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Monthly Global Tropical Cyclone Tracks December 2000
[Summaries and Track Data] [Prepared by Gary Padgett]

           GLOBAL TROPICAL CYCLONE TRACKS - DECEMBER 2000


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

     It has been brought to my attention that I should repeat in the
  cyclone tracks file the caveat which is included in the Author's
  Note at the end of the cyclone summaries.   The tropical cyclone
  tracks which I prepare are based upon the operational warnings/
  advisories/advices/bulletins from 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>

     In the near future I shall contact the other tropical warning
  centers to see if I can locate any links to sites where their "best
  tracks" might be archived.

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

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

NOTE:  The tracking information for Northwest Pacific Basin tropical
       cyclones is based primarily upon operational warnings from the
       Joint Typhoon Warning Center of the U.S. Air Force and Navy at
       Pearl Harbor, Hawaii. Comparisons were made with track coordinates
       given in advisories from the meteorological services of Japan
       (JMA) and the Philippines (PAGASA).  In general, whenever the
       center position differed by more than 40-50 nm from JTWC's, an
       entry was made in the Remarks column.

       The 1-min avg MSW were taken from the JTWC advisories while the
       10-min avg MSW were obtained from PAGASA's advisories if the
       storm were in PAGASA's area of responsibility; otherwise, they
       were gleaned from JMA's advisories or high seas forecasts.  In
       a few cases the 10-min MSW given by PAGASA and JMA did not agree;
       in those cases I reported the higher value.    The estimates of
       central pressure were obtained from JMA's advisories.

       Michael V. Padua, owner of the Typhoon 2000 webpage sent me the 
       PAGASA and JMA tracks for these systems--a special thanks to 
       Michael for his assistance.


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

   Tropical Depression ULPIANG                         06 - 08 Dec
   Typhoon SOULIK (34W / 0023 / WELPRING)              28 Dec - 05 Jan

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

Storm Name: None (from JMA)       Cyclone Number: None    Basin: NWP
PAGASA Internal Name: ULPIANG     JMA Tropical Storm Number: None

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

00 DEC 06 0600  11.4 N  128.7 E  1003         30  See Note
00 DEC 06 1200  11.5 N  127.7 E               30
00 DEC 06 1800  11.5 N  127.0 E               30
00 DEC 07 0000  11.9 N  126.3 E               30
00 DEC 07 0600  11.8 N  124.0 E               30  In Central Philippines
00 DEC 07 1200  12.5 N  122.6 E               25            "
00 DEC 07 1800  12.5 N  122.5 E               25            "
00 DEC 08 0000  12.5 N  121.4 E               20            "

Note: The track of this depression is taken completely from bulletins
issued by PAGASA and forwarded to me by Michael Padua.  The one CP entry
at 06/0600 UTC was taken from a SWTO issued by JTWC.  However, that
Outlook placed a fully-exposed LLCC at 10.4N, 131.9E--almost 200 nm
east of the position given in the track above.

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

Storm Name: SOULIK                Cyclone Number: 34W     Basin: NWP
PAGASA Internal Name: WELPRING    JMA Tropical Storm Number: 0023

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

00 DEC 28 1800   7.0 N  129.0 E  1002         25  JMA Position
00 DEC 29 0000   7.4 N  130.3 E  1004   25    30  JMA: 8.0 N, 129.0 E
00 DEC 29 0600   9.0 N  130.2 E  1000   25    30
00 DEC 29 1200   9.6 N  130.1 E  1000   30    30  JMA: 10.9 N, 129.6 E
00 DEC 29 1800  10.0 N  129.2 E   998   30    30  JMA: 11.0 N, 128.4 E
00 DEC 30 0000  10.4 N  128.6 E   994   35    35  JMA: 10.4 N, 127.4 E
00 DEC 30 0600  10.9 N  127.4 E   992   35    40
00 DEC 30 1200  11.3 N  127.0 E   990   45    45
00 DEC 30 1800  12.2 N  127.8 E   990   50    45  JMA: 11.5 N, 127.5 E
00 DEC 31 0000  12.5 N  128.0 E   990   55    50  JMA: 10.5 N, 127.8 E
00 DEC 31 0600  13.5 N  128.7 E   990   55    50  JMA: 12.6 N, 127.9 E
00 DEC 31 1200  13.8 N  129.6 E   990   55    50  
00 DEC 31 1800  14.6 N  130.5 E   985   55    50
01 JAN 01 0000  14.8 N  131.8 E   985   55    50
01 JAN 01 0600  15.2 N  132.4 E   985   55    50
01 JAN 01 1200  15.7 N  133.3 E   985   55    50
01 JAN 01 1800  15.1 N  134.1 E   985   55    50
01 JAN 02 0000  15.5 N  134.6 E   985   55    50  
01 JAN 02 0600  15.9 N  134.7 E   990   45    45
01 JAN 02 1200  16.1 N  134.9 E   990   45    45
01 JAN 02 1800  16.7 N  135.0 E   990   45    45
01 JAN 03 0000  17.2 N  135.1 E   985   55    50
01 JAN 03 0600  17.5 N  135.6 E   975  105    60
01 JAN 03 1200  17.9 N  135.9 E   955  115    75
01 JAN 03 1800  18.1 N  136.2 E   945  115    80
01 JAN 04 0000  18.3 N  136.6 E   950  100    75
01 JAN 04 0600  18.4 N  136.9 E   965   90    65
01 JAN 04 1200  18.3 N  137.1 E   985   65    50
01 JAN 04 1800  18.0 N  137.5 E   990   50    45
01 JAN 05 0000  15.5 N  135.9 E  1004   25    25  Relocated - Final Wrng

