GLOBAL TROPICAL CYCLONE TRACKS - DECEMBER 2010 !!!! IMPORTANT -- PLEASE SEE INFORMATION AT END OF FILE !!!! ************************************************************************* 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. Following is the link to the Wikipedia page for the 2010 Pacific Typhoon Season: Following is a link to Michael Padua's storm log for TD-19W: Systems Tracked --------------- Tropical Depression (19W) 12 - 13 Dec Tropical Cyclone OMEKA (01C) 16 - 21 Dec ************************************************************************* Storm Name: None Cyclone Number: 19W Basin: NWP PAGASA Internal Name: None JMA Tropical Storm Number: None Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 DEC 12 1200 9.9 N 112.1 E 1004 25 25 10 DEC 12 1800 10.0 N 111.3 E 1004 25 25 10 DEC 13 0000 10.2 N 110.7 E 1006 25 25 10 DEC 13 0600 10.2 N 110.4 E 1006 25 25 Note: The only evidence that this system possibly reached 30 kts is a SAB rating of T2.0/2.0 at 12/1430 UTC. ************************************************************************* Storm Name: OMEKA Cyclone Number: 01C Basin: NWP/NEP (Name assigned by the CPHC, Honolulu) Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 DEC 16 1200 28.0 N 177.0 E 1006 25 Non-tropical LOW 10 DEC 17 0000 26.0 N 180.0 W 1004 25 (High Seas warnings) 10 DEC 17 1200 25.0 N 179.0 W 1005 30 10 DEC 18 0000 24.0 N 178.0 W 1002 30 10 DEC 18 0600 24.0 N 178.0 W 1002 30 10 DEC 18 2100 22.6 N 179.8 E 50 Track from K. Hoarau 10 DEC 19 0000 22.2 N 179.6 E 1000 55 25 10 DEC 19 0600 21.6 N 179.4 E 1000 60 25 10 DEC 19 1200 21.2 N 179.3 E 998 65 30 10 DEC 19 1500 20.8 N 179.2 E 70 10 DEC 19 1800 20.4 N 179.1 E 998 65 30 10 DEC 20 0000 20.1 N 179.9 W 998 55 30 10 DEC 20 0600 20.5 N 178.7 W 997 45 CPHC warnings 10 DEC 20 1200 21.0 N 177.3 W 997 45 10 DEC 20 1800 22.4 N 176.1 W 1005 35 10 DEC 21 0000 23.8 N 174.6 W 1005 35 10 DEC 21 0600 25.4 N 173.7 W 1005 35 10 DEC 21 1200 27.0 N 173.0 W 1003 35 Extratropical gale 10 DEC 21 1800 29.0 N 173.0 W 1002 35 Note: The track above to 18/0600 UTC is based on NWS Honolulu high seas forecasts. From 18/2100 through 20/0000 UTC the information was supplied by Dr. Karl Hoarau. (A special thanks to Karl for providing the information.) The remainder of the track is based on CPHC tropical cyclone warnings and high seas forecasts. The 10-min avg MSW and CP values prior to 20/0600 UTC were taken from JMA high seas bulletins, which treated the system no higher than a 30-kt tropical depression. Following are Dvorak ratings from CPHC, JTWC, and SAB for the portion of Omeka's history west of longitude 180: (1) ***** CPHC ***** Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 DEC 19 0530 21.6 N 179.4 E T3.5/3.5 10 DEC 19 1130 21.2 N 179.3 E T3.5/3.5 10 DEC 19 1730 20.5 N 179.1 E T3.5/3.5 10 DEC 19 2330 20.2 N 179.9 E T3.0/3.0 10 DEC 20 0530 20.4 N 178.9 E T2.5/3.0 (2) ***** JTWC ***** Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 DEC 18 2030 22.6 N 179.8 E ST2.5/2.5 10 DEC 18 2330 22.3 N 179.4 E ST3.0/3.0 10 DEC 19 0530 21.7 N 179.2 E ST3.0/3.0 10 DEC 19 1130 21.2 N 179.1 E ST3.5/3.5 10 DEC 19 1730 20.4 N 179.0 E ST3.0/3.0 10 DEC 19 2330 20.1 N 179.9 E ST2.0/3.0 10 DEC 20 0530 20.4 N 