Issued at: 7:00 PM PhT (11:00 GMT) Monday, 19 April 2021
Next update: 7:00 AM PhT (23:00 GMT) Tuesday, 20 April 2021
Current Status & Outlook Typhoon BISING (SURIGAE) has regained a little bit of strength while moving very slowly northward across the Philippine Sea, east-northeast of Bicol Region.

This typhoon will continue to bring occasional rains with severe thunderstorms and gusty winds across Samar and Bicol Provinces including Bondoc Peninsula (Quezon) tonight & tomorrow.  Meanwhile, its Trough will bring cloudy skies with scattered rain showers and thunderstorms across the Visayas, Northern Sulu Archipelago, & Northern Palawan.

24-hr Outlook: TY BISING (SURIGAE) is forecast to resume moving north-northwestward slowly at a speed of 07 km/hr across the northwestern part of the Central Philippine Sea. This cyclone is expected to weaken into a Category 3 TY within the next 12 to 24 hours.

Where is BISING (SURIGAE)? As of 5:00 PM PhT today, April 19…0900 GMT:

  • Location of Center/Eye: Along the western portion of the Central Philippine Sea (near 14.8°N 126.3°E)
  • Distance 1: 245 km east-northeast of Pandan, Catanduanes
  • Distance 2: 286 km east-northeast of Caramoan, Camarines Sur
  • Distance 3: 360 km east-northeast of Naga City, Camarines Sur
How strong is it? Maximum Sustained Winds (1-min avg): 230 kph near the center…Gustiness: 280 kph.
Past Movement (06 hrs) North @ 08 kph, across the Philippine Sea
Potential Philippine Landfall Area(s)
  • None
What Philippine areas will be directly affected? Heavy to Extreme Rainfall (50 mm to >100 mm expected for 24 hrs):

  • Catanduanes, Partido District (CamSur), Eastern Coastal Areas of Albay, Portions of Northern Samar – Tonight & Tomorrow.

Damaging Winds (gusts of more than 100 km/hr expected):

  • None. 
Potential Storm Surge/Coastal Flooding Areas+
  • Coastal Areas of Aurora, Northern Samar & Bicol Region – Tonight & Tomorrow.

+Waves of 2 to 6 meters in height is expected in storm surge-prone areas, particularly in coastal areas on where the Tropical Cyclone is headedKindly visit the PAGASA Storm Surge Updates  for more details.

3-Day Forecast Outlook Summary**
  • TUESDAY AFTERNOON: Weakens to a Category 3 Typhoon (TY) as it moves very slowly NNW-ward across the northwestern portion of the Central Philippine Sea, NE of Catanduanes…about 296 km NE of Pandan, Catanduanes [2PM Apr 20: 16.1°N 125.9°E @ 205 kph].  Confidence Level: HIGH
  • WEDNESDAY AFTERNOON: Weakens further while accelerating slightly NNW-ward across the southwestern portion of the North Philippine Sea, just to the east of Northern Cagayan…about 272 km E of Santa Ana, Cagayan [2PM Apr 21: 18.1°N 124.7°E @ 185 kph].  Confidence Level: HIGH
  • THURSDAY AFTERNOON: Maintains its decaying trend, just a Category 2 TY as it starts to recurve towards the North and NNE across the western portion of the North Philippine Sea, east of Batanes Group…about 281 km ESE of Basco, Batanes [2PM Apr 22: 19.8°N 124.6°E @ 165 kph].  Confidence Level: HIGH

**Important Note: Please be reminded that the Forecast Outlook changes every 6 hours, and the Day 2 and 3 Forecast Track have an average error of 100 and 250 km respectively… while the wind speed forecast error, averages 35 km/hr per day. Therefore, a turn to the left or right of its future track and changes in its wind speed must be anticipated from time to time.

Other Storm’s Meteorological Information
  • 24-hr. Rain Accumulation (across its circulation): 25 to 850 mm [Light to Extreme]
  • Minimum Central Pressure: 905 millibars (hPa)
  • Size of Rain Circulation (in Diameter): Medium (720 km)
  • Size of Wind Circulation (55-kph Wind Diameter): Medium (880 km)
  • Area of Damaging Winds (100 kph or more wind gusts): 185 km from the center
Information based on data collected by Typhoon2000 (T2k) shall not be taken as official data. Weather information broadcasted and distributed by PAGASA remains as official data. Typhoon2000 (T2k) shall not be responsible for the private use and reliance of its weather information.

Issued by: David Michael V. Padua for Typhoon2000 (T2K)


Typhoon2000 (T2K) Integrated Multi-Agency Tracks

For more info: http://www.typhoon2000.ph/multi/?name=SURIGAE



Image/Screenshot Source: DOST-PAGASA (https://pubfiles.pagasa.dost.gov.ph/tamss/weather/signals_bising.png)


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