Philippine Atmospheric Geophysical and Astronomical Services Administration

Tropical Storm Chedeng – Sunday 22 May 2011 update

The Philippine Atmospheric Geophysical and Astronomical Services Administration tracked tropical storm Songda (Philippine name: Chedeng) at 1,070 kilometers East of Northern Mindanao. That was 10 o’clock in the morning, local time, moving towards the Philippines at 11 kilometers per hour. The Philippine weather bureau is still using the International codename because the tropical storm is outside the Philippine area of responsibility. @dost_pagasa will switch to “Chedeng,” as soon as it enters the Philippines, and will likewise publish storm track projections.

The weather bureau noted that rainshowers and thunderstorms in Metro Manila is not due to tropical storm Chedeng. @dost_pagasa says it is because of local convection that forms thunderstorm clouds.

Current projections by Weather Underground reveal that Songda could reach over 200 kilometer per hour winds, with gusts reaching 250 kilometers per hour, and is projected to be at latitude 15.1, longitude 126.2 on Thursday, 26 May 2011 as a Category 3 storm.

Image credit: Weather Underground


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Typhoon Bebeng strikes Philippines

Tropical storm Bebeng (International: Aere) struck eastern Philippines. The storm brought 85 kilometer winds, and much rain.

Editor’s Note: see Typhoon Bebeng strikes the Philippines for 9 May 2011 (Monday morning) update. This entry has been superseded.

For Images of Metro Manila Traffic and Flood Watch for Sunday 8 May 2011 see this entry.

According to the Philippine Atomospheric Geophysical and Astronomical Services Administration was located 70 kilometers North of Daet, Camarines Norte. It still retained its maximum sustained winds of 85 kilometers per hour. According to PAGASA, “Tropical Storm Bebeng is expected to enhance the southwest monsoon and bring rains over the rest of Southern Luzon and of Visayas.”

See Metro Manila Storm and Flood Watch

Projected storm tracks from PAGASA and Weather Underground that Bebeng will hit Northern Philippines beginning Monday morning. PAGASA also updated their Storm Track projection:

The Philippine weather bureau had raised storm signal alerts over a number of provinces.

Storm signal no. 2:
Isabela, Quirino, Aurora, Nueva Ecija, Northern Quezon, Polillo Island, Nueva Viscaya and, Camarines Norte.

Storm signal no. 1: Catanduanes
Albay, Burias Island, Camarines Sur, Southern Quezon, Marinduque, Batangas, Laguna, Cavite
Rizal, Bulacan, Bataan, Pampanga, Tarlac, Zambales, Pangasinan, La Union, Benguet, Ifugao
Mt. Province, Ilocos Sur, Kalinga, Cagayan and Metro Manila.

Signal no. 2: Sorsogon, Albay, Camarines Sur, Camarines Norte, Catanduanes, Polilio Island, Quezon, Burias Island, Ticao Island, and Northern Samar.  These provinces will experience 60 to 100 kilometer winds.

Signal No. 1 was raised over Masbate, Marinduque, Romblon, Laguna, Rizal, Bulacan, Nueva Ecija, Nueva Viscaya, Quirino, Aurora, Isabela, Eastern Samar , and Western Samar.  PAGASA projects that these provinces will have 30 to 60 kilometer winds.

Residents of low lying, and mountainous areas under storm signals are advised to be watch out for flash floods and landslides.  Likewise residents of coastal areas are to be on alert for storm surges.

Image credit:

Typhoon Aere Stormtrack via Weather Underground;

PAGASA stormtrack, and rainfall map, public domain