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: 1100106
Deaths: 0
Displaced: 10000
Region: District of Columbia, Louisiana, Maryland, Nebraska, Pennsylvania, Virginia, Plaquemines Parish
Locations: United States
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assesement as of 10-07-2019

SENDAI Indicator B N Country Location
displaced 10000 United States Plaquemines Parish, Louisiana

Satellite Observation


Timeline of revisions

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

IDAlert ColorPopulation affectedSourceDate added
1 0 deaths and 10000 displaced GLOFAS 10 Jul 2019 00:00
2 0 deaths GLOFAS 12 Jul 2019 00:00
3 0 deaths GLOFAS 14 Jul 2019 00:00
4 0 deaths GLOFAS 09 Jul 2019 00:00

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.