Overall Green alert Flood
in United States

Flood impact summary

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

GDACS ID: 1102430
Deaths: 1
Displaced: 405
Region: Long Beach
Countries: United States
From - To 09 Jan - 03 Feb
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 02-02-2024

SENDAI Indicator A N Country Location Info
death 1 United States Corrigan
SENDAI Indicator B N Country Location Info
affected 10 United States Prince George s County
affected 12 United States Paterson
affected 3 United States Delran
affected 1 United States Northampton County
affected 155 United States Cape Coral
affected 50 United States Blue Lake
affected 6 United States San Antonio
affected 1 United States Santa Cruz
displaced 50 United States San Jacinto County
displaced 50 United States Yantic
displaced 50 United States Carlstadt
displaced 20 United States Paterson
displaced 15 United States Darby
displaced 20 United States Hampton Beach
displaced 200 United States San Diego
rescued 17 United States Conroe
rescued 1 United States Pittsburgh
rescued 1 United States Macomb Township
rescued 4 United States Long Beach
rescued 1 United States Corinne Drive
rescued 24 United States San Diego
SENDAI Indicator C N Country Location Info
houses 20 United States Wilmington
houses damaged 50 United States Baltimore
houses damaged 50 United States Annapolis
houses damaged 50 United States Delran
houses damaged 20 United States Hampton Beach

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2024-01-02 / 2024-02-10  

Timeline of revisions

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDAlert ColorPopulation affectedStart DateEnd DateSource
1 0 deaths and 155 displaced 09 Jan 2024 11 Jan 2024 GLOFAS
2 0 deaths 15 Jan 2024 17 Jan 2024 GLOFAS
3 0 deaths 15 Jan 2024 17 Jan 2024 GLOFAS
4 0 deaths 15 Jan 2024 18 Jan 2024 GLOFAS
5 0 deaths 22 Jan 2024 24 Jan 2024 GLOFAS
6 0 deaths and 200 displaced 22 Jan 2024 24 Jan 2024 GLOFAS
7 0 deaths 22 Jan 2024 24 Jan 2024 GLOFAS
8 1 deaths and 50 displaced 22 Jan 2024 24 Jan 2024 GLOFAS
9 0 deaths 28 Jan 2024 30 Jan 2024 GLOFAS
10 0 deaths 25 Jan 2024 31 Jan 2024 GLOFAS
11 0 deaths 01 Feb 2024 03 Feb 2024 GLOFAS

Flood polygons

This polygon (translucent blue with a blue border) is drawn by the analysts recording the flood event. It is meant to include all the areas reported as affected, by official source or the media. It does not represent the area actually under water.

Microwave flood detection

Flooded area, as detected in microwaves by the Global Flood Detection System of the JRC, based on NASA TRMM/GPM observations. This system has a rather low resolution (of 5-10km) but is not affected by clouds.
For more details, see http://www.unisdr.org/files/9622_LBNA23303ENC002.pdf.
The areas with a flood signal along the coast are an artefact of the system and should not be considered.

Optical Flood detection

Flooded area as detected in optical wavelengths by NASA/MODIS, known as "MODIS Flood Product". Data are made available by NASA GSFC Flood Mapping Project, http://oas.gsfc.nasa.gov/floodmap/index.html. Resolution of 250m, heavily affected by cloud cover.