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Monthly Global Tropical Cyclone Tracks April 2006
[Summaries and Track Data] [Prepared by Gary Padgett]


               GLOBAL TROPICAL CYCLONE TRACKS - APRIL 2006


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

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NORTH INDIAN OCEAN (NIO) - Bay of Bengal and Arabian Sea

                        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.   Occasionally some information may
  have been gleaned from the daily tropical weather outlooks and other
  bulletins issued by the Indian Meteorological Department (IMD), which
  is the World Meteorological Organization's Regional Specialised Meteor-
  ological Centre for the basin.
 
     The reported maximum sustained winds are based on a 1-minute
  averaging period, which is used by all U. S. civilian and military
  weather services for tropical cyclone warnings.     For synoptic
  observations in the North Indian Ocean region, both 10-minute and
  3-minute average winds are employed, but IMD makes no attempt to
  modify the Dvorak scale for estimating tropical cyclone intensity;
  hence, a 1-minute average MSW is implied.


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

   Very Severe Cyclonic Storm MALA (BOB0601 / 02B)     24 - 29 Apr
                                                     
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Storm Name: MALA                  Cyclone Number: 02B     Basin: NIO
IMD Cyclonic Storm Number: BOB0601

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

06 APR 24 1200   8.3 N   90.9 E         25
06 APR 24 1800   8.9 N   89.6 E         35
06 APR 25 0000   9.1 N   88.9 E         35
06 APR 25 0600  10.0 N   89.6 E         35
06 APR 25 1200  10.4 N   90.0 E         40
06 APR 25 1800  10.5 N   89.6 E         45
06 APR 26 0600  10.7 N   90.8 E         45
06 APR 26 1200  11.9 N   90.7 E         45
06 APR 26 1800  12.1 N   90.7 E         45
06 APR 27 0000  12.4 N   90.2 E         60
06 APR 27 0600  12.7 N   89.8 E         70
06 APR 27 1200  12.7 N   90.5 E         75
06 APR 27 1800  13.3 N   90.8 E         80
06 APR 28 0000  14.3 N   91.6 E         90
06 APR 28 0600  14.8 N   92.1 E        115
06 APR 28 1200  15.5 N   92.8 E        125
06 APR 28 1800  16.3 N   93.3 E        115
06 APR 29 0000  17.0 N   93.7 E        110
06 APR 29 0600  17.7 N   94.5 E        100
06 APR 29 1200  18.6 N   95.3 E         65        Inland
06 APR 29 1800  19.8 N   97.0 E         35

Note: The starting point for the above track was JTWC's 12-hourly
warnings, issued at 0600 and 1800 UTC, beginning at 24/1800 UTC, plus
extra warnings issued at 26/1200 and 29/1200 UTC.  For the other 1200
UTC times, plus all the 0000 UTC points, I utilized the satellite
bulletins from JTWC and AFWA, issued at 1130 and 2330 UTC.  There is
no track point for 26/0000 UTC as I did not have the satellite bulletins
saved.  I did have a warning at that time from IMD which placed Mala's
center at 10.4N/89.0E, but did not include it as the trend of JTWC's
positions at that time was eastward, and including the IMD position
would make a westward jog which I did not feel was real.  One additional
thing--there was no warning issued at the peak intensity time of
28/1200 UTC.  However, both JTWC and AFWA assigned Dvorak ratings of
T6.5/6.5 at that hour, so it seems likely that Mala reached a peak
intensity of 125 kts about that time.

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SOUTHWEST INDIAN OCEAN (SWI) - South Indian Ocean West of Longitude 90E


                         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 Meteo France's Tropical Cyclone Warning Centre on Reunion
  Island (MFR), which is the World Meteorological Organization's Regional
  Specialised Meteorological Centre for the basin.  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 MFR and annotations made in the
  Remarks column when the differences in general amounted to 40-50 nm
  or more.


