Tuesday, September 29, 2009

TD 18W (UNNAMED) - Update #005

 


for Tuesday, 29 September 2009 [4:45 AM PST]

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Typhoon2000 (T2K) NEWS (Mon September 28 2009):

Currently issuing 6-hrly (except 12 AM) advisories on TD 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 005

6:00 AM PST (22:00 GMT) Tue 29 September 2009
Source: T2K ANALYSIS / JTWC WARNING #007
View: Advisory Archives (2004-2009)

  • Tropical Depression 18W (UNNAMED) turning WNW..now on its closest approach to Chuuk Island.

    *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 continue tracking WNW and intensify into a Tropical Storm. The 2 to 5-day Long-Range forecast shows the system maintaining its WNW track, passing very close to the south of Guam by early Thursday morning Oct 01. 18W shall enter the Philippine Area of Responsibility (PAR) on early Saturday morning (Oct 3) across the Northern Philippine Sea on Sunday Oct 04, threatening Okinawa Area. 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 Tue September 29 2009
    Location of Center: 9.8º N Lat 152.6º E Lon
    Distance 1: 940 km (507 nm) SE of Guam, CNMI
    Distance 2: 960 km (518 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: WNW @ 17 kph (09 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): 5 AM PST Tue Sep 29
    JTWC Ship Avoidance TrackMap:
    18 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

  • JTWC (US NAVY/AIR FORCE) 12, 24, 48 & 72 HR. FORECAST & REMARKS:

    2 PM (06 GMT) 29 SEPTEMBER: 10.4N 151.4E / 65-85 KPH (TS) / WNW @ 20 KPH
  • 2 AM (18 GMT) 30 SEPTEMBER: 11.2N 149.3E / 65-85 KPH (TS) / WNW @ 22 KPH
    2 AM (18 GMT) 01 OCTOBER: 12.8N 144.7E / 85-100 KPH (TS) / WNW @ 22 KPH
    2 AM (18 GMT) 01 OCTOBER: 14.4N 140.1E / 100-130 KPH (TS) / WNW @ 22 KPH

    REMARKS: 2 AM (18 GMT) 29 SEPTEMBER POSITION: 9.7N 153.2E.
    *RECENT ANIMATED INFRARED IMAGERY SHOWS A
    PARTIALLY EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) WITH DEEP
    CONVECTION LOCATED JUST TO THE WEST OF THE LLCC. A 281533Z AMSR-E
    IMAGE SHOWS CURVED INFLOW THAT IS DEVOID OF CONVECTION WRAPPING INTO
    THE LLCC. DEEP CONVECTION IS SEEN JUST TO THE WEST OF THE LLCC WITH
    SLIGHT EVIDENCE OF CURVATURE IN THE CONVECTIVE SIGNATURE. UPPER
    LEVEL ANALYSIS SHOWS THE SYSTEM IS JUST SOUTH OF THE UPPER-LEVEL
    NEAR-EQUATORIAL RIDGE AXIS UNDER DIFFLUENT EASTERLY FLOW THAT IS
    PROVIDING MODERATE WESTWARD VENTING. THE SYSTEM IS CURRENTLY
    STEERING ALONG THE SOUTHERN PERIPHERY OF THE LOW- TO MID-LEVEL
    SUBTROPICAL RIDGE (STR). THE SYSTEM WILL CONTINUE TO TRACK WEST-
    NORTHWESTWARD THROUGH TAU 72, AFTER WHICH IT WILL SEE A SLIGHTLY
    MORE NORTHWARD TRACK AS IT MOVES TOWARDS A WEAKNESS IN THE STR.
    CURRENT MODEL GUIDANCE IS FAIR THROUGH TAU 72, AFTER WHICH THERE IS
    CONCERN THAT INTERACTION WITH TS 19W, STRENGTHENING TO THE WEST,
    COULD RESULT IN ACCELERATION OR AN ERRATIC TRACK WITH REGARDS TO
    18W...
    (
    more)

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    RECENT WUNDERGROUND.COM TRACKING CHART
    :


    _________________________________________________________________________________________________________________

     
    RECENT MTSAT-1R SATELLITE IMAGE:


    > Image source:  NOAA SATELLITE CENTER 
    ____________________________________________________________________________________________________________________

    RECENT WUNDERGROUND SATELLITE ANIMATION: (EXPERIENCING TECHNICAL PROBLEMS)


    > Image source:  Wunderground.com (http://www.wunderground.com/)
    ____________________________________________________________________________________________________________________

    NOTE:
     
      ^ - JTWC commentary remarks (for Meteorologists) from their latest warning.
    __________________________________________________________________________________________

    >> To know the meteorological terminologies and acronyms used on this update visit the ff:

       
    http://typhoon2000.ph/tcterm.htm  
       
    http://www.nhc.noaa.gov/aboutgloss.shtml
        http://www.srh.noaa.gov/oun/severewx/glossary.php
        http://www.srh.weather.gov/fwd/glossarynation.html
        http://www.nhc.noaa.gov/acronyms.shtml
    __________________________________________________________________________________________

    For the complete details on TD 18W (UNNAMED)...go visit our website @:

    >
    http://www.typhoon2000.com
    http://www.maybagyo.com

    :: Kindly view our site's disclaimer at: 
       
    http://www.typhoon2000.ph/disclaimer.htm


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