TYPHOON VAMCO [11W/0910]

VAMCO (11W) MAX WIND SPEED PER AGENCY:

+ USA (JTWC/1-min avg): 195 km/hr
+ Taiwan (CWB/10-min avg): 185 km/hr
+ Beijing (NMC/2-min avg): 170 km/hr
+ Japan (JMA/10-min avg): 165 km/hr

T2K PUBLIC ADVISORY NUMBER 006
12:00 PM PST (04:00 GMT)
Thu 20 August 2009
Source: T2K ANALYSIS / JTWC WARNING #013
# View: Advisory Archives (2004-2009)

Typhoon VAMCO (11W) now a Category 3 system w/ 195-kph winds...remains far-out at sea.

*Residents and visitors along Marcus Island should closely monitor the progress of VAMCO.

*Kindly refer to your local warnings & bulletins issued by your country's official weather agency. This advisory is intended for additional information purposes only.

+ Forecast Outlook: VAMCO is expected to track NNW during the next 1 to 3 days reaching near super typhoon strength on Saturday Aug 22 w/ wind speeds of 230 kph. The 5-day Long-Range Forecast shows VAMCO veering to the north on Monday Aug 24 then towards the NNE on Tuesday Aug 25. It shall start to weaken as it enters cooler sea surface temperatures accompanied with increasing vertical wind shear (upper level winds).

+ Effects: Rain bands of VAMCO is expected to reach the island of Marcus within the next 1 to 2 days. No major land areas will be affected by this howler.

[Important Note: Please keep in mind that the above forecast outlook, effects, current monsoon intensity, & tropical cyclone watch changes every 6 to 12 hrs!]

Time/Date: 12:00 PM PST Thu August 20 2009
Location of Center: 18.9º N Lat 157.1º E Lon
Distance 1: 605 km (327 nm) SSE of Marcus Island
Distance 2: 1,000 km (540 nm) West of Wake Island
Distance 3: 1,280 km (692 nm) ENE of Saipan
MaxWinds (1-min avg): 195 kph (105 kts) near the center
Peak Wind Gusts: 240 kph (130 kts)
Saffir-Simpson Scale: Category 3
Coastal Storm Surge Height: 9-12 feet [2.7-3.9 m]
Central Pressure: 944 millibars (hPa)
Recent Movement: NNW @ 04 kph (02 kts)
General Direction: NW Pacific Ocean
Size (in Diameter): 665 km (360 nm) / Average
Max Sea Wave Height (near center): 31 ft (9.4 m)
Wunder TrackMap (for Public): 8 AM PST Thu Aug 20
JTWC Ship Avoidance TrackMap: 00Z Thu Aug 20
Multi-Agency Forecast TrackMap: 8 AM Thu Aug 20
TSR Wind Probabilities: Current to 120 hrs lead
Zoomed Satellite Pic: Near Real-Time
Wunderground Animation: 6-12 hr. GIF Loop