Super Typhoon BISING (SURIGAE) Advisory No. 04

24-hr Outlook: STY BISING (SURIGAE) is forecast to resume moving west-northwestward across the southwestern portion of the Central Philippine Sea at a decreased forward speed of 16 km/hr. This cyclone is forecast to maintain its Super Typhoon strength for the next 12 to 24 hours due to favorable oceanic and atmospheric conditions.

• Location of Center/Eye: Along the southern portion of the Central Philippine Sea (near 11.7°N 129.7°E)
• Distance 1: 465 km east of Borongan City, Eastern Samar
• Distance 2: 632 km east-southeast of Virac, Catanduanes
• Distance 3: 737 km east-southeast of Naga City, Camarines Sur

• None

• Bicol Region & Eastern Visayas – beginning tomorrow, Sunday (Apr 18).

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

• None

• Coastal Areas of Eastern Visayas & Bicol Region.

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

• SUNDAY AFTERNOON: No longer a Super Typhoon (STY) as it resumes moving WNW-ward across the southwestern portion of the Central Philippine Sea…about 353 km E of Legazpi City, Albay [2PM Apr 18: 13.3°N 127.0°E @ 240 kph].  Confidence Level: HIGH
• MONDAY AFTERNOON: Weakens further and slows down while veering to the NNW…passing just to the east-northeast of Catanduanes…about 245 km ENE of Pandan, Catanduanes [2PM Apr 19: 14.8°N 126.3°E @ 220 kph].  Confidence Level: MEDIUM
• TUESDAY AFTERNOON: Moving slowly NNW to NW-ward across the northwestern portion of the Central Philippine Sea…about 289 km NE of Pandan, Catanduanes  [2PM Apr 20: 16.1°N 125.8°E @ 205 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 550 mm [Light to Extreme]
• Minimum Central Pressure: 925 millibars (hPa)
• Size of Rain Circulation (in Diameter): Large (1,060 km)
• Size of Wind Circulation (55-kph Wind Diameter): Medium (780 km)
• Area of Damaging Winds (100 kph or more wind gusts): 165 km from the center