quote 4 - spits like a tame cat turned savage
oxymoron highlights natures unpredictability and reinforces its power ( must constantly adapt to scenarios as it soon becomes instable- adjective savage links to merciless weather has no remorse for the islanders ,
presents through personification weather as animalistic reinforce power nature has ad its volatility
spits is a violent verb and could resemble a cat hissing at an univited guest which could reflect how nature feels attacked by inhabitants
tame cat creates a sense of familiarality and comfort