Hurricane Ida (2021)

Basin

North Atlantic

Dates

August 26, 2021 to September 4, 2021

Peak strength

Category 4, 130 kt (150 mph)

Lowest pressure

929 mb (27.43 inHg)

Landfall

Yes

Accumulated cyclone energy

10.6

Tropical-storm-force wind reached

250 nmi (463 km, 288 mi) from the center at its widest

Hurricane-force wind reached

45 nmi (83 km, 52 mi) from the center at its widest

Eyewall radius at its peak

10 nmi (19 km, 12 mi)

Overall size

480 nmi (889 km, 552 mi) to the outermost closed isobar

Peak gust in the best track

160 kt (184 mph)

Fastest the center moved

28 kt (32 mph)

Identifier

AL092021

Radar at KHDC as it neared land, Aug 29, 16:55 UTC

The sources count different things and are not added together.

Landfall points the US agencies flagged in the best track. The nearest town is named from the site’s gazetteer, not from the report.

NOAA’s Storm Events database, the record National Weather Service offices compile months after a storm, as compiled March 2026.

Deaths

87 (58 direct, 29 indirect)

Injuries

25

Property damage

$13 billion

Crop damage

$17 million

Events recorded

840 in 75 reports from 27 states and marine areas

State by state

What was recorded

331 flash flood, 124 flood, 90 thunderstorm wind, 81 marine thunderstorm wind, 44 tropical storm, 37 hurricane (typhoon), 35 tornado, 23 storm surge/tide, 23 heavy rain, 15 marine tropical storm, 11 marine hurricane/typhoon, 8 tropical depression, 8 coastal flood, 6 strong wind, 2 waterspout, 1 funnel cloud, 1 debris flow.

35 tornadoes and 2 waterspouts recorded in the United States, strongest first.

The strongest winds National Weather Service offices recorded with this storm. An estimated figure is a forecaster’s judgment from the damage, not an instrument reading.

From the Storm Events narratives, unedited.

The parish suffered extreme impacts as the eyewall raked much of the parish from Port Fourchon to Lockport as it moved inland. Nearly all buildings in the parish suffered some level of damage, with widespread catastrophic structural damage occurring across much of the parish. Numerous homes, businesses and public buildings lost significant portions of their roof structures, with some homes totally destroyed. Nearly every building in the fishing community of Leeville suffered catastrophic damage. There was also substantial damage to at least four major medical facilities in the parish, including at least one emergency room taking on water during the storm. The parish���s emergency operations center also suffered significant roof damage. The entire parish was left without power or water service following the storm.

Lower Lafourche, Louisiana · Hurricane (Typhoon) · Aug 29, 09:00 UTC

The parish suffered widespread tree damage with many trees snapped or uprooted, some falling on homes or power lines. Numerous power poles were also snapped. The strong winds also caused widespread minor to moderate structural damage such as shingle and minor roof damage, awning damage, signs blown over and other minor damage. A few structures suffered major damage or were destroyed. Several public buildings were damaged, including Kenner City Hall. 100% of the parish was left without power due to a catastrophic failure of the electric system serving all of metro New Orleans, including a major transmission tower collapsing at Nine Mile Point. There were four indirect fatalities in the parish: three due to carbon monoxide poisoning and one nursing home death.

Upper Jefferson, Louisiana · Hurricane (Typhoon) · Aug 29, 09:00 UTC

A tornado touched down just north of the Edgewater Mall near Rue Petit Bois where it uprooted a tree and caused minor roof damage. Numerous shingles were missing from a bank on Pass Road and a portion of a roof was torn off a Dunkin Donuts. The tornado tracked north-northeast and produced minor roof damage and downed trees along Lakeview Drive and Fairview Drive. Shingles were missing from an apartment complex on Big Lake Road. A convergent pattern was evident in the tall marshy grass along the south shore of Big Lake. The tornado crossed Big Lake and caused minor damage to several homes near the Sunkist Country Club, including along Barrett Road, Rue Maison, Lackland Drive, and Club Moss Drive. Survey conducted remotely via high-res aerial photography. Peak estimated winds of 85 mph.

