GLOBAL TROPICAL CYCLONE TRACKS - APRIL 2010 !!!! IMPORTANT -- PLEASE SEE INFORMATION AT END OF FILE !!!! ************************************************************************* ******************** EXTRA FEATURE ******************** QUARTERLY REVIEW OF GLOBAL TROPICAL CYCLONE ACTIVITY JANUARY - MARCH, 2010 Ever since I began issuing the monthly tropical cyclone tracks files and the former tropical cyclone summaries in late 1997, I have issued annual reviews of all tropical systems which I had tracked, one for each hemisphere's respective tropical cyclone year. I plan to start including similar reviews for each three-month period as an addendum to the cyclone tracks file. For a full explanation of all the parameters included, see the most recent yearly reviews: (A number in parentheses indicates a note following the table for that basin's section. Also, note that the systems referenced here include only those for which tracks were included in the monthly cyclone tracks file.) ********** NORTHERN HEMISPHERE ********** ATLANTIC BASIN NUM NAME DATES CENT PRS MSW BASIN (mb) (kts) ------------------------------------------------------------------------ -- ----- 30 Jan-04 Feb 991 -- ATL (1) NOTES: (1) This system was a non-tropical LOW which exhibited some features of a subtropical cyclone. While exhibiting some well-organized convection at one point, it also appeared to be connected to a frontal boundary and is not likely to be added to the "best tracks" file as a subtropical storm. (The track for this system can be found in the March tracks file.) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ NORTHWEST PACFICIC BASIN JTWC NAME(S) JMA DATES CENT MSW MSW BASIN NUM TROP STM PRS 1-MIN 10-MIN NUM (mb) (kts) (kts) ------------------------------------------------------------------------ 01W ----- ---- 18-20 Jan 1006 30 25 NWP 02W Omais/Agaton 1001 21-27 Mar 998 50 35 NWP +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ********** SOUTHERN HEMISPHERE ********** SOUTHWEST INDIAN OCEAN JTWC NAME DATES CENT MSW MSW BASIN NUM PRS 1-MIN 10-MIN (mb) (kts) (kts) ------------------------------------------------------------------------ --- (MFR-09) 15 Jan 1005 -- 25 SWI 11S (MFR-10) 26-30 Jan 995 35 35 SWI (1) 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 NOTES: (1) System was classified as a "subtropical depression". (2) 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. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ NORTHWEST AUSTRALIA / SOUTHEAST INDIAN OCEAN JTWC NAME DATES CENT MSW MSW BASIN NUM PRS 1-MIN 10-MIN (mb) (kts) (kts) ------------------------------------------------------------------------ --- (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 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) ------------------------------------------------------------------------ --- (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) NOTES: (1) Some peripheral gales were associated with this system. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 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. ************************************************************************* ************************************************************************* 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. Following is the link to the Wikipedia page for the 2009-2010 Australian Region Cyclone Season: Systems Tracked --------------- Tropical Cyclone ROBYN (12U / 23S) 02 - 11 Apr Tropical Cyclone SEAN (13U / 24S) 21 - 28 Apr ************************************************************************* Storm Name: ROBYN Cyclone Number: 23S Basin: AUW Australian Tropical Low: 12U (Name assigned by Perth TCWC) Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 APR 02 0600 11.0 S 92.3 E 1000 35 30 10 APR 02 1200 11.6 S 92.3 E 1000 30 10 APR 02 1800 12.2 