TYPHOON BISING (SURIGAE) ADVISORY NO. 14

Issued at: 7:00 PM PhT (11:00 GMT) Thursday, 22 April 2021
Next update: 7:00 AM PhT (23:00 GMT) Friday, 23 April 2021
Current Status & Outlook Typhoon BISING (SURIGAE) rapidly weakens as it begins to accelerate northeastward across the North Philippine Sea, well to the east of the Bashi Channel. 

The typhoon’s westernmost rainbands will continue to bring overcast skies with passing “on-&-off” rain showers, severe thunderstorms and gusty winds (with the help of the NE Windflow) across Batanes & Babuyan Island Group.

24-hr Outlook: TY BISING (SURIGAE) is forecast to accelerate further northeastward at a speed of 20 km/hr across the northern part of the North Philippine Sea. This cyclone is expected to continue weakening rapidly within the next 12 to 24 hours.

Where is BISING (SURIGAE)? As of 5:00 PM PhT today, April 22…0900 GMT:

  • Location of Center/Eye: Along the southwesternmost portion of the Central Philippine Sea (near 20.5°N 125.9°E)
  • Distance 1: 406 km east of Basco, Batanes
  • Distance 2: 452 km east-northeast of Santa Ana, Cagayan
  • Distance 3: 543 km northeast of Tuguegarao City, Cagayan
How strong is it? Maximum Sustained Winds (1-min avg): 165 kph near the center…Gustiness: 205 kph.
Past Movement (06 hrs) Northeast @ 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):

  • None.

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

  • None. 
Potential Storm Surge/Coastal Flooding Areas+
  • Coastal Areas of Batanes & Cagayan – Today.

+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**
  • FRIDAY AFTERNOON: Weakens rapidly to a Category 1 (TY) as it accelerates NE-ward across the northern portion of the North Philippine Sea, almost south of Okinawa, Japan…about 770 km ENE of Basco, Batanes [2PM Apr 23: 23.1°N 128.9°E @ 130 kph].  Confidence Level: HIGH
  • SATURDAY AFTERNOON: Losing strength, just a Tropical Storm (TS) as moves ESE-ward across the eastern portion of the North Philippine Sea…about 1,040 km E of Basco, Batanes [2PM Apr 24: 22.0°N 131.9°E @ 85 kph].  Confidence Level: MEDIUM
  • SUNDAY AFTERNOON: Maintains its strength as it begins extratropical transition outside of the Philippine Area of Responsibility (PAR)…about 1,612 km E of Basco, Batanes [2PM Apr 25: 21.5°N 137.5°E @ 85 kph].  Confidence Level: LOW

**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 450 mm [Light to Extreme]
  • Minimum Central Pressure: 950 millibars (hPa)
  • Size of Rain Circulation (in Diameter): Medium (710 km)
  • Size of Wind Circulation (55-kph Wind Diameter): Medium (780 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

None…already lowered.

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

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