Question: When did hurricane irene hit the united states?

Disambiguated questions and answers:
context: No context provided
question: When did hurricane irene hit the united states in 1999?
short_answers: October 15
October 15, 1999
context: Governor of New York Andrew Cuomo declared a state of emergency on August 26, and that day issued a mandatory evacuation order for low-lying areas of New York City. A day prior, New York City Mayor Michael Bloomberg had announced that the city would prepare to create "an enormous shelter system" for residents without access to higher ground. President Barack Obama issued a state of emergency declaration for the New York metropolitan area, freeing federal disaster funds, and tasking the Federal Emergency Management Agency and the Department of Homeland Security to coordinate disaster relief efforts. Cuomo deployed 2,000 National Guard troops to assist police, the Metropolitan Transportation Authority (MTA) and the Port Authority in New York and Long Island. Possible rising seawater levels from storm surge and a predicted high tide led to a complete shutdown of the MTA, the nation's largest mass transit system. All subway, bus, and commuter rail service in New York City was halted at noon on August 27. Four area hospitals began evacuating patients on August 26; sixteen nursing homes and adult care facilities were also evacuated. The New York International Fringe Festival cancelled all performances for August 27, and 28, as did all Broadway shows for those days. The United States Tennis Association cancelled special events planned for the 2011 US Open.
question: When did hurricane irene hit the mainland united states in 2011?
short_answers: August 27, 2011
August 27
wikipage: Hurricane Irene
context: Irene was positioned about east of Dominica in the Lesser Antilles when it was classified and named, along weakening high pressure over the west-central Atlantic, inducing a roughly west-northwestward path for most of its journey through the eastern Caribbean. Its mid-level circulation continued to become better established as hints of pronounced banding features curved north of the surface center. On August 21, the surface center reformed closer to the deepest convection; furthermore, an anticyclone aloft provided supportive outflow over the cyclone. With the improved structure, as well as light wind shear and high sea surface temperatures, Irene was forecast to strengthen to near hurricane force prior to landfall in Hispaniola. Over the subsequent day (August 22), while passing near the island of Saint Croix in the U.S. Virgin Islands, Irene traced toward Puerto Rico, more northward than initially expected, where it underwent a considerable increase in strength and organization. Hours later, Irene moved ashore, approaching from the southeast at landfall near Punta Santiago, Humacao, Puerto Rico, with estimated sustained winds of . Despite the storm's interaction with land, radar imagery showed a ragged eye-like feature, and Doppler weather radar data indicated wind speeds in excess of hurricane force. Just after its initial landfall, Irene was accordingly upgraded to a Category 1 hurricane, the first of the 2011 Atlantic hurricane season.
question: When did hurricane irene hit Saint Croix in the U.S. Virgin Islands in 2011?
short_answers: August 22
August 22, 2011
wikipage: Hurricane Irene

Long-form answers:
knowledge: content: Hurricane Irene produced somewhat heavy damage across southern Florida in October 1999
wikipage: Hurricane Irene (1999)
content: Irene struck Florida on October 15 as a Category 1 hurricane, first at Key West and later near Cape Sable. 
wikipage: Hurricane Irene (1999)
content: The name Irene was retired in the North Atlantic after the 2011 season
wikipage: Tropical Storm Irene
content:  Irene was downgraded to a Category 1 hurricane before making landfall on the Outer Banks of North Carolina on August 27, becoming the first hurricane to make landfall in the United States since Hurricane Ike in 2008. Later that day, the storm re-emerged into the Atlantic from southeastern Virginia. Although Irene remained a hurricane over water, it weakened to a tropical storm while making yet another landfall in the Little Egg Inlet in southeastern New Jersey on August 27. A few hours later, Irene made its ninth and final landfall in Brooklyn, New York City. Early on August 29, Irene transitioned into an extratropical cyclone while striking Vermont, after remaining inland as a tropical cyclone for less than 12 hours.
wikipage: Hurricane Irene
long_answer: Two hurricanes named Irene have hit the United States, one in 1999 and another in 2011. In 1999, Hurricane Irene struck Florida on October 15 as a Category 1 hurricane, first at Key West and later near Cape Sable. In 2011, Hurricane Irene made landfall on the Outer Banks of North Carolina on August 27 as a Category 1 hurricane. Later that day, the storm re-emerged into the Atlantic from southeastern Virginia. Although Irene remained a hurricane over water, it weakened to a tropical storm while making yet another landfall in the Little Egg Inlet in southeastern New Jersey on August 27. A few hours later, Irene made its ninth and final landfall in Brooklyn, New York City. Early on August 29, Irene transitioned into an extratropical cyclone while striking Vermont. Before making landfall in North Carolina, Irene had also passed near the island of Saint Croix in the US Virgin Islands on August 22, 2011.The name Irene was retired in the North Atlantic after the 2011 hurricane season.