Scalable Stormwater, River, and Flood Modeling

XPStorm is for dynamic urban stormwater and river systems modeling. It gives you confidence in your model to clearly convey results to engineers, planners, and the general public.

Drive Leading Stormwater Solutions

FEMA approved in the U.S. for NFIP submissions, XPStorm is the solution chosen by hundreds of engineers, scientists, and modelers worldwide.

Drive Leading Stormwater Solutions
Tailor your Model to Meet your Needs

Tailor your Model to Meet your Needs

XPStorm takes 1D and 2D modeling and allows you to use it for stormwater and river conveyance sizing, site development, and medium-to-large flood studies, river modeling, and watershed studies.

Clearly Interpret Results

Easily convey output results to assess your options. Clearly communicate results to all stakeholders and empower better decision-making.

Clearly Interpret Results
Drops of rain on water surface

What you can do with XPStorm

  • Stormwater Management

    Combine hydrology and hydraulics in the same model to save valuable time. Complete stormwater and watershed Master Plans to confidently manage capital planning and mitigate flood risks.

    Stormwater Management
  • River Systems and Floodplain Performance

    Run floodplain simulations for complete urban environments in a fraction of the time compared to competing, specialized tools. Generate flood and hazard maps, emergency evacuation plans, capital improvement plans, flood risk identification and river restoration modeling.

    River Systems and Floodplain Performance
  • Emergency Action Planning

    Conduct extensive “What if” scenario simulations to plan for intense storm events and develop action plans for emergency preparedness. Our FEMA–approved and U.K. EA-tested software contains tools to assist emergency personnel in identifying important evacuation routes.

    Emergency Action Planning
  • Conduct Scenario Analysis

    XPStorm’s Scenario Manager lets you run multiple simulations in parallel – while keeping track of all changes. Conduct comparative analysis of storm events or system expansions as well as evaluate the performance of green infrastructure.

    Conduct Scenario Analysis
  • Build Models Efficiently

    Jump start your model by importing GIS, CAD, HEC-RAS data and more so that you can construct models from various data sources in a single repository. XPStorm's graphical environment allows the modeler to create and modify the network interactively on the screen using just a mouse and graphic tools.

    Build Models Efficiently
  • Versatile Reporting

    Take the simulation results back to your production environments – tailored to meet your specific applications. Color coded maps display time series such as water depth and elevation. Scaled vectors can display flow or velocity. All 2D maps can be exported to GIS or CSV data files.

    Versatile Reporting
Rainfall on leaves
  • On Demand Webinar

    Hydrology 101 with XPSWMM and XPStorm

    Listen to an introductory webinar for XPSWMM and XPStorm. Topics include template settings for runoff, catchment data from GIS background data, global storms and rain on grid.

  • On Demand Webinar

    Creating a Dynamic Sewer Master Plan for Today and the Future

    Even if you're just monitoring a current system or planning for future growth, you'll want to have a "digital twin" of what is happening underground. In this webinar, we discuss how you can take the guesswork out of designing and analyzing sewer systems in a climate of change.

  • On Demand Webinar

    Minimize Risk from Extreme Flooding Events

    This educational webinar looks at the technology available today where models can help plan for the next extreme event or assist with real-time scenario forecasting during the event. It discusses flood boundary and hazard mapping, evacuation route planning, and more.

On Demand Webinar

Hydrology 101 with XPSWMM and XPStorm

Listen to an introductory webinar for XPSWMM and XPStorm. Topics include template settings for runoff, catchment data from GIS background data, global storms and rain on grid.

On Demand Webinar

Creating a Dynamic Sewer Master Plan for Today and the Future

Even if you're just monitoring a current system or planning for future growth, you'll want to have a "digital twin" of what is happening underground. In this webinar, we discuss how you can take the guesswork out of designing and analyzing sewer systems in a climate of change.

On Demand Webinar

Minimize Risk from Extreme Flooding Events

This educational webinar looks at the technology available today where models can help plan for the next extreme event or assist with real-time scenario forecasting during the event. It discusses flood boundary and hazard mapping, evacuation route planning, and more.