Super Typhoon Ragasa: 7 Devastating Climate Impacts in 2025

What is Super Typhoon Ragasa?

Super Typhoon Ragasa hit Hong Kong and northern Philippines with sustained winds of 280 kmph, making it the most intense tropical cyclone recorded in 2025.
• The typhoon caused heavy rain, significant storm surge, and coastal waters rising more than 1.5 meters in some areas.

Formation of Tropical Cyclones:

• Tropical cyclones (hurricanes in the Atlantic) form in tropical oceans where warm air rises from the ocean surface, creating low-pressure zones, clouds, and thunderstorms.
  • Cyclones rotate cyclonically:

• Counterclockwise in the Northern Hemisphere
• Clockwise in the Southern Hemisphere

“Dirty Side” and Intensity:

• Typhoons have a “clean” side and a “dirty” side:

• Dirty side: Experiences strongest winds and storm surge in the Northern Hemisphere.
• Clean side: Less destructive.
  • Ragasa’s maximum sustained winds reached 280 kmph, categorizing it as a Category 5 Super Typhoon on the Saffir-Simpson Hurricane Wind Scale.
  • Sustained wind measurement:
• WMO: 10-minute average
• NOAA: 1-minute average

Factors Behind Ragasa’s Intensity:

Ocean Surface Temperature: The waters where Ragasa formed were about 1°C above the long-term average, providing extra energy for intensification.
Climate Change: Warmer oceans lead to stronger, longer-lasting tropical cyclones.
Regional Variation: Cyclone intensification varies regionally due to temperature, atmospheric conditions, and ocean currents.

Impact:

Severe wind damage, flooding, and storm surge in coastal areas.
Disruption to communities in northern Philippines and Hong Kong.
Highlights the increasing intensity of tropical cyclones due to climate change and warming oceans.