TROPICAL DEPRESSION 18W [UNNAMED]

18W (UNNAMED) MAX WIND SPEED PER AGENCY:

+ USA (JTWC/1-min avg): 55 km/hr
+ Japan (JMA/10-min avg): 55 km/hr

TROPICAL DEPRESSION 18W [UNNAMED]
T2K PUBLIC ADVISORY NUMBER 006
11:00 AM PST (03:00 GMT)
Tue 29 September 2009
Source: T2K ANALYSIS / JTWC WARNING #008
# View: Advisory Archives (2004-2009)

Tropical Depression 18W (UNNAMED) has accelerated NW-ward while being disorganized.

*Residents and visitors along the Marianas should closely monitor the progress of 18W (UNNAMED).

*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: 18W is expected to remain a weak storm throughout the forecast outlook...this due to TS PARMA (located to the WSW) which is expected to inhibit further development. The 2 to 5-day Long-Range forecast shows the system just reaching minimal tropical storm and passing very close to Guam tomorrow evening. 18W shall enter the Philippine Area of Responsibility (PAR) on early Friday evening (Oct 2) as a downgraded Depression. Later in the forecast, on Oct 4 - 18W might be absorbed into the circulation of TS PARMA, which is a much stronger system.

+ Effects: 18W's circulation has become obscurred and disorganized. This system may just bring light to moderate rainfall across the Marianas beginning tomorrow.

[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: 11:00 AM PST Tue September 29 2009
Location of Center: 10.8º N Lat 151.3º E Lon
Distance 1: 765 km (413 nm) ESE of Guam, CNMI
Distance 2: 770 km (415 nm) SE of Saipan, CNMI
MaxWinds (1-min avg): 55 kph (30 kts) near the center
Peak Wind Gusts: 75 kph (40 kts)
Saffir-Simpson Scale: Tropical Depression
Coastal Storm Surge Height: 0 feet [0 m]
Central Pressure: 1000 millibars (hPa)
Recent Movement: NW @ 24 kph (13 kts)
General Direction: Southern Marianas
Size (in Diameter): -- km (--- nm) / N/A
Max Sea Wave Height (near center): 15 ft (4.5 m)
NWS-Guam TrackMap (for Public): 11 AM PST Tue Sep 29
JTWC Ship Avoidance TrackMap: 00 GMT Tue Sep 29
TSR Wind Probabilities: Current to 5-days Ahead
Zoomed Satellite Pic: Near Real-Time
Wunderground Animation: 6-12 hr. GIF Loop