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

   Tropical Storm ELIA (MFR-13 / 22S)                  06 - 16 Apr

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

Storm Name: ELIA                  Cyclone Number: 22S     Basin: SWI/AUW
MFR Tropical Disturbance Number: 13

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

06 APR 06 0000   7.5 S   87.5 E  1004         20  Locally 25 kts
06 APR 06 1200   7.4 S   85.0 E  1004         20         "
06 APR 07 0000   6.8 S   86.0 E  1004         20         "
06 APR 08 0600   8.6 S   91.4 E         30        AFWA: 9.5S/91.7E
06 APR 08 1200   8.2 S   94.0 E         30        Relocated
06 APR 09 0600   9.0 S   96.0 E         30
06 APR 09 1200   9.2 S   96.2 E         30
06 APR 09 1800   8.7 S   94.9 E         30
06 APR 10 0000   8.9 S   94.5 E         30
06 APR 10 0600   9.8 S   94.8 E         30
06 APR 10 1200  10.1 S   95.3 E         30
06 APR 10 1800  11.0 S   95.0 E         30        AFWA: 10.0S/95.1E
06 APR 11 0000  11.2 S   94.0 E         35
06 APR 11 0600  11.1 S   93.6 E         35
06 APR 11 1200  11.1 S   93.1 E         35        AFWA: 10.6S/92.8E
06 APR 11 1800  11.0 S   92.0 E  1002         30  Perth bulletin
06 APR 12 0300  12.2 S   90.8 E   996         30        "
06 APR 12 1200  13.2 S   90.2 E         35        JTWC warning
06 APR 12 1800  13.1 S   90.0 E   998         30
06 APR 13 0000  13.1 S   90.0 E   998   40    30  JTWC: 13.6S/89.9E
06 APR 13 0600  13.3 S   89.6 E   997         30  Locally 35 kts S semi
06 APR 13 1200  13.4 S   89.5 E   995   45    35
06 APR 13 1800  13.2 S   89.3 E   995         35
06 APR 14 0000  13.6 S   88.6 E   995   45    35  JTWC: 13.5S/89.0E
06 APR 14 0600  14.4 S   88.2 E   987         45
06 APR 14 1200  14.5 S   88.0 E   987   55    45
06 APR 14 1800  14.9 S   87.9 E   987         45
06 APR 15 0000  15.1 S   86.8 E   990   45    40
06 APR 15 0600  15.0 S   86.2 E   994         35
06 APR 15 1200  15.6 S   85.2 E   994         35
06 APR 15 1800  15.9 S   84.9 E   994         35
06 APR 16 0000  16.5 S   84.4 E   994         35
06 APR 16 0600  17.4 S   83.4 E   999         25  Locally 30 kts S semi
06 APR 16 1200  17.8 S   82.7 E  1000         25

Note: There is a slight possibility that Tropical Storm Elia was a
redevelopment of a tropical LOW tracked in the Perth region on 
26-27 March, but I did not have enough information to make a certain 
connection; hence, I have treated Elia as a separate entity.   The data
points in the above track between 08/0600 and 11/1200 UTC, inclusive,
were taken from JTWC's satellite fix bulletins as no agency was issuing
warnings on the system during that time.

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NORTHWEST AUSTRALIA/SOUTHEAST INDIAN OCEAN (AUW) - Longitude 90E to 135E


                        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 Perth, Western
  Australia, and Darwin, Northern Territory.    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 Cyclone HUBERT (21S)                       04 - 07 Apr

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

Storm Name: HUBERT                Cyclone Number: 21S     Basin: AUW
(Name assigned by Perth TCWC)

