Cyclone Chedeng (Songda)

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Meteorological Report:
Meteorological REPORT on CHEDENG-Songda

A new cyclone, the third of the season, was detected on May 20, 2011, east of The Philippines. It has been named "CHEDENG" (SONGDA). After gaining strength over the open ocean for two days it had enough energy to be a categorized as a Tropical Cyclone. On May 23, Chedeng (Songda) entered the Philippine Area of Responsibility (PAR). Once again, the Philippines faced the threat of a natural catastrophe.

Chedeng (Songda) continuously gained strength while it moved in a northwestern direction along the coast. The typhoon reached its maximum strength in the course of May 27, increasing to maximum sustained winds of 195 km/h near the center and gustiness of up to 230 km/h. During that day, PAGASA issued a Public Storm Warning Signals (PSWS) No. 3 (101-185 km/h) for the Batanes Group of Islands.

In the late evening of May 27, Chendeng started to slow down and increase in speed, while it moved generally north northeast towards the islands of Japan. Its travelling speed increased to 32 km/h on May 28.

After being downgraded, Chedeng battered Okinawa with high winds and heavy rain, before moving up to mainland Japan, weakening further. In the afternoon of May 29, the typhoon became extratropical south of Shikoku Island.

Flooding due to the continuous strong rains has been reported for the Provinces of Maguindanao and Lanao del Sur, affecting almost 20,500 families with sometimes waist-deep floodwaters. Another eleven incidents of flooding were reported, including three landslides. A flashflood incident in Davao del Norte, one out of eight monitored in total, affected another 16,000 persons.

A total of 82,000 families comprising almost 400,000 persons were affected in 497 barangays of 49 municipalities and 7 cities, according to The National Disaster Risk Reduction and Management Council (NDRRMC). Chedeng's damage to agriculture and infrastructure amounts to PhP 12,328,983, mainly in Sto. Tomas in the Davao del Norte region.

In the Philippines Area of responsibility (PAR), NDRRMC reported four casualties, two due to drowning and one due to a landslide. The fourth victim was a miner that got trapped inside a tunnel in Tuba, Benqet.

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Chedeng

TC Warning Graphic, showing the actual position on May 30, 2011 and the predicted track of cyclone Chedeng (Songda). (Source: Joint Typhoon Warning Center, JTWC)