Thursday, December 04, 2014

Super Typhoon HAGUPIT (RUBY) Update #006


for Thursday, 04 December 2014 [7:32 PM PhT]


Issued at: 6:55 PM PhT (10:30 GMT) Thursday 04 December 2014
Next Update: Early Friday morning, 05 December 2014

Super Typhoon HAGUPIT (RUBY) has slowed down gradually (from 30 to 18 kph) during the past 6 hours while it is still over the Philippine Sea...remains an extremely catastrophic cyclone, threatening Eastern Visayas and the Bicol Region this weekend. 

Residents and visitors along Southern Luzon, Visayas and Northeastern Mindanao should closely monitor the development of Hagupit (Ruby).

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.


Below are the regions or places in the Philippines that could be affected or that are being affected by the hazards generated by the current tropical cyclone.


  • Heavy Rains (50-100 mm): Rest of Bicol Region incl. Masbate, Eastern Visayas, and Northern Caraga incl. Dinagat and Siargao Islands - beginning Friday Evening (Dec 05). Read more...
  • Moderate to Heavy Rains (30-50 mm): Northern Bicol, Bondoc Peninsula, Northeastern Panay, Northern Negros, Northern and Central Cebu, Bohol, portions of Northern Mindanao, and the Rest of Caraga - beginning Friday evening (Dec 05). Read more...

  • Possible coastal storm surge flooding of >5.5 m (>18 ft) above normal tide levels...accompanied by large and dangerous battering waves can be expected along the coastal, inland lakes and beach front areas of Eastern Visayas and Southern Bicol beginning late Friday evening onwards. Catastrophic damage is likely on this type of storm surge. Danger from Rip Currents or Rip Tides can be expected along the beach-front areas of Surigao del Norte, Rest of Visayas, Rest of Bicol Region and Eastern Luzon. (click here to know more about Storm Surge).


As of 5:00 PM PhT today...0900 GMT...Dec 04.

Classification/Name: STY Hagupit (Ruby)
Location: Over the southeastern part of the Philippine Sea (near 10.7N 131.8E)
About: 630 km east-northeast of Siargao Island...or 705 km east-southeast of Borongan City, Eastern Samar
Maximum Sustained Winds (10-min avg): 270 kph near the center...Gustiness: 320 kph
24 hr. Rain Accumulation (near the center): 150 to 400 mm [Heavy to Extreme]
Minimum Central Pressure: 907 millibars (hPa)
Size of Circulation [Convective Cloud-Based, in diameter]: 985 km (Medium)
Area of Damaging Winds (95 kph or more): 140 km from the Center
Past Movement: West-Northwest @ 18 kph
Forecast Movement: West-Northwest @ 14 kph
Towards: Philippine Sea


STY Hagupit (Ruby) is expected to continue moving in a straight west-northwest track in the next 24 hours, turning slightly to the west through 48 hours. On the forecast track, STY Hagupit (Ruby) will be traversing the central-southern part of the Philippine Sea by Friday afternoon...and shall move with decreasing speed closer to the coast of Eastern and Northern Samar by Saturday afternoon.

STY Hagupit is expected to continue to intensify throughout the outlook period as it moves over favorable environment and warmer sea surface temperatures (SSTs) of the Philippine Sea. Advance Intensity Forecast (AIF) shows its 10-minute maximum sustained winds increasing further to 285 kph by Saturday afternoon.

The following is the 3-day forecast outlook summary for this system:

FRIDAY AFTERNOON: Continues to intensify as it traverses the central-southern part of the Philippine Sea...about 415 km east of Borongan City, Eastern Samar [2PM DEC 05: 11.6N 129.2E @ 270kph].
SATURDAY AFTERNOON: Reaches its peak wind strength as it slows down while approaching the coast of Northeastern Samar...about 140 km east-northeast of Borongan City, Eastern Samar [2PM DEC 06: 12.0N 126.6E @ 260kph].
SUNDAY AFTERNOON: Weakens slightly after making landfall over Northern Samar...over San Bernardino Strait...and lands anew on the southern tip of Sorsogon...about 50 km south-southeast of Sorsogon City [2PM DEC 07: 12.6N 124.2E @ 240kph].

*Please be reminded that the Forecast Outlook changes every 6 hours, and the Day 2 and 3 Forecast Track has an average error of 100 and 250 km respectively...while the wind speed forecast error, averages 35 kph 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.

Important Note: Please keep in mind that the above hazards summary and forecast outlook changes every 6 to 12 hrs!


Time/Date: 5:00 PM PhT Thu Dec 04, 2014
Location of Eye: Near 10.7º N Lat 131.8º E Lon
Distance 1: 665 km ESE of Guiuan, Eastern Samar
Distance 2: 745 km ESE of Tacloban City
Distance 3: 865 km ENE of Metro Cebu
Distance 4: 885 km SE of Virac, Catanduanes
Distance 5: 920 km ESE of Legazpi City









>> To know the meteorological terminologies and acronyms used on this update visit the ff:

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