Harrison, Mississippi · Tornado · Aug 30, 13:50 UTC

A tornado touched down just north of the Mississippi Coast Coliseum. A half dozen houses along Pinewood Dr and Arbor Dr sustained minor roof damage. An air conditioner was blown off its pad and several trees and large branches were snapped. The tornado tracked north across Pass Rd where a portion of the roof was torn off a restaurant and bank, and several trees were downed in an adjoining parking lot. The tornado then tracked to the north-northwest, eventually crossing Popps Ferry Rd toward Carter Rd, Martin Rd, and Old Bay Rd. Numerous houses with shingle damage, downed fences and a few downed trees were noted in the tornado's path. The tornado tracked along Carmargue Ln and either dissipated shortly thereafter or continued as waterspout in Big Lake. Survey conducted remotely via high-res aerial photography. Estimated peak winds of 80 mph.

Harrison, Mississippi · Tornado · Aug 30, 13:56 UTC

Easterly winds increased into the 25 to 35 mph range with gusts over 35 mph during the late evening of the 30th into the early morning of the 31st in advance of the center of Tropical Depression Ida in northeast Mississippi. Ida eventually tracked across far northwest Alabama during the morning of the 31st. The gusty winds and heavy rains contributed to numerous trees and power lines being knocked down at least fifteen different locations in Lauderdale County. The trees blocked roads in a few locations. A knocked down tree fell on a house causing a gas leak in Florence. A transformer and power pole and lines were knocked down in Waterloo.

Lauderdale, Alabama · Tropical Depression · Aug 31, 04:00 UTC

Flooding was observed along different roadways across the county, some of which became impassable. This included at the intersection of Elkhurst Road and Blue Knob near the town of Clay and along Mountain Home Road near Ivydale. In Clay, portions of Upper Two Run were washed out due to high water. Water rose from its banks along Porter Creek and flowed around the playground equipment of H.E. White Elementary School in Bomont, which also spilled onto Bomont Road. This resulted in portions of the roadway to become impassable. Several mudslides were observed on the morning of September 1st, including on Route 16 near the Hartland Bridge and along Route 4 south of Ivydale.

Clay, West Virginia · Flash Flood · Sep 1, 11:50 UTC

Numerous flooding, with water rescues reported across Dauphin County. Some areas that reported flash flooding include Hockensville Road and Hannover Street in South Hanover Township, areas near the Hershey Country Club at Derry Road, Richardson Road in Lower Swatara Township, Swatara Creek Park in South Hanover Township, McCorkle Road between Jacobs Creek and Church Road, Church Road between Laurie Avenue and Ney Road, Wood Road between Bullfrog Valley Road to Limeric, Eby Road from Meadow Lane to Royal Road, SR743 between Lingle Avenue and Bindnagle Road, Bachmanville Road between Meadow Road and Felty Mill Road. A mobile home park near Highspire was also evacuated due to flooding.

Dauphin, Pennsylvania · Flash Flood · Sep 1, 18:00 UTC

Significant flash flooding reported across York County. The NWS issued a Flash Flood Emergency at the request of the county when water rescues increased during the evening rush hour. 27 water rescues were reported. Tyler Run Creek at York College overflowed its banks, and several homes were submerged in water. Several roads sustained damage from flooding, including Valley Road in Newberry Township, West College Avenue in West Manchester Township, Indian Rock Dam Road in West Manchester Township, Iron Ridge Road between Old Hanover Road and Route 116 in Heidelberg Township and West Canal Road in Paradise Township. In Goldsboro, damage to Valley and Pines Roads was reported.

York, Pennsylvania · Flash Flood · Sep 1, 21:30 UTC

The water level rose into major flood stage, cresting at 22.10 feet at 2:15 PM on the 2nd of September. The water level rose above flood stage, cresting at 19.03 feet at 4:45 AM on the 23rd of September. Significant lowland flooding occurred along the river, with backwater flooding also occurring. Numerous roads were closed. Water reached the parking lot at Gambrill Mill along the Monocacy Battlefield. Backwater flooding from Carroll Creek also approached the underside of the bridge leading to the Frederick city wastewater treatment plant. Maryland Route 26 was flooded near the Monocacy River bridge and water reached Gambrill Mill on the Monocacy National Battlefield. Much of Pinecliff Park and Rivermist Park were flooded. Buckeystown Community Park was also flooded.

