Saturday, October 12, 2013

Typhoon NARI (SANTI) Update #012


for Saturday, 12 October 2013 [2:41 PM PhT]


Issued at: 1:30 PM PhT (05:30 GMT) Saturday 12 October 2013

Typhoon NARI (SANTI) has maintained its strength as it continues to move generally westward further out into the West Philippine Sea. It is expected to exit the Philippine Area of Responsibility (PAR) by midnight. Improving weather conditions will be expected today as the cyclone moves farther away from Luzon.

Residents and visitors along Hainan Island and Central Vietnam should closely monitor the development of Nari (Santi).

Do not use this for life or death decisions. This update is intended for additional information purposes only. Kindly refer to your national weather agency for official warnings, advisories or bulletins.


As of 11:00 am today, the cloud-filled eye of TY Nari (Santi) was located over the West Philippine Sea...about 175 km west-northwest of Iba, Zambales or 180 km west-southwest of Cape Bolinao, Pangasinan...currently moving west with a forward speed of 20 km/hr towards the West Philippine Sea.

Maximum Sustained Winds (1-min. avg) have remained at 165 km/hr near the center with higher gusts. Typhoon Force Winds (118 km/hr or more) extend outward up to 55 kilometers from the center...and Tropical Storm Force Winds (63-117 km/hr) extend outward up to 165 kilometers. A WeatherPhilippines/Meteomedia Automated Weather Station (AWS) based in SM City Tarlac has measured wind gusts of 146 km/hr blowing from the north-northeast at around 1:30 AM PhT this morning. Nari (Santi) remains an average-sized tropical cyclone with a diameter of 610 kilometers across. The 24-hour rainfall accumulation near the center of Nari (Santi) is estimated to be extreme (320 mm).


TY Nari (Santi) is expected to continue moving westward during the next 24 hours slowing down through 48 hours. On the forecast track, the core of Nari (Santi) will continue to move across the West Philippine Sea...passing along the Scarborough (Panatag) Shoal later this afternoon and leave the Philippine Area of Responsibility (PAR) by midnight. By Monday morning, Nari will be approaching the shores of Central Vietnam.

TY Nari (Santi) is expected to re-intensify over the West Philippine Sea during the next 24 hours and will rapidly lose strength through 48 hours. Advance Intensity Forecast (AIF) shows its 1-minute maximum sustained winds increasing to 185 km/hr on Sunday morning.

The following is the summary of the 2-day forecast outlook and an extended 3-day forecast on this system:

SUNDAY MORNING: Moving across the South China Sea...regains Category 3 it heads west towards Vietnam...about 525 km east-southeast of Da Nang, Vietnam [11AM OCT 13: 15.7N 113.1E @ 185kph].
MONDAY MORNING: Moving closer to Central Vietnam...weakens...about 170 km east of Da Nang, Vietnam [11AM OCT 14: 16.0N 109.8E @ 150kph].
TUESDAY MORNING: Moves over Central Laos...after making landfall over Central Vietnam...starts to dissipate...about 110 km west-southwest of Hue, Vietnam [11AM OCT 15: 16.2N 106.6E @ 100kph].

*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.


Below is the summary of the storm's parts and its hazards affecting specific areas. You can also view this image link for you to understand the parts.

CLOUD-FILLED EYE - Over the eastern part of the West Philippine Sea. Possible calm and lull conditions (with <20 kph winds) will be expected inside the eye (click here to know more about the EYE).
EYEWALL - where Typhoon Conditions with Typhoon Force Winds (>118 kph) will be expected within this wall. Affected Areas: Eastern part of the West Philippine Sea (click here to know more about the Eyewall).
INNER RAINBANDS - where Tropical Storm Conditions with Tropical Storm Force Winds (63-100 kph) will be expected. Affected Areas: Eastern part of the West Philippine Sea.
OUTER RAINBANDS - where Tropical Depression Conditions with light, moderate to strong winds (30-62 kph) will be expected. Affected Areas: West Philippine Sea, Zambales, Western Pangasinan and Bataan. (click here to know more about Rainbands).
24HR TOTAL RAINFALL ACCUMULATION - from 5 up to 100 mm (slight to heavy rainfall) can be expected along areas affected by the outer & inner rainbands (see above)...with isolated amounts of 101 to 320 mm (heavy to extreme) along areas to the west, south and near the center of Nari (Santi).

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


Time/Date: 11:00 AM PhT Sat Oct 12, 2013
Class/Name: TY Nari (Santi)
Location of Eye: Near 15.5º N Lat 118.4º E Lon
Distance 1: 175 km WNW of Iba, Zambales
Distance 2: 180 km WSW of Cape Bolinao, Pangasinan
Distance 3: 210 km WSW of Dagupan City
Distance 4: 220 km NW of Subic, Zambales
Distance 5: 235 km W of Tarlac City
Distance 6: 300 km WNW of Metro Manila
MaxWinds (1-min avg): 165 kph near the center
Peak Wind Gusts: 205 kph
Saffir-Simpson Hurricane Scale: Category 2
Present Movement: West @ 20 kph
Towards: West Philippine Sea
24hr Rainfall Accum (Near the Center): Extreme [320 mm]
Minimum Central Pressure: 956 millibars (hPa)
Size (in Diameter): 610 km [Average]
Max Sea Wave Height (near center): 27 feet

T2K/WP StormTracks (for Public): GIF | Google Map (Flash)


CURRENT TRACKING MAP: _____________________________________________________________________________





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

For the complete details on TY NARI (SANTI)...go visit our website @:


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