PAGASA Weather Update January 21, 2023: Shear Line Affects the Eastern Section of Southern, Northeast Monsoon Continues to Affect the Rest of Luzon, and LPA Outside the PAR

MANILA, Philippines – The Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) releases the latest weather update.

Image Source: PAGASA

Forecast Weather Conditions

The majority of the country continues to experience rainy weather throughout the week. This event was due to the Northeast Monsoon and the Shear Line’s continued effect. Another Low-Pressure Area (LPA) is set to enter the Philippine Area of Responsibility (PAR), and the trough of LPA currently affects several areas in the country today. PAGASA also states that they are not ruling out the possibility of the LPA transforming into a Tropical Cyclone.

Image Source: PAGASA

Caraga and Davao Region are the first victims of the said LPA trough, and these areas will experience “cloudy skies with scattered rainshowers and thunderstorms.” Residents here should prepare for “possible flash floods or landslides due to moderate to, at times, heavy rains.”

The Bicol Region will also have “cloudy skies with scattered rainshowers and thunderstorms,” bringing “possible flooding or landslides due to moderate to, at times, heavy rains.” This weather condition was due to the Shear Line.

The Northeast Monsoon will affect the rest of Luzon and bring varying effects on the areas. Cagayan Valley, Cordillera Administrative Region, Aurora, Rizal, Laguna, Quezon, Mindoro Provinces, Marinduque, and Romblon will have “cloudy skies and rains,” which may cause “possible flash floods or landslides due to moderate to, at times heavy rains.” On the other hand, Metro Manila, Ilocos Region, and the rest of Central Luzon and CALABARZON will only experience “partly cloudy to at times cloudy skies with light rains,” bringing “no significant impact” on the land areas.

Localized thunderstorms will affect the rest of the country, causing the remaining areas to experience “partly cloudy to cloudy skies with isolated rainshowers or thunderstorms.” These weather conditions may cause “possible flash floods or landslides during severe thunderstorms.

Wind and Coastal Water Conditions

Image Source: PAGASA

Northern Luzon will experience moderate to strong winds moving from the northeast to the east. The condition of its coastal water will be moderate to rough (2.5 to 4.0 meters).

The rest of Luzon, Visayas, and the eastern section of Mindanao can also expect moderate to strong winds, moving to the northeast, with moderate to rough coastal water conditions (1.2 to 4.0 meters).

The rest of Mindanao will have light to moderate wind conditions, and their direction will be from the northeast. These areas can expect slight to moderate coastal water conditions (0.6 to 2.1 meters).

Temperature and Relative Humidity

image Source: PAGASA

Here are the reported temperature and relative humidity in the Philippines as of January 21, 2023:

  • Max Temperature will be 30.6°C at 1:50 PM
  • Minimum Temperature will be 23.1°C at 6:00 AM
  • Max Relative Humidity is 88% at 6:00 AM
  • Minimum Relative Humidity is 56% at 1:50 PM

Philippine Cities Weather Forecast

Here are the reported weather conditions in the Philippine Cities as of January 21, 2023:

Courtesy of PAGASA

Contact PAGASA

Should you have weather-related concerns, you may also reach PAGASA at the following contact details:

  • Facebook: @PAGASA.DOST.GOV.PH
  • Twitter: @dost_pagasa
  • Email: [email protected]
  • Contact Number: (02) 8284-0800


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