Thousands evacuated as super typhoon Ragasa makes landfall in Philippines | BBC News

Key Concepts:

• Super Typhoon Ragasa (International name: Nando)
• Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA)
• Luzon Strait
• Southwest Monsoon
• Heavy Rainfall Warnings
• Storm Surge Warnings
• Impact-Based Forecasting
• Climate Change and Extreme Weather Events

1. Typhoon Ragasa: Current Status and Trajectory

• Ragasa is the strongest typhoon to hit the region this year.
• As of the interview, Super Typhoon Ragasa (Nando) is located near the coastal waters of the northernmost islands of the Philippines, having already passed over them.
• It is currently over the Luzon Strait, the area between the northernmost islands of the Philippines and Taiwan.
• The typhoon is expected to exit the Philippine Area of Responsibility within 12 hours and head towards southern China on Wednesday.
• Taiwan is not expected to be directly hit, but heavy rainfall is anticipated.

2. Impact on the Philippines

• Northern Luzon is expected to experience the most significant rainfall directly due to the super typhoon.
• Central portions of the Philippines are being affected by the southwest monsoon, causing moderate to heavy rains, including in Metro Manila.
• Over 10,000 evacuees are sheltering in the Philippines due to heavy rains and gale-force winds.
• The country's weather bureau warned life-threatening conditions are imminent with sustained gusts hitting 215 kilometers per hour.
• Schools and government offices have been closed in the Manila region and dozens of other provinces in anticipation of heavy rainfall.

3. Typhoon Comparison and Climate Change

• Super Typhoon Ragasa is the strongest tropical cyclone of the year for the Philippines and one of the strongest in recent years.
• The expert from PAGASA notes that while the first six months of the year saw weaker tropical depressions, stronger tropical cyclones with a higher chance of landfall in the central and southernmost Philippines are expected in the coming months.
• There is a link between climate change and the increasing intensity of typhoons. Studies suggest that stronger tropical cyclones, potentially reaching typhoon or super typhoon categories (minimum wind speeds of 120 km/h, with super typhoons reaching 180-200 km/h), are likely in the coming years/decades.

4. Preparedness and Warning Systems

• The Philippines has implemented measures for heavy rainfall, storm surge, and wind warnings.
• Warnings are issued frequently, with bulletins every 3 hours and heavy rainfall warnings also every 3 hours.
• Different categories of rainfall warnings are in place, each with specific impact assessments.
• The Philippines has learned from past typhoons, such as Haiyan in 2013, and now uses impact-based forecasting.
• Impact-based forecasting: Focuses on the potential impact of the weather on communities rather than just the size or intensity of the typhoon.

5. Regional Impact and Evacuations

• Cities in China's southern provinces are bracing for Ragasa.
• Authorities in Shenzhen plan to evacuate 400,000 people.
• Cathay Pacific expects to cancel over 500 flights as the typhoon approaches Hong Kong.
• Taiwan's state weather service predicts a chance of extremely torrential rain in the country's east.

6. Notable Quotes

• Bennison J. Estaha (PAGASA): "Super typhoon Ragasa so far is our strongest tropical cyclone as of this year and one of the strongest in recent years."
• Bennison J. Estaha (PAGASA): "We have learned from the past typhoons such as Hyen in 2013. That's why we have also impact based forecast. We're focused more on what the weather or what the typhoons will do to your community instead of just giving details as to as to what how large or what the typhoon is all about."

7. Technical Terms and Concepts

• Tropical Cyclone: A generic term for a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has closed low-level circulation.
• Typhoon: A mature tropical cyclone that develops in the northwestern part of the Pacific Ocean.
• Super Typhoon: A typhoon with maximum sustained winds of 185 km/h (115 mph) or more.
• Luzon Strait: The strait between Taiwan and Luzon, the largest island in the Philippines.
• Southwest Monsoon: A seasonal wind shift that brings heavy rainfall to the region.
• Storm Surge: An abnormal rise in sea level during a tropical cyclone, caused primarily by the storm's winds pushing water onshore.

8. Synthesis/Conclusion

Super Typhoon Ragasa poses a significant threat to the Philippines, Taiwan, and southern China. The Philippines, having learned from past experiences, is employing impact-based forecasting and issuing frequent warnings to prepare its citizens. The increasing intensity of typhoons is linked to climate change, highlighting the need for continued preparedness and mitigation efforts. The typhoon is expected to move towards southern China, prompting evacuations and flight cancellations.