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, Maryland, Virginia, None, Washington
Countries: United States
From - To 08 Jul - 14 Jul
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 08-07-2019

SENDAI Indicator B N Country Location Info
affected - United States Kearney
displaced 10000 United States Plaquemines Parish
rescued 100 United States None, Washington

Satellite Observation


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 08 Jul 2019 09 Jul 2019 FloodList
2 0 deaths 08 Jul 2019 12 Jul 2019 FloodList
3 0 deaths 08 Jul 2019 14 Jul 2019 FloodList
4 0 deaths and 10000 displaced 10 Jul 2019 10 Jul 2019 FloodList

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.