Summary

Data status: Best-track / reanalyzed (main)

Hurricane Gabrielle (2025) was active from 2025-09-17 18:00:00 to 2025-09-28 18:00:00 UTC. Based on IBTrACS data obtained 04/16/2026, 3,273,571 people experienced tropical cyclone-force (>= 17.49 m/s) winds and 0 people experienced hurricane-force (>= 32.90 m/s) winds across Portugal. No areas experienced Category 5 winds.

Table 1: Population exposed by country and storm intensity
Country Population exposed (tropical cyclone-force) Population exposed (hurricane-force)
Portugal 3,273,571 0

When accounting for total population, the table below shows the percentage of each country’s population exposed.

Table 2: Percentage of total population exposed by country and storm intensity
Country % Population exposed (tropical cyclone-force) % Population exposed (hurricane-force)
Portugal 35.3 0

The spatial extent of the impacts is illustrated in Figure 1, which maps exposure by wind intensity threshold at the second administrative unit (ADM2) level along with the storm track of Gabrielle.

Figure 1: Spatial distribution of exposure

Figure 1: Spatial distribution of exposure

Characterizing exposed areas

Figure 2 shows the distribution of relative deprivation (measured by population-weighted GRDI, aggregated to ADM2 level) and population for each exposed area, categorized by exposure status.

Figure 2: Socioeconomic and population distribution of exposed areas

Figure 2: Socioeconomic and population distribution of exposed areas

Furthermore, we list the top areas affected (categorized by exposure status) with the most population:

## *No areas experienced Category 5-force winds.*