List of unnamed tropical cyclones

List of unnamed tropical cyclones

The list of unnamed tropical cyclones since naming began includes all tropical cyclones that met the criteria for naming in a basin, but that for whatever reason, did not receive a name. These systems have occurred in all basins and for various reasons.

cope, reasons, and naming overview

In order to ease communications and advisories,cite web|url=http://www.aoml.noaa.gov/hrd/tcfaq/B1.html|author=Christopher Landsea|title=Subject: B1) How are tropical cyclones named?|format=FAQ|accessdate=2008-05-05] tropical cyclones are named when, according to the appropriate Regional Specialized Meteorological Center or Tropical Cyclone Warning Center, tropical storm status. A tropical cyclone with winds of tropical storm intensity or higher goes unnamed when operationally, it is not considered to have met the criteria for naming. Reasons for this include:

* Post-operational upgrading. An example of this is the Unnamed tropical storm from the 1996 Pacific hurricane season.cite web|url=http://www.nhc.noaa.gov/1996unnamed.html|title= [U] nnamed tropical storm(formerly Tropical Depression One-E)|author=Edward Rappaport|date=1996-11-07|accessdate=2008-05-05|publisher=National Hurricane Center]
* Being missed during a season. An example of this is the 2005 Azores Subtropical storm from the 2005 Atlantic hurricane season.cite web|url=http://www.nhc.noaa.gov/pdf/TCR-AL212005_Unnamed.pdf|format=PDF|date=2006-04-10|author=Jack Beven & Eric S. Blake|title=Unnamed Subtropical Storm|page=1|accessdate=2008-05-05|publisher=National Hurricane Center]

North Atlantic Ocean

Naming has been used since the 1950 season.

*Tropical Storm 12 - 1950
*Tropical Storm 1 - 1952
*Tropical Storm 3 - 1953
*Tropical Storm 7 - 1953
*Tropical Storm 10 - 1953
*Tropical Storm 11 - 1953
*Tropical Storm 13 - 1953
*Tropical Storm 14 - 1953
*Hurricane 8 - 1954
*Tropical Storm 10 - 1954
*Tropical Storm 5 - 1955
*Tropical Storm 11 - 1955
*Tropical Storm 1 - 1956
*Tropical Storm 1 - 1957
*Tropical Storm 8 - 1957
*Hurricane 3 - 1959
*Tropical Storm 1 - 1960
*Tropical Storm 6 - 1961
*Tropical Storm 3 - 1963
*Tropical Storm 1 - 1964
*Tropical Storm 2 - 1964
*Tropical Storm 12 - 1964
*Tropical Storm 1 - 1965
*Hurricane 10 - 1969
*Tropical Storm 11 - 1969
*Tropical Storm 16 - 1969
*Hurricane 17 - 1969
*Tropical Storm 4 - 1970
*Hurricane 9 - 1970
*Hurricane 10 - 1970
*Hurricane 2 - 1971
*Tropical Storm 1 - 1987
*Tropical Storm 6 - 1988
*Hurricane 8 - 1991
*Tropical Storm 2 - 2006

ubtropical cyclones

Only unnamed subtropical cyclones that could have been named are included. This excludes several that existed, but that were unnamed because subtropical cyclones were not named when they existed.

*Subtropical Storm 19 - 2005

Eastern and central north Pacific Ocean

Naming began in 1960. Before 1957, a few systems in the central Pacific basin were given names, generally in an ad hoc manner.

*Tropical Storm 4 - 1962
*Tropical Storm 8 - 1962
*Tropical Storm 4 - 1963
*Hurricane 12 - 1975
*Tropical Storm 1 - 1996

Western north Pacific Ocean

Due to differences in wind speed criteria between the Japan Meteorological Agency and the Joint Typhoon Warning Center, a system will sometimes be considered a tropical storm by the JTWC but only a depression by the JMA. This results in several apparent unnamed systems. Because the JMA is responsible for naming, "unnamed tropical cyclones" that met the JTWC's tropical storm criteria but not those of the JMA are excluded.

