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Monthly Global Tropical Cyclone Tracks April 2004
[Summaries and Track Data] [Prepared by Gary Padgett]

               GLOBAL TROPICAL CYCLONE TRACKS - APRIL 2004


          !!!! IMPORTANT -- PLEASE SEE NOTE AT END OF FILE !!!!


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NORTHWEST PACIFIC (NWP) - North Pacific Ocean West of Longitude 180


                        Sources of Information
                        ----------------------

     The track coordinates and 1-minute average maximum sustained wind
  values in general were taken from operational warnings issued by the
  Joint Typhoon Warning Center (JTWC) of the U. S. Air Force and Navy,
  located at Pearl Harbor, Hawaii.  The central pressure and 10-minute
  average maximum sustained wind estimates for most systems were obtained
  from warnings issued by the Japanese Meteorological Agency (JMA), which
  is the World Meteorological Organization's Regional Specialised Meteor-
  ological Centre for the basin.  In a few instances, information from
  warnings issued by other Asian warning centers may have been utilized.
  The center position coordinates from JMA and other centers were com-
  pared with those from JTWC and annotations made in the Remarks column
  when the differences in general amounted to 40-50 nm or more.

     Michael V. Padua of Naga City in the Philippines, owner of the
  Typhoon 2000 website, sends me cyclone tracks based upon warnings
  issued by the Japanese Meteorological Agency and the Philippines'
  Atmospheric, Geophysical & Astronomical Services Administration
  (PAGASA).  A very special thanks to Michael for the assistance he
  so reliably provides.


                            Systems Tracked
                            ---------------

   Super Typhoon SUDAL (03W / 0401 / COSME)            03 - 18 Apr

*************************************************************************

Storm Name: SUDAL                 Cyclone Number: 03W     Basin: NWP
PAGASA Internal Name: COSME       JMA Tropical Storm Number: 0401

   Date   Time   Lat      Lon    Cent  MSW   MSW        Remarks
          (GMT)                 Press 1-min 10-min
                                 (mb) (kts) (kts)
-------------------------------------------------------------------------

