Published On: Thu, Aug 8th, 2019

Rain to persist from monsoon enhanced by Typhoon Hanna

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PAGASA advises residents of Luzon and Western Visayas to remain on alert for possible flash floods and landslides on Thursday, August 8

Published 12:20 PM, August 08, 2019

Updated 12:20 PM, August 08, 2019

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Satellite image of Typhoon Hanna (Lekima) in the center, Typhoon Krosa on the right, and a low pressure area on the left as of August 8, 2019, 11 am. Image from NOAA

Satellite image of Typhoon Hanna (Lekima) in the center, Typhoon Krosa on the right, and a low pressure area on the left as of August 8, 2019, 11 am. Image from NOAA

MANILA, Philippines – Typhoon Hanna (Lekima) strengthened again on Thursday morning, August 8, a trend it has maintained for two days now. It is also still enhancing the southwest monsoon or hanging habagat, which is dumping more rain.

In a briefing past 11 am on Thursday, the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) said Hanna now has maximum winds of 185 kilometers per hour (km/h) from the previous 175 km/h and gustiness of up to 230 km/h from the previous 215 km/h.

The typhoon is already 490 kilometers northeast of Basco, Batanes, still moving northwest at 15 km/h. It is now threatening the southern part of Japan’s Ryukyu Islands.

Hanna will not make landfall in the Philippines. Signal No. 1, however, remains raised in:

  • Batanes
  • Babuyan Group of Islands

PAGASA warned that Hanna’s outer rainbands are bringing light to heavy rain and gusty winds to Batanes and the Babuyan Group of Islands. These will persist until Friday, August 9.

The enhanced southwest monsoon is also triggering more rain on Thursday and Friday. Below is the latest list of affected areas.

Thursday, August 8

  • Moderate to heavy monsoon rain
    • Metro Manila
    • Occidental Mindoro
    • Oriental Mindoro
    • northern part of Palawan including Calamian and Cuyo islands
    • Zambales
    • Bataan
    • Bulacan
    • Rizal
    • Cavite
    • Antique
    • Iloilo
    • Guimaras
  • Light to heavy monsoon rain
    • rest of Mimaropa
    • rest of Central Luzon
    • rest of Calabarzon
    • Ilocos Region
    • Cordillera Administrative Region
    • rest of Western Visayas

Friday, August 9

  • Moderate to heavy monsoon rain
    • Ilocos Region
    • Cordillera Administrative Region
    • Zambales
    • Bataan
    • Occidental Mindoro
  • Light to heavy monsoon rain
    • Metro Manila
    • Calabarzon
    • rest of Central Luzon
    • rest of Mimaropa

PAGASA advised residents to remain on alert for possible flash floods and landslides. Gusty conditions will also continue in the western sections of Luzon and the Visayas due to the enhanced southwest monsoon. (READ: FAST FACTS: Tropical cyclones, rainfall advisories)

Some areas have suspended classes for Thursday. (READ: #WalangPasok: Class suspensions, Thursday, August 8, 2019)

Travel also remains risky in the seaboards of areas under Signal No. 1, seaboards of Luzon and the Visayas, and northern and eastern seaboards of Mindanao.

Based on Hanna’s latest forecast track, it is expected to leave the Philippine Area of Responsibility (PAR) on Friday morning.

Forecast track of Typhoon Hanna (Lekima) as of August 8, 2019, 11 am. Image from PAGASA

Forecast track of Typhoon Hanna (Lekima) as of August 8, 2019, 11 am. Image from PAGASA

Hanna is the Philippines’ 8th tropical cyclone for 2019, and the 1st for the month of August. It is also the country’s 1st tropical cyclone to reach typhoon status in 2019. (READ: LIST: PAGASA’s names for tropical cyclones in 2019)

Aside from Hanna, PAGASA continues to monitor two other weather systems:

  • low pressure area (LPA) inside PAR
  • Typhoon Krosa outside PAR

The LPA inside PAR is now 180 kilometers west northwest of Dagupan City, Pangasinan. PAGASA said it is expected to dissipate within 24 to 48 hours.

Meanwhile, Typhoon Krosa strengthened further. It now has maximum winds of 130 km/h from the previous 120 km/h and gustiness of up to 160 km/h from the previous 150 km/h.

Krosa is already 1,930 kilometers east of extreme Northern Luzon, slowly moving northwest. It is not expected to enter PAR.

The country gets an average of 20 tropical cyclones annually, but since 2019 is an El Niño year, only 14 to 18 tropical cyclones are expected.

Below is the estimated number of tropical cyclones from August to December:

  • August – 2 to 4
  • September – 2 to 4
  • October – 2 or 3
  • November – 1 or 2
  • December – 0 or 1

PAGASA declared the start of the rainy season last June 14. – Rappler.com

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