Fig. 3

Analysis of spills that coincided with onshore winds above 6.5 m/s over the 2022 and 2023 period. Overflow events have been reported as (a) co-spill days per month aggregated across the 35 sites, (b) co-spill duration per month aggregated across the 35 sites, and (c) cumulative co-spill duration per month with accumulated spill hours from each site counted independently. The blue dashed line in (a–c) is illustrative of the pattern of monthly rainfall (mm) over the same period. Measures of rainfall, wind direction, and wind speed were all taken from Rame Head weather station for this analysis.