Typhoon BETTY (MAWAR) Advisory No. 09

48-hr Outlook: TY BETTY (MAWAR) is forecast to move north-northeast to northeastward with an increased forward speed from 11 to 17 kph through Friday morning (June 02). The system will be downgraded into a Severe Tropical Storm (STS) throughout the outlook period with forecast 1-min. sustained winds of 110 kph or less. The Tropical Storm-Force Winds over the  Batanes and Babuyan Island Group will start to diminish later today. 

The presence of this typhoon will continue to enhance the Southwest Monsoon (Habagat) and bring occasional rains with thunderstorms and gusty winds from 30 to 60 km/hr along the western sections of Visayas and MiMaRoPa including Batangas. It will therefore reach Cavite, NCR, Bataan, Zambales and some portions of Central Luzon beginning tomorrow, Thursday through Friday (June 02). Residents living in hazard-prone areas must take all necessary precautions against floods and landslides along the above-mentioned areas.

• Location of Center/Eye: Along the western part of the North Philippine Sea (near 21.3°N 125.1°E)
• Distance 1:  335 km east-northeast of Basco, Batanes
• Distance 2:  440 km northeast of Santa Ana, Cagayan
• Distance 3:  440 km east-northeast of Calayan Island, Cagayan

• None.

• Ilocos Region, Western CAR – Today until Tomorrow, Thursday (June 01).

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

• None.

• Coastal and Beachfront areas of Cagayan, Isabela, Ilocos Provinces, La Union, Batanes & Babuyan Island Group.

+Waves of 3 meters in height are expected in storm surge-prone areas, particularly in coastal areas where the Tropical Cyclone is headed. Kindly visit the PAGASA Storm Surge Updates  for more details.

• THURSDAY MORNING: Moving North to NNE slowly over the eastern part of the East Taiwan Sea…weakens to a Severe Tropical Storm (STS)…about 430 km ESE of Taipei, Taiwan [2AM June 01: 23.4°N 125.4°E @ 100-130 kph].  Forecast Confidence: HIGH
• FRIDAY MORNING: Already outside of the Philippine Area of Responsibility (PAR) as it accelerates towards the ENE, approaching Okinawa, Japan…about 580 km E of Taipei, Taiwan [2AM June 02: 25.7°N 127.3°E @ 95-120 kph].  Forecast Confidence:  HIGH
• SATURDAY MORNING: Weakens to a Tropical Storm (TS) as it rapidly accelerates ENE-ward across the Sea South of Japan…about 290 km E of Okinawa, Japan [2AM June 03: 26.7°N 130.7°E @ 85-100 kph].  Forecast Confidence:  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.

• 24-hr. Rain Accumulation (across its circulation):  25 to 500 mm [Light to Extreme]
• Minimum Central Pressure:  974 millibars (hPa)
• Size of Rain Circulation (in Diameter):  Large (1,075 km)
• Size of Wind Circulation (55-kph Wind Diameter):  Large (1,140 km)
• Area of Damaging Winds (100 kph or more wind gusts):  125 km outward from the center.