Monday, August 21, 2017

Tropical Storm HATO (ISANG) Update Number 005


Tropical Storm HATO (ISANG) Update Number 005





Issued at: 12:30 PM PhT (04:30 GMT) Monday 21 August 2017
Next update: Monday Evening, 21 August 2017
Current Status and Outlook

Tropical Storm HATO (ISANG) is currently being affected by strong upper-level winds as it slows down during the past 6 hours. Most of its rainbands are located along the western and southern sections of its circulation and is now affecting Extreme Northern Luzon.

The storm is expected to continue moving west-northwest within the next 24 hours at a speed of 16 km/hr, and will pass over or very close to the towns of Basco and Itbayat by early tomorrow morning (Aug 22). TS HATO (ISANG) is expected to become a Severe Tropical Storm (STS) tomorrow evening .

*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 11:00 AM PhT, August 21…0300 GMT. The center was located over the westernmost part of the North Philippine Sea (near 20.3N 124.7E), about 282 km east of Basco, Batanes or 335 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 Northwest @ 13 kphtowards Batanes-Southern Taiwan Area.
Potential Landfall Area(s):: Over Lufeng-Shantou Area, Guangdong Province, China between 7-8am on Wednesday (Aug 23), with a Medium Strike Probability of 50-60%.
What Philippine areas will be most affected?*:: Batanes and Babuyan Group of Islands, Cagayan, Ilocos Norte, Abra,  – 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 MORNING: Intensifies slightly as it passes over or very close to the Batanes Island Group…about 43 km southwest of Itbayat, Batanes [8AM Aug 22: 21.1N 121.6E @ 85kph].  Confidence LevelHIGH.

WEDNESDAY MORNING: Becomes a Severe Tropical Storm (STS) as it makes landfall along the coast of Eastern Guangdong, China…about 228 km east-northeast of Hong Kong, China [8AM Aug 22: 23.1N 116.2E @ 110kph].  Confidence LevelMEDIUM.

**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 480 mm [Light to Extreme]

> Minimum Central Pressure: 996 millibars (hPa)

> Size of Circulation [Convective Cloud-Based, in diameter]: 740 km (Medium)

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

Additional DistancesTime/Date: 11:00 AM PhT Mon August 21, 2017
Location of Center/Eye: Near 20.3º N Lat 124.7º E Lon
Distance 1: 387 km NE of Aparri, Cagayan
Distance 2: 440 km NNE of Palanan, Isabela
Distance 3: 453 km NE of Ilagan City, Isabela
Distance 4: 470 km NE of Tabuk City, Kalinga
Distance 5: 745 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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