Cyclone Nancy

Severe Tropical Cyclone Nancy
Cyclone Nancy on February 15
Meteorological history
FormedFebruary 10, 2005
DissipatedFebruary 17, 2005
Category 4 severe tropical cyclone
10-minute sustained (FMS)
Highest winds175 km/h (110 mph)
Lowest pressure935 hPa (mbar); 27.61 inHg
Category 4-equivalent tropical cyclone
1-minute sustained (SSHWS/JTWC)
Highest winds230 km/h (145 mph)
Overall effects
FatalitiesNone reported
Areas affectedCook Islands and American Samoa
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Part of the 2004–05 South Pacific cyclone season

Severe Tropical Cyclone Nancy (RSMC Nadi designation: 09F, JTWC designation: 18P) was the second in a series of four severe tropical cyclones to impact the Cook Islands during February 2005.[1] Forming out of an area of low pressure on February 10, Nancy quickly organized into a small, but intense, cyclone. By February 14, the storm explosively intensified into a Category 4 severe tropical cyclone with winds peaking at 175 km/h (109 mph) 10-minute winds)[nb 1] and a minimum barometric pressure of 935 hPa (mbar). Over the following day, increasing wind shear rapidly weakened the cyclone and by February 17, it transitioned into an extratropical cyclone shortly before being absorbed by Cyclone Olaf.

Already impacted by Cyclone Meena in early February, the Cook Islands sustained significant damage from Cyclone Nancy. Several homes were damaged and destroyed throughout the islands. Downed trees and power lines blocked roads and cut power and minor flooding was reported along coastal areas. Following the impact of the storm, the World Meteorological Organization retired the name Nancy in May 2006 and replaced it with the name Nat.

  1. ^ Cite error: The named reference ATCR was invoked but never defined (see the help page).


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