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

06 APR 04 0300  13.9 S  114.8 E   998         25
06 APR 04 0600  14.1 S  115.4 E   998         30
06 APR 04 1200  14.5 S  115.2 E   998         30
06 APR 04 1800  14.6 S  115.3 E   998         30
06 APR 05 0000  15.5 S  116.5 E   994         30
06 APR 05 0600  16.3 S  116.5 E   992   40    30
06 APR 05 1200  17.0 S  116.3 E   988   45    35
06 APR 05 1800  17.4 S  115.8 E   988   55    35  JTWC: 17.9S/115.4E
06 APR 06 0000  17.6 S  115.9 E   986   55    40  JTWC: 18.1S/115.7E
06 APR 06 0600  18.3 S  115.6 E   982   55    45
06 APR 06 1200  19.0 S  115.2 E   978   55    50
06 APR 06 1800  19.7 S  115.0 E   975   55    50
06 APR 07 0000  19.9 S  114.9 E   970   55    55  JTWC: 20.4S/115.1E
06 APR 07 0600  20.4 S  114.7 E   978   55    50
06 APR 07 1200  21.4 S  115.4 E   990   45    40
06 APR 07 1500  21.5 S  115.5 E   996         33  Final BoM warning
06 APR 07 1800  21.7 S  115.7 E         30        JTWC warning/Inland

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

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
                            ---------------

   Severe Tropical Cyclone MONICA (23P)                16 - 26 Apr

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

Storm Name: MONICA                Cyclone Number: 23P     Basin: AUE/AUW
(Name assigned by Brisbane TCWC)

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

06 APR 16 1130   9.5 S  151.4 E         25    25  JTWC satellite bulletin
06 APR 16 1800  10.9 S  150.5 E         30    30              "
06 APR 17 0000  12.4 S  150.0 E   995   35    40
06 APR 17 0600  12.5 S  149.6 E   995         40
06 APR 17 1200  12.6 S  149.4 E   990   55    45
06 APR 17 1800  12.6 S  148.5 E   985         50
06 APR 18 0000  12.9 S  147.8 E   980   60    60
06 APR 18 0600  13.5 S  146.6 E   975         60
06 APR 18 1200  13.0 S  145.6 E   970   70    70
06 APR 18 1800  12.9 S  144.8 E   965         80
06 APR 19 0000  12.9 S  144.3 E   960   85    80
06 APR 19 0600  13.1 S  143.4 E   960         75
06 APR 19 1200  13.6 S  142.6 E   965   80    70  Over Cape York Penin.
06 APR 19 1800  13.7 S  142.0 E   980         55
06 APR 20 0000  13.6 S  141.5 E   985   60    50  In Gulf of Carpentaria
06 APR 20 0600  14.0 S  140.7 E   980         55
06 APR 20 1200  13.8 S  140.4 E   980   65    55
06 APR 20 1800  13.6 S  140.2 E   960         75
06 APR 21 0000  13.4 S  140.0 E   960   90    75
06 APR 21 0600  13.2 S  139.9 E   950         90
06 APR 21 1200  13.1 S  139.7 E   945  100    95
06 APR 21 1800  12.8 S  139.5 E   945         95
06 APR 22 0000  12.6 S  139.4 E   945  115   100
06 APR 22 0600  12.4 S  139.2 E   935        110
06 APR 22 1200  12.1 S  138.7 E   925  125   125
06 APR 22 1800  11.7 S  138.5 E   925        125
06 APR 23 0000  11.4 S  138.0 E   925  140   125
06 APR 23 0600  11.4 S  137.4 E   905        135
06 APR 23 1200  11.3 S  136.7 E   905  145   135
06 APR 23 1800  11.3 S  135.8 E   910        135
06 APR 24 0000  11.4 S  135.2 E   915  155   135
06 APR 24 0600  11.7 S  134.4 E   915  155   135
06 APR 24 1200  12.0 S  133.7 E   935        100  Inland
06 APR 24 1800  12.7 S  132.7 E   980   40    50
06 APR 25 0000  12.6 S  131.4 E   990         35
06 APR 25 0600  12.3 S  130.7 E   998         30  Near coast
06 APR 25 1200  12.3 S  130.5 E   998         30  
06 APR 25 1800  12.7 S  130.2 E   995         30
06 APR 26 0000  13.2 S  129.9 E  1000         25
06 APR 26 0600  13.6 S  129.4 E  1001         20

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

             !!!!!!  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>
    http://www.tropicalcyclone2005.com/>


  PREPARED BY:

  Gary Padgett              garyp@alaweb.com


  SIGNIFICANT CONTRIBUTIONS BY:

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

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Document: trak0604.htm
Updated: 5th May 2006

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