Tropical Storm Ingrid was the ninth named storm of the 2007 Atlantic hurricane season. Ingrid was a weak tropical storm, peaking at only 45 mph before being sheared apart by strong upper-level winds associated with an unseasonably strong upper-level trough over the central Atlantic Ocean. Ingrid dissipated on September 17 while east of the northern Leeward Islands.

Ingrid caused no damage or deaths.

Ingrid at peak intensity
FormationSeptember 12, 2007
Dissipation September 17, 2007
Highest winds 45 mph
Lowest pressure 1002 mbar
Deaths None
Damages None
Areas affectedLeeward Islands
Part of the 2007 Atlantic hurricane season

Meteorological History


Ingrid originated from a large tropical wave that left the coast of Africa on September 6. Due to strong easterly shear, the wave was not able to development. Indeed, it was not until September 9 that a broad area of low pressure developed along the wave axis, while it was located midway between Africa and the Lesser Antilles. During the following days, the aforementioned easterly shear decreased, which enabled the wave to develop convection close to its center. On September 11, the first Dvorak classifications were taken on the wave. On the morning of September 12, the wave was sufficiently organized to be considered Tropical Depression Eight while located about 980 miles east of the Lesser Antilles. After forming, the cyclone moved west-northwest due to a ridge to the north. In spite of strong westerly shear, the depression became a tropical storm at 0600 UTC September 13 while located about 730 miles east of the Lesser Antilles. 12 hours later, Ingrid reached its peak intensity of 45 mph. Strong upper-level westerly wind shear, caused by an unseasonably strong upper-level trough located west-northwest of Ingrid, prevented any additional strengthening of the storm. The shear increased further over the next 24 hours, and Ingrid weakened to a tropical depression at 1800 UTC September 15. Ingrid maintained tropical depression status until around 0600 UTC September 17, when it degenerated into a remnant low while located about 140 miles east-northeast of Antigua. Ingrid's remnants moved slowly west-northwest to northwest within the low-level flow, and the remnants dissipated on September 18.


Because Ingrid remained away from land, its effects were minimal. It produced heavy rainfall and thunder on Antigua, and 1.5 inches of rain in one hour on St. Martin, which caused some street flooding. No damage or fatalities were reported in association with Ingrid, and no ships or land areas experienced tropical storm force winds from the weak cyclone.

Lack of Retirement

Because of the lack of damage, the name Ingrid wasn't retired in the Spring of 2008 by the World Meteorological Organization. It is on the list of names to be used for the 2013 Atlantic hurricane season.

See also


External links

2007 Atlantic hurricane season

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