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As of 3:00 a.m. today, a Tropical Depression was spotted at 2,015 kilometers east of Southern Luzon. According to PAGASA Weather Forecaster Loriedin Dela Cruz, though the Tropical Depression is not expected to make landfall, it may enter the Philippine Area of Responsibility (PAR) tomorrow afternoon (September 23). Once it becomes a Tropical Storm, it will be called by its local name, “Paeng”.

Meanwhile, the Intertropical Convergence Zone (ITCZ) continues to affect Southern Luzon, Visayas and Mindanao. This weather system brings cloudy skies with scattered rain showers and thunderstorms in MIMAROPA, Visayas, Zamboanga Peninsula, Northern Mindanao and CARAGA.

Partly cloudy to cloudy skies with isolated rain showers will be experienced in Metro Manila and the rest of the country.

The Intertropical Covergence Zone (ITCZ), which is an imaginary line where the Northern and Southern air meet, brings cloudy skies with scattered rain showers and thunderstorms in Metro Manila, Central Luzon, CALABARZON, MIMAROPA, Western and Central Visayas and Mindanao. The rest of the country will experience partly cloudy to cloudy skies with isolated rain showers caused by localized thunderstorms.

According to PAGASA Weather Forecaster Gener Quitlong, two weather disturbances are being monitored. First is the LPA outside the Philippine Area of Responsibility (PAR) located 2,345 kilometers (km) west of Mindanao. It has no direct effect yet on the country, but is expected to enter PAR by Friday or Saturday, causing scattered rains in the country. The second weather disturbance, a shallow Low Pressure Area, is near Palawan, but is expected to dissipate in the following days.­­­

 

No gale warning is issued today.

 

The Intertropical Convergence Zone (ITCZ) has oscillated and is now affecting Southern Luzon and Visayas.

ITCZ is characterized as an area where winds coming from the Northern and Southern Hemispheres meet; this interaction results to rains in the affected areas.

As this weather system prevails, Metro Manila, Bicol Region, CALABARZON, MIMAROPA, Aurora and Visayas will experience cloudy skies with scattered rain showers and thunderstorms. Elsewhere, partly cloudy to cloudy skies prevail only with chances of localized thunderstorms.

The Intertropical Convergence Zone (ITCZ) is affecting Eastern Visayas and Mindanao.

ITCZ is characterized as an area where winds coming from the Northern and Southern Hemispheres meet; this interaction results to rains in the affected areas.

As this weather system prevails, cloudy skies with scattered rain showers and thunderstorms will be experienced in Eastern Visayas, Caraga and Zamboanga Peninsula. In the rest of the country including Metro Manila, partly cloudy to cloudy skies will prevail only with isolated rain showers or thunderstorms.

Rains, induced by three weather systems, will make flash floods and landslides possible in some parts of the country.
 
At 3:00 a.m., the Low Pressure Area (LPA) was estimated at 265 kilometers southwest of Puerto Princesa City, Palawan. As the Tail-end of a Cold Front dampens the eastern sections of Southern Luzon and Visayas, the Northeast Monsoon brings rains in portions of Northern Luzon.
 
In the next hours, Bicol Region, Quezon, Palawan, Eastern Visayas and Zamboanga Peninsula will experience cloudy skies with scattered rain showers and thunderstorms that may trigger flash floods or landslides. In Cagayan Valley, Cordillera and Ilocos Region, partly cloudy to cloudy skies will prevail with isolated light rains. In the rest of the country, including Metro Manila, partly cloudy to cloudy skies or generally fair weather can be enjoyed with possible isolated rain showers.
 
Gale warning is still hoisted in the northern seaboards of Northern Luzon that covers Batanes, Babuyan Group of Islands, the northern coasts of Cagayan and Ilocos Norte. In these areas, fishing boats and small seacraft are prohibited from venturing due to rough to very rough seas.
 

 
After a short break last week, the Northeast Monsoon is back and has further intensified.
 