04 APR 03 1800   7.0 N  151.0 E  1002         25  JMA warning
04 APR 04 0000   6.4 N  150.4 E  1002   30    30
04 APR 04 0600   6.3 N  149.8 E  1000   30    30
04 APR 04 1200   7.2 N  149.3 E  1000   35    30
04 APR 04 1800   7.4 N  149.2 E  1000   35    30
04 APR 05 0000   8.0 N  148.9 E   998   40    35
04 APR 05 0600   8.9 N  148.8 E   990   55    40
04 APR 05 1200   9.3 N  148.4 E   990   55    40
04 APR 05 1800   9.7 N  147.6 E   985   55    45
04 APR 06 0000   9.4 N  147.0 E   980   60    50
04 APR 06 0600   9.0 N  146.0 E   980   70    50
04 APR 06 1200   9.6 N  145.9 E   980   70    50
04 APR 06 1800   9.6 N  144.9 E   975   75    60
04 APR 07 0000  10.1 N  144.3 E   975   80    60
04 APR 07 0600  10.1 N  143.1 E   975   90    60
04 APR 07 1200   9.7 N  142.1 E   975   90    60
04 APR 07 1800   9.4 N  141.3 E   975   90    60
04 APR 08 0000   9.3 N  140.6 E   965  100    70
04 APR 08 0600   8.9 N  139.9 E   955  105    75
04 APR 08 1200   8.8 N  139.1 E   950  110    80
04 APR 08 1800   8.8 N  138.5 E   950  110    80
04 APR 09 0000   9.1 N  138.1 E   950  110    80  Near Yap Island
04 APR 09 0600   9.5 N  137.2 E   950  110    80
04 APR 09 1200   9.9 N  136.6 E   950  110    80
04 APR 09 1800  10.3 N  135.9 E   940  125    85
04 APR 10 0000  10.9 N  135.2 E   940  130    85
04 APR 10 0600  11.3 N  134.5 E   940  130    85
04 APR 10 1200  11.9 N  133.5 E   940  130    85
04 APR 10 1800  12.4 N  132.8 E   945  130    85
04 APR 11 0000  13.2 N  132.2 E   945  130    85
04 APR 11 0600  13.6 N  131.7 E   945  120    85
04 APR 11 1200  14.4 N  131.5 E   950  110    80
04 APR 11 1800  14.9 N  131.2 E   955  110    75
04 APR 12 0000  15.4 N  131.1 E   955  105    75
04 APR 12 0600  15.7 N  130.8 E   955  115    75
04 APR 12 1200  16.3 N  131.1 E   955  125    75
04 APR 12 1800  16.7 N  131.3 E   955  120    75
04 APR 13 0000  17.1 N  131.7 E   955  120    75
04 APR 13 0600  17.7 N  131.9 E   955  120    75
04 APR 13 1200  18.6 N  132.5 E   955  120    75
04 APR 13 1800  19.5 N  133.2 E   955  115    75
04 APR 14 0000  20.5 N  133.9 E   955  105    75
04 APR 14 0600  21.4 N  135.1 E   955  105    75
04 APR 14 1200  22.3 N  136.3 E   955  105    75
04 APR 14 1800  23.2 N  138.0 E   965  100    65
04 APR 15 0000  23.9 N  139.0 E   970   90    65
04 APR 15 0600  24.5 N  141.4 E   970   65    60
04 APR 15 1200  25.1 N  143.2 E   975   55    55
04 APR 15 1800  26.5 N  146.0 E   980   50    55  Extratropical per JTWC
04 APR 16 0000  27.6 N  148.1 E   980         55  JMA warnings
04 APR 16 0600  28.5 N  150.8 E   985         50
04 APR 16 1200  29.0 N  154.0 E   996         45  Extratropical per JMA
04 APR 17 0000  33.0 N  162.0 E   996         40  1800Z data missing
04 APR 17 0600  35.0 N  168.0 E   994         40
04 APR 17 1200  37.0 N  174.0 E   996         45
04 APR 17 1800  39.0 N  180.0 E  1000         45
04 APR 18 0000  41.0 N  173.0 W  1008         40

Note: The 10-min avg MSW values given in the above table were those
assigned by JMA.  NMCC assigned a peak 10-min avg MSW of 100 kts for
Sudal, and 100 kts was the peak estimated by PAGASA during the four
days the typhoon was within that agency's AOR.  The CWB of Taiwan's
peak 10-min avg MSW was 85 kts--the same as Japan's.  HKO estimated
Sudal's peak MSW at 95 kts, but that agency did not issue real-time
warnings on the cyclone as it remained outside their AOR.  The HKO
peak was taken from the "Overview of Tropical Cyclones in April 2004"
written by the agency.  (A special thanks to Huang Chunliang for
compiling and sending the peak MSW information from the Asian TCWCs.)

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NORTHEAST AUSTRALIA/CORAL SEA (AUE) - Longitude 135E to 160E


                        Sources of Information
                        ----------------------

     The track coordinates as well as the central pressure and 10-minute
  average maximum sustained wind estimates were obtained from warnings
  issued by the Tropical Cyclone Warning Centres at Darwin, Northern
  Territory; Brisbane, Queensland; and Port Moresby, Papua New Guinea.
  The 1-minute average maximum sustained wind estimates were taken from
  warnings issued by the Joint Typhoon Warning Center (JTWC) of the U. S.
  Air Force and Navy, located at Pearl Harbor, Hawaii.    The center
  position coordinates from JTWC were compared with those from the
  Australian centres and annotations made in the Remarks column when the
  differences in general amounted to 40-50 nm or more.


