Other wikis On September 1–2, 2021, Hurricane Ida affected much of the Northeastern United States as an extratropical cyclone, causing catastrophic river and flash flooding.

Widespread flooding affected many areas, shutting down numerous roads, halting public transit, and cancelling hundreds of flights.

[11] The Weather Prediction Center issued a High Risk of flash flooding for parts of West Virginia, Maryland, Pennsylvania, New Jersey, New York, and Connecticut.

[12][13] On August 31, the New York Mets game against the Miami Marlins scheduled for September 1 at Citi Field was postponed due to the approaching storm.

[21] An EF2 tornado caused considerable damage to homes, businesses, schools, and other structures as well as trees, signs, and power lines in Annapolis.

A low-end EF2 tornado caused severe damage when it impacted the east side Oxford in Chester County.

[34] In Millburn, Essex County, the Rahway River overflowed its banks, flooding the downtown area.

[36] In nearby Livingston, the Canoe Brook overflowed its banks, and flooding damaged several police, fire department, and public works vehicles.

Manville Office of Emergency Management Director John Bentz stated that the Raritan River crested on the morning of September 3 at 27.6 ft (8.4 m), beating Hurricane Floyd of 1999.

[39] Nearby in Newark, the city realized their wettest day on record with 8.41 in (214 mm) of rain pouring down.

An EF3 tornado with winds of 150 mph (240 km/h) damaged or destroyed many homes and tossed cars in Mullica Hill, New Jersey.

[42] A total of 30 people were killed in New Jersey, making Ida the second deadliest tropical cyclone in the history of the state, behind Hurricane Sandy.

[54] The maximum amount of rainfall in Staten Island of 8.92 inches (227 mm) made it the 9th wettest tropical cyclone in New York.

[58] Caumsett State Historic Park Preserve suffered heavy damage and was forced to close after the storm.

[60] A Connecticut State Trooper sergeant was hospitalized after he and his police vehicle were swept away by floodwaters from the Pomperaug River in Litchfield County, early on September 2.

[65] An EF0 tornado was spawned in Dennis, Massachusetts, causing minor damage to two homes and knocking down three large oak trees.

[45] On September 2, Amtrak was forced to suspend the entire Northeast Corridor for a day due to storm damage.

Murphy said he would be requesting a major disaster declaration from the federal government, and promised to discuss storm-response measures with President Biden late on September 2.

[75] Mayor of New York Bill de Blasio presented the Climate Driven Rain Response Plan, which is expected to create a new and improved warning system.

The mayor also laid out the potential for travel restrictions, door-to-door warnings, phone alerts, and faster evacuations in the future.

On the same day, FEMA Administrator Deanne Criswell, De Blasio, Senator Chuck Schumer, and Congresswoman Alexandria Ocasio-Cortez visited Queens, one of the hardest-hit areas in New York City.

[76] AOC attributed the impacts to climate change, and also said that "[we] needed more advance notice from the [National Weather Service].

[76] Governor Kathy Hochul and Mayor Bill de Blasio allocated $27 million to assist undocumented residents who are not eligible for FEMA relief funds.