Dear [Friend's Name],
   I hope this email finds you well. I wanted to share with you a natural disaster I witnessed a few years ago. It was a devastating experience that I will never forget.
   I was visiting a coastal town in my country when a typhoon hit the area. The winds were incredibly strong, and the rain was pouring down heavily. The streets were flooded, and buildings were destroyed. I saw people crying and struggling to find shelter.
   The aftermath was even more shocking. The town was left in ruins, and many people lost their homes and livelihoods. It was heart-wrenching to see how the disaster had affected so many lives.
   Although it was a terrifying experience, it also made me realize how vulnerable we are to the forces of nature. It taught me to appreciate life and to always be prepared for emergencies.
   I hope to hear from you soon and catch up on everything that's been happening in your life.
   Take care, [Your Name]