Overall Green alert Flood
in United States

Event summary

This flood can have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID FL 1101040
Death: 86
Displaced: 7778
Countries: United States
From - To 12 Aug - 15 Sep

GDACS Score

For more info on GDACS alert score click here.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Hurricane Ida, USA, August 2021Hurricane Ida made landfall in Louisiana on 29 August with winds of 230 km/h, making it the fifth-strongest hurricane ever to hit mainland USA. Storm surge of around 0.7 metres was reported along coastlines of northern Florida and southern Mississippi. In southern Louisiana storm surged reached 1.54 metres at Grand Isle. Ida also brought heavy rainfall of 250 to 400 mm. As a result of storm surge and rainfall, flooding was reported in wide areas of southern Louisiana, although authorities said the new levee system worked well in protecting New Orleans. Some levees were reported as breached however, for example along the Mississippi River at Braithwaite, Carlisle, LA, USA. Power and telecoms outages along with blocked roads hindered assessments. As of 30 August officials in Louisiana said 1 person had died in floods (another was killed by tree fall) and hundreds rescued from flooded areas, but feared numbers could rise.Tue 31 Aug 2021FloodList provided by Copernicus GloFAS
Detailed event map. European Union, 2022. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Articles: 544 | About casualties: 44 | Last hour: 0

See the shocking flooding impacting the US in Hurricane Ida's wake2021-09-04T00:55+0200.

Flooding has killed at least nine people, swept away cars, submerged subway lines and grounded flights in New York and New Jersey as the remnants of Hurricane Ida brought torrential rains to the area this week. New York City Mayor Bill de B
...(more)
Reportan 29 muertos por ciclón Ida en EEUU2021-09-04T00:33+0200.

Al menos 29 personas han muerto en Estados Unidos como consecuencia del paso del ciclón Ida, que tras degradarse a tormenta tropical, ha causado estragos en la costa este de Estados Unidos, donde ha provocado precipitaciones sin precedentes
...(more)
NY, NJ officials vow to improve extreme weather resilience as Ida deat ... 2021-09-04T00:30+0200.

Officials in New York and New Jersey said on Friday that improvements to infrastructure were needed to deal with extreme weather events after flash flooding from Hurricane Ida caught the U.S. Northeast off guard, killingat least 46 people.
...(more)
U.S. NY, NJ officials vow to improve extreme weather resilience as Ida ... 2021-09-04T00:22+0200.

NEW YORK, Sept 3 (Reuters) - Officials in New York and New Jersey said on Friday that improvements to infrastructure were needed to deal with extreme weather events afterflash flooding from Hurricane Ida caught the U.S. Northeast off guard,
...(more)

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (33), (2), NASA (7), WMO (1), INFORM (2),