Wintertime (October-to-March period) 99th percentile of sea level (sea surges) at Ostend has increased at a rate of +3 mm/year (+1 mm/year) from 1925 to 2000. Relationships between daily sea surge at Ostend and five weather regimes -Zonal (ZO), East Atlantic (EA), Greenland Above (GA), Blocking (BL), and Atlantic Ridge (AR) -over the northeast Atlantic and Europe (40°W-40°E, 30°-70°N) are analysed during the period of 1925-2000. More than 70% of sea surges ≥65 cm occur during the AR weather regime, ahead of low pressure travelling on a northern track from Iceland to Scandinavia. The relationships between monthly/wintertime frequency of the AR weather regime and 99th percentile of sea surge at Ostend tend to strengthen during the twentieth century: for example, correlation between wintertime frequencies of AR and 99th percentile of sea surge increases from 0.21 in 1925-1950 to 0.74 in 1975-2000. This increase is associated with the pressure rise over the near Atlantic, between (30°W and 15°W), (30°N and 50°N), leading to an increase in the frequency of strong surge-related pressure gradient during AR days.