Saturday, November 02, 2013

Typhoon KROSA (VINTA) Update #015


for Saturday, 02 November 2013 [8:58 AM PhT]


Issued at: 6:00 AM PhT (22:00 GMT) Saturday 02 November 2013
Next Update: 6:00 PM PhT (10:00 GMT) Saturday 02 November 2013

Typhoon KROSA (VINTA) has regained at Category 3 as it slows down while over the South China Sea.

Residents and visitors along Southern China, Hainan Island and Central Vietnam should closely monitor the development of Krosa (Vinta).

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 5:00 am today, the large eye of TY Krosa (Vinta) was located over the South China Sea...about 505 km west-northwest of Laoag City, Ilocos Norte or 355 km south-southeast of Hong Kong, China...currently moving west-northwest with a decreased forward speed of 13 km/hr across the South China Sea.

Maximum Sustained Winds (1-min. avg) have increased to 185 km/hr near the center with higher gusts. Typhoon Force Winds (118 km/hr or more) extend outward up to 140 kilometers from the center...and Tropical Storm Force Winds (63-117 km/hr) extend outward up to 285 kilometers. TY Krosa (Vinta) is a small-sized tropical cyclone with a diameter of 500 kilometers across.


TY Krosa (Vinta) is expected to move westward in the next 12 hours and will turn west-southwest to southwest through 48 hours. On the forecast track, the core of TY Krosa (Vinta) will remain over the open waters of the South China Sea, well to the east of Hainan Island on today through Monday.

TY Krosa (Vinta) will maintain its strength within the next few hours and starts weakening to a Tropical Storm (TS) by 48 hours as it moves across the western part of the South China Sea. Advance Intensity Forecast (AIF) shows its 1-minute maximum sustained winds decreasing to 110 km/hr on early Monday morning.

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

SUNDAY EARLY MORNING: Moving west-southwest across the South China Sea as it loses strength to Category 2...about 335 km south of Hong Kong, China [2AM NOV 03: 19.2N 114.0E @ 160kph].
MONDAY EARLY MORNING: Downgraded to a TS as it moves more southwesterly across the South China Sea, just well to the east of Hainan Island...about 185 km south-southeast of Qionghai, Hainan Is. [2AM NOV 04: 17.7N 111.3E @ 110kph].
TUESDAY EARLY MORNING: Downgraded to a Tropical Depression (TD) as it approaches the coast of Central Vietnam...about 115 km east of Da Nang, Vietnam. [2AM NOV 05: 16.1N 109.3E @ 55kph].

*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.

LARGE 65-KM RAGGED EYE - over the northwestern portion of the South China 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: Northwestern part of the South China 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: Northern and NW part of the South China Sea.
OUTER RAINBANDS - where Tropical Depression Conditions with light, moderate to strong winds (30-62 kph) will be expected. Affected Areas: Coastal areas of Guangdong Province, China and Northern part of the West Philippine and South China Seas (click here to know more about Rainbands).
24HR TOTAL RAINFALL ACCUMULATION - from 5 up to 200 mm (slight to heavy rainfall) can be expected along areas affected by the outer & inner rainbands (see above)...with isolated amounts of 201 to 350 mm (heavy to extreme) along areas near the center of Krosa (Vinta).

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


Time/Date: 5:00 AM PhT Sat Nov 02, 2013
Class/Name: TY Krosa (Vinta)
Location of Eye: Near 19.5º N Lat 116.0º E Lon
Distance 1: 355 km SSE of Hong Kong, China
Distance 2: 395 km SE of Macau, China
Distance 3: 505 km WNW of Laoag City, PH
Distance 4: 580 km E of Qionghai, Hainan Is.
MaxWinds (1-min avg): 185 kph near the center
Peak Wind Gusts: 230 kph
Saffir-Simpson Hurricane Scale: Category 3
Present Movement: West @ 13 kph
Towards: South China Sea
Minimum Central Pressure: 948 millibars (hPa)

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 KROSA (VINTA)...go visit our website @:


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