Overall Green Flood alert in Italy from 30 Oct 2023 01:00 UTC to 04 Nov 2023 01:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Flood

in Italy

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:	1102301
Deaths:	10
Displaced:	510
Region:	Lamporecchio, Montemurlo, Rosignano Marittimo, San Miniato, Florence, Calcinaia, Campi Bisenzio, Pistoia
Countries:	Italy
From - To	30 Oct - 04 Nov
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 05-11-2023

SENDAI Indicator A	N	Country	Location
death	1	Italy	Lamporecchio
death	1	Italy	Montemurlo
death	2	Italy	Rosignano Marittimo
death	1	Italy	Campi Bisenzio
death	1	Italy	Rosignano Marittimo
death	2	Italy	Pistoia
death	2	Italy	Montemurlo
missing	1	Italy	Florence
missing	2	Italy	Lamporecchio
missing	3	Italy	Florence

SENDAI Indicator B	N	Country	Location
affected	12000	Italy	Campi Bisenzio
displaced	300	Italy	Lamporecchio
displaced	30	Italy	Ponte dell Olio
displaced	20	Italy	Nago-Torbole
displaced	10	Italy	Parco Lambro
displaced	30	Italy	San Miniato
displaced	120	Italy	Calcinaia

SENDAI Indicator C	N	Country	Location	Info
houses damaged	2	Italy	Rezzoaglio

Satellite Observation

Satellite-based Flood extent provided by GLOFAS

Overall of the satellite-based flooded area from / to : 2023-10-23 / 2023-11-11

Timeline of revisions

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

ID	Alert Color	Population affected	Start Date	End Date	Source
1		0 deaths and 60 displaced	30 Oct 2023	01 Nov 2023	GLOFAS
2		10 deaths and 450 displaced	02 Nov 2023	04 Nov 2023	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.

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.