======================================================================================================== Updates to NHC archive b-decks NOTE: The source of this information is the NHC Notice to Users, which can be found at: https://ftp.nhc.noaa.gov/atcf/NOTICE and e-mails (when noted) from the designated NHC Point of Contact for Best Track b-decks. VDM+ uses the Best Tracks that were available as of the build date, as noted in the Sources page. As such, this file only includes information up until that time. ======================================================================================================== Posted as of Dec 20, 2006 ------------------------- For the 2006 AL basin, an "UNNAMED" Tropical Storm will be added to the ATCF database as a result of further re-anaylsis. This data will be posted shortly. Posted as of Jan 18, 2007 ------------------------- All 2006 season best tracks have been finalized. Data resides in the archive/ subdirectory. At this time, all AL, EP and CP systems except CP012006 "IOKE" have been finalized. CP012006 "IOKE" will post soon once DOD has finalized the WP basin portion of the track. Posted as of Jan 22, 2007 ------------------------- Corrected best track intensity of Wilma AL252005 - date/time is 2005102412 Incorrect itnensity listed as 100 kts, corrected to 95 kts which is consistent with Wilma Final TCR report. Posted as of Feb 14, 2007 ------------------------- NHC has re-posted the 2006 A-decks with corrections, so please re-pull the A-decks. All ETA related guidance was renamed to NAM and all AL022006 and above AL system A-deck guidance was corrected for a data merge end of season problem. At this time, please note that all AL, EP and CP systems except CP012006 "IOKE" have been finalized. CP012006 "IOKE" has posted; however, the intensity and mslp values are still under reanalysis and revision by DOD and CPHC. The IOKE best track data is still considered very preliminary. Once the post-storm analysis is complete, IOKE's data will be updated to this site. Posted as of Feb 15, 2007 ------------------------- JOHN EP12000 best track correction for incorrect date-time group. Posted as of Sep 17, 2007 ------------------------- Updated ATCF Archive datasets to include EP/CP reanalysis information from the HURDAT and corrected data problems for several AL systems - see README file in ARCHIVE section. Posted as of Jan 31, 2008 ------------------------- Final '07 season best track, guidance and fix information has been posted. Additional guidance (OCD5 and BCD5) has been merged into the the A-decks. Data is avalaible in the real-time data sub-directories and is also in compressed form in the archived area. Posted as of Aug 14, 2008 ------------------------- Corrections to the historical ATCF best track data were made, please see "archive/README" for details. Posted as of Feb 19, 2009 ------------------------- Posted final decks from 2008 season for both Atlantic, East Pacific and Central Pacific basins. See "archive/" directory for details and data. The entries in the "storm.table" master file will shortly be updated with the highest development level attained and with the end date of the system as noted in the best track record. In addition, the best track for 2008 in ESRI Shapefile format specification. These data are considered "beta" or "experimental" at this time and are located in the "gis/btk/" subdirectory. Posted as of Jun 19, 2009 ------------------------- Updated best track data in the archive/ directory, see the README file in the archive/ directory for list of changes/revisions. Posted as of Oct 22, 2009 ------------------------- Updated best track data in the archive/ directory, see the README file in the archive/ directory for list of changes/revisions. Posted as of Jan 28, 2010 ------------------------- Posted final Atlantic Basin data after post analysis was preformed. Posted as of Feb 17, 2010 ------------------------- Posted final East Pacific Basin data after post analysis was preformed. Posted as of Mar 5, 2010 ------------------------- Updated EP122009 "Ignacio" best track to include remnant low positions that were missing prior to the last update. Updated AL022009 "ANA" to