In the Portland-Metro area, occasional wind gusts are something we deal with at this time of year. Trees establish root systems in the top 24″ of soil which help them support their weight during occasional high winds or wind gusts. However, add heavy rains to the mix and the story can have a different ending. This is because soil saturated by heavy rain impacts soil compaction and soil structure. This change leaves trees less able to support their weight during high winds.
See video footage of the soil around the base of a tree which is heaving due to saturated soils and high winds.
Video here : https://youtu.be/jpKSk14FCP4