Frederick, Maryland · Flood · Sep 2, 00:22 UTC

The New York City Subway experienced flooding in many areas of the system and the MTA reported that service was extremely limited due to the flooding. This included reports of flooding at the Inwood-207th Street station (A line), excessive water on the tracks of the 2, 3, and 4 lines between Brooklyn and Manhattan, flooding of the N, R, and W lines in Manhattan and Queens, and major flooding at the 28th Street station on the 1, 2, and 3 lines in Chelsea. Service remained suspended on all but four lines at the start of the Thursday morning (September 2nd) rush. Overall the flooding resulted in an estimated $54 million in damage and repair costs to MTA infrastructure.

New York, New York · Flash Flood · Sep 2, 02:57 UTC

The Hackensack River at River Vale exceeded its minor flood stage of 5.5 feet at 11:30pm EDT. The river then continued to rise quickly, surpassing moderate flood stage (6.5 feet) by 12:15am EDT September 2nd and major flood stage (8.0 feet) by 12:30am EDT. The river then crested at a height of 11.05 feet at 4:00am EDT September 2nd. After falling through much of the morning, the river experienced a secondary crest of 10.73 feet at 3:45pm EDT September 2nd. The river did not fall back below flood stage until 11:45am EDT on September 3rd. The crest of 11.05 feet is the third highest on record at this location behind crests of 12.26 feet in August 2011 and 12.19 feet in April 2007.

Bergen, New Jersey · Flash Flood · Sep 2, 03:30 UTC

A weak tornado briefly touched down at 130 AM in Dennis early in the morning and lasted for less than one minute. Damage was observed near the intersection of East Bay View Road and Wampanoag Trail. One home sustained damage when a window of a sun porch was blown in and others on an adjacent side were blown out. Outside patio furniture was lofted and landed across the street. Another house across the street had shingles blown off the roof in the opposite direction from other damage that was observed. Three large oak trees in the area also were blown down. One resident received the tornado warning prior to 1 AM and was able to seek shelter in the basement. The estimated maximum wind speed was 75 mph.

Barnstable, Massachusetts · Tornado · Sep 2, 05:30 UTC

In Fall River, flash flooding began as early as 247 AM EDT (147 AM EST), when Bedford Street and Stinziano Street became impassable. The flash flooding then became widespread as rainfall increased. At 321 AM EDT, Cove Street was flooded and impassable. A car was stuck in the flood waters and a person needed to be rescued. By daybreak, numerous roadways were flooded and impassable. Busy Route 24 was shut down in both directions due to flooding, with stalled vehicles blocking the highway. The northbound ramp to Route 24 on I-195 also was flooded, with cars stuck. A portion of Spencer Street had significant damage due to the rain. On South Main Street, a building undergoing renovations collapsed due to the heavy rainfall. A CoCoRAHS observer in Fall River recorded a total of 4.25 inches or rain but a CoCoRAHS observer in nearby Fairhaven recorded 6.34 inches.

Bristol, Massachusetts · Flash Flood · Sep 2, 06:47 UTC

Multiple reports of flooding via members of the public and an off duty NWS meteorologist. Video reports were received via social media of street flooding in Downtown Miami and Brickell. Water was fairly deep in the right two lanes of Biscayne Boulevard southbound and water almost halfway up vehicle tires in a parking lot north of the Freedom Tower. Also, reports were received of standing water at knee level (around 1-2 feet deep) near Mary Brickell Village and adjacent locations, causing vehicles to stall and become stranded, as well as water encroaching on businesses. Sandbags had to be used to keep water from entering. Rainfall observations from the general area indicated about 3 inches of rain.

Miami-Dade, Florida · Flash Flood · Sep 2, 19:00 UTC

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A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.

• Tropical cyclone report, National Hurricane Center
• Every advisory and discussion NHC issued while it was live
• Best track as KMZ, National Hurricane Center
• Best track as a shapefile, National Hurricane Center
• Wikipedia article: Hurricane Ida