remove erronous entry in the best track - ammended to have first entry start on 10/0600. Posted as of Oct 15, 2010 ------------------------- Updated best track data, includes adding higher temporal resolution information. See the "archive/" sub-directory README file for more information. Posted as of Feb 3, 2011 ------------------------ Added JOHN (EP112006) A-deck/B-deck to database that was missing previously. Posted as of Feb 18, 2011 ------------------------- Finalized all 2010 data, including best tracks. Also added new reanlysis datasets for the time period covering 1851-1930 - plus higher temporal resolution posits for significant event times or landfalls. Posted as of Apr 14, 2011 ------------------------- Corrected AL132011 "KARL" to include landfall points and intensity information. Posted as of May 13, 2011 ------------------------- Corrected AL0419938 "UNNAMED" best track data. Posted as of Mar 9, 2012 ------------------------ Finalized all 2011 data, including best tracks. Also added new reanlysis datasets for the time period covering 1857-1930 - plus higher temporal resolution posits for significant event times or landfalls. Corrected a few misc. data files as well. Posted as of Mar 15, 2012 ------------------------- Corrections made to best track infomration for 1901 (2) and 1906 (1) Posted February 15, 2013 ------------------------ Made numerous changes to fix errors and typos in several archived decks. Also updated b-decks to reflect reanalysis changes for 1931-1940. Fixed duplicate storm entry for AL231969, which results in a renumbering of all systems for that year - storms that were AL24-AL301969 are now AL23-AL291969. Corrected storm.table master list in archvie area to reflect the change in storm IDs for 1969. Posted March 8, 2013 ------------------------ Finalized all 2012 data, including best tracks. Posted March 12, 2013 ----------------------- Corrected b-deck for ep041989 to remove erroneous 35-kt intensity. Updated storm.table for 2012 TCs. Posted April 5, 2013 ----------------------- Updated b-decks for the following storms to correct errors: CP011963 CP011990 CP012009 EP051962 EP071976 EP081976 EP101978 EP131978 EP142003 Posted June 9, 2013 ------------------- Updated all AL b-decks from 1941-1945 to reflect reanalysis changes. Updated the following b-decks to correct minor typos: AL051897 AL131936 AL061938 AL021940 AL011969 AL191974 AL181975 AL071998 Posted November 29, 2013 ------------------------ Updated the following AL b-decks to include landfall entries: AL051855 AL021998 AL081999 AL131999 AL112000 AL042008 E-mail from Michael Brennan, 11/29/2013: This morning I pushed out updated b-decks for 6 Atlantic basin TCs to the ATCF archives on the NHC ftp server (ftp://ftp.nhc.noaa.gov/atcf/). The new b-decks for for these systems now include entries for the landfall times: AL051855 AL021998 AL081999 AL131999 AL112000 AL042008 Posted March 12, 2014 --------------------- Finalized all 2013 EP and AL data, including best tracks. E-mail, 03/11/2014: You will now find the final 2013 EP and AL ATCF decks on the NHC ftp server. These include the final best track data for all 2013 Atlantic and East Pacific tropical cyclones: ftp://ftp.nhc.noaa.gov/atcf/archive/2013/ Note that CPHC has not completed the final best tracks for the three TCs that formed in the central North Pacific basin in 2013, so those decks are not in the archives yet. I'll post them when they become available. Posted April 10, 2014 --------------------- Updated all AL b-decks from 1946-1950 to reflect reanalysis changes. Updated b-deck for AL091969 (Camille) to reflect reanalysis changes. Updated storm.table in archives for best-track changes. E-mail, 04/10/2014: I just pushed out the newly-updated Atlantic b-decks for 1946-1950 and Camille (AL091969) to the archives on the NHC FTP server: ftp://ftp.nhc.noaa.gov/atcf/archive/ Below is text from emails sent by Chris Landea in the last couple of weeks describing the changes. Cheers, Mike 1946-1950 Revisions to the hurricane database were accomplished by obtaining the original observations collected \u2013 mainly by ships, weather stations, and the early Hurricane Hunter Navy and Army Air Force aircraft reconnaissance planes \u2013 and assessing the storms based upon our understanding of hurricanes today. The reanalysis also allowed \u201cdiscovering\u201d of tropical storms and hurricanes that occurred, but were not yet officially recognized as such in the official records. 