178.8 W T2.0/3.0 (3) ***** SAB ***** Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 DEC 18 1130 23.5 N 178.8 W ST2.5 10 DEC 18 1800 23.1 N 180.0 W ST2.5 10 DEC 18 2030 22.6 N 179.7 E T3.0/3.0 10 DEC 19 0230 21.9 N 179.1 E T3.5/3.5 10 DEC 19 0830 21.4 N 179.5 E T4.0/4.0 10 DEC 19 1430 21.0 N 179.1 E T4.5/4.5 10 DEC 19 2030 20.3 N 179.4 E T3.0/4.0 Note: Karl's estimated peak intensity of 70 kts at 19/1500 UTC is supported by SAB's rating of T4.5/4.5 at the same time. There was quite a spread in the warning agencies' estimates at this time, ranging from T4.5/4.5 (SAB) to apparently a T2.0/2.0 from JMA, with CPHC fitting in with T3.5/3.5 and JTWC assigning a subtropical rating of ST3.5. ************************************************************************* ************************************************************************* 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 2010-2011 Australian Region Cyclone Season: Systems Tracked --------------- Tropical LOW (06U) 30 Dec - 03 Jan ************************************************************************* Storm Name: None Cyclone Number: None Basin: AUW (Australian LOW 06U) Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 DEC 30 0600 15.0 S 130.5 E 1000 10 Over land 10 DEC 30 1200 15.6 S 128.5 E 1000 10 " 10 DEC 30 1800 15.6 S 126.8 E 1000 15 " 10 DEC 31 0000 16.0 S 125.3 E 999 15 " 10 DEC 31 0600 16.3 S 123.8 E 997 15 " 10 DEC 31 1200 17.2 S 122.1 E 997 25 Near coast 10 DEC 31 1800 17.8 S 120.1 E 997 25 11 JAN 01 0000 18.7 S 118.3 E 996 25 Locally 30 kts S semi 11 JAN 01 0600 19.2 S 115.8 E 993 30 Locally 35 kts S semi 11 JAN 01 1200 19.3 S 114.0 E 993 30 " 11 JAN 01 1800 19.3 S 112.9 E 993 30 11 JAN 02 0000 19.3 S 112.4 E 993 30 11 JAN 02 0600 20.3 S 110.1 E 993 30 11 JAN 02 0830 20.9 S 109.5 E SAB bulletins 11 JAN 02 1432 21.7 S 108.3 E Too weak to classify 11 JAN 03 0400 19.7 S 107.0 E Perth TWO Note: JTWC issued two formation alerts - the first at 31/0130 UTC and the second at 01/0130 UTC. No warnings were issued. ************************************************************************* ************************************************************************* 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. Following is the link to the Wikipedia page for the 2010-2011 Australian Region Cyclone Season: Systems Tracked --------------- Tropical Cyclone TASHA (05U / 04P) 24 - 25 Dec ************************************************************************* Storm Name: TASHA Cyclone Number: 04P Basin: AUE (Name assigned by Brisbane TCWC - Australian LOW 05U) Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 10 DEC 24 1200 16.6 S 147.4 E 998 30 10 DEC 24 1500 16.6 S 146.6 E 996 35 Named TC Tasha 10 DEC 24 1800 17.0 S 146.0 E 993 35 40 Interacting w/coastline 10 DEC 24 2100 17.2 S 145.5 E 995 25 Ex-TC over land 10 DEC 25 0600 19.7 S 144.2 E 35 JTWC's final warning ************************************************************************* ************************************************************************* ********** 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 June 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: 04.14.11 for Typhoon2000.com, Typhoon2000.ph, Maybagyo.com