嵐(あらし) arashiは wa数(すう)時(じ)間(かん) suujikanおさまらなかった osamaranakatta。 The storm didn't let up for hours. Literal Storm [topic-は] several-hours didn't-subside. おさまらなかった uses おさまる (to subside/settle) instead of 静まる — near-synonyms for storms dying down. おさまる is slightly broader, used for both weather and disturbances. weather
嵐(あらし) arashiは wa数(すう)時(じ)間(かん) suujikanおさまらなかった osamaranakatta。 The storm didn't let up for hours. Literal Storm [topic-は] several-hours didn't-subside. おさまらなかった uses おさまる (to subside/settle) instead of 静まる — near-synonyms for storms dying down. おさまる is slightly broader, used for both weather and disturbances. weather