1946 to 1950 was an active period for hurricanes with 13 striking the continental United States, whereas an average five year span would have about nine U.S. hurricane impacts. Five of the 13 were major hurricane status \u2013 Category 3, 4, or 5 on the Saffir-Simpson Hurricane Wind Scale \u2013 at U.S. landfall and all five struck Florida. These are a Category 4 hurricane in Fort Lauderdale in 1947, a Category 4 hurricane in Everglades City in 1948, a Category 4 hurricane in Lake Worth in 1949, Category 3 Hurricane Easy in Cedar Key in 1950, and Category 4 Hurricane King in Miami in 1950. Of these, King and the 1948 and 1949 hurricanes were upgraded from a Category 3 to a Category 4 based upon the reanalysis. Having five major hurricanes making landfall in Florida is a record for a five year period, equaled only by the early 2000s. In addition, nine new tropical storms were discovered and added into the database for this five year period. Andrew Hagen, Donna Sakoskie, Daniel Gladstein, Sandy Delgado, Astryd Rodriguez, Chris Landsea and the NHC Best Track Change Committee all made substantial contributions toward the reanalysis of these hurricane seasons. This research is supported in part by the NOAA Climate Program Office. Camille A re-analysis of the database for Hurricane Camille, an extremely intense hurricane that devastated the U.S. Gulf Coast on the night of August 17, 1969, has been completed. Based upon this reassessment, Hurricane Camille is indicated at landfall on the Mississippi coast to have been a Category 5 on the Saffir-Simpson Hurricane Wind Scale with peak sustained winds of 150 kt (175 mph) and a central pressure of 900 mb. This is the same category as analyzed originally, but the peak sustained winds were reduced from 165 kt (190 mph) and the central pressure lowered from 909 mb. Camille is also reanalyzed to have undergone genesis as a tropical cyclone 18 hours earlier than first indicated on August 14, 1969. Revisions to the Camille\u2019s database were accomplished by obtaining the original observations collected \u2013 mainly by ships, weather stations, coastal radars, Navy/Air Force/Environmental Science Services Administration (ESSA) Hurricane Hunter aircraft reconnaissance planes, ESSA/NASA satellite imagery \u2013 and analyzing Camille based upon our understanding of hurricanes today. (The agency ESSA is now the National Oceanic and Atmospheric Administration - NOAA.) Posted April 23, 2014 --------------------- Fixed typo in b-deck for AL071916. Posted June 8, 2014 ------------------- Updated numerous AL b-decks as described below: -Added non-developing TDs for 1988 (bal131988.dat through bal191988.dat), which were previously missing. -Added multiple asynoptic landfall/intensity points for 1983 to 2011, which were not in the b-decks. -Fixed typographic errors in b-decks for al011928, al071934, al071944, and al191974. Also updated storm.table in archives for best-track changes. E-mail, 06/08/2014: Chris Landsea recently made many minor changes to the ATCF Atlantic basin b-deck archive based on errors and items that were discovered internally at NHC and through external feedback. Today I pushed those updated b-decks to the ATCF archive on the NHC public ftp server (ftp://ftp.nhc.noaa.gov/atcf/archive/). Note that these changes have already been made to the HURDAT2 database. The "storm.table" file has also been updated to include the 1988 non-developing TDs. Here are details on the changes: 1. Added the non-developing TDs for 1988 (bal131988.dat through bal191988.dat), which were previously missing from the ATCF. 2. Added multiple asynoptic landfall/intensity points for 1989 to 2011, which were in TCRs, but were not in the b-decks. 3. Added multiple asynoptic landfall/intensity points for 1983 to 1988, which were in TCRs, but pre-dated the ATCF and thus were not in the b-decks. 