Welcome to the Hazard History & Consequence Tool.

Developed by NYC Emergency Management as an enhancement of the 2019 Hazard Mitigation Plan, this tool provides a user-friendly, accessible, and comprehensive look at NYC’s hazards and their consequences.


  • Central, archived resource to inform risk and vulnerability assessments
  • Repository of historic hourly weather station data
  • Ability to enhance agency emergency planning, response, and community outreach by localizing risk
  • Documented historical losses to better inform benefit-cost analysis

The Hazard History & Consequence (HH&C) Tool is still in development, suggested improvements to the site or general comments are welcome. To send any suggestions or to report bugs, please contact:
Contact Information forriskrecovery@oem.nyc.gov

User Guide Link Click here to view the User Guide.