Tuesday, September 15, 2009

KOPPU (NANDO) downgraded to Tropical Storm... [Update #009]

 


for Tuesday, 15 September 2009 [3:26 PM PST]

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Typhoon2000 (T2K) NEWS (Sun September 13 2009):

Currently issuing 6-hrly advisories (except 12:00 AM) on TS KOPPU (NANDO).


KOPPU (NANDO) MAX WIND SPEED PER AGENCY:

+ Hong Kong (HKO/10-min avg): 110 km/hr
+ USA (JTWC/1-min avg): 110 km/hr
+ Beijing (NMC/2-min avg): 125 km/hr
+ Taiwan (CWB/10-min avg): 105 km/hr
+ Japan (JMA/10-min avg): 100 km/hr
+ Korea (KMA/10-min avg): 100 km/hr

TROPICAL STORM KOPPU [NANDO/16W/0915]
T2K PUBLIC ADVISORY NUMBER 009

2:00 PM PST (06:00 GMT) Tue 15 September 2009
Source: T2K ANALYSIS / JTWC WARNING #009 (FINAL)
View: Advisory Archives (2004-2009)

  • KOPPU (NANDO) downgraded into a Tropical Storm...moving inland across Western Guangdong...Heavy rains expected.

    *Residents and visitors along Western Guangdong should closely monitor the progress of KOPPU (NANDO).

    *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: KOPPU is expected to move inland across the rugged terrain of Western Guangdong today and rapidly dissipate within the next 24 to 36 hours.

    + Effects: KOPPU's circulation has started to rapidly decay while moving over Western Guangdong. Stormy conditions w/ rain & winds of up to 100 kph will continue to be felt along the path of KOPPU. 1-day rainfall accumulations of 100 up to 250 mm can be expected along NANDO's rainbands with isolated accumulations of up to 300 mm near its center and along mountain slopes. Residents in low-lying areas & steep slopes must remain alert & seek evacuation for possible life-threatening flash floods, mudslides & landslides due to the anticipated heavy rains brought about by this system. Precautionary measures must be initiated if necessary. Possible coastal Storm Surge flooding of up to 4 feet above normal tide levels...accompanied by large and dangerous battering waves...is possible along the coastal areas of Western Guangdong. Very minimal damage is likely on this type of storm surge.

    [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: 2:00 PM PST Tue September 15 2009
    Location of Center: 22.6º N Lat 110.5º E Lon
    Distance 1: 145 km (78 nm) North of Zhanjiang, China
    Distance 2: 310 km (167 nm) WNW of Macau
    Distance 3: 385 km (208 nm) WNW of Hong Kong
    MaxWinds (1-min avg):
    110 kph (60 kts) near the center
    Peak Wind Gusts: 140 kph (75 kts)
    Saffir-Simpson Scale: Tropical Storm
    Coastal Storm Surge Height: 1-3 feet [0.3-0.9 m]
    Central Pressure: 978 millibars (hPa)
    Recent Movement: WNW @ 22 kph (12 kts)
    General Direction: Western Guangdong
    Size (in Diameter): 665 km (360 nm) / Avg/Large
    Max Sea Wave Height (near center): 21 ft (6.4 m)
    HKO TrackMap (for Public): 2 PM PST Tue Sep 15
    JTWC Ship Avoidance TrackMap:
    00Z Tue Sep 15
    Multi-Agency Forecast TrackMap: 2 PM Tue Sep 15
    TSR Wind Probabilities: Current to 1-day Ahead
    Zoomed Satellite Pic:
    Near Real-Time
    Wunderground Animation: 6-12 hr. GIF Loop

  • JTWC 12 & 24 HR. FORECAST & REMARKS:

    8 PM (12 GMT) 15 SEPTEMBER: 22.1N 112.0E / 65-85 KPH (Tropical Storm) / NW @ 17 KPH
  • 8 AM (00 GMT) 16 SEPTEMBER: 24.1N 108.4E / 35-55 KPH (Tropical Disturbance / LPA) / --- @ -- KPH

    REMARKS: 8 AM (00 GMT) 15 SEPTEMBER POSITION: 22.1N 112.0E.
    ^ANIMATED MULTISPECTRAL IMAGERY DEPICTS A SYSTEM WITH WELL DEFINED
    CONVECTIVE BANDS WRAPPING INTO A LOW LEVEL CIRCULATION CENTER THAT
    IS RAPIDLY LOSING DEFINITION AS IT TRACKS INLAND. THE SYSTEM IS
    TRACKING INTO SOUTHERN CHINA UNDER THE INFLUENCE OF THE LOW- TO MID-
    LEVEL SUBTROPICAL RIDGE (STR) TO THE NORTH. THE SYSTEM IS RAPIDLY
    WEAKENING OVER LAND AND WILL CONTINUE TO WEAKEN UNTIL IT DISSIPATES
    AROUND TAU 24. AN APPROACHING MID-LATITUDE TROUGH PASSING THROUGH
    CENTRAL CHINA IS SLIGHTLY ERODING THE STR AND THIS IS ALLOWING TS
    16W TO REMAIN ON A NORTHWESTWARD TRACK THROUGHOUT THE FORECAST
    PERIOD. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT
    TYPHOON WARNING CENTER (NAVMARFCSTCEN). THE SYSTEM WILL BE CLOSELY
    MONITORED FOR SIGNS OF REGENERATION...
    (
    more)

    >> KOPPU, meaning: Crater; CupName contributed by: Japan.
    __________________________________________________________________________________________________________________________________________________________
    _______________________________________________________________________________________________________________________________________


    RECENT HKO TRACKING CHART
    :


    _________________________________________________________________________________________________________________

     
    RECENT MTSAT-1R SATELLITE IMAGE:


    > Image source:  NOAA SATELLITE CENTER 
    ____________________________________________________________________________________________________________________

    RECENT WUNDERGROUND SATELLITE ANIMATION:


    > 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 TS KOPPU (NANDO)...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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