Monday, August 21, 2017

Tropical Storm HATO (ISANG) Update Number 004


Tropical Storm HATO (ISANG) Update Number 004





Issued at: 6:15 AM PhT (22:15 GMT) Monday 21 August 2017
Next update: Monday Afternoon, 21 August 2017
Current Status and Outlook

Tropical Storm HATO (ISANG) has maintained its strength while speeding up west-northwestward in the direction of the Batanes Group of Islands. Its western rainbands now spreading across Extreme Northern Luzon.

The storm is expected to continue moving west-northwest within the next 24 hours at a decreased speed of 12 km/hr towards the Batanes Group of Islands. TS HATO (ISANG) is expected to become a Severe Tropical Storm (STS) tonight.

*TS HATO (ISANG) and its associated Trough, together with the Southwesterly Windflow will bring scattered to occasional rain showers and thunderstorms across the Rest of Luzon and Visayas, becoming more frequent along the western sections.

Where is HATO (ISANG)?As of 5:00 AM PhT, August 21…2100 GMT. The center was located over the westernmost part of the North Philippine Sea (near 20.0N 124.0E), about 215 km east-southeast of Basco, Batanes or 257 km northeast of Santa Ana, Cagayan.
How strong is it?

Maximum Sustained Winds (10-min avg): 65 kph near the center…Gustiness: 85 kph.

Past Movement (06 hrs)It was moving West-Northwest @ 36 kphtowards Batanes Group of Islands.
Potential Landfall Area(s):: None.
What Philippine areas will be most affected?*:: Batanes and Babuyan Group of Islands – Today.

*Where moderate to heavy rains of 30 to 100 millimeters will be expected.

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

TUESDAY EARLY MORNING: Intensifies into a severe tropical storm (STS) as it passes over or very close to Batanes Island Group…about 40 km southwest of Itbayat, Batanes [2AM Aug 22: 20.5N 121.6E @ 110kph].  Confidence LevelLOW.

WEDNESDAY EARLY MORNING: Becomes a Typhoon as it approaches Hong Kong Area, outside of the Philippine Area of Responsibility (PAR)…about 260 km east of Hong Kong, China [2AM Aug 23: 22.0N 116.6E @ 120kph].  Confidence LevelLOW.

**Important Note: 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 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.

Other Storm Info> 24 hr. Rain Accumulation (across its circulation): 25 to 350 mm [Light to Extreme]

> Minimum Central Pressure: 996 millibars (hPa)

> Size of Circulation [Convective Cloud-Based, in diameter]: 525 km (Small)

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

Additional DistancesTime/Date: 5:00 AM PhT Mon August 21, 2017
Location of Center/Eye: Near 20.0º N Lat 124.0º E Lon
Distance 1: 308 km NE of Aparri, Cagayan
Distance 2: 369 km ENE of Pagudpud, Ilocos Norte
Distance 3: 382 km NNE of Ilagan City, Isabela
Distance 4: 410 km ENE of Laoag City, Ilocos Norte
Distance 5: 679 km NNE 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: David Michael V. Padua for WeatherPhilippines


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