This weather updates section provides "easy-to-understand" tropical cyclone information over the South China Sea and Northwest Pacific Basin (from Malay Peninsula - 100° E up to the International Date Line - 180°). This website is updated every 6 hours (12pm, 6pm, and 6am Philippine Time ~ GMT+8) during times of tropical cyclone activity except 12am Philippine Time (to be included if Tropical Cyclone will pass over the Philippine Islands or close to Bicol Region).

The tropical cyclone information available on this site are taken from different online meteorological agencies from around the world-wide web namely: WeatherPhilippines Foundation Inc., Philippine Atmospheric Geophysical & Astronomical Services Administration (PAGASA), U.S. Navy's Joint Typhoon Warning Center (JTWC) based in Pearl Harbor, Hawaii, United Nations' Regional Specialized Meteorological Centre (RSMC) Tokyo-Typhoon Centre (Japan Meteorological Agency), & Hong Kong Observatory.

Saturday, September 15, 2018

Typhoon MANGKHUT (OMPONG) Update No. 18

 

Typhoon MANGKHUT (OMPONG) Update No. 18

TYPHOON MANGKHUT (OMPONG) UPDATE NO. 18

Issued at: 7:00 PM PhT (11:00 GMT) Saturday, 15 September 2018
Next update: 7:00 AM PhT (23:00 GMT) Sunday, 16 September 2018
Current Status and Outlook

Typhoon MANGKHUT (OMPONG) continues losing steam but remains a large tropical cyclone with rainbands extending half a thousand kilometers from the eye.  This system is about to leave the northwestern border of the Philippine Area of Responsibility (PAR), however, rains with gusty winds will prevail across Northern and Central Luzon tonight.

Meanwhile, at 3:00 PM today, the WPF Automated Weather Station (AWS) based in Laoag International Airport (CebuPac) reported wind gust of 156 km/hr blowing from the SSE.

24-hr Outlook: TY MANGKHUT (OMPONG) is expected to accelerate west-northwestward across the South China Sea with a forward speed of 29 km/hr. A decrease in its strength is likely to occur, as Mangkhut approaches Southern China. It will be approaching the shores of Hong Kong by tomorrow, Sunday afternoon (Sept. 16).

Where is MANGKHUT (OMPONG)?As of 5:00 PM PhT today, September 15…0900 GMT. The center was located over the western part of the Balintang Channel (near 19.2°N Lat 118.9°E ), about 210 km west-northwest of Laoag  City, Ilocos Norte or 240 km northwest of Vigan  City, Ilocos Sur.
How strong is it?

Maximum Sustained Winds (10-min avg): 180 kph near the center…Gustiness: 225 kph.

Past Movement (06 hrs)West-Northwest @ 25 kph, towards Southern China.
Potential Philippine Landfall Area(s)::  None.
What Philippine areas will be directly affected?Moderate to Extreme Rains (30 to more than 100 mm expected):
>>Northern & Central Luzon – Today. 

Damaging Winds (gusts of more than 100 km/hr expected):
>> Northern & Central Luzon – Today.

Potential Storm Surge/Coastal Flooding Areas:: Whole Coastal Areas of Western Luzon – Today.
1-Day Forecast Outlook Summary**

SUNDAY EARLY MORNING: Maintains its strength as it traverses the South China Sea on a WNW track…about 394 km southeast of Hong Kong, China  [2AM Sept 16: 20.1°N 117.0°E @ 180 kph].  Confidence Level: MEDIUM.

SUNDAY AFTERNOON: Approaching the coast of Guangdong Province as it prepares to make a second landfall but with a decreased wind speed…about 88 km south-southwest of Hong Kong, China [2PM Sept 16: 21.7°N 113.7°E @ 165 kph].  Confidence Level: 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/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 300 mm [Light to Heavy]

> Minimum Central Pressure: 944 millibars (hPa)

> Size of Circulation [Convective Cloud-Based, in diameter]: 950 km (Medium)

> Area of Damaging Winds (100 kph or more wind gusts): 255 km from the center

Additional InformationTime/Date: 5:00 PM PhT Sat September 15, 2018
Location of Center/Eye: Near 19.2°N Lat 118.9°E 
Distance 1: 304 km WNW of Aparri, Cagayan
Distance 2: 327 km NNW of San Fernando  City, La Union
Distance 3: 347 km WNW of Tuguegarao  City, Cagayan
Distance 4: 352 km WNW of Santa Ana, Cagayan
Distance 5: 563 km NNW of Metro Manila
24 hr. Forecast Coordinates (Class): 21.7°N 113.7°E (TY)

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: Redmund G. Nacario and David Michael V. Padua for WeatherPhilippines

https://weatherph.org/wp-content/uploads/2018/09/Ompong18_18_signals.png


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