Wednesday, February 14, 2018

Tropical Depression SANBA (BASYANG) Update No. 15


Tropical Depression SANBA (BASYANG) Update No. 15


Issued at: 6:15 PM PhT (10:15 GMT) Wednesday, 14 February 2018
Next update: 1:00 AM PhT (17:00 GMT) Thursday, 15 February 2018
Current Status and Outlook

Tropical Depression SANBA (BASYANG) has maintained its intensity as it moves south-southwestward over the southern part of the Sulu Sea in the past 6 hours. It threatens to make landfall over the eastern coast of Northern Borneo by Thursday early morning (Feb 15). Its rainbands are currently affecting Central and Southern Palawan and Kalayaan Island Group.

24-hr Outlook: TD SANBA (BASYANG) is expected to maintain its intensity as it re-emerges over the West Philippine Sea after its landfall over Northern Borneo. It will move westward at a forward speed of 17 km/hr. 

The combined effects of TD SANBA (BASYANG), its associated Trough, and the enhanced Northeast Monsoon (Amihan) will bring scattered to widespread light to moderate to at times heavy rains and thunderstorms across Eastern Luzon, Palawan, and Kalayaan Island Group.

Where is SANBA (BASYANG)?As of 05:00 PM PhT today, February 14…0900 GMT. The center was located over the southern part of the Sulu Sea (near 6.7N 119.0E), about 343 km west of Lamitan City, Basilan or 468 km west of Zamboanga City, Zamboanga Del Sur.
How strong is it?

Maximum Sustained Winds (10-min avg): 45 kph near the center…Gustiness: 65 kph.

Past Movement (06 hrs)It was moving South-Southwest @ 15 kph, towards Northern Borneo.
Potential Philippine Landfall Area(s):: None.
What Philippine areas will be most affected?Moderate to Extreme Rains (30 to more than 100 mm expected):
>> Central and Southern Palawan and Kalayaan Island Group – Today through Thursday afternoon (Feb 15). 

Damaging Winds (gusts of more than 100 km/hr expected):
>> None.

Potential Storm Surge/Coastal Flooding Areas+:: None.
1-Day Forecast Outlook Summary**

THURSDAY AFTERNOON: Re-emerges over the West Philippine Sea or near the southwestern edge of the Philippine Area of Responsibility (PAR) after its landfall over Northern Borneo, maintains its intensity…about 442 km southwest of Puerto Princesa City, Palawan [2PM Feb 15: 7.2N 115.9E @ 45kph].  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/have 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 Info> 24 hr. Rain Accumulation (across its circulation): 25 to 200 mm [Light to Heavy]

> Minimum Central Pressure: 1002 millibars (hPa)

> Size of Circulation [Convective Cloud-Based, in diameter]: 590 km (Small)

> Area of Damaging Winds (100 kph or more wind gusts): None.

Additional DistancesTime/Date: 05:00 PM PhT Wed February 14, 2018
Location of Center/Eye: Near 6.7º N Lat 119.0º E Lon
Distance 1: 510 km SW of Sipalay City, Negros Occidental
Distance 2: 523 km SW of Bayawan City, Negros Oriental
Distance 3: 536 km SW of Tanjay City, Negros Oriental
Distance 4: 551 km WSW of Ozamis City, Misamis Occidental
Distance 5: 904 km SSW of Metro Manila

Information based on data collected by WeatherPhilippines Foundation, Inc. shall not be taken as official data. Weather information broadcasted and distributed by PAGASA remains as official data. WeatherPhilippines shall not be responsible for the private use and reliance of its weather information.

Issued by: John Christian B. Lequiron for WeatherPhilippines


Posted by: " (Michael V. Padua)" <>
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