S 92.3 E 1000 40 30 JTWC: 12.7S/92.4E 10 APR 03 0000 12.9 S 92.2 E 995 40 10 APR 03 0600 13.4 S 92.1 E 995 55 40 JTWC: 13.0S/92.2E 10 APR 03 1200 13.8 S 92.0 E 990 45 10 APR 03 1800 14.2 S 91.9 E 990 50 45 JTWC: 14.0S/92.5E 10 APR 04 0000 14.2 S 92.4 E 990 45 Relocated 10 APR 04 0600 14.5 S 92.3 E 986 50 50 JTWC: 15.2S/92.1E 10 APR 04 1200 14.8 S 91.8 E 980 60 10 APR 04 1800 15.2 S 91.6 E 980 60 60 JTWC: 15.4S/91.0E 10 APR 05 0000 15.6 S 91.4 E 976 65 10 APR 05 0600 16.0 S 91.6 E 976 60 65 JTWC: 16.1S/92.0E 10 APR 05 1200 16.2 S 91.8 E 976 65 10 APR 05 1800 16.1 S 92.2 E 985 45 50 10 APR 06 0000 16.0 S 92.1 E 992 40 10 APR 06 0600 15.5 S 91.8 E 995 35 35 Ex-TC/Final TC warnings 10 APR 06 1800 15.2 S 90.8 E 995 35 Peripheral gales 10 APR 07 0000 15.6 S 90.6 E 995 35 " 10 APR 07 0600 16.0 S 90.2 E 1000 33 Final Perth warning 10 APR 07 1200 16.2 S 89.6 E 1002 25 Locally 30 kts S semi. 10 APR 07 1800 16.5 S 89.0 E 1000 30 NRL data 10 APR 08 0000 16.0 S 87.6 E 1000 30 10 APR 08 0600 16.1 S 87.1 E 1000 30 10 APR 08 1200 16.4 S 85.8 E 1000 30 10 APR 08 1800 16.5 S 84.9 E 1000 30 10 APR 09 0000 16.4 S 83.3 E 1000 30 10 APR 09 0600 15.9 S 81.7 E 1000 30 10 APR 09 1200 15.6 S 80.7 E 1004 25 10 APR 09 1800 16.2 S 80.0 E 1004 25 10 APR 10 0000 17.1 S 79.3 E 1004 25 10 APR 10 0600 18.7 S 79.2 E 1004 25 10 APR 10 1200 16.6 S 79.5 E 1004 25 10 APR 10 1800 17.0 S 78.9 E 1004 25 10 APR 11 0000 17.6 S 78.1 E 1004 25 10 APR 11 0600 18.3 S 77.4 E 1004 25 10 APR 11 1200 19.4 S 76.2 E 1004 25 10 APR 11 1800 19.3 S 75.3 E 1004 25 Note: The final warning at 07/1200 UTC was the only issuance on this system by MFR La Reunion. For accounting purposes the ex-Robyn system was numbered as Tropical Disturbance 15, and classified as a 'filling depression'. ************************************************************************* Storm Name: SEAN Cyclone Number: 24S Basin: AUW Australian Tropical Low: 13U (Name assigned by Perth TCWC) Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 APR 21 0530 10.1 S 116.0 E 25 JTWC satellite bulletin 10 APR 21 1200 10.3 S 116.4 E 1006 25 25 10 APR 21 1800 10.6 S 116.0 E 1005 25 25 10 APR 22 0000 11.7 S 116.0 E 1004 30 25 10 APR 22 0600 12.4 S 115.7 E 1004 30 25 First JTWC warning 10 APR 22 1200 12.8 S 115.4 E 1003 35 30 10 APR 22 1800 13.2 S 115.1 E 1003 30 10 APR 23 0000 13.6 S 114.0 E 995 45 45 10 APR 23 0600 14.0 S 114.0 E 990 50 10 APR 23 1200 14.4 S 113.7 E 990 45 50 10 APR 23 1800 14.9 S 113.4 E 987 55 10 APR 24 0000 15.5 S 113.0 E 988 55 55 JTWC: 16.1S/113.1E 10 APR 24 0600 15.9 S 112.6 E 988 55 10 APR 24 1200 17.1 S 112.5 E 990 50 50 10 APR 24 1800 17.8 S 112.3 E 990 50 10 APR 25 0000 17.5 S 111.3 E 996 35 40 Final JTWC warning 10 APR 25 0600 18.1 S 110.5 E 1000 30 Final Perth warning 10 APR 25 1200 18.5 S 109.9 E 998 30 NRL data 10 APR 25 1800 18.4 S 108.7 E 1004 25 10 APR 26 0000 18.3 S 107.3 E 1004 25 10 APR 26 0600 18.1 S 105.5 E 1004 25 10 APR 26 1200 18.4 S 103.3 E 1004 25 10 APR 26 1800 18.7 S 101.1 E 1004 25 10 APR 27 0000 18.9 S 99.1 E 1004 25 10 APR 27 0600 18.9 S 97.6 E 1004 25 10 APR 27 1200 19.0 S 95.8 E 1004 25 10 APR 27 1800 19.1 S 94.5 E 1004 25 10 APR 28 0000 19.1 S 93.0 E 1004 25 10 APR 28 0600 18.9 S 92.1 E 1004 25 10 APR 28 1200 18.2 S 90.9 E 1004 25 10 APR 28 1800 17.5 S 89.9 E 1007 20 ************************************************************************* ************************************************************************* ********** SPECIAL NOTE ********** I now have some assistants who are helping to prepare the monthly tropical cyclone files, and I'd like to thank them for their willing- ness to assist me. Kevin Boyle, of Stoke-on-Trent, UK, will be preparing the tracks for Northwest Pacific basin tropical cyclones during the most active part of the NWP season from July through December. Michael Bath, of McLeans Ridges, New