Friday, November 01, 2013

Typhoon KROSA (VINTA) Update #012


for Friday, 01 November 2013 [6:55 AM PhT]


Issued at: 6:00 AM PhT (22:00 GMT) Friday 01 November 2013
Next Update: 12:00 NN PhT (04:00 GMT) Friday 01 November 2013

Typhoon KROSA (VINTA) is now emerging over the West Philippine Sea after crossing Extreme Northern Luzon last night. Improving weather is expected as the cyclone moves farther away.

Residents and visitors along Southern China and Hainan Island should closely monitor the development of TY 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 weakening eye of TY Krosa (Vinta) was located near the northwestern coast of Ilocos Norte...about 110 km west-northwest of Pagudpud, Ilocos Norte or 115 km northwest of Laoag City, Ilocos Norte...currently moving west-northwest with a decreased forward speed of 20 km/hr towards the West Philippine and South China Seas.

Maximum Sustained Winds (1-min. avg) are at 150 km/hr near the center with higher gusts. Typhoon Force Winds (118 km/hr or more) extend outward up to 65 kilometers from the center...and Tropical Storm Force Winds (63-117 km/hr) extend outward up to 220 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 throughout the forecast period. On the forecast track, the core of TY Krosa (Vinta) will move across the West Philippine Sea, away from Northern Luzon today and will move out of the Philippine Area of Responsibility (PAR) by this evening. On Saturday through Sunday, Krosa will be approaching the eastern coast of Hainan Island.

TY Krosa (Vinta) will reintensify through the next 48 hours while moving westerly across the West Philippine and South China Seas. Advance Intensity Forecast (AIF) shows its 1-minute maximum sustained winds increasing to a peak of 160 km/hr on Saturday afternoon.

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

SATURDAY EARLY MORNING: Moving west across the South China Sea as it starts reorganizing...about 410 km south-southeast of Hong Kong, China [2AM NOV 02: 19.0N 116.0E @ 140kph].
SUNDAY EARLY MORNING: Reintensifies as it moves closer to Eastern Hainan ...about 275 km east-southeast of Qionghai, Hainan Is. [2AM NOV 03: 18.9N 113.2E @ 150kph].
MONDAY EARLY MORNING: Turns southwestward as it weakens to a Tropical Storm (TS)...about 170 km southeast of Sanya, Hainan Is. [2AM NOV 04: 17.1N 110.5E @ 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 northern portion 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: Northern 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: Coastal areas of Ilocos Provinces, Babuyan Islands and the Balintang Channel.
OUTER RAINBANDS - where Tropical Depression Conditions with light, moderate to strong winds (30-62 kph) will be expected. Affected Areas: Northern part of the West Philippine Sea, Western Pangasinan, La Union, Benguet and the rest of Northwestern Luzon. (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 250 mm (heavy) along areas near the center of Krosa (Vinta).
COASTAL STORM SURGE FLOODING - possible 4-5 ft (1.2-1.7 m) above normal tide levels...accompanied by large and dangerous battering waves can be expected along the coastal, inland lakes and beach front areas of Ilocos Provinces tonight and tomorrow. Minimal damage is likely on this type of storm surge. Danger from Rip Currents or Rip Tides can be expected along the rest of the beach-front areas of Luzon and Southern China (click here to know more about Storm Surge).

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 Fri Nov 01, 2013
Class/Name: TY Krosa (Vinta)
Location of Eye: Near 18.8º N Lat 119.8º E Lon
Distance 1: 110 km WNW of Pagudpud, Ilocos Norte
Distance 2: 115 km NW of Laoag City
Distance 3: 425 km S of Kaohsiung, Taiwan
Distance 4: 700 km SE of Hong Kong, China
MaxWinds (1-min avg): 150 kph near the center
Peak Wind Gusts: 185 kph
Saffir-Simpson Hurricane Scale: Category 1
Present Movement: WNW @ 20 kph
Towards: Southern China-Hainan Island Area.
Minimum Central Pressure: 963 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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