PAGASA uses Geographic Information System in tracing places under cyclone signal
PAGASA Weather Division Chief Esperanza Cayanan demonstrates the Geographic Information System.
The process of mapping the tropical cyclone warning signal is now made easier and faster for Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).
This is through the use of Geographic Information System or GIS which automates mapping of places under cyclone signals.
Forcasters usually do the listing manually to trace the places that will be affected by the cyclone.
“Based on the map we would look for the areas under signal #1. So, we type it one by one. Sometimes, we overlook some details so there occurs some errors and the process is slower,” explained Esperanza Cayanan, PAGASA’s Weather Division chief.
Areas under cyclone signal on the map are color coded.
Blue is for signal #1.
Yellow for signal #2.
Orange for signal #3.
Red for signal #4.
Violet for signal #5.
The system will automatically show the list of the areas that will be affected by the threathening cyclone down to the municipal level.
“This is under testing. Though we have difficulty at the start but of course, we have to adjust. This is the trend now. PAGASA is under modernization so we need to automate. And we will also save time as compared with the manual process used to do by forecasters.
Yesterday, when tropical depression “Ambo” hit the country, PAGASA commenced sending regular alerts by issuing the bulletin every 3 hours.
(REY PELAYO/UNTV NEWS)
Monsoon rains prevailing over PH – PAGASA
MANILA, Philippines – The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said it would be rainy today (June 21) in Luzon as the southwest monsoon or habagat continues to prevail over the region.
Specifically, the weather system is affecting areas of MIMAROPA, Western Visayas, and the provinces of Zambales and Bataan where cloudy skies with scattered rain showers and thunderstorms is being experienced,
Meanwhile, Metro Manila and the rest of the country are also experiencing the effects of Habagat along with localized thunderstorms which bring partly cloudy to cloudy skies with isolated rain showers.
Weather authorities advice the general public to be prepared as these conditions may possibly cause flash floods or landslides due to moderate to at times heavy rains and in some areas due to severe thunderstorms.
Monsoon rains prevailing across PH – PAGASA
MANILA, Philippines — State weather agency PAGASA forecasts prevailing rains over Luzon due to the effects of the southwest monsoon or habagat.
As of Tuesday (June 15), cloudy skies with scattered rain showers and thunderstorms will continue to affect the entire Ilocos Region.
This may cause flash floods and landslides in areas susceptible to these hazards due to moderate to at times heavy rains.
Meanwhile, the combined effects of habagat and localized thunderstorms continue to bring partly cloudy to cloudy skies with isolated rain showers or thunderstorms in Metro Manila and the rest of the country.
These conditions are expected to cause possible flash floods or landslides due to severe thunderstorms thus, residents are advised to take precautionary measures against these hazards.
PAGASA has not seen any brewing storm or weather disturbance to date, though rains will prevail due to the onset of the rainy season.
Rains across PH due to southwest monsoon, ITCZ — PAGASA
MANILA, Philippines — Since it is the onset of the rainy season, wet days are expected across the country.
According to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), the southwest monsoon is now affecting Luzon and Western Visayas.
Specifically, Metro Manila and the rest of Luzon as well as Western Visayas will continue to experience cloudy skies with scattered rain showers and thunderstorms which may possibly cause flash floods or landslides due to moderate or at times heavy rains.
Meanwhile, the intertropical convergence zone (ITCZ) is affecting the rest of the country bringing partly cloudy to cloudy skies with isolated rain showers or thunderstorms. .
These conditions may cause flash floods or landslides due to severe thunderstorms in areas susceptible to these hazards.
PAGASA advises the public to closely monitor weather updates through the agency’s official website and social media accounts.