Orange rainfall warning extended on NCR, nearby provinces-A A +A
Tuesday, August 20, 2013
MANILA (Updated 4:17 p.m.) -- As of 4:10 p.m., the state weather bureau downgraded the red rainfall alert to orange in Metro Manila, Rizal, Cavite, Bulacan, Pampanga, Tarlac, Zambales and Bataan. Heavy to intense rainfall is expected in these areas in the next three hours.
"Meanwhile, moderate to heavy rains is affecting Northern Quezon and Laguna and most likely to continue for the next three hours," The Philippine Atmospheric. Geophysical and Astronomical Services Administration (Pagasa) said.
These areas shall experience rain between 15 and 30 mm within an hour, and it may persist for the next three hours. The heavy downpour is caused by the Tropical Storm Maring-enhanced Southwest Monsoon.
Pagasa cautioned the public, "Severe flooding is expected."
The color-coded rainfall alert scheme of Pagasa intends to help the public prepare for the possibility of disasters like flood and landslides. Yellow means light to moderate rain. The public, at this level, should be vigilant for further updates. Orange means moderate to heavy downpour wherein the public should stay alert for possible flooding. Red signifies heavy to intense rain. At this level, residents in low-lying areas are advised to evacuate.
Pagasa said in its 11:00 a.m. bulletin, Tropical Storm Maring was spotted at 560 km East Northeast of Itbayat, Batanes as of 10:00 a.m. Maring packs wind of 95 kph and gustiness of 120 kph. The tropical storm remains stationary in the past few hours but it is forecast to move North at 11 kph. It will continue to strengthen the Southwest Monsoon and batter Luzon and Western Visayas, Pagasa said.
The storm is expected to make landfall over Northern Taiwan and southeastern China after leaving the Philippines on Thursday.
While on its way out, however, Pagasa said Maring may bring heavy to torrential rain within its 500-km diameter, and continue to enhance the southwest monsoon affecting Luzon and Western Visayas.
In 2009, Tropical Storm Ondoy recorded 455 mm of rainfall at the Pagasa Science Garden from Sept. 26 to 27. Last year, the surge of the Southwest Monsoon recorded 323 mm of rainfall in the same area. On the other hand, from August 18 to 19, the Science Garden recorded rainfall of about 174 mm.
But Pagasa officials cautioned the public from comparing this weather condition to the previous year's monsoon surge, saying that this year's Habagat has a different tempo.
In another briefing, Pagasa said that the current monsoon rain already exceeded the recorded accumulated rainfall amount of Tropical Storm Ondoy.
Meanwhile, the Manila Observatory noted that Southern Metro Manila recorded the highest rainfall amount.
On the other hand, the Southwest Monsoon also affects Visayas. Based on Pagasa's 5:00 a.m. forecast, the Western Visayas will experience monsoon rains which may trigger flashfloods and landslides. Monsoon rain, just like what Metro Manila and some parts of Luzon and Visayas are experiencing, are typically torrential, and may be accompanied by winds up to 50 kph.
Pagasa said, the rest of Visayas shall have cloudy skies with light to moderate rain and thunderstorms.
Mindanao, on the other hand, will be partly cloudy to cloudy with isolated rain showers and thunderstorms.
Pagasa also issued gale warning on the seaboards of Luzon, including the seaboards of Batanes, Calayan, Babuyan, Cagayan, Isabela, Ilocos Norte, Ilocos Sur, La Union, Pangasinan, Aurora, Zambales and Bataan, Metro Manila, Cavite, Batangas, Palawan, Oriental and Occidental Mindoro, Camarines Provinces, Catanduanes, Albay, Sorsogon , Quezon including Polillo Island, Marinduque, Romblon, Masbate, and Burias Island. These coastal areas shall brace for waves between 3.4 to 5.o meters high.
At 11:30 a.m., Manager of La Mesa Dam said on television that the dam is overspilling. The state weather bureau warned parts of Quezon City and the Camanava to be likely to be affected by flooding.
In its 9:30 a.m. briefing, Pagasa said that while Ambuklao and Binga dams in Northern Luzon have opened gates, the spillover is being caught by San Roque dam in Pangasinan. Ambuklao and Binga dams both have two gates opened, while Magat Dam has one gate opened.
STATUS OF MONITORED MAJOR RESERVOIRS IN LUZON as of 6 AM today 20 August 2013 http://t.co/V5qRS5NwNm
— PAGASA-DOST (@dost_pagasa) August 20, 2013
Accoring to Pagasa's Hydrometeorological Division, the river basins of Agno, Pampanga, Bicol and Cagayan remain under flood watch while Magat Sub-basin is "under spilling situation."
Meanwhile, residents in Barangay 160 in Caloocan City have evacuated after the water elevation at gateless La Mesa Dam in Quezon City went beyond its spilling level of 80.15 meters.
"As of 11:45 a.m., La Mesa Dam level is 80.16 meters, already spilling. Residents along Tullahan River are advised to heed call to evacuate," said Manila Water spokesperson Jeric Sevilla on Twitter.
Rising water level at the dam causing excess water to overflow is expected to affect the low-lying areas along the Tullahan River, Fairview and Novaliches in Quezon City and the Camanava (Caloocan, Malabon, Navotas, Valenzuela) area.
Bad weather caused the cancellation of flights, classes, work in some government agencies, volleyball and basketball games of tournaments and even the engagements for Tuesday of President Benigno Aquino III. (SFP, JK, Virgil Lopez/Sunnex)