Typhoon BISING (SURIGAE) Advisory No. 15

The typhoon’s westernmost rainbands are no longer affecting any parts of the Philippines.

24-hr Outlook: TY BISING (SURIGAE) is forecast to move east-northeastward at a speed of 17 km/hr across the northern part of the North Philippine Sea. This cyclone is expected to weaken rapidly, will be downgraded into a Severe Tropical Storm (STS) within the next 12 to 24 hours.

• Location of Center/Eye: Along the northwestern portion of the Central Philippine Sea (near 22.1°N 127.3°E)
• Distance 1: 578 km east-northeast of Basco, Batanes
• Distance 2: 640 km east of Taitung, Taiwan
• Distance 3: 671 km northeast of Santa Ana, Cagayan

• None.

• None.

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

• None. 

• None.

+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 headed. Kindly visit the PAGASA Storm Surge Updates  for more details.

• SATURDAY EARLY MORNING: Weakens rapidly to a Severe Tropical Storm (STS) as it moves ENE-ward across the northern portion of the North Philippine Sea, southwest of Okinawa, Japan…about 924 km E of Taipei, Taiwan [2AM Apr 24: 23.4°N 130.5°E @ 100 kph].  Confidence Level: MEDIUM
• SUNDAY EARLY MORNING: Maintains its weakening trend, just a Tropical Storm (TS) as it rapidly moves ESE to Eastward across the easternmost portion of the North Philippine Sea. Just about to exit the NE border of PAR…about 1,270 km E of Basco, Batanes [2AM Apr 25: 21.3°N 134.2°E @ 75 kph].  Confidence Level: MEDIUM
• MONDAY EARLY MORNING: Begins Extratropical Transition while outside of PAR, as it speeds up ENE-ward across the Western Pacific Ocean, NNE of the Northern Marianas…about 2,052 km E of Basco, Batanes [2AM Apr 26: 23.0°N 141.7°E @ 75 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.

• 24-hr. Rain Accumulation (across its circulation): 25 to 520 mm [Light to Extreme]
• Minimum Central Pressure: 965 millibars (hPa)
• Size of Rain Circulation (in Diameter): Medium (670 km)
• Size of Wind Circulation (55-kph Wind Diameter): Medium (660 km)
• Area of Damaging Winds (100 kph or more wind gusts): 120 km from the center.