TYPHOON BISING (SURIGAE) ADVISORY NO. 03

Issued at: 7:00 AM PhT (23:00 GMT) Saturday, 17 April 2021
Next update: 7:00 PM PhT (11:00 GMT) Saturday, 17 April 2021
Current Status & Outlook BISING (SURIGAE) has rapidly intensified into a Category 4 Typhoon with 1-min. sustained winds of 215 km/hr, as it moves northwestward across the Philippine Sea. This typhoon is expected to affect Eastern Visayas and Bicol Region beginning tomorrow, Sunday through Tuesday (Apr 18-20).  

24-hr Outlook: TY BISING (SURIGAE) is forecast to resume moving west-northwestward across the southwestern portion of the Central Philippine Sea at a forward speed of 19 km/hr. This cyclone is forecast to still intensify, and the possibility of becoming a  Super Typhoon remains due to favorable oceanic and atmospheric conditions.

Where is BISING (SURIGAE)? As of 5:00 AM PhT today, April 17…2100 GMT:

  • Location of Center/Eye: Along the southeasternmost portion of the Central Philippine Sea (near 10.4°N 131.8°E)
  • Distance 1: 692 km east of Surigao City, Surigao Del Norte
  • Distance 2: 668 km east of Guiuan, Eastern Samar
  • Distance 3: 899 km east-southeast of Virac, Catanduanes
How strong is it? Maximum Sustained Winds (1-min avg): 215 kph near the center…Gustiness: 260 kph.
Past Movement (06 hrs) Northwest @ 17 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 & Eastern Visayas – beginning tomorrow, Sunday (Apr 18).

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

  • None
Potential Storm Surge/Coastal Flooding Areas+
  • None

+Waves of 3 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**
  • SUNDAY EARLY MORNING: Nearing Super Typhoon strength (Category 4) as it resumes moving WNW-ward across the southwestern portion of the Central Philippine Sea…about 339 km ENE of Guiuan, Eastern Samar [2AM Apr 18: 12.2°N 128.6°E @ 230 kph].  Confidence Level: HIGH
  • MONDAY EARLY MORNING: Weakens slightly and slows down while veering slightly to the NNW…passing just to the east of Catanduanes…about 203 km E of Bato, Catanduanes [2AM Apr 19: 13.6°N 126.2°E @ 220 kph].  Confidence Level: HIGH
  • TUESDAY EARLY MORNING: Moving slowly NNW to NW near to the ENE of Catanduanes or over the western portion of the Central Philippine Sea…about 171 km ENE of Pandan, Catanduanes  [2AM Apr 20: 14.7°N 125.6°E @ 215 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 400 mm [Light to Extreme]
  • Minimum Central Pressure: 950 millibars (hPa)
  • Size of Rain Circulation (in Diameter): Average (740 km)
  • Size of Wind Circulation (55-kph Wind Diameter): Large (1,080 km)
  • Area of Damaging Winds (100 kph or more wind gusts): 125 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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