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Tropical Storm Danny was the fourth named storm of the 1991 Atlantic hurricane season. Danny developed on September 7 well to the east of the Leeward Islands. Danny moved westward to west-northward and dissipated on September 11 as it was approaching the central portion of the Leeward Islands.

Danny caused no damage and no deaths.

Danny on September 10
tropicalstormdanny1991an4.jpg
FormationSeptember 7, 1991
Dissipation September 11, 1991
Highest winds 50 mph
Lowest pressure 998 mbar
Deaths None
Damages None
Areas affectedNone
Part of the 1991 Atlantic hurricane season

Meteorological history

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Danny originated from a vigorous tropical wave that emerged off the coast of Africa on September 5. The wave produced a marked low-level wind shift as it passed Dakar, Senegal. As it emerged into the far eastern Atlantic Ocean, the wave quickly acquired a banding structure. As the wave continued westward, METEOSAT satellite imagery indicated that the wave acquired sufficient organization to be designated Tropical Depression Seven at 0000 UTC September 7 while located about 270 miles south-southwest of the southwesternmost Cape Verde Islands. After forming, the depression moved swiftly westward and strengthened into a tropical storm at around 1200 UTC September 8. Due to a strong subtropical ridge to the north, Danny headed westward to west-northwestward. Although Danny changed little in strength between 0600 UTC September 9 and 1200 UTC September 10, the cyclone is estimated to have reached its peak intensity of 50 mph with a minimum central pressure of 998 mb near 0000 UTC September 10. During this time, Danny's center was tucked underneath a central dense overcast feature. Later that day, an upper-level low near 22°N 60°W produced strong vertical shear over Danny. At 1200 UTC September 11, Danny weakened to a tropical depression while located around 180 miles east of Guadeloupe. By 1800 UTC that day, Danny degenerated into an open tropical wave when reconnaissance aircraft was unable to detect a well-defined low-level center. Danny's remnants moved northwest and north, and eventually merged with a frontal zone over the north central Atlantic Ocean.

Lack of Retirement

Because it did not affect land, the name Danny was not retired in the Spring of 1992 by the World Meteorological Organization. Danny is on the list of names to be used for the 2009 season.

See also

References

http://www.nhc.noaa.gov/archive/storm_wallets/atlantic/atl1991/danny/

http://en.wikipedia.org/wiki/1991_Atlantic_hurricane_season#Tropical_Storm_Danny

External links

1991 Atlantic hurricane season

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