                            Systems Tracked
                            ---------------

   Tropical LOW (13F)                                  10 - 20 Apr

*************************************************************************

Storm Name: None                  Cyclone Number: None    Basin: AUE/SPA
Fiji Tropical Disturbance Number: 13F

   Date   Time   Lat      Lon    Cent  MSW   MSW        Remarks
          (GMT)                 Press 1-min 10-min
                                 (mb) (kts) (kts)
-------------------------------------------------------------------------

04 APR 10 0000   8.0 S  156.0 E               30  Brisbane warnings
04 APR 10 0600   8.0 S  156.5 E  1003         30  See Note
04 APR 10 1200   8.5 S  157.0 E  1005         30      
04 APR 10 1800   9.0 S  158.5 E  1004         30
04 APR 11 0000  10.0 S  159.0 E  1004         30
04 APR 11 0600  10.0 S  159.5 E  1002         30
04 APR 11 1200  10.0 S  159.5 E  1004         30
04 APR 11 1800  11.0 S  161.0 E  1004         25
04 APR 11 2100  11.0 S  161.0 E  1004         25  Fiji bulletins
04 APR 12 0530  11.5 S  161.2 E  1003         25
04 APR 12 2100  11.0 S  161.0 E  1002         25
04 APR 13 0200  11.0 S  162.0 E  1004         25  Brisbane TC outlooks
04 APR 15 2100  12.0 S  148.5 E  1004         30  Brisbane warnings
04 APR 16 0130  11.3 S  148.3 E  1007         30
04 APR 16 0600  11.5 S  148.2 E  1006         30
04 APR 16 1200  11.7 S  146.5 E  1008         30
04 APR 16 1800  11.7 S  145.6 E  1007         25
04 APR 17 0400  12.6 S  144.4 E               25  Brisbane TC outlook
04 APR 19 0430  10.5 S  139.2 E  1009         20  Darwin TC outlooks
04 APR 20 0430  10.1 S  138.3 E  1009         20

Note: The initial Brisbane gale warnings forecast that gales would
develop, but apparently they did not actually occur, at least near the
center, as the system was not named.  The final reference to this LOW was
in the Darwin Tropical Cyclone Outlook on 21 April, mentioning a 1009-mb
weak tropical LOW in the Arafura Sea.

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SOUTH PACIFIC (SPA) - South Pacific Ocean East of Longitude 160E


                        Sources of Information
                        ----------------------

     The track coordinates as well as the central pressure and 10-minute
  average maximum sustained wind estimates were obtained from warnings
  issued by the Tropical Cyclone Warning Centres at Nadi, Fiji, and
  Wellington, New Zealand.  The 1-minute average maximum sustained wind
  estimates were taken from warnings issued by the Joint Typhoon Warning
  Center (JTWC) of the U. S. Air Force and Navy, located at Pearl Harbor,
  Hawaii.  The center position coordinates from JTWC were compared with
  those from the Southern Hemisphere centres and annotations made in the
  Remarks column when the differences in general amounted to 40-50 nm
  or more.


                            Systems Tracked
                            ---------------

   Tropical Depression (09F)                           01 - 03 Apr
   Tropical Depression (10F / 22P)                     04 - 09 Apr
   Tropical Depression (12F)                           07 - 12 Apr

*************************************************************************

Storm Name: None                  Cyclone Number: None    Basin: SPA
Fiji Tropical Disturbance Number: 09F

   Date   Time   Lat      Lon    Cent  MSW   MSW        Remarks
          (GMT)                 Press 1-min 10-min
                                 (mb) (kts) (kts)
-------------------------------------------------------------------------

04 APR 01 2100  19.5 S  147.0 W  1004         30  Winds away from centre
04 APR 02 0300  19.8 S  147.0 W  1003         30  Peripheral gales
04 APR 02 0600  18.0 S  145.0 W  1002         30  Relocated
04 APR 02 1200  18.0 S  148.0 W  1000         30  Peripheral gales
04 APR 02 1800  20.0 S  148.0 W  1002         30  See Note
04 APR 03 0000  20.9 S  149.8 W  1002         30  Peripheral gales
04 APR 03 0600  21.5 S  151.5 W  1002         30        "
04 APR 03 1200  21.6 S  151.1 W  1002         30        "
04 APR 03 1800  21.3 S  150.9 W  1002         25

Note: A ship reported winds of 45 kts northwest of the centre at
1200 UTC.