Note:  Some PAGASA positions are:

   28/1800 UTC -  8.0 N, 130.0 E
   29/0000 UTC -  8.3 N, 130.0 E
   29/0600 UTC -  8.3 N, 129.8 E
   29/1200 UTC -  8.4 N, 129.6 E

After 29/1200 UTC PAGASA positions were generally quite close to either
JTWC's or JMA's coordinates.   The final JMA position, at 05/0000 UTC,
was 18.0 N, 138.2 E.   The final JTWC coordinates, as annotated above,
represent a severe relocation from the previous warning position, based
no doubt upon the first visible pictures of the day.    The JMV file
prepared by JTWC contains revised center coordinates and MSW estimates
for the next-to-last two entries:

   04/1200 UTC - 17.5 N, 136.8 E - 55 kts
   04/1800 UTC - 16.5 N, 136.3 E - 40 kts

There likely are other differences between JTWC's operational track and
the post-storm JMV file (sent to me by Michael Padua), but I included
these points because of the drastic changes made for these parameters
at the 1200 and 1800 UTC analysis times.

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

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

NOTE:  The tracking and intensity information for North Indian Ocean
       Basin tropical cyclones is based upon operational warnings from
       the Joint Typhoon Warning Center of the U.S. Air Force and Navy
       at Pearl Harbor, Hawaii.  The MSW are based on a 1-min averaging
       period, which is used by all U.S. civilian and military weather
       services for tropical cyclone warnings.   Some information was
       also obtained from the Indian Meteorological Department (IMD).


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

   Tropical Cyclone (04B)                              25 - 28 Dec

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

Storm Name: None                  Cyclone Number: 04B     Basin: NIO


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

00 DEC 25 0600   8.2 N   83.7 E         40
00 DEC 25 1800   8.4 N   83.5 E         55
00 DEC 26 0600   8.5 N   82.0 E         65        Near Sri Lankan coast
00 DEC 26 1200   8.5 N   81.0 E         65        IMD Position
00 DEC 26 1800   8.5 N   80.2 E         55        Over Sri Lanka
00 DEC 27 0600   7.9 N   79.4 E         50        IMD: 65 kts at 0300Z
00 DEC 27 1200   8.5 N   78.5 E                   IMD Position
00 DEC 27 1800   8.1 N   78.3 E         45
00 DEC 28 0000   8.5 N   77.5 E                   IMD Position
00 DEC 28 0600   8.4 N   77.8 E         35        Over southern India
00 DEC 28 1800   8.6 N   77.3 E         25

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

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

NOTE:  The tracking information presented below was obtained from
       operational warnings issued by the Tropical Cyclone Warning
       Centres at Perth, Western Australia, and at Darwin, Northern
       Territory.


                               Systems Tracked
                               ---------------
   
   Severe Tropical Cyclone SAM (03S)                   03 - 10 Dec

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

Storm Name: SAM                   Cyclone Number: 03S     Basin: AUW

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

00 DEC 02 0600  10.5 S   127.0 E 1000         30  Darwin TC Advices
00 DEC 02 1200  10.5 S   126.5 E 1000         30
00 DEC 02 1800  11.0 S   126.5 E  999         30
00 DEC 03 0000  12.0 S   127.0 E  999         30
00 DEC 03 0600  13.0 S   127.0 E  999         30  Darwin Gale Warnings
00 DEC 03 1200  12.5 S   128.4 E  998         30
00 DEC 03 1800  13.8 S   128.0 E  997         30  Relocated
00 DEC 04 0000  14.0 S   127.5 E  997         30
00 DEC 04 0600  15.0 S   126.5 E  995         30
00 DEC 04 1200  16.0 S   125.2 E  996         30  Over land
00 DEC 04 1800  14.7 S   125.1 E  995   25    30  Relocated/Over water
00 DEC 04 2200  14.7 S   124.8 E  995   35    30  Perth Warnings
00 DEC 05 0400  14.3 S   124.3 E  993         45
00 DEC 05 1000  14.4 S   123.6 E  990   35    45
00 DEC 05 1600  14.5 S   123.2 E  985         45
00 DEC 05 2200  14.8 S   122.4 E  980   45    55
00 DEC 06 0400  14.7 S   121.8 E  975         55
00 DEC 06 1000  15.2 S   121.5 E  975   55    50
00 DEC 06 1600  15.7 S   121.2 E  975         50
00 DEC 06 2200  16.7 S   121.7 E  980   65    60
00 DEC 07 0400  17.1 S   121.4 E  970         70
00 DEC 07 1000  17.7 S   121.1 E  960   85    75
00 DEC 07 1600  17.8 S   120.8 E  930  115    95
00 DEC 07 2200  17.9 S   120.8 E  925        105        
00 DEC 08 0400  18.1 S   121.0 E  925  125   105
00 DEC 08 1000  18.6 S   121.5 E  925  125   105
00 DEC 08 1600  19.2 S   121.7 E  925  100   105  Eye moving inland
00 DEC 08 2200  19.5 S   122.2 E  960         75  Center over land
00 DEC 09 0400  20.1 S   122.7 E  975   65    60
00 DEC 09 1000  20.6 S   123.3 E  984         50
00 DEC 09 1300  20.9 S   123.5 E  988         40
00 DEC 10 0000  21.3 S   124.5 E  992         40
00 DEC 10 0600  21.6 S   124.9 E  995         35
00 DEC 10 1200  21.7 S   125.2 E  996         35