South Wales, Australia, is now preparing the track files for Australian Region and South Pacific tropical cyclones. Also, Steve Young sends me tracks with data for the pre-warning and post-warning stages of tropical cyclones in all basins, prepared primarily from NCEP re-analysis data or else taken from NRL files. A very special thanks is due to Kevin, Michael and Steve for their assistance. ************************************************************************* SOURCES OF TROPICAL CYCLONE INFORMATION The purpose of this section is to list some websites where many and varied types of tropical cyclone information are archived. Many readers will know about these already, but for the benefit of those who don't, I wanted to include them. (1) Aircraft Reconnaissance Information --------------------------------------- Various types of messages from reconnaissance aircraft may be retrieved from the following FTP site: Information regarding how to interpret the coded reconnaissance messages may be found at the following URL: Links are also included to websites with further information about the U. S. Air Force 53rd Weather Reconnaissance Squadron and the NOAA Air- craft Operations Center. (2) Archived Advisories ----------------------- All the advisory products (public advisories, forecast/advisories, strike probabilities, discussions, various graphics) issued by TPC/NHC are archived on TPC's website. For the current year (using 2004 as an example), the archived products can be found at: Links to tropical products archives for earlier years are available at the following URL: JTWC warnings for past storms are archived on the NRL Monterrey website: On the NRL site, the link to past years can be found in the upper left corner of the screen. I am not aware at the moment of any other TCWC which archives all its tropical cyclone warning/advisory products for public access, but if I learn of any, I will add them to this list. (3) Satellite Imagery --------------------- Satellite images of tropical cyclones in various sensor bands are available on the NRL Monterrey and University of Wisconsin websites, courtesy of Jeff Hawkins and Chris Velden and their associates. The links are: On the NRL site, the link to past years can be found in the upper left corner of the screen. For the CIMSS site, a link to data archives is located in the lower left portion of the screen. Additional tropical satellite imagery, along with looping ability for composite microwave imagery for the Western Hemisphere north of the equator, can be found at: (1) For the Eastern North Pacific: (2) For the Atlantic, Gulf of Mexico and Caribbean Sea: (4) Cyclone Tracking Information -------------------------------- There is a U. S. Navy site that tracks tropical cyclones at 6-hourly intervals which often includes pre and post-advisory positions. The link to the site is: Steve Young has compiled many of these tracks onto a single webpage which is very user-friendly: ************************************************************************* !!!!!! 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: 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: SPECIAL NOTE: Back issues of the global tropical cyclone summaries and monthly cyclone track files can be obtained at the following websites: PREPARED BY: Gary Padgett garyp@alaweb.com Kevin Boyle michaelpace@btinternet.com Michael Bath mbath@ozemail.com.au SIGNIFICANT CONTRIBUTIONS BY: Michael V. Padua michaelpadua@hotmail.com webmaster@typhoon2000.ph Steve Young shy9@earthlink.net ************************************************************************* ************************************************************************* ************************************************************************* Posted: 07.07.10 for Typhoon2000.com, Typhoon2000.ph, Maybagyo.com