Philippine tropical cyclones

LPA develops into Tropical Depression Caloy, enhances southwest monsoon

Acor Arceo
LPA develops into Tropical Depression Caloy, enhances southwest monsoon

CALOY. Satellite image of Tropical Depression Caloy as of June 28, 2022, 11:30 pm.

PAGASA

Tropical Depression Caloy is expected to be out of the Philippine Area of Responsibility by Wednesday, June 29. But there will be rain from the southwest monsoon, which is being enhanced by Caloy.

MANILA, Philippines – The low pressure area (LPA) over the West Philippine Sea developed into a tropical depression at 8 pm on Tuesday, June 28, while moving away from the country.

It is the Philippines’ third tropical cyclone for 2022 and was given the local name Caloy.

In a briefing shortly before 1 am on Wednesday, June 29, the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) said Caloy was last spotted 385 kilometers west of Iba, Zambales, slowly moving west northwest.

The tropical depression has maximum sustained winds of 45 kilometers per hour and gustiness of up to 55 km/h.

Since it is already moving away, Caloy is expected to be out of the Philippine Area of Responsibility (PAR) by Wednesday.

But the tropical depression is enhancing the southwest monsoon or hanging habagat, which will bring rain to parts of Luzon and the Visayas.

PAGASA warned that the enhanced southwest monsoon will affect the following areas on Wednesday:

Moderate to heavy rain, with at times intense rain
  • Palawan
  • Oriental Mindoro
  • Occidental Mindoro
  • Zambales
  • Bataan
  • Cavite
  • Batangas
  • Laguna
  • Aurora
  • Quezon
Light to moderate rain, with at times heavy rain
  • Metro Manila
  • rest of Mimaropa
  • Rizal
  • Tarlac
  • Pampanga
  • Ilocos Region
  • Bicol
  • Western Visayas

Scattered floods and landslides are possible.

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There are no tropical cyclone wind signals in place due to Caloy, but occasionally gusty conditions are seen in extreme Northern Luzon as well as the western parts of Luzon and the Visayas due to the enhanced southwest monsoon.

The seaboards of Northern Luzon and the western seaboards of Central Luzon and Southern Luzon will also have moderate to rough seas on Wednesday. Waves are expected to be 1.2 to 3.1 meters high, making conditions risky for small vessels.

After Caloy leaves PAR on Wednesday, it is projected to head north northwest over the West Philippine Sea until Thursday, June 30, then turn west northwest on Friday, July 1, toward China. Also on Friday, it may intensify into a tropical storm.

PAGASA Weather Specialist Grace Castañeda noted that Caloy can still enhance the southwest monsoon even after it exits PAR, which means the rain may persist beyond Wednesday. The inauguration of president-elect Ferdinand Marcos Jr. at the National Museum in Manila is set for Thursday. – Rappler.com

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Acor Arceo

Acor Arceo is the head of copy and editorial standards at Rappler. Trained in both online and TV newsrooms, Acor ensures consistency in editorial standards across all sections and also supervises Rappler’s coverage of disasters.