荒天

1. Origins, structure, and basic meaning

• Structure: 荒天 is read as こうてん and is a noun for rough, hazardous weather involving strong rain, wind, or similar conditions.
• Basic usage: A reason for changing plans appears in 荒天のため行事を移す, while preparation appears in 荒天に備える.

2. Common pitfalls and similar expressions

• Rough weather affecting activity
  • It denotes weather severe enough to disrupt an outdoor event or voyage, not merely a cloudy day.
• Difference from 雨天
  • 雨天 neutrally means rainy weather, while 荒天 emphasizes violent or bad weather involving strong wind, heavy rain, or similar conditions.