Hurricane Dorian

From OpenStreetMap Wiki
Jump to navigation Jump to search
General Information

Hurricane Dorian is an activation of the Humanitarian OpenStreetMap Team (HOT).

Hurricane Dorian as seen from the International Space Station on 2 September 2019

For Aid Organizations

Map and Data Services

Map showing the editing activity of OSM contributors during Typhoon Haiyan

About OpenStreetMap

OpenStreetMap offers an online map (and spatial database) which is updated by the minute. Various tools and services allow data extracts for GIS specialists, Routable Garmin GPS data, Smartphone GPS navigation, and other device-compatible downloads. With an internet connection, regular syncing is possible with open access to the community contributed data as it comes in, with OpenStreetMap's bulk data downloads ideal for use offline. In addition, maps can also be printed to paper.

Browse the Activation Area to get a feel for the data that is currently available. Different map styles including an Humanitarian style can be selected on the right side, and some data may not render (appear) on the map, but could be exported from the underlying database (See export section below).

Paper Maps

Poster size Maps and normal sized paper atlases of custom areas can be printed:

  • See OSM_on_Paper for an overview and list of platforms and services for printing maps.
  • We suggest FieldPapers Paper Maps with grid for field survey or general navigation purposes.

Exporting OpenStreetMap data

See Downloading data for instructions on getting large scale map data, or see the focused exports below:

Offline Road Navigation with small devices

With the availibility of Small communication devices, Navigation Offline data proves to be very useful to the humanitarians deployed in foreign countries. We support the humanitarian NGO's using navigation data and invite them to give us feedback on the utilization of these devices in the context of field deployment.

  • See Software/Mobile for more information on using OSM in portable devices.
  • See also Mobile Mapping on for information on mapping in the field.

Usage of OSM data for Humanitarian Missions

About This Disaster Mapping Project

About HOT

Hot logo with text.svg
  • To learn more about the Humanitarian OpenStreetMap Team (HOT), explore more of our wiki-pages (root: HOT) or our website We are a global community of mostly volunteers, we are also a US Nonprofit able to contract with organizations (email info at to contact our staff), we are also a 501-c-3 charitable organization.

History of this Activation

Reactivity of the OSM Community

  • August 26th - As Tropical Cyclone Dorian formed into a major storm, several community members and HOT activators were monitoring.

HOT Activates

  • August 26th - HOT activators perform size-up; initial path well mapped until Dominican Republic. Decision to wait is made.
  • September 1st - As Hurricane Dorian stalled over the Bahamas as a category 5, requests were made by the Pacific Disaster Center and the Bahamas National GIS Centre for geodata of the Bahamas.
  • September 2nd - HOT Activators re-evaluate existing mapping of the Bahamas, isolated the areas lacking roads and buildings and begin launching projects for the islands most directly impacted.
  • September 6th - Mappers completed the mapping of areas requested in the Bahamas.

Effort made

  • September 5th - 91 mappers have made over 75,000 changes to OpenStreetMap
  • September 7th - 107 mappers have made 120,000+ map changes, including adding over 1,600 roads and 9,000 buildings

Source: ResultMaps

For Mappers

  • Activators have concluded this successful response; thank you!

How You Can Contribute

Learn to Map

  • Most of our volunteer needs are for remote OSM contributors, visit to get started.
  • See Bahamas Wiki-page for more information about OSM in the Bahamas.

Mapping Priority

  • Please choose from highest priority first
  • Experienced mappers are also asked to participate in validating completed tasks. Information on validating can be found here
Project Priority Location What to map Imagery Source Task Mapping Status Task Validation Status
6653 Complete Abaco Islands Buildings MAXAR Complete (100%) Complete (100%)
6656 Complete Abaco Islands Buildings MAXAR Complete (100%) Complete (100%)