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Monthly Global Tropical Cyclone Tracks April 2007
[Summaries and Track Data] [Prepared by Gary Padgett]

               GLOBAL TROPICAL CYCLONE TRACKS - APRIL 2007

          !!!! 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 special thanks to Michael for his efforts.


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

   Typhoon Kong-rey (01W / 0701)                       31 Mar - 07 Apr

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Storm Name: KONG-REY              Cyclone Number: 01W     Basin: NWP
PAGASA Internal Name: None        JMA Tropical Storm Number: 0701

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

07 MAR 31 0000   7.0 N  157.0 E  1004         25  JMA bulletins
07 MAR 31 0600   7.1 N  156.6 E  1002         30
07 MAR 31 1200   7.5 N  155.1 E  1004   25    30
07 MAR 31 1800   8.3 N  154.1 E  1000   35    35
07 APR 01 0000   9.4 N  152.9 E   996   45    40
07 APR 01 0600  10.2 N  152.1 E   996   45    40
07 APR 01 1200  10.4 N  151.4 E   990   55    45
07 APR 01 1800  10.9 N  150.7 E   985   60    50
07 APR 02 0000  11.8 N  149.6 E   985   65    50
07 APR 02 0600  13.4 N  148.9 E   985   65    50
07 APR 02 1200  14.3 N  147.8 E   985   65    50
07 APR 02 1800  14.9 N  146.8 E   980   65    55
07 APR 03 0000  16.2 N  145.8 E   975   75    55  MSW from WFO Guam
07 APR 03 0600  16.9 N  144.7 E   970   75    65          "
07 APR 03 1200  17.7 N  144.3 E   960   90    75
07 APR 03 1800  18.9 N  144.1 E   960   90    75
07 APR 04 0000  19.7 N  144.3 E   965   75    70
07 APR 04 0600  21.1 N  145.2 E   970   65    65  JMA: 20.8N/144.9E
07 APR 04 1200  22.2 N  146.8 E   975   55    60  JMA: 21.6N/145.9E
07 APR 04 1800  23.7 N  148.2 E   980   55    55  JMA: 22.3N/146.9E
07 APR 05 0000  24.1 N  150.2 E   985   40    55  JMA: 23.8N/149.9E
07 APR 05 0600  25.1 N  152.5 E   992         45  JMA warnings
07 APR 05 1200  25.9 N  155.0 E   996         40
07 APR 05 1800  26.7 N  157.2 E   998         35
07 APR 06 0000  27.0 N  160.0 E  1004         40  Extratropical
07 APR 06 0600  27.0 N  163.0 E  1008         35
07 APR 06 1200  28.0 N  166.0 E  1012         25
07 APR 06 1800  28.0 N  169.0 E  1012         25
07 APR 07 0000  27.0 N  169.0 E  1014         20

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

   Subtropical Storm (MFR-15)                          09 - 12 Apr

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Storm Name: None                  Cyclone Number: None    Basin: SWI
MFR Tropical Disturbance Number: 15  (System was subtropical in nature)

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

07 APR 09 1200  21.7 S   36.9 E               20  Zone of disturbed WX
07 APR 09 1800  22.0 S   38.0 E               20            "
07 APR 10 0000  22.4 S   39.0 E               20            "
07 APR 10 0600  23.2 S   39.7 E               25  Tropical disturbance
07 APR 10 1200  23.8 S   40.1 E               25            "
07 APR 10 1800  25.3 S   40.0 E               30  Tropical depression
07 APR 11 0000  27.0 S   39.7 E               35  Subtropical depression
07 APR 11 0600  28.3 S   39.3 E               40            "
07 APR 11 1200  29.7 S   39.6 E   998         45  MFR Warning #1
07 APR 11 1800  31.2 S   40.5 E               45 
07 APR 12 0000  32.6 S   41.8 E   998         40  MFR Warning #2
07 APR 12 0600  34.0 S   43.6 E  1000         40  MFR Warning #3
07 APR 12 1200  36.0 S   46.0 E  1000         40  Extratropical/Wrng #4

Note: Only four warnings were issued on this system by MFR.  However, on
that agency's website, a table of the date, time, coordinates and classi-
fication were available, and the above track is based on this.  Prior to
11/1200 UTC all the MSW estimates are my own, based on the assigned
classification category, which is annotated in the Remarks column.  Given
the date and location of formation, there was some question if this
system could be a re-incarnation of former TC Jaya, but according to 
Philippe Caroff, based on their analysis, this does not appear to be the 
case.

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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 Cyclone CLIFF (14F / 23P)                  03 - 06 Apr

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Storm Name: CLIFF                 Cyclone Number: 23P     Basin: SPA
Fiji Tropical Disturbance Number: 14F

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

07 APR 03 0600  14.7 S  176.5 E  1004         25
07 APR 03 1800  15.2 S  178.1 E  1002         30
07 APR 04 0000  16.0 S  180.0 E  1000         30
07 APR 04 0300  16.8 S  179.6 W   995         40
07 APR 04 0600  17.2 S  179.4 W   995   35    40
07 APR 04 1200  17.8 S  179.0 W   990         40
07 APR 04 1800  18.7 S  178.1 W   990   40    40
07 APR 05 0000  20.0 S  177.7 W   987         45
07 APR 05 0600  21.2 S  177.3 W   980   50    50  MSW 50 kts at 0200Z
07 APR 05 1200  22.6 S  176.5 W   980         50
07 APR 05 1800  23.3 S  175.6 W   980   55    50  JTWC: 23.5S/175.0W
07 APR 06 0000  25.0 S  173.5 W   985         50  Wellington warnings
07 APR 06 0600  26.2 S  171.5 W   987   40    45
07 APR 06 1200  26.3 S  168.1 W   995         35  Extratropical
07 APR 06 1800  28.4 S  167.1 W   998         35

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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:

     https://metocph.nmci.navy.mil/jtwc.php>


  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              [email protected]


  SIGNIFICANT CONTRIBUTIONS BY:

  Michael V. Padua          [email protected] 
                            [email protected]

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Document: trak0704.htm
Updated: 4th May 2007

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