evaluating agricultural damage based on affected cropland area
• Mapping flood extent for logistical planning based on GEOTIFF imagery
• Modeling disaster severity for resource allocation based on integrated socio-economic information

Strengths

• Provides specific impact estimates: 37,351 affected people and 211 hectares of damaged cropland
• Data originates from an operational humanitarian analysis system (WFP ADAM)
• Geospatial format (GEOTIFF) enables direct mapping and overlay with other layers

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect geographic bias inherent to the specific event and platform

Provenance

Source

WFP Automated Disaster Analysis & Mapping

Collection Method

Automated collection, analysis and mapping of geospatial and socio-economic information following sudden onset emergencies.

Time Range

Event date: September 18, 2025

Freshness

Last updated 2026-05-21 22:10:45.257387; freshness should be verified

Geography

Sierra Leone