4. Typographic errors in b-decks for al011928, al071934, al071944, and al191974. A list of all of the storms with modified b-decks can be found below. Mike 1928 al011928 1934 al071934 1944 al071944 1974 al191974 1983 al031983 al041983 1984 al101984 1985 al021985 al041985 al051985 al091985 al101985 al111985 al121985 al131985 1986 al021986 al051986 1987 al121987 al131987 1988 al031988 al071988 al081988 al111988 al121988 al131988 al141988 al151988 al161988 al171988 al181988 al191988 1989 al021989 al041989 al051989 al101989 al111989 al141989 1990 al051990 1991 al031991 al091991 al121991 1994 al121994 1995 al061995 1997 al051997 1998 al031998 al081998 al131998 1999 al021999 al051999 al081999 al101999 al141999 2000 al072000 al092000 al152000 al192000 2002 al142002 2004 al062004 2005 al032005 2008 al042008 al062008 al162008 2009 al042009 al062009 2011 al082011 al092011 Posted June 30, 2014 -------------------- Finalized all 2013 CP storms, including best tracks. E-mail, 06/30/2014: The final ATCF decks for the 3 2013 central Pacific TCs have been added to the ATCF data archive on the NHC ftp server. These include the final best track data for all 2013 Central Pacific tropical cyclones: ftp://ftp.nhc.noaa.gov/atcf/archive/2013/ Posted March 9, 2015 -------------------- Finalized all 2014 AL and EP information, including best tracks, except for EP072014, EP092014, and EP102014. The final best track of these storms in the archives section ends at 140W pending receipt of final best track information from CPHC and JTWC. The working best track data from these storms is still available in the real time directories. E-mail, 03/09/2015: I just pushed out the final 2014 ATCF decks that are hosted on the NHC ftp server (ftp://ftp.nhc.noaa.gov/atcf/archive/2014/), which includes the final best track data for all 2014 Atlantic and east Pacific tropical cyclones, except for the following storms: EP07 (Genevieve) EP09 (Iselle) EP10 (Julio) For these three storms, only the NHC portion of the final best track has been posted in the "archives" area - in other words, these tracks end at 140W. The rest of the final best track information will be added when it is received from CPHC and JTWC. The remainder of the information for these three storms, including the working best tracks from CPHC and JTWC, remain in the "real time" section of the FTP server: ftp://ftp.nhc.noaa.gov/atcf/ Note that the 2014 CP storms (CP01, CP02) also remain in the real time section of the FTP server pending the final best tracks from CPHC. Posted April 21, 2015 --------------------- Updated b-deck and f-deck for al012014 for best track and fix changes. Posted May 26, 2015 ------------------- Updated b-decks for 1951-1955 AL systems to reflect reanalysis changes, including renumbering of storms. Also, a-decks for 1954-1955 were updated to reflect renumbering. Also updated the following AL b-decks to correct errors: AL021876 AL031938 AL011941 AL151949 AL031974 AL041974 AL051974 Also updated storm.table in archives for best-track changes. E-mail, 05/26/2015: The following Atlantic ATCF best track files (b-decks) in the archives on the NHC FTP server have been updated to reflect changes from the reanalysis project and to correct errors. 1951-1955 (all storms) AL021876 AL031938 AL011941 AL151949 AL031974 AL041974 AL051974 For 1951-1955 storms have been renumbered to reflect the inclusion of new systems. Beginning in 1954, the available a-decks have also been renumbered for consistency. Also, the storm.table file has also been updated to reflect the changes. The data can be accessed at: ftp://ftp.nhc.noaa.gov/atcf/archive/ Posted June 11, 2015 -------------------- Updated b-deck for AL011952 to correct status on first day of system's life to "LO". Posted July 7, 2015 ------------------- Posted final decks, including best tracks, for CP012014 and CP022014. E-mail, 07/07/2015: The final 2014 ATCF decks from CPHC for CP01 and CP02 have been posted to the NHC ftp server: ftp://ftp.nhc.noaa.gov/atcf/archive/2014/ Posted December 21, 2015 ------------------------ Corrected error in system status in b-deck for AL032005. Posted February 12, 2016 ------------------------ Posted final decks for EP092014 and EP102014. Posted February 16, 2016 ------------------------ Posted updated b-deck for EP121959 based on reanalysis. Posted February 26, 2016 ------------------------ Posted updates to numerous east Pacific b-decks to fix errors, include non-synoptic landfall points, and include all non-developing tropical depressions from 1988. EP141988 through EP201988 EP031989 EP211989 EP211990 EP201992 EP101995 EP051996 EP091996 EP101996 EP011997 EP161997 EP191997 EP121999 EP162000 EP192000 EP142013 Posted February 19, 2016 ------------------------ Finalized all 2015 AL and EP information, including best tracks, except for EP042015 (Ela) and EP122015 (Ignacio) which are pending the receipt of final best track information from CPHC. The working best track data for EP042015 are still available in the real time directory. For EP122015, the final best track east of 140W has been posted in the archives and the real-time track information west of 140W is still available in the real-time directory. The final best track data for the 9 2015 CP storms are not yet available, so the real-time data for those storms remain in the real time directories. Posted May 3, 2016 ------------------ Posted final decks for Genevieve (EP072014) and updated storm.table. Posted July 23, 2016 -------------------- Posted final decks for Niala (CP062015). Also updated b-decks for 1956- 1960 AL systems to reflect reanalysis changes, including addition of several new storms. Updated storm.table. Posted October 4, 2016 ---------------------- Posted final decks for Malia (CP052015). Posted October 11, 2016 ----------------------- Posted final decks for Oho (CP072015). Posted November 17, 2016 ------------------------ Posted final decks for TD Nine-C (CP092015). Posted April 5, 2017 -------------------- Finalized all 2016 AL and EP information, including best tracks, except for EP052016 (Darby), EP132016 (Lester), and EP142016 (Madeline), which are pending the receipt of final best track information from CPHC. For these three systems, the final best track east of 140W has been posted in the archives, while the real-time track information west of 140W is still available in the real-time btk directory. The final best track data for CP012016 has also been posted. Note that final best tracks for the five 2015 CP systems (CP01, 02, 03, 04, and 08) have not yet been completed. These systems will be pushed into the archives when final best tracks from CPHC are available. A special note about the files for Otto, which is listed as both AL16 and EP22. The best track and fix files contain the complete history of the storm in both sets of files. The a- and e-decks, however, only contain forecast information for times when Otto was located in their respective basins. For example, the a-deck for AL16 contains model tracks for all times prior to 06Z on 25 November, when Otto moved into the EP basin. Posted April 7, 2017 -------------------- Posted final decks for EP040215 (Ela). Posted April 26, 2017 --------------------- Posted new b-decks for the storms listed below to fix spacing within the files, however no changes were made to best track infromation. AL101995 AL131995 AL131996 AL131998 AL131999 Posted October 30, 2017 ----------------------- Posted final decks for CP082015. Posted January 8, 2018 ---------------------- Posted final decks for CP042015. Posted April 25, 2018 --------------------- Finalized all 2017 AL and EP storm information, including best tracks, except for EP062017 (Fernanda), which is pending receipt of final best track information from CPHC. For this system, the final best track east of 140W has been posted in the archives, while the real-time track information west of 140W is still available in the real-time btk directory. The final best track data for CP022015 (Iune) has also been posted. Posted May 11, 2018 ------------------- Posted new b-decks for storms listed below to correct typos in best track data: AL081861 AL061889 AL031952 AL131954 AL031955 AL031988 AL051989 AL091993 AL091998 AL092004 Posted July 25, 2018 -------------------- Posted corrected b-deck for AL131995 that is consistent with post analysis published in NHC Preliminary Report (currently known as a Tropical Cyclone Report). Posted August 