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Southern Hemisphere 2009-2010 Tropical Cyclone Season Review
[Summaries and Track Data] [Prepared by Gary Padgett]

              A REVIEW OF THE 2009-2010 TROPICAL CYCLONE SEASON

                         FOR THE SOUTHERN HEMISPHERE

     Following is a tabular summary of all the tropical depressions
  and tropical cyclones which occurred in the Southern Hemisphere
  between 1 July 2009 and 30 June 2010 as reported in the Monthly
  Global Tropical Cyclone Summaries prepared by the author.

    (1) Number - this is the sequential cyclone number assigned by JTWC
        in Hawaii.

    (2) Name - the name (if any) assigned by the responsible Tropical
        Cyclone Warning Centre.  For systems in the South Indian Ocean
        west of 90E and in the Southwest Pacific east of 160E which were
        unnamed, the alphanumeric designator applied by La Reunion or
        Fiji, respectively, is given in this column.

    (3) Dates - range of dates for which tracking information for the 
        cyclone is available in the Global Tropical Cyclone Tracks files
        prepared by the author.  The dates given in most cases refer to
        the time the system was in warning status and generally do not
        include the pre-depression stages of the disturbance.

    (4) Pressure - Lowest central pressure (either estimated or recorded)
        during the lifetime of the cyclone.  An asterisk (*) following
        the pressure indicates the reading was an actual measured
        pressure.   Central pressure is given in millibars, which is
        numerically equivalent to hectopascals.

    (5) MSW 1-min avg - maximum 1-minute average sustained windspeed in 
        knots as assigned by JTWC.  An asterisk (*) following the MSW
        indicates that it was an actual measured value.

    (6) MSW 10-min avg - maximum 10-minute average sustained windspeed
        in knots as assigned by the responsible Tropical Cyclone Warning
        Centre.  An asterisk (*) following the MSW indicates that it was
        an actual measured value.

    (7) Basins - tropical cyclone basins where the cyclone tracked during
        its life:

        SWI - Southwest Indian Ocean - West of 90E
        AUW - Northwest Australia/Southeast Indian Ocean - 90E to 135E
        AUE - Northeast Australia/Coral Sea - 135E to 160E
        SPA - South Pacific Ocean - East of 160E
        SAT - South Atlantic Ocean

     A number in parentheses (e.g. (1) ) following an entry refers to
  a note following the entries for the given basin.   A separate table
  is given for each of the five Southern Hemisphere basins.

     Abbreviations for Tropical Cyclone Warning Centres:

  JTWC -    Joint Typhoon Warning Center, formerly on Guam, now at
            Pearl Harbor, Hawaii
  MFR -     Meteo France Reunion (RSMC La Reunion)
  RSMC -    Regional Specialised Meteorological Centre

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

                           SOUTHWEST INDIAN OCEAN

 JTWC    NAME                DATES          CENT    MSW   MSW    BASIN
 NUM                                        PRS   1-MIN 10-MIN
                                            (mb)   (kts) (kts)
 ------------------------------------------------------------------------

 ---  (MFR-01)              17-20 Aug        ---     30    25    SWI
 ---  (MFR-03)              07-10 Nov       1002     30    25    SWI
 01S  Anja                  14-20 Nov        950    105    85    SWI (1)
 02S  Bongani               22-25 Nov        997     45    40    SWI
 03S  Cleo                  06-14 Dec        927    115   105    SWI
 05S  David                 13-27 Dec        980     55    55    SWI
 ---  (MFR-09)              15 Jan          1005     --    25    SWI
 11S  (MFR-10)              26-30 Jan        995     35    35    SWI (2)
 13S  Fami                  01-03 Feb        994     40    40    SWI
 16S  Gelane                15-21 Feb        930    125   110    SWI
 18S  Hubert                09-11 Mar        987     35    55    SWI
 21S  Imani                 21-26 Mar        965     70    70    SWI
 ---  Joel                  25-29 May        996     55    60    SWI (4)

 NOTES:

 (1) Operationally, JTWC assigned a peak MSW of 115 kts to Anja, but this
     was reduced to 105 kts in the working "best track" file.