*************************************************************************

Storm Name: None                  Cyclone Number: 22P     Basin: SPA
Fiji Tropical Disturbance Number: 10F

   Date   Time   Lat      Lon    Cent  MSW   MSW        Remarks
          (GMT)                 Press 1-min 10-min
                                 (mb) (kts) (kts)
-------------------------------------------------------------------------

04 APR 04 2100  11.4 S  167.5 E  1003         25
04 APR 05 2100  12.0 S  168.0 E  1002         25
04 APR 06 0800  12.5 S  169.0 E  1000         25
04 APR 06 2100  14.7 S  171.9 E  1000         25
04 APR 07 0800  17.3 S  175.0 E  1001         25
04 APR 07 1800  16.1 S  175.9 E         30        JTWC warning
04 APR 07 2300  17.0 S  177.5 E   995   35    32  JTWC-00Z: 16.8S/176.8E
04 APR 08 0800  18.5 S  179.8 E   996   35    30  JTWC-06Z: 18.1S/178.7E
04 APR 08 1800  19.6 S  179.3 W         35        JTWC warning
04 APR 08 2100  20.8 S  178.6 W   997         30
04 APR 09 0600  22.0 S  178.0 W  1000   25    25  JTWC: 21.5S/177.5W

*************************************************************************

Storm Name: None                  Cyclone Number: None    Basin: SPA
Fiji Tropical Disturbance Number: 12F

   Date   Time   Lat      Lon    Cent  MSW   MSW        Remarks
          (GMT)                 Press 1-min 10-min
                                 (mb) (kts) (kts)
-------------------------------------------------------------------------

04 APR 07 0800  10.5 S  162.0 E  1002         25
04 APR 07 2300  11.0 S  162.0 E  1002         25
04 APR 08 0600  10.0 S  162.0 E  1002         25
04 APR 08 2100  13.0 S  169.5 E  1002         25
04 APR 09 0600  14.0 S  170.0 E  1002         25
04 APR 09 1800  13.5 S  171.0 E  1002         25
04 APR 10 0600  15.5 S  173.5 E  1002         25
04 APR 10 2100  12.5 S  175.5 E  1005         25
04 APR 11 0600  14.5 S  176.8 E  1005         25
04 APR 11 2100  13.4 S  177.8 E  1004         25
04 APR 12 0600  14.5 S  177.8 E  1004         25
04 APR 12 2100  14.5 S  175.3 E  1004         20

*************************************************************************
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             !!!!!!  IMPORTANT NOTE - PLEASE READ  !!!!!!

     To repeat the caveat which is included in the Author's Note
  at the end of the cyclone summaries--the tropical cyclone tracks
  I prepare are based upon the operational warnings/advisories/
  advices/bulletins which are issued by the various tropical cyclone
  warning agencies around the world.   Users of these tracks should
  be aware that they are preliminary and subject to revision during
  post-seasonal analyses of the cyclones by the forecasters and
  analysts at the several warning centers.

     For the Atlantic and Northeast Pacific basins, official tropical
  cyclone reports and "best tracks" can be found at the website of
  the Tropical Prediction Center/National Hurricane Center:

     http://www.nhc.noaa.gov>

     The Joint Typhoon Warning Center's website contains links to their
  Annual Tropical Cyclone Reports which include that agency's "best
  tracks" for tropical cyclones in the Northwest Pacific basin, the
  North Indian Ocean, and the Southern Hemisphere:

     http://199.10.200.33/jtwc.html>


  SPECIAL NOTE:  Back issues of the global tropical cyclone summaries
  and monthly cyclone track files can be obtained at the following
  websites:

    ftp:// ftp.aoml.noaa.gov/hrd/pub/landsea/padgett/>
    http://australiasevereweather.com/cyclones/>
    http://www.typhoon2000.ph>
    http://mpittweather.com>


  PREPARED BY:

  Gary Padgett              garyp@alaweb.com


  SIGNIFICANT CONTRIBUTIONS BY:

  Michael V. Padua          michaelpadua@hotmail.com 
                            webmaster@typhoon2000.ph

  Huang Chunliang           huangchunliang@hotmail.com

*************************************************************************
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Document: trak0404.htm
Updated: 26th December 2006

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