PAGASA raises ‘yellow alert' in Metro ManilaFriday, July 20, 2012 08:10 AM Views : 763ABS-CBN News
Weather bureau PAGASA on Friday raised a "yellow alert" over Metro Manila due to continuous rains.
Weather bureau PAGASA said that as of 12 p.m., moderate to heavy (5 to 12 millimeter per hour) of rains will prevail over the southern part of Metro Manila.
"Pasay, Taguig, Parañaque, Las Piñas and Muntinlupa, and may also effect Manila, Pasig, Mandaluyong and San Juan. Rain may prevail for 3 hours," PAGASA said in its official Twitter account.
PAGASA issues the following alerts when there are strong rains but no storm is present:
Yellow – 7.5 to 15 mm rainfall expected within one hour
Green – 15 mm to 30 mm rainfall expected within one hour
Red – 30 mm and above rainfall expected within one hour
PAGASA is monitoring an active low pressure area (ALPA) that was spotted 330 kilometers east of Tuguegarao as of 8 a.m.
The ALPA, combining with the effects of the southwest monsoon (hanging habagat), will "bring scattered rainshowers and thunderstorms to widespread rains and thunderstorms in Luzon and Visayas which may trigger flashfloods and landslides."
Should the active LPA becomes a cyclone, it will be named "Ferdie." It will be considered a tropical depression once it gains wind strength between 55 and 64 kilometers per hour.