* Tropical Storm 6 - 1995
* Tropical Storm 17 - 1996
* Tropical Storm 26 - 1996
* Tropical Storm 29 - 1996
* Tropical Storm 2 - 1998

North Indian Ocean

Due to differences in wind speed criteria between the India Meteorological Department and the Joint Typhoon Warning Center, a system will sometimes be considered a tropical storm by the JTWC but only a depression by the IMD. This results in several apparent unnamed systems. Because the IMD is responsible for naming, "unnamed tropical cyclones" that met the JTWC's tropical storm criteria but not those of the IMD are excluded.

Naming has taken place since 2006.

There have been no unnamed tropical cyclones using the India Meteorological Department's criteria. One system, 2007's Yemyin, was upgraded after the fact and retroactively named.cite web|url=http://www.webcitation.org/5QzqpfB7g|title=Mid-Season Review|publisher=India Meteorological Department|accessdate=2008-05-05]

Australian region

*Cyclone 5 - 1964-65
*Cyclone 6 - 1964-65
*Cyclone 6 - 1965-66
*Cyclone 9 - 1965-66
*Cyclone 2 - 1967-68
*Cyclone 3 - 1967-68
*Cyclone 11 - 1967-68
*Cyclone 13 - 1967-68
*Cyclone 17 - 1967-68
*Cyclone 15 - 1968-69
*Cyclone 16 - 1968-69
*Cyclone 1 - 1969-70
*Cyclone 7 - 1969-70
*Unrecorded Cyclonecite web|url=http://australiasevereweather.com/cyclones/2002/summ0112.htm|title=Monthly Global Tropical Cyclone Summary December 2001|author=Gary Padgett|date=2002-04-20|accessdate=2007-10-21]
*Cyclone 2 - 1981-82
*Cyclone 6 - 1983-84
*Cyclone 8 - 1995-96
*Cyclone 1 - 2002-03
* Cyclone 1 - 2007-08

Western south Indian Ocean

No tropical cyclones have gone unnamed since naming began in 1960–61.

References

Unless otherwise indicated, all storms come from the following datasets from the Regional Specialized Meteorological Center:
*Atlantic: cite web|url=http://www.nhc.noaa.gov/tracks1851to2007_atl_reanal.txt|title=Atlantic Tracks File 1851-2007|publisher=National Hurricane Center|date=2008-04-22|accessdate=2008-06-21
*Eastern and central north Pacific: cite web|url=http://www.nhc.noaa.gov/tracks1949to2007_epa.txt|title=Eastern North Pacific Tracks File 1949-2007|publisher=National Hurricane Center|date=2008-03-21|accessdate=2008-06-21
*Southwestern Indian Ocean: cite web|url=http://www.meteo.fr/temps/domtom/La_Reunion/base_cyclone/base_cyclone.html|title=Untitled|publisher=Meteo France|accessdate=2008-06-21
*Australian Region: cite web|url=ftp://ftp.bom.gov.au/anon2/home/ncc/cyclone/cyclones_newformat.zip|format=Zip|publisher=Bureau of Meteorology|accessdate=2008-06-21|title=Untitled]
*Western north Pacific: cite web|url=http://www.jma.go.jp/jma/jma-eng/jma-center/rsmc-hp-pub-eg/Besttracks/bst_all.txt|title=RSMC Best Track Data (Text)|publisher=Japan Meteorological Agency|accessdate=2008-06-21
*Northern Indian, western north Pacific, Southern Hemisphere: cite web|url=https://metocph.nmci.navy.mil/jtwc/best_tracks/|date=2007-08-09|title=JTWC Tropical Cyclone Best Track Data Site|publisher=Joint Typhoon Warning Center|accessdate=2008-05-21

External links

* [http://www.weather.unisys.com/hurricane/index.html Unisys Weather Data]


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