Click below to see available storms and available data files for each storm. Additional information about the available data and methods used is listed below.

Notes on the HWind Legacy Archive

  • Data reflects observations captured in real-time as the storm evolved, and post-event
  • Available data formats are listed below. The number and type of files varies by storm.
    • Map - Image of wind field size and intensity for a given time. Available at different zoom levels and domain sizes.
    • Data coverage plots - Image showing data sources used to inform files for a given time.
    • Gridded hazard data - File representing wind conditions over a gridded domain for a given time. More information on this format can be found here.
    • Shapefiles - Mapping file reflecting wind conditions on a point grid.
    • Metadata - XML file with additional information about data.
  • Methods used to conduct data analyses have evolved over time.
  • Grid spacing is on the order of 6 km and maximum domain size varies but is typically 8 x 8 degrees.
  • There are known errors in some of the data coverage, mapping. and gridded products. Please contact support@rms.com with any questions.
  • If intending to use the legacy archive data for storm surge and wave modeling, it is recommended that wind speeds be converted from a maximum 1-minute sustAned wind speed to at least a ten minute (or longer) mean wind speed. This conversion better reflects how the ocean and wave profiles respond to winds. For more information, please refer to the list of peer-reviewed HWind citations.
  • Most analyses were conducted in real-time. As a result, the storm positions are typically extrapolated from earlier data and therefore not accurate