Overall Green alert Flood for United Kingdom
in United Kingdom

Flood impact summary

Flood United Kingdom is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID: 1101145
Deaths: 3
Displaced: -
Region: Dumfries and Galloway, Pembrokeshire, Allerdale, Copeland
Countries: United Kingdom
From - To 20 Oct - 31 Oct
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 01-11-2021

SENDAI Indicator A N Country Location Info
death 3 United Kingdom Pembrokeshire
SENDAI Indicator B N Country Location Info
rescued 10 United Kingdom Cornwall
rescued 1 United Kingdom Sutton Mandeville
rescued 4 United Kingdom Dumfries and Galloway
rescued 6 United Kingdom Copeland
SENDAI Indicator C N Country Location Info
houses damaged 40 United Kingdom Allerdale
SENDAI Indicator D N Country Location Info
bridges destroyed 2 United Kingdom Dumfries and Galloway

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2021-10-13 / 2021-11-07  

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 20 Oct 2021 22 Oct 2021 GLOFAS
2 3 deaths 27 Oct 2021 31 Oct 2021 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.