List of Storms in The 2005 Atlantic Hurricane Season - Hurricane Irene

Hurricane Irene

Category 2 hurricane (SSHS)
Duration August 4 – August 18
Peak intensity 105 mph (165 km/h), 970 mbar (hPa)

Tropical Depression Nine formed from a tropical wave west of Cape Verde on the afternoon of August 4, the second Cape Verde-type storm of the season. The system encountered dry air and wind shear as it turned to the northwest and it broke down. Despite poor organization and shearing winds, it became Tropical Storm Irene on August 7. Further shear and dry air disrupted the cyclone's structure, and Irene was downgraded to a tropical depression on August 8.

Irene cycled between apparent reintensification and significant weakening, becoming so disorganized in the early morning of August 10 that forecasters were considering declaring the storm dissipated. However, the depression continued to move westward into more favorable conditions and again attained tropical storm status, rapidly strengthening to a Category 1 hurricane on August 14. Later, it strengthened even further in low shear conditions under an upper level anticyclone. On August 16 it briefly strengthened to a Category 2 hurricane, but began to weaken in cooler waters shortly thereafter. It became extratropical southeast of Cape Race, Newfoundland on August 18, having never posed a threat to land.

  • The NHC's archive on Hurricane Irene

Read more about this topic:  List Of Storms In The 2005 Atlantic Hurricane Season

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