Severe Tropical Storm BETTY (MAWAR) Advisory No. 11

48-hr Outlook: STS BETTY (MAWAR) is forecast to turn northeastward with an increased forward speed of 20 to 30 kph through Saturday morning (June 03). It will pass very close to Miyakojima on or before noon today, and over or very close to Okinawa by early Saturday morning.  The system will continue losing strength, with 1-min. sustained winds decreasing to 95 kph within the next 2 days.

The presence of this storm will still continue to enhance the Southwest Monsoon (Habagat) and bring on-and-off rain showers with isolated to scattered thunderstorms and gusty winds of 30 to 60 km/hr along the western sections of Visayas and MiMaRoPa including Batangas. It will therefore reach some portions of Western Luzon beginning today 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 Coastal Waters of Miyakojima (near 23.9°N 125.7°E)
• Distance 1:  440 km east-southeast of Taipei, Taiwan
• Distance 2:  540 km northeast of Basco, Batanes
• Distance 3:  345 km southwest of Okinawa, Japan

• None

• None 

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

• None

• None

+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.

• FRIDAY MORNING: In the vicinity of Okinawa, Japan, starts to turn towards the ENE as it weakens further…about 640 km ENE of Taipei, Taiwan [2AM June 02: 26.7°N 127.7°E @ 95-120 kph].  Forecast Confidence: HIGH
• SATURDAY MORNING: Becoming an Extratropical Cyclone while zooming fast towards the ENE, across the sea south of Japan. Weakens to a Tropical Storm (TS)…about 600 km ENE of Okinawa, Japan [2AM June 03: 28.4°N 133.4°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 250 mm [Light to Heavy]
• Minimum Central Pressure:  975 millibars (hPa)
• Size of Rain Circulation (in Diameter):  Large (1,375 km)
• Size of Wind Circulation (55-kph Wind Diameter):  Large (1,240 km)
• Area of Damaging Winds (100 kph or more wind gusts):  145 km outward from the center.