3, 2018 --------------------- Posted final decks for EP132016 (Lester) including final best track information from CPHC. Posted August 14, 2018 ---------------------- Posted corrected b-deck for AL021899 to correct erroneous lat/lon at 1000 UTC 30 July 1899. Posted August 22, 2018 ---------------------- Posted final decks for EP122015 (Ignacio) after receipt of final best track info from CPHC. Posted November 14, 2018 ------------------------ Posted final decks for CP032015 (Kilo). Posted January 28, 2019 ----------------------- Posted corrected b-deck for CP032009 (Neki). Posted February 14, 2019 ------------------------ Updated b-decks for EP142017 (Lidia) and AL172017 (Ophelia) to correct erroneous data. Posted February 28, 2019 ------------------------ Updated b-deck and f-deck for Fernanda (EP062017) after receipt of final best track data from CPHC. Posted May 13, 2019 ------------------- Posted final data, including b-decks, for all 2018 AL and EP storms except for EP0102018 (Hector), EP142018 (Lane), EP152018 (Miriam), and EP162018 (Norman), which are pending receipt of final best track information from CPHC. For these systems, the final best track east of 140W has been posted in the archives, while the real-time track information west of 140W is still available in the real-time btk directory. Posted May 29, 2019 ------------------- Posted final decks for CP012016 (Pali). Posted August 8, 2019 --------------------- Posted final b-decks for EP102018 (Hector) and EP152018 (Miriam), including final best track information from CPHC and JTWC for EP10 and CPHC for EP15. Posted November 1, 2019 ----------------------- Updated final b-decks for AL032004 (Charley) and AL122008 (Laura) to correct wind radii errors. Posted December 16, 2019 ------------------------ Updated final f-deck for AL172017 (Ophelia) to correct errors. Updated all Atlantic b-decks from 1961-1965 to reflect reanalysis changes and updated storm.table for best-track changes. Posted January 11, 2020 ----------------------- Removed EP091961 (Simone) as part of the hurricane database reanalysis project. Posted April 28, 2020 --------------------- Posted final data, including b-decks, for all 2019 AL and EP storms except for EP062019 (Erick) and EP122019 (Akoni), which are awaiting final best track information. For Erick, the final best track east of 140W has been posted in the archives, while the real-time track information west of 140W is still available in the real-time btk directory. The final best tracks for CP012018 (Walaka) and EP142018 (Lane) have also been posted. Posted April 29, 2020 --------------------- Posted final decks for EP122019 (Akoni). Posted May 1, 2020 ------------------ Posted updated b-decks for the following storms to fix errors: AL021865 AL051878 AL021880 AL061947 AL131999 AL141999 AL092011 Posted December 3, 2020 ----------------------- Updated the following deck files to correct errors and complete records: bal062018 bep052016 aep052016 bep142016 aep142016 bep162018 aep162018 Posted February 9, 2021 ----------------------- Updated the following b-decks to correct errors: bal011906 bal011928 bal011960 bal021963 bal011965 Posted February 12, 2021 ------------------------ Updated the b-deck for EP092014. Posted March 3, 2022 -------------------- Updated Atlantic basin b-decks for 1966-1970 to reflect reanalysis changes, including the addition of several new storms. Updated storm.table. Posted June 22, 2022 -------------------- Updated b-deck for al142021 to include missing 64-kt wind radii at 0000 UTC 14 September. Posted September 22, 2022 ------------------------- Updated b-decks for the following storms to correct typos and account for reanalysis of the 1944 Great Atlantic Hurricane: al061941 al071944 al031952 al021964 al011966 al021966 al041966 al051966 al061966 al071966 al081966 al091966 al111966 al131966 al141967 al281969 al081970 al181970 al091988 al112003 Posted December 22, 2022 ------------------------ Updated b-deck for ep062019 to include best track data from the central Pacific basin and uploaded missing a- and e-decks. Posted April 20, 2023 -------------------- Posted final data, including b-decks, for all 2022 AL and EP storms.