Weather Phenomena

• Tropical Cyclone Basics
  • Tropical Cyclone Classification
  • Tropical cyclone names in the western North Pacific
  • Structure of Typhoons
  • Swells from distant typhoons
  • Why do tropical cyclones require sea surface temperatures of 26°C or above to form?
  • Very hot weather ahead of an approaching tropical cyclone
  • Influence of Tropical Cyclones on Visibility in Hong Kong
  • Extra-tropical Cyclone vs Tropical Cyclone
  • What is "Fujiwhara Effect"?
• Thunderstorms and Lightning
  • The Science of Thunder and Lightning
  • What are "Thunderstorms"？
• El Nino and La Nina
  • What is "El Nino"? (in Chinese only)
  • What is "El Nino"? and What is "La Nina"? (in Chinese only)
• Miscellaneous
  • An Introduction to Heat Stress
  • How is a tornado rated？
  • What is Foehn wind?
  • Fog Explained
  • What is "Radiation Cooling"?
  • What is a "Trough"? (in Chinese only)
  • What is "Hailstorm"? (in Chinese only)