What are the two reasons that sailors feared storms at sea?

1. High winds and waves: Storms at sea can produce high winds and waves that can damage or even sink ships. In the age of sail, before the invention of modern weather forecasting, sailors were often caught off guard by storms and could not take evasive action.

2. Loss of visibility: Storms at sea can also cause severe loss of visibility due to rain, fog, or snow. This can make it difficult for sailors to navigate and can lead to collisions with other ships or land.