'Bagyong Isang' PAGASA weather update August 20, 2021

MANILA, Philippines – 'Bagyong Isang' maintains its strength over the Philippine Sea east of extreme Northern Luzon, state weather bureau PAGASA announced in its 5:00 am update on Friday, August 20, 2021.

As of 4:00 am today, the center of Tropical Depression 'Isang' was estimated based on all available data at 1,110 km East of Extreme Northern Luzon.

Satellite image of Tropical Storm 'Isang'
Satellite image of Tropical Depression 'Isang' as of 8:30 am, August 20, 2021. via DOST-PAGASA

'Bagyong Isang' has maximum sustained winds of 45 km/h near the center, gustiness of up to 55 km/h, and central pressure of 1006 hPa. It is moving West northwestward at 20 km/h.


No Tropical Cyclone Wind Signal is currently in effect.


On the forecast track, 'Isang' will remain far from the Philippine landmass throughout the forecast period.

'Bagyong Isang' track

The tropical depression is forecast to move northwestward until tomorrow morning, then turn north northwestward tomorrow afternoon.

'Isang' is likely to exit the Philippine Area of Responsibility (PAR) tomorrow evening or Sunday morning.

It is forecast to slightly intensify tomorrow but will remain a tropical depression through the forecast period.

'Bagyong Isang' intensity


Heavy Rainfall

'Isang' is unlikely to directly affect the weather condition and bring heavy rainfall in the country throughout the forecast period.

Severe Winds

The latest forecast scenario for 'Isang' shows that the hoisting of Tropical Cyclone Wind Signals over any land area in the country remains unlikely. Moreover, its passage is unlikely to enhance the Southwest Monsoon and bring gusty conditions to the country.


In the next 24 hours, the tropical depression remains less likely to cause sea conditions within the coastal waters of the country which may be risky to any type of sea vessel.


'Isang', the ninth tropical cyclone for 2021, entered the PAR at 10 am on Thursday, August 19.

On average, there are 20 tropical cyclones that could form or enter the PAR each year. Only half of those are projected to make landfall.

The weather agency declared the onset of the rainy season on Friday, June 5.

— The Summit Express

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