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

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

NOTE:  The tracking information presented below was obtained from
       operational warnings issued by the Tropical Cyclone Warning
       Centres at Brisbane, Queensland, and at Darwin, Northern
       Territory.


                               Systems Tracked
                               ---------------
   
   Tropical LOW                                        04 - 06 Dec

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

Storm Name: None                  Cyclone Number: None    Basin: AUE
(Tropical LOW in the Gulf of Carpentaria)

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

00 DEC 04 2000  10.9 S  143.1 E  1002   25        JTWC Trop. WX Outlook
00 DEC 05 0400  12.5 S  141.0 E  1002         30  Brisbane Warnings
00 DEC 05 0700  13.0 S  139.5 E  1001         30
00 DEC 05 1300  13.5 S  139.5 E  1001         30
00 DEC 05 1930  15.0 S  137.0 E   999         30  Darwin Warnings
00 DEC 06 0130  15.2 S  135.5 E  1001         30  Moving inland
00 DEC 06 0430  15.5 S  135.3 E  1002             Darwin Trop. WX Outlook

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

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

NOTE:  The tracking and intensity information for Southwest Pacific
       Basin tropical cyclones was taken from real-time operational
       warnings issued by the Nadi TCWC, Fiji for positions north of
       25S and from the Wellington, New Zealand office for positions
       south of 25S.  Warnings from JTWC were utilized for the purpose
       of making comparisons and for supplying information for times
       when the Nadi or Wellington warnings were unavailable.   The
       10-min avg MSW values were taken from the Fiji or New Zealand
       warnings while the 1-min avg MSW values were obtained from the
       JTWC warnings.  (NOTE: No warnings were issued by JTWC for the
       two depressions tracked below.)


                               Systems Tracked
                               ---------------
   
   Tropical Depression (01F)                           11 - 15 Dec
   Tropical Depression (03F)                           18 - 19 Dec
           
*************************************************************************

Storm Name: None                  Cyclone Number: None    Basin: SPA
Fiji Tropical Disturbance Number: 01F

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

00 DEC 11 2100  17.5 S  174.5 E   998         30
00 DEC 12 0000  18.0 S  175.8 E   998         30
00 DEC 12 2100  21.7 S  176.3 E   998         30
00 DEC 14 0000  23.0 S  170.0 W   993         35  See Note
00 DEC 14 0600  24.0 S  169.0 W   993         35
00 DEC 14 1200  23.0 S  168.0 W   998         35
00 DEC 14 1800  23.0 S  169.0 W   998         35
00 DEC 15 0600  22.5 S  170.0 W  1001         35
00 DEC 15 1200  22.5 S  170.0 W  1001         35

Note: The Tropical Disturbance Summary issued at 12/2100 UTC was intended
to be the final one on this system as the depression was moving rapidly
southeastward into an area of increasing shear and cooler SSTs.  The LOW
subsequently reached the vicinity of 170W and became quasi-stationary for
a couple of days.  The gales occurred over an extensive area mainly along
the southern periphery of the system.     All the gale warnings from
14/0600 UTC onward did not refer to the depression as a "tropical"
depression, thereby implying that it was likely more of a hybrid system.

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

Storm Name: None                  Cyclone Number: None    Basin: SPA
Fiji Tropical Disturbance Number: 03F

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

00 DEC 18 0600  22.0 S  136.0 W   998         30
00 DEC 18 1200  24.0 S  135.0 W   997         30
00 DEC 18 2100  23.5 S  132.0 W   997         30
00 DEC 19 0000  24.0 S  129.5 W   995         35  See Note
00 DEC 19 0600  24.0 S  127.0 W   995         35
00 DEC 19 1200  25.0 S  125.0 W   995         35

Note: The gales associated with this depression were occurring well north
and east of the center.  In WMO Region 5 (Australia/South Pacific), by
definition, to be named as a tropical cyclone a depression must have
gales more or less surrounding the center.  Some of the gale warnings for
this depression did not contain the word "tropical", so it also may have
been somewhat hybrid in character: its location certainly suggests this.

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

Document: trak0012.htm
Updated: 29th December 2006

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