TYPHOON BISING (SURIGAE) ADVISORY NO. 07

Issued at: 7:00 AM PhT (23:00 GMT) Monday, 19 April 2021
Next update: 7:00 PM PhT (11:00 GMT) Monday, 19 April 2021
Current Status & Outlook BISING (SURIGAE) no longer a Super Typhoon (STY) after it weakened further overnight…now moving slowly north-northwestward across the Philippine Sea, east-northeast of Bicol Region.

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

24-hr Outlook: TY BISING (SURIGAE) is forecast to continue moving north-northwestward slowly at a speed of 07 km/hr and will remain over the mid-western part of the Central Philippine Sea. This cyclone will continue to weaken, becoming a Category 3 TY within the next 12 to 24 hours.

Where is BISING (SURIGAE)? As of 5:00 AM PhT today, April 19…2100 GMT:

  • Location of Center/Eye: Along the western portion of the Central Philippine Sea (near 14.1°N 126.5°E)
  • Distance 1: 242 km east-northeast of Bato, Catanduanes
  • Distance 2: 361 km east-northeast of Naga City, Camarines Sur
  • Distance 3: 383 km east of Daet, Camarines Norte
How strong is it? Maximum Sustained Winds (1-min avg): 220 kph near the center…Gustiness: 270 kph.
Past Movement (06 hrs) North-Northwest @ 07 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):

  • Bicol Region & Samar Provinces – Today.

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

  • None. 
Potential Storm Surge/Coastal Flooding Areas+
  • Coastal Areas of Eastern Visayas & Bicol Region – Today.

+Waves of 3 to 5 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 EARLY MORNING: Weakens to a Category 3 Typhoon (TY) as it moves slowly NNW-ward across the mid-western portion of the Central Philippine Sea, NE of Catanduanes…about 260 km ENE of Pandan, Catanduanes [2AM Apr 20: 15.3°N 126.2°E @ 205 kph].  Confidence Level: HIGH
  • WEDNESDAY EARLY MORNING: Weakens further while continuing moving NNW-ward across the NW portion of the Central Philippine Sea farther away from Catanduanes…about 308 km E of Palanan, Isabela [2AM Apr 21: 16.9°N 125.3°E @ 150 kph].  Confidence Level: HIGH
  • THURSDAY EARLY MORNING: Maintains its decaying trend, just a Category 2 TY while accelerating slightly NNW-ward across the North Philippine Sea, east of Northern Cagayan…about 238 km E of Santa Ana, Cagayan [2AM Apr 22: 18.7°N 124.4°E @ 175 kph].  Confidence Level: MEDIUM

**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 900 mm [Light to Extreme]
  • Minimum Central Pressure: 900 millibars (hPa)
  • Size of Rain Circulation (in Diameter): Medium (705 km)
  • Size of Wind Circulation (55-kph Wind Diameter): Medium (880 km)
  • Area of Damaging Winds (100 kph or more wind gusts): 155 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)

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Typhoon2000 (T2K) Integrated Multi-Agency Tracks

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

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PAGASA TROPICAL CYCLONE WIND SIGNAL



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

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