Spring 2023 flood mapping

The purpose of this dataset is to locate the events related to the spring 2023 floods recorded by the Deputy Directorate General of Operations of the Ministry of Public Security. All data can be viewed on an interactive map and available as WMS and WFS web services.

To monitor the status of watercourses live, please refer to the [Vigilance - Flood Monitoring] application (https://vigilance.geo.msp.gouv.qc.ca/)

List of available data:

  • Open water extent polygons derived from satellite data: extent limits of open waters derived from radar satellite images.
  • Location of flood events since April 14, 2023: points approximately locating the flood events recorded by the Operations Directorate of the Ministry of Public Security as of April 14, 2023 (derived from the [Civil Security Events] dataset (https://www.donneesquebec.ca/recherche/dataset/evenements-de-securite-civile)).

  • Municipalities affected by flood events since April 14, 2023: cartographic representation of municipalities affected by flood events since April 14, 2023.

  • Sentinel-2 satellite image: satellite image covering flooded areas and presented as a colored compound using short band infrared, near infrared, and red wavelengths.

#Note:

Satellite acquisitions for the RADARSAT Constellation Mission (RCM) are planned in collaboration with Natural Resources Canada. The images obtained are processed by the emergency geomatics services of Natural Resources Canada as soon as possible and then the open water polygons are distributed as open data on Data Canada and on Data Quebec. Other optical or radar acquisitions may have been obtained by the Ministry of Public Security (MSP) from private suppliers. The Sentinel-1 and Sentinel-2 acquisitions released in open data by the European Space Agency (ESA) were processed by the Dromedaire Géo-Innovations firm.

This third party metadata element was translated using an automated translation tool (Amazon Translate).

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 20:02 (UTC)
Created April 17, 2026, 20:02 (UTC)
contact_email outils_securite_civile@msp.gouv.qc.ca
contact_person {"en": "Government and Municipalities of Québec; Government and Municipalities of Québec; Ministère de la Sécurité publique", "fr": "Gouvernement et municipalités du Québec; Gouvernement et municipalités du Québec; Ministère de la Sécurité publique"}
criticality_level []
data_dictionary EPSG:32198,EPSG,unknown
geographic_scope []
open_canada_collection fgp
open_canada_date_published 2023-04-18 00:00:00
open_canada_keywords {"en-t-fr": ["Aléa", "Carte", "Catastrophe", "Crue", "Spring flood", "Flood", "Government information"], "fr": ["Aléa", "Carte", "Catastrophe", "Crue", "Crue printannière", "Inondation", "Information gouvernementale"]}
open_canada_subject ["form_descriptors", "nature_and_environment", "science_and_technology"]
sensitivity_level unrestricted
title_fr Cartographie des inondations du printemps 2023
update_frequency unknown