Monday, July 21, 2014

Typhoon MATMO (HENRY) Update #008


for Sunday, 20 July 2014 [7:16 PM PhT]



Issued at: 6:00 PM PhT (10:00 GMT) Monday 21 July 2014
Next Update: 12:00 AM PhT (16:00 GMT) Tuesday 22 July 2014

Typhoon MATMO (HENRY) has gained more strength as it moves across the warm waters of the Philippine Sea...continues to threaten Northern Cagayan and the Calayan-Babuyan-Batanes Group of Islands. The potential landfall area of this typhoon shall be over Eastern Taiwan by Wednesday early morning.

The western outer rainbands of this typhoon will continue to bring scattered to widespread rains and thunderstorms across Eastern Luzon including the Bicol Region tonight. The threat of flash floods and landslides are likely in hazard-prone areas especially along river banks and mountain slopes of the affected areas during the occurrence of severe thunderstorms. Residents are advised to take necessary precautions.

Residents and visitors along Extreme Northern Luzon, Taiwan, and the Southern Islands of Japan should closely monitor the development of TY Matmo (Henry).

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 by the current tropical cyclone.

NORTHERN CAGAYAN & THE CALAYAN-BABUYAN-BATANES GROUP OF ISLANDS:  Moderate to heavy rains of 30 to 100 mm will be experienced beginning Monday evening until Wednesday afternoon. While, Batanes Group of Islands will have Tropical Storm Force Winds of 75 kph to 100 kph beginning early Tuesday morning until Wednesday morning. Residents living along the hazard-prone areas are advised to seek shelter and take precautionary measures against strong winds, storm surges, flashfloods and landslides.


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

Classification/Name: TY Matmo (Henry)
Location: Over the northern portion of the Philippine Sea (near 18.6N 125.8E)
About: 380 km east of Santa Ana, Cagayan...or 450 km southeast of Basco, Batanes
Maximum Sustained Winds (10-min avg): 130 kph near the center...Gustiness: 160 kph
24 hr. Rain Accumulation (near and west of the center): 200 to 500 mm [Heavy to Extreme]
Minimum Central Pressure: 974 millibars (hPa)
Size (in diameter): 720 km (Average)
Area of Damaging Winds (95 kph or more): 110 kilometers from the center
Past Movement: Northwest @ 28 kph
Forecast Movement: Northwest @ 21 kph
Towards: Batanes-Taiwan Area
CPA [ETA] to Batanes Group: Tuesday Afternoon [between 10 AM - 2 PM PhT]


TY Matmo (Henry) is expected to move northwest throughout the outlook period...with a decrease in forward speed during the next 24 hours...and slightly accelerates through 48 hours. On the forecast track, the typhoon will continue to move across the northern portion of the Philippine Sea this evening...and will traverse the Bashi Channel on its way to Eastern Taiwan on Tuesday through Wednesday early morning.

Matmo (Henry) will continue to gain strength through the next 24 hours, and shall weaken thereafter due to its interaction with the mountains of Taiwan. Advance Intensity Forecast (AIF) shows its 10-minute maximum sustained winds increasing to 150 kph by Tuesday afternoon.

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

TUESDAY AFTERNOON: Gains more strength as it moves across the Bashi Channel...about 170 km northeast of Basco, Batanes [2PM JUL 22: 21.7N 123.0E @ 150kph].
WEDNESDAY AFTERNOON: Appoaches the eastern coasts of Northern Fujian after traversing Northern Taiwan...weakens slightly...about 90 km east-northeast of Fuzhou City, China [2PM JUL 23: 26.2N 120.2E @ 140kph].
THURSDAY AFTERNOON: Weakens significantly into a Tropical Storm as it moves inland over Southeastern China...about 225 km west-northwest of Wenzhou City, China [2PM JUL 24: 28.8N 118.6E @ 65kph].

*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 Mon Jul 21, 2014
Location of Center: Near 18.6º N Lat 125.8º E Lon
Distance 1: 435 km ENE of Tuguegarao, Cagayan
Distance 2: 435 km E of Aparri, Cagayan
Distance 3: 410 km NE of Palanan, Isabela
Distance 4: 475 km NE of Casiguran, Aurora
Distance 5: 485 km SE of Itbayat, Batanes

Issued by: Leonilo C. Millanes for









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

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