Senses
天有不测风云，人有旦夕祸福/ 天有不測風雲，人有旦夕禍福 anything can happen
Fortune is as unpredictable as the weather, and every day may bring luck or disaster; used to express that something unexpected may happen at any moment.
天有不测风云，人有旦夕祸福/ 天有不測風雲，人有旦夕禍福 life is unpredictable
nature has unexpected storms and humans have sudden misfortunes; used to describe the unpredictability of fate or life's changing fortunes