Tropical Depression 18W (UNNAMED)

18W (UNNAMED) MAX WIND SPEED PER AGENCY:

+ USA (JTWC/1-min avg): 55 km/hr
+ Japan (JMA/10-min avg): 45 km/hr

TROPICAL DEPRESSION 18W [UNNAMED]
T2K PUBLIC ADVISORY NUMBER 002
6:00 AM PST (22:00 GMT)
Mon 28 September 2009
Source: T2K ANALYSIS / JTWC WARNING #003
# View: Advisory Archives (2004-2009)

Tropical Depression 18W (UNNAMED) drifting WSW across Central Micronesia as it slightly intensifies.

*Residents and visitors along the Marianas and Western Micronesia 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 move WNW for the next 24 hours and intensify into a Tropical Storm. The 2 to 5-day Long-Range forecast shows the system continuing WNW-ward, passing very close to Guam by early Wednesday...reaching Typhoon status on Thursday morning, Oct 1st. 18W, as a Typhoon, shall enter the Philippine Area of Responsibility (PAR) early Friday morning, Oct 2nd and shall be approaching Extreme Northern Luzon on Saturday, Oct 03. Please be aware that long-range forecast changes every now and then. Continued monitoring on this potential typhoon is a must for disaster preparedness agencies.

+ Effects: 18W's circulation continues to consolidate. This system is not yet affecting any major Western Pacific Islands as of this time.

[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: 6:00 AM PST Mon September 28 2009
Location of Exposed Center: 9.6º N Lat 155.9º E Lon
Distance 1: 1,280 km (690 nm) ESE of Guam, CNMI
Distance 2: 1,265 km (683 nm) SE of Saipan, CNMI
Distance 3: 1,950 km (1,053 nm) East of Yap, FSM
Distance 4: 2,290 km (1,237 nm) East of P.A.R.
Distance 5: 3,330 km (1,798 nm) East of Northern Mindanao
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: WSW @ 07 kph (04 kts)
General Direction: Southern Marianas
Size (in Diameter): -- km (--- nm) / N/A
Max Sea Wave Height (near center): 13 ft (3.9 m)
NWS-Guam TrackMap (for Public): 5 AM PST Mon Sep 28
JTWC Ship Avoidance TrackMap: 18 GMT Sun Sep 27
TSR Wind Probabilities: Current to 5-days Ahead
Zoomed Satellite Pic: Near Real-Time
Wunderground Animation: 6-12 hr. GIF Loop