 (2) System was classified as a "subtropical depression".

 (3) The major SWI system of January was Tropical Cyclone Edzani, which
     began in the Australian Region.  For information on this very
     intense cyclone, see the section below.

 (4) System was classified as a "subtropical depression".  The 1-min avg
     MSW for Joel were obtained from satellite intensity estimates as
     JTWC issued no warnings.

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

                NORTHWEST AUSTRALIA / SOUTHEAST INDIAN OCEAN

 JTWC    NAME                DATES          CENT    MSW   MSW    BASIN
 NUM                                        PRS   1-MIN 10-MIN
                                            (mb)   (kts) (kts)
 ------------------------------------------------------------------------

 06S  Laurence              10-24 Dec        927    115   110    AUW
 ---  (02U)                 02-04 Jan        995     --    25    AUW
 07S  Edzani (1)            02-17 Jan        905    135   120    AUW/SWI
 08S  Magda                 19-22 Jan        980     60    60    AUW
 23S  Robyn                 02-11 Apr        976     60    65    AUW/SWI
 24S  Sean                  21-28 Apr        987     55    55    AUW  

 NOTES:

 (1) Edzani began in Perth's AOR where it was numbered as Tropical LOW
     03U.  It was named by the Meteorological Service of Mauritius and
     reached its greatest intensity in the SWI basin.

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

                      NORTHEAST AUSTRALIA / CORAL SEA

 JTWC    NAME                DATES          CENT    MSW   MSW    BASIN
 NUM                                        PRS   1-MIN 10-MIN
                                            (mb)   (kts) (kts)
 ------------------------------------------------------------------------

 ---  Neville               15-22 Jan        994     --    35    AUE
 09P  Olga                  22-30 Jan        983     50    55    AUE
 22P  Paul                  26 Mar-01 Apr    982     60    55    AUE 

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

                             SOUTH PACIFIC OCEAN

 JTWC    NAME                DATES          CENT    MSW   MSW    BASIN
 NUM                                        PRS   1-MIN 10-MIN
                                            (mb)   (kts) (kts)
 ------------------------------------------------------------------------

 04P  Mick                  11-20 Dec       975      65    60    SPA
 ---  (05F)                 25-28 Jan       999      --    25    SPA
 10P  Nisha                 27-30 Jan       990      50    40    SPA
 12P  Oli                   29 Jan-08 Feb   925     115   100    SPA
 ---  (08F)                 02-04 Feb       997      --    30    SPA
 14P  Pat                   06-11 Feb       960      90    75    SPA
 15P  Rene                  09-19 Feb       940     100    90    SPA
 17P  Sarah                 20 Feb-04 Mar   995      35    35    SPA
 19P  Tomas                 09-18 Mar       930     115    95    SPA
 20P  Ului                  09-20 Mar       925     140   115    SPA/AUE
 ---  (15F)                 29 Mar-04 Apr  1003      --    30    SPA (1)
 ---  ----- (Invest 94P)    06-13 May       983      --    50    SPA (2)

 NOTES:

 (1) Some peripheral gales were associated with this system.

 (2) This system was a hybrid LOW which possibly was a subtropical storm.

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

                             SOUTH ATLANTIC OCEAN

 JTWC    NAME                DATES          CENT    MSW   MSW    BASIN
 NUM                                        PRS   1-MIN 10-MIN
                                            (mb)   (kts) (kts)
 ------------------------------------------------------------------------

 ---  Anita                 08-12 Mar      1000      45    --    SAT (1)

 NOTES:

 (1) The name Anita was assigned to this system by several regional 
     weather centers and private weather enterprises of the Brazilian 
     states of Rio Grande do Sul and Santa Catarina.   NRL assgined an 
     invest number of 90Q during the time the system was active.

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

 Prepared by Gary Padgett
 E-mail: garyp@alaweb.com
 Home Phone: 334-222-5327

Document: summ2009-2010.htm
Updated: 7th July 2010

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