Today, the Northeast Monsoon or Amihan brings cool breezes and rains in Northern and Central Luzon. Meanwhile, the Intertropical Convergence Zone (ITCZ) and Easterlies dampen Mindanao, and the eastern sections Southern Luzon and Visayas, respectively.
 
Today, Quezon, the Bicol Region, Eastern Visayas and Mindanao will have cloudy skies with scattered rain showers and thunderstorms. In Metro Manila, Ilocos Region, Cordillera, Cagayan Valley, and Central Luzon, partly cloudy to cloudy skies will be experienced with isolated light rains. In the rest of the country, partly cloudy to cloudy skies with isolated rain showers will prevail.
 
Gale warning is still raised in the northern seaboards of Northern Luzon. These include Batanes, Calayan, Babuyan, and the northern coasts of Cagayan and Ilocos Norte. Due to rough to very rough seas, fishing boats and other small seacraft are advised not to venture out while larger vessels are alerted against big waves.
 
Cooler Days Ahead
Temperatures continue to dip as the Northeast Monsoon, the cold and dry air from Siberia, intensifies. Yesterday, a chilling 16.6 degrees Celsius was recorded in Baguio City. In Tanay, Rizal 17 degrees Celsius was recorded, while the temperature dropped to 21 degrees Celsius in Infanta, Quezon. The surge of Amihan is expected in January and February.
 

 
At 10:00 AM today, a Low Pressure Area (LPA) was spotted at 450 kilometers east of Guiuan, Eastern Samar. Through its 11:00 AM Weather Advisory, PAGASA said that the LPA may develop into a tropical cyclone within the next 24 to 48 hours. According to PAGASA Weather Forecaster Robert Badrina, it may cross Eastern Visayas and Southern Luzon, and may bring rains in Metro Manila by Thursday until Saturday.
 
Apart from the LPA, the Intertropical Convergence Zone (ITCZ) is causing rains in Palawan and Mindanao, while the Northeast Monsoon dampens Northern and Central Luzon.
 
Today, the Zamboanga Peninsula and Palawan will experience cloudy skies with scattered rain showers and thunderstorms due to the ITCZ. The LPA will bring cloudy skies with scattered rain showers and thunderstorms in Eastern Visayas, Caraga, and Davao Region. For Metro Manila and the regions of Cagayan Valley, Ilocos, Cordillera and Central Luzon, partly cloudy to cloudy skies will prevail with isolated light rains due to the Amihan. The rest of the country will experience partly cloudy to cloudy skies with isolated rain showers or thunderstorms.
 



Light to moderate rains and isolated thunderstorms will be experienced in some parts of Southern Mindanao including regions of Zamboanga Peninsula, ARMM, and Soccsksargen. Residents are also alerted on the possible occurrence of flashfloods and landslides.



According to PAGASA Weather Forecaster Meno Mendoza, the monsoon break may last until this weekend, so residents in Luzon and Visayas will continue to experience slightly humid weather.



Despite the rainy weather in Southern Mindanao, generally fair weather conditions will prevail in Metro Manila and the rest of the country.

 
 
Potential LPA spotted
 
A possible weather disturbance was spotted in Mindanao today.
 
Based on an interview with PAGASA Weather Forecaster Meno Mendoza, the possible Low Pressure Area (LPA) is embedded along the Intertropical Convergence Zone or ITCZ.
 
“Ang nakapaloob dito sa ating Intertropical Convergence Zone ay mga maliliit na vortices ng Low Pressure Area at posible itong panggalingan nga ng sama ng panahon.” (Embedded within the Intertropical Convergence Zone are small vortices of Low Pressure Area, which may develop into a weather disturbance.)
 

 
Considered to be a breeding ground of weather disturbances, the ITCZ refers to the area where winds from the Northern and Southern Hemispheres meet and create interaction. Meanwhile, vertices are mass of whirling air that may develop into weather disturbances.
 

 
Today, Mindanao and Eastern Visayas will continue to experience light to moderate rains and thunderstorms this Thursday. In the rest of the country including Metro Manila, partly cloudy to cloudy skies will prevail with